{"id":1655,"date":"2024-02-10T08:05:33","date_gmt":"2024-02-10T08:05:33","guid":{"rendered":"https:\/\/mvermeulen.org\/perf\/?page_id=1655"},"modified":"2024-02-10T21:15:21","modified_gmt":"2024-02-10T21:15:21","slug":"spark-tpcds","status":"publish","type":"page","link":"https:\/\/mvermeulen.org\/perf\/workloads\/phoronix\/spark-tpcds\/","title":{"rendered":"spark-tpcds"},"content":{"rendered":"\n<p>A test of Apache Spark data analytics engine that uses the TPC DS data set.  There are a variety of different scale factors and I picked the smallest (1GB) one. Looks like many independent processes starting up and competing with each other<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"960\" src=\"https:\/\/mvermeulen.org\/perf\/wp-content\/uploads\/sites\/7\/2024\/02\/systemtime-48.png\" alt=\"\" class=\"wp-image-1671\" srcset=\"https:\/\/mvermeulen.org\/perf\/wp-content\/uploads\/sites\/7\/2024\/02\/systemtime-48.png 1280w, https:\/\/mvermeulen.org\/perf\/wp-content\/uploads\/sites\/7\/2024\/02\/systemtime-48-1024x768.png 1024w, https:\/\/mvermeulen.org\/perf\/wp-content\/uploads\/sites\/7\/2024\/02\/systemtime-48-768x576.png 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n\n\n\n<p>Topdown profile has a somewhat uniform pattern with frontend stalls highest followed by backend stalls and then retirement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"960\" src=\"https:\/\/mvermeulen.org\/perf\/wp-content\/uploads\/sites\/7\/2024\/02\/amdtopdown-50.png\" alt=\"\" class=\"wp-image-1673\" srcset=\"https:\/\/mvermeulen.org\/perf\/wp-content\/uploads\/sites\/7\/2024\/02\/amdtopdown-50.png 1280w, https:\/\/mvermeulen.org\/perf\/wp-content\/uploads\/sites\/7\/2024\/02\/amdtopdown-50-1024x768.png 1024w, https:\/\/mvermeulen.org\/perf\/wp-content\/uploads\/sites\/7\/2024\/02\/amdtopdown-50-768x576.png 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n\n\n\n<p>AMD metrics form a composite which is about 1\/3 of the cores, little foating point and a balance of backend stalls and frontend stalls.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>elapsed              2563.010\non_cpu               0.347          # 5.55 \/ 16 cores\nutime                13088.108\nstime                1132.235\nnvcsw                34528841       # 98.13%\nnivcsw               656860         # 1.87%\ninblock              1368           # 0.53\/sec\nonblock              26056320       # 10166.30\/sec\ncpu-clock            14173328377310 # 14173.328 seconds\ntask-clock           14189916738191 # 14189.917 seconds\npage faults          158178697      # 11147.260\/sec\ncontext switches     35050820       # 2470.122\/sec\ncpu migrations       2945275        # 207.561\/sec\nmajor page faults    1436           # 0.101\/sec\nminor page faults    157988844      # 11133.881\/sec\nalignment faults     0              # 0.000\/sec\nemulation faults     0              # 0.000\/sec\nbranches             12995948902169 # 185.390 branches per 1000 inst\nbranch misses        417670677207   # 3.21% branch miss\nconditional          10044939074422 # 143.293 conditional branches per 1000 inst\nindirect             566999541775   # 8.088 indirect branches per 1000 inst\ncpu-cycles           57647593318141 # 1.41 GHz\ninstructions         69419120566839 # 1.20 IPC\nslots                117446980921476 #\nretiring             22881925600692 # 19.5% (21.5%)\n-- ucode             109782492975   #     0.1%\n-- fastpath          22772143107717 #    19.4%\nfrontend             36918702440536 # 31.4% (34.6%)\n-- latency           26967162694608 #    23.0%\n-- bandwidth         9951539745928  #     8.5%\nbackend              39036215082449 # 33.2% (36.6%)\n-- cpu               4520009697090  #     3.8%\n-- memory            34516205385359 #    29.4%\nspeculation          7798993306747  #  6.6% ( 7.3%)\n-- branch mispredict 7451315350246  #     6.3%\n-- pipeline restart  347677956501   #     0.3%\nsmt-contention       10807946410505 #  9.2% ( 0.0%)\ncpu-cycles           57716551544796 # 1.41 GHz\ninstructions         69428598709591 # 1.20 IPC\ninstructions         23350152936573 # 42.997 l2 access per 1000 inst\nl2 hit from l1       834984325776   # 28.38% l2 miss\nl2 miss from l1      197745801865   #\nl2 hit from l2 pf    81789552151    #\nl3 hit from l2 pf    55741452735    #\nl3 miss from l2 pf   31463655952    #\ninstructions         23335198835565 # 13.720 float per 1000 inst\nfloat 512            31749          # 0.000 AVX-512 per 1000 inst\nfloat 256            11403708       # 0.000 AVX-256 per 1000 inst\nfloat 128            320141829109   # 13.719 AVX-128 per 1000 inst\nfloat MMX            0              # 0.000 MMX per 1000 inst\nfloat scalar         183565         # 0.000 scalar per 1000 inst\ninstructions         2672443        #\nopcache              993535         # 371.770 opcache per 1000 inst\nopcache miss         534563         # 53.8% opcache miss rate\nl1 dTLB miss         5594           # 2.093 L1 dTLB per 1000 inst\nl2 dTLB miss         1205           # 0.451 L2 dTLB per 1000 inst\ninstructions         2693856        #\nicache               1296595        # 481.316 icache per 1000 inst\nicache miss          111295         #  8.6% icache miss rate\nl1 iTLB miss         14             # 0.005 L1 iTLB per 1000 inst\nl2 iTLB miss         0              # 0.000 L2 iTLB per 1000 inst\ntlb flush            19             # 0.007 TLB flush per 1000 inst\n<\/code><\/pre>\n\n\n\n<p>Intel metrics show memory mostly within L2 and then some DRAM cost as well.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>elapsed              8380.999\non_cpu               0.367          # 5.87 \/ 16 cores\nutime                46568.294\nstime                2595.034\nnvcsw                89112638       # 96.31%\nnivcsw               3409464        # 3.69%\ninblock              23456          # 2.80\/sec\nonblock              73436816       # 8762.30\/sec\ncpu-clock            48919692612351 # 48919.693 seconds\ntask-clock           48960852673580 # 48960.853 seconds\npage faults          487650698      # 9960.012\/sec\ncontext switches     92042607       # 1879.922\/sec\ncpu migrations       10584073       # 216.174\/sec\nmajor page faults    7131           # 0.146\/sec\nminor page faults    486994765      # 9946.615\/sec\nalignment faults     0              # 0.000\/sec\nemulation faults     0              # 0.000\/sec\nbranches             39985955251966 # 183.407 branches per 1000 inst\nbranch misses        1113927239446  # 2.79% branch miss\nconditional          39985979802718 # 183.407 conditional branches per 1000 inst\nindirect             7765030992667  # 35.616 indirect branches per 1000 inst\nslots                481788959997902 #\nretiring             148500203514586 # 30.8% (30.8%)\n-- ucode             8919898775881  #     1.9%\n-- fastpath          139580304738705 #    29.0%\nfrontend             117129754401196 # 24.3% (24.3%)\n-- latency           64557678096631 #    13.4%\n-- bandwidth         52572076304565 #    10.9%\nbackend              126251192178491 # 26.2% (26.2%)\n-- cpu               49498446125835 #    10.3%\n-- memory            76752746052656 #    15.9%\nspeculation          91916657497903 # 19.1% (19.1%) high\n-- branch mispredict 87201606730124 #    18.1%\n-- pipeline restart  4715050767779  #     1.0%\nsmt-contention       0              #  0.0% ( 0.0%)\ncpu-cycles           58345810406384 # 1.31 GHz\ninstructions         88872102264774 # 1.52 IPC\nl2 access            1964322412910  # 38.871 l2 access per 1000 inst\nl2 miss              745410590775   # 37.95% l2 miss\ncpu-cycles           33006045384859 # 32.2% memory latency\nload stalls          9298802699856  #  0.0% l1 bound\nl1 miss              9680979924293  # 11.5% l2 bound\nl2 miss              5870505592862  #  9.3% l3 bound\nl3 miss              2814432069015  #  8.5% dram bound\nstore_stalls         1340860045301  #  4.1% store bound\n<\/code><\/pre>\n\n\n\n<p>Process overview gives us ~230k processes, though there may also be some processes we lost track.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>231283 processes\n\t6822 block-manager-s      363562.80 20323.12\n\t4621 block-manager-a      259252.12 14930.26\n\t4896 dispatcher-even      206070.87 11189.59\n\t2651 QueryStageCreat      122596.74  6911.70\n\t2448 shuffle-server-      103236.00  5615.38\n\t2448 shuffle-client-      103235.72  5615.22\n\t2448 map-output-disp      102785.84  5566.39\n\t1428 broadcast-excha      68925.97  3875.49\n\t1212 task-result-get      51194.50  2768.65\n\t918 spark-listener-      38514.06  2083.91\n\t1226 java                 25864.45  1415.75\n\t612 com.google.comm      25809.27  1404.07\n\t612 BoneCP-keep-ali      25809.26  1404.04\n\t612 BoneCP-pool-wat      25809.24  1404.04\n\t612 dispatcher-Bloc      25749.49  1396.69\n\t613 Finalizer            12932.19   707.87\n\t612 Common-Cleaner       12932.14   707.81\n\t306 org.apache.hado      12904.67   702.06\n\t306 rpc-boss-3-1         12904.67   702.06\n\t306 Timer-0              12904.66   702.05\n\t306 shuffle-boss-6-      12904.66   702.05\n\t306 derby.rawStoreD      12904.65   702.05\n\t306 rpc-server-4-1       12904.42   701.90\n\t306 rpc-server-4-2       12904.41   701.90\n\t306 rpc-server-4-3       12904.41   701.90\n\t306 rpc-server-4-4       12904.40   701.90\n\t306 rpc-server-4-5       12904.40   701.90\n\t306 rpc-server-4-6       12904.40   701.90\n\t306 rpc-server-4-7       12904.39   701.90\n\t306 rpc-server-4-8       12904.39   701.90\n\t306 rpc-client-1-1       12904.38   701.90\n\t306 rpc-client-1-2       12904.37   701.90\n\t306 rpc-client-1-3       12904.36   701.90\n\t306 rpc-client-1-4       12904.35   701.89\n\t306 rpc-client-1-5       12904.35   701.89\n\t306 rpc-client-1-6       12904.35   701.89\n\t306 rpc-client-1-8       12904.34   701.89\n\t306 rpc-client-1-7       12904.34   701.88\n\t306 Thread-0             12897.83   701.01\n\t306 shutdown-hook-0      12892.03   700.77\n\t306 element-trackin      12883.88   699.94\n\t306 netty-rpc-env-t      12877.76   698.82\n\t306 RemoteBlock-tem      12857.71   696.53\n\t306 dispatcher-Hear      12845.30   695.52\n\t306 heartbeat-recei      12845.18   695.51\n\t306 driver-heartbea      12843.53   695.40\n\t306 executor-kill-m      12842.95   695.38\n\t306 executor-heartb      12838.68   694.78\n\t306 task-starvation      12836.67   694.47\n\t306 task-abort-time      12836.64   694.47\n\t306 dag-scheduler-e      12833.26   694.03\n\t306 context-cleaner      12831.06   693.94\n\t306 SparkUI-54           12829.31   693.76\n\t306 SparkUI-55           12829.03   693.72\n\t306 SparkUI-56           12828.93   693.71\n\t306 SparkUI-57           12828.72   693.69\n\t306 SparkUI-58           12828.59   693.69\n\t306 SparkUI-59           12828.49   693.68\n\t306 SparkUI-60           12828.29   693.67\n\t306 SparkUI-61           12828.03   693.66\n\t306 SparkUI-62           12827.94   693.60\n\t306 SparkUI-63           12827.88   693.59\n\t306 Logging-Cleaner      12803.24   692.52\n\t143 checkPathsExist      11544.07   668.42\n\t 21 subquery-0            1248.48    83.33\n\t 12 subquery-1             886.46    62.49\n\t306 Thread-1               650.36    58.50\n\t  6 subquery-2             438.40    30.78\n\t  6 subquery-3             438.40    30.78\n\t  3 Thread-623             374.63    19.00\n\t  3 Thread-622             374.62    18.99\n\t  3 Thread-620             374.48    18.97\n\t  3 Thread-621             374.48    18.97\n\t  3 Thread-619             374.47    18.97\n\t  3 Thread-618             374.45    18.97\n\t  3 Thread-616             374.25    18.96\n\t  3 Thread-617             374.25    18.96\n\t  3 Thread-615             374.24    18.95\n\t  3 Thread-614             373.85    18.94\n\t  3 Thread-612             373.84    18.94\n\t  3 Thread-613             373.84    18.94\n\t  3 Thread-611             373.82    18.94\n\t  3 Thread-610             373.44    18.90\n\t  3 Thread-609             373.43    18.90\n\t  3 Thread-607             348.97    18.36\n\t  3 Thread-605             348.96    18.36\n\t  3 Thread-606             348.82    18.36\n\t  3 Thread-608             348.76    18.36\n\t  3 Thread-603             348.74    18.36\n\t  3 Thread-604             348.60    18.36\n\t  3 Thread-598             348.52    18.34\n\t  3 Thread-602             348.31    18.36\n\t  3 Thread-590             348.31    18.29\n\t  3 Thread-599             348.30    18.36\n\t  3 Thread-596             348.28    18.34\n\t  3 Thread-601             348.11    18.36\n\t  3 Thread-600             348.04    18.35\n\t  3 Thread-597             348.03    18.30\n\t  3 Thread-594             348.01    18.29\n\t  3 Thread-589             348.01    18.28\n\t  3 Thread-595             348.00    18.27\n\t  3 Thread-591             348.00    18.26\n\t  3 Thread-592             348.00    18.26\n\t  3 Thread-593             348.00    18.26\n\t  3 Thread-579             347.99    18.23\n\t  3 Thread-582             347.99    18.23\n\t  3 Thread-583             347.99    18.23\n\t  3 Thread-584             347.99    18.23\n\t  3 Thread-586             347.99    18.23\n\t  3 Thread-587             347.99    18.23\n\t  3 Thread-581             347.99    18.22\n\t  3 Thread-588             347.98    18.22\n\t  3 Thread-578             347.98    18.21\n\t  3 Thread-580             347.97    18.22\n\t  3 Thread-585             347.97    18.21\n\t  3 Thread-577             347.97    18.20\n\t  3 Thread-572             347.97    18.19\n\t  3 Thread-573             347.97    18.19\n\t  3 Thread-576             347.97    18.19\n\t  3 Thread-569             347.97    18.18\n\t  3 Thread-574             347.96    18.18\n\t  3 Thread-575             347.96    18.18\n\t  3 Thread-570             347.95    18.18\n\t  3 Thread-571             347.95    18.17\n\t  3 Thread-565             347.94    18.16\n\t  3 Thread-562             347.93    18.17\n\t  3 Thread-563             347.93    18.16\n\t  3 Thread-566             347.93    18.16\n\t  3 Thread-567             347.93    18.16\n\t  3 Thread-568             347.93    18.16\n\t  3 Thread-561             347.92    18.16\n\t  3 Thread-564             347.92    18.16\n\t  3 Thread-560             347.85    18.10\n\t  3 Thread-558             346.80    18.05\n\t  3 Thread-559             346.80    18.05\n\t  3 Thread-557             346.78    18.05\n\t  3 Thread-555             346.37    18.00\n\t  3 Thread-556             346.37    18.00\n\t  3 Thread-553             346.37    17.99\n\t  3 Thread-554             346.37    17.99\n\t  3 Thread-551             346.11    17.98\n\t  3 Thread-552             346.11    17.98\n\t  3 Thread-549             343.70    17.91\n\t  3 Thread-550             343.70    17.91\n\t  3 Thread-547             343.64    17.90\n\t  3 Thread-548             343.64    17.90\n\t  3 Thread-545             343.63    17.90\n\t  3 Thread-546             343.63    17.90\n\t  3 Thread-544             343.62    17.89\n\t  3 Thread-543             343.59    17.88\n\t  3 Thread-542             343.53    17.88\n\t  3 Thread-541             343.47    17.87\n\t  3 Thread-540             343.25    17.85\n\t  3 Thread-539             343.24    17.85\n\t  3 Thread-538             343.21    17.85\n\t  3 Thread-537             342.66    17.82\n\t  3 Thread-536             342.65    17.82\n\t  3 Thread-535             342.63    17.81\n\t  3 Thread-534             342.61    17.81\n\t  3 Thread-532             342.21    17.79\n\t  3 Thread-533             342.21    17.79\n\t  3 Thread-528             342.12    17.78\n\t  3 Thread-529             342.12    17.78\n\t  3 Thread-530             342.12    17.78\n\t  3 Thread-531             342.12    17.78\n\t  3 Thread-526             342.01    17.77\n\t  3 Thread-527             342.01    17.77\n\t  3 Thread-525             342.00    17.76\n\t  3 Thread-524             341.72    17.74\n\t  3 Thread-521             341.70    17.74\n\t  3 Thread-522             341.70    17.74\n\t  3 Thread-523             341.70    17.74\n\t  3 Thread-520             341.28    17.72\n\t  3 Thread-519             341.26    17.72\n\t  3 Thread-518             341.14    17.70\n\t  3 Thread-516             341.13    17.69\n\t  3 Thread-517             341.13    17.69\n\t  3 Thread-515             341.12    17.69\n\t  3 Thread-514             340.96    17.67\n\t  3 Thread-512             340.95    17.67\n\t  3 Thread-513             340.95    17.67\n\t  3 Thread-511             340.60    17.65\n\t  3 Thread-510             340.58    17.64\n\t  3 Thread-509             340.55    17.64\n\t  3 Thread-508             340.54    17.64\n\t  3 Thread-506             340.22    17.62\n\t  3 Thread-507             340.22    17.62\n\t  3 Thread-505             339.22    17.59\n\t  3 Thread-504             339.18    17.58\n\t  3 Thread-503             339.17    17.57\n\t  3 Thread-501             339.15    17.57\n\t  3 Thread-502             339.15    17.57\n\t  3 Thread-500             339.11    17.56\n\t  3 Thread-499             339.07    17.56\n\t  3 Thread-498             338.93    17.55\n\t  3 Thread-497             338.92    17.55\n\t  3 Thread-496             338.91    17.54\n\t  3 Thread-495             338.52    17.51\n\t  3 Thread-494             338.50    17.50\n\t  3 Thread-493             338.48    17.50\n\t  3 Thread-492             338.45    17.50\n\t  3 Thread-491             337.90    17.46\n\t  3 Thread-490             337.87    17.46\n\t  3 Thread-488             337.71    17.43\n\t  3 Thread-489             337.71    17.43\n\t  3 Thread-487             337.70    17.43\n\t  3 Thread-486             337.69    17.43\n\t  3 Thread-485             337.53    17.41\n\t  3 Thread-484             337.52    17.41\n\t  3 Thread-483             337.51    17.40\n\t  3 Thread-482             337.10    17.37\n\t  3 Thread-481             337.09    17.37\n\t  3 Thread-480             337.08    17.37\n\t  3 Thread-479             337.06    17.37\n\t  3 Thread-477             336.59    17.35\n\t  3 Thread-478             336.59    17.35\n\t  3 Thread-474             274.61    16.53\n\t  3 Thread-476             274.53    16.53\n\t  3 Thread-470             274.41    16.53\n\t  3 Thread-471             274.41    16.53\n\t  3 Thread-475             274.18    16.53\n\t  3 Thread-469             273.96    16.52\n\t  3 Thread-472             273.89    16.53\n\t  3 Thread-473             273.66    16.53\n\t  3 Thread-468             273.27    16.51\n\t  3 Thread-465             273.04    16.51\n\t  3 Thread-461             273.00    16.52\n\t  3 Thread-464             272.78    16.52\n\t  3 Thread-463             272.77    16.52\n\t  3 Thread-466             272.77    16.52\n\t  3 Thread-467             272.76    16.52\n\t  3 Thread-462             272.74    16.51\n\t  3 Thread-460             272.29    16.49\n\t  3 Thread-447             272.25    16.48\n\t  3 Thread-450             272.25    16.48\n\t  3 Thread-453             272.24    16.48\n\t  3 Thread-454             272.24    16.48\n\t  3 Thread-455             272.24    16.48\n\t  3 Thread-456             272.24    16.48\n\t  3 Thread-457             272.24    16.48\n\t  3 Thread-458             272.24    16.48\n\t  3 Thread-449             272.23    16.47\n\t  3 Thread-451             272.23    16.47\n\t  3 Thread-452             272.23    16.47\n\t  3 Thread-459             272.23    16.47\n\t  3 Thread-448             272.23    16.46\n\t  3 Thread-445             272.22    16.44\n\t  3 Thread-444             272.20    16.44\n\t  3 Thread-437             272.20    16.43\n\t  3 Thread-438             272.20    16.43\n\t  3 Thread-441             272.20    16.43\n\t  3 Thread-442             272.20    16.43\n\t  3 Thread-443             272.20    16.43\n\t  3 Thread-446             272.19    16.44\n\t  3 Thread-439             272.19    16.42\n\t  3 Thread-435             272.18    16.43\n\t  3 Thread-434             272.15    16.38\n\t  3 Thread-440             272.14    16.40\n\t  3 Thread-436             272.13    16.39\n\t  3 Thread-433             272.08    16.34\n\t  3 Thread-432             272.06    16.33\n\t  3 Thread-431             272.04    16.31\n\t  3 Thread-430             271.89    16.29\n\t  3 Thread-429             271.82    16.29\n\t  3 Thread-428             271.74    16.28\n\t  3 Thread-426             271.10    16.23\n\t  3 Thread-427             271.10    16.23\n\t  3 Thread-425             271.09    16.23\n\t  3 Thread-424             270.62    16.14\n\t  3 Thread-423             270.59    16.14\n\t  3 Thread-422             270.58    16.14\n\t  3 Thread-421             270.55    16.14\n\t  3 Thread-419             270.08    16.11\n\t  3 Thread-420             270.08    16.11\n\t  3 Thread-412             264.41    15.94\n\t  3 Thread-416             264.40    15.94\n\t  3 Thread-417             264.40    15.94\n\t  3 Thread-418             264.40    15.94\n\t  3 Thread-414             264.39    15.94\n\t  3 Thread-413             264.36    15.94\n\t  3 Thread-415             264.35    15.94\n\t  3 Thread-406             264.30    15.92\n\t  3 Thread-408             264.30    15.92\n\t  3 Thread-409             264.30    15.92\n\t  3 Thread-410             264.30    15.92\n\t  3 Thread-407             264.30    15.90\n\t  3 Thread-411             264.29    15.92\n\t  3 Thread-405             264.29    15.89\n\t  3 Thread-402             264.25    15.87\n\t  3 Thread-404             264.25    15.87\n\t  3 Thread-398             264.25    15.86\n\t  3 Thread-399             264.23    15.87\n\t  3 Thread-400             264.23    15.86\n\t  3 Thread-401             264.23    15.86\n\t  3 Thread-403             264.22    15.86\n\t  3 Thread-397             264.21    15.87\n\t  3 Thread-396             264.08    15.82\n\t  3 Thread-395             264.00    15.81\n\t  3 Thread-394             263.97    15.81\n\t  3 Thread-393             263.41    15.79\n\t  3 Thread-392             263.38    15.79\n\t  3 Thread-391             263.35    15.79\n\t  3 Thread-390             262.72    15.76\n\t  3 Thread-389             262.67    15.76\n\t  3 Thread-388             262.59    15.76\n\t  3 Thread-387             262.58    15.76\n\t  3 Thread-386             261.40    15.73\n\t  3 Thread-385             261.37    15.71\n\t  3 Thread-383             261.24    15.71\n\t  3 Thread-384             261.24    15.71\n\t  3 Thread-382             261.21    15.71\n\t  3 Thread-381             261.20    15.71\n\t  3 Thread-380             260.91    15.70\n\t  3 Thread-379             260.90    15.70\n\t  3 Thread-378             260.87    15.69\n\t  3 Thread-377             260.07    15.67\n\t  3 Thread-376             260.06    15.67\n\t  3 Thread-375             260.03    15.67\n\t  3 Thread-374             260.00    15.67\n\t  3 Thread-373             259.21    15.63\n\t  3 Thread-372             259.19    15.63\n\t  3 Thread-371             259.01    15.62\n\t  3 Thread-370             259.00    15.62\n\t  3 Thread-369             258.96    15.62\n\t  3 Thread-368             258.93    15.62\n\t  3 Thread-367             258.62    15.60\n\t  3 Thread-365             258.60    15.60\n\t  3 Thread-366             258.60    15.60\n\t  3 Thread-364             257.99    15.58\n\t  3 Thread-363             257.97    15.58\n\t  3 Thread-362             257.95    15.57\n\t  3 Thread-361             257.91    15.57\n\t  3 Thread-360             257.13    15.55\n\t  3 Thread-359             257.13    15.54\n\t  3 Thread-358             256.95    15.52\n\t  3 Thread-357             256.94    15.52\n\t  3 Thread-355             256.93    15.52\n\t  3 Thread-356             256.93    15.52\n\t  3 Thread-354             256.78    15.52\n\t  3 Thread-353             256.77    15.52\n\t  3 Thread-352             256.74    15.52\n\t  3 Thread-351             255.80    15.49\n\t  3 Thread-350             255.76    15.49\n\t  3 Thread-349             255.73    15.49\n\t  3 Thread-348             255.69    15.48\n\t  3 Thread-347             255.07    15.45\n\t  3 Thread-346             255.05    15.45\n\t  3 Thread-345             254.02    15.40\n\t  3 Thread-344             253.95    15.40\n\t  3 Thread-343             253.91    15.40\n\t  3 Thread-342             253.90    15.40\n\t  3 Thread-341             253.87    15.39\n\t  3 Thread-340             253.82    15.39\n\t  3 Thread-339             253.78    15.39\n\t  3 Thread-338             253.43    15.37\n\t  3 Thread-337             253.39    15.37\n\t  3 Thread-336             253.37    15.37\n\t  3 Thread-335             252.46    15.35\n\t  3 Thread-334             252.43    15.35\n\t  3 Thread-333             252.40    15.33\n\t  3 Thread-332             252.39    15.33\n\t  3 Thread-331             251.78    15.31\n\t  3 Thread-330             251.77    15.31\n\t  3 Thread-327             195.57    14.03\n\t  3 Thread-325             195.29    14.02\n\t  3 Thread-328             195.29    14.02\n\t  3 Thread-329             195.25    14.02\n\t  3 Thread-324             195.24    14.03\n\t  3 Thread-323             195.22    14.03\n\t  3 Thread-321             195.22    14.01\n\t  3 Thread-319             195.19    14.01\n\t  3 Thread-326             195.19    14.01\n\t  3 Thread-322             195.12    14.02\n\t  3 Thread-320             195.07    13.99\n\t  3 Thread-314             195.07    13.98\n\t  3 Thread-317             195.04    13.99\n\t  3 Thread-316             195.02    13.96\n\t  3 Thread-318             195.00    13.99\n\t  3 Thread-310             194.97    13.96\n\t  3 Thread-315             194.97    13.96\n\t  3 Thread-313             194.97    13.95\n\t  3 Thread-309             194.95    13.96\n\t  3 Thread-307             194.94    13.96\n\t  3 Thread-306             194.94    13.95\n\t  3 Thread-311             194.94    13.95\n\t  3 Thread-312             194.93    13.95\n\t  3 Thread-308             194.93    13.94\n\t  3 Thread-300             194.91    13.91\n\t  3 Thread-305             194.90    13.92\n\t  3 Thread-301             194.89    13.92\n\t  3 Thread-302             194.87    13.91\n\t  3 Thread-303             194.87    13.91\n\t  3 Thread-304             194.87    13.91\n\t  3 Thread-299             194.86    13.89\n\t  3 Thread-297             194.83    13.89\n\t  3 Thread-298             194.83    13.89\n\t  3 Thread-294             194.82    13.89\n\t  3 Thread-296             194.82    13.89\n\t  3 Thread-285             194.81    13.88\n\t  3 Thread-289             194.81    13.88\n\t  3 Thread-290             194.81    13.88\n\t  3 Thread-291             194.81    13.88\n\t  3 Thread-293             194.81    13.88\n\t  3 Thread-295             194.81    13.88\n\t  3 Thread-292             194.80    13.88\n\t  3 Thread-287             194.80    13.87\n\t  3 Thread-286             194.78    13.86\n\t  3 Thread-284             194.77    13.87\n\t  3 Thread-288             194.77    13.86\n\t  3 Thread-283             194.76    13.86\n\t  3 Thread-282             194.51    13.78\n\t  3 Thread-281             194.38    13.76\n\t  3 Thread-280             193.22    13.66\n\t  3 Thread-279             193.18    13.66\n\t  3 Thread-278             193.14    13.65\n\t  3 Thread-277             191.79    13.60\n\t  3 Thread-276             191.74    13.59\n\t  3 Thread-275             191.67    13.59\n\t  3 Thread-274             191.63    13.59\n\t  3 Thread-273             190.86    13.56\n\t  3 Thread-272             190.84    13.55\n\t  3 Thread-268             190.73    13.54\n\t  3 Thread-269             190.73    13.54\n\t  3 Thread-270             190.73    13.54\n\t  3 Thread-271             190.73    13.54\n\t  3 Thread-265             190.57    13.53\n\t  3 Thread-266             190.57    13.53\n\t  3 Thread-267             190.57    13.53\n\t  3 Thread-264             190.00    13.49\n\t  3 Thread-263             189.99    13.49\n\t  3 Thread-262             189.98    13.49\n\t  3 Thread-261             189.97    13.49\n\t  3 Thread-260             189.36    13.46\n\t  3 Thread-259             189.34    13.44\n\t  3 Thread-255             189.16    13.43\n\t  3 Thread-256             189.16    13.43\n\t  3 Thread-257             189.16    13.43\n\t  3 Thread-258             189.16    13.43\n\t  3 Thread-254             188.89    13.42\n\t  3 Thread-253             188.88    13.41\n\t  3 Thread-252             188.84    13.41\n\t  3 Thread-250             188.25    13.38\n\t  3 Thread-251             188.25    13.38\n\t  3 Thread-249             188.24    13.38\n\t  3 Thread-248             188.23    13.38\n\t  3 Thread-246             187.57    13.35\n\t  3 Thread-247             187.57    13.35\n\t  3 Thread-244             185.03    12.94\n\t  3 Thread-245             185.03    12.94\n\t  3 Thread-243             184.94    12.93\n\t  3 Thread-242             184.93    12.93\n\t  3 Thread-240             184.85    12.93\n\t  3 Thread-241             184.85    12.93\n\t  3 Thread-239             184.65    12.91\n\t  3 Thread-238             184.58    12.91\n\t  3 Thread-237             184.52    12.91\n\t  3 Thread-236             184.49    12.90\n\t  3 Thread-235             184.11    12.85\n\t  3 Thread-234             184.09    12.85\n\t  3 Thread-233             184.05    12.84\n\t  3 Thread-232             182.65    12.75\n\t  3 Thread-231             182.63    12.74\n\t  3 Thread-230             182.59    12.74\n\t  3 Thread-229             182.58    12.74\n\t  3 Thread-228             181.73    12.71\n\t  3 Thread-227             181.71    12.71\n\t  3 Thread-224             178.50    12.30\n\t  3 Thread-225             178.50    12.30\n\t  3 Thread-226             178.50    12.30\n\t  3 Thread-223             178.44    12.30\n\t  3 Thread-221             178.43    12.29\n\t  3 Thread-222             178.43    12.29\n\t  3 Thread-220             178.38    12.29\n\t  3 Thread-218             178.37    12.28\n\t  3 Thread-219             178.37    12.28\n\t  3 Thread-217             178.25    12.27\n\t  3 Thread-216             178.16    12.27\n\t  3 Thread-215             178.06    12.27\n\t  3 Thread-214             177.99    12.26\n\t  3 Thread-212             177.46    12.21\n\t  3 Thread-213             177.46    12.21\n\t  3 Thread-211             177.44    12.20\n\t  3 Thread-210             176.70    12.18\n\t  3 Thread-209             176.68    12.17\n\t  3 Thread-208             176.66    12.17\n\t  3 Thread-207             176.66    12.16\n\t  3 Thread-206             175.93    12.12\n\t  3 Thread-205             175.91    12.12\n\t  3 Thread-204             158.68    10.67\n\t  3 Thread-203             158.61    10.64\n\t  3 Thread-196             158.54    10.64\n\t  3 Thread-197             158.47    10.63\n\t  3 Thread-199             158.42    10.65\n\t  3 Thread-193             158.40    10.63\n\t  3 Thread-195             158.07    10.62\n\t  3 Thread-194             158.06    10.62\n\t  3 Thread-202             158.04    10.63\n\t  3 Thread-201             157.97    10.64\n\t  3 Thread-200             157.96    10.64\n\t  3 Thread-190             157.96    10.62\n\t  3 Thread-191             157.71    10.62\n\t  3 Thread-192             157.71    10.62\n\t  3 Thread-189             157.68    10.60\n\t  3 Thread-188             157.67    10.60\n\t  3 Thread-198             157.56    10.63\n\t  3 Thread-187             157.51    10.60\n\t  3 Thread-185             157.48    10.60\n\t  3 Thread-183             157.40    10.58\n\t  3 Thread-186             157.39    10.60\n\t  3 Thread-182             157.38    10.58\n\t  3 Thread-181             157.36    10.58\n\t  3 Thread-184             157.34    10.59\n\t  3 Thread-177             157.24    10.55\n\t  3 Thread-178             157.24    10.55\n\t  3 Thread-179             157.24    10.55\n\t  3 Thread-175             157.23    10.55\n\t  3 Thread-176             157.23    10.54\n\t  3 Thread-180             157.22    10.55\n\t  3 Thread-172             157.20    10.54\n\t  3 Thread-173             157.20    10.54\n\t  3 Thread-162             157.18    10.53\n\t  3 Thread-174             157.17    10.53\n\t  3 Thread-160             157.16    10.53\n\t  3 Thread-167             157.15    10.53\n\t  3 Thread-168             157.15    10.53\n\t  3 Thread-169             157.15    10.53\n\t  3 Thread-170             157.15    10.53\n\t  3 Thread-171             157.15    10.53\n\t  3 Thread-166             157.14    10.50\n\t  3 Thread-161             157.12    10.49\n\t  3 Thread-163             157.11    10.52\n\t  3 Thread-165             157.11    10.49\n\t  3 Thread-164             157.07    10.48\n\t  3 Thread-159             156.74    10.43\n\t  3 Thread-158             156.58    10.42\n\t  3 Thread-157             156.45    10.42\n\t  3 Thread-156             156.33    10.42\n\t  3 Thread-155             154.78    10.28\n\t  3 Thread-154             154.74    10.28\n\t  3 Thread-153             154.71    10.28\n\t  3 Thread-152             153.07    10.24\n\t  3 Thread-151             153.03    10.23\n\t  3 Thread-150             152.99    10.22\n\t  3 Thread-149             152.97    10.22\n\t  3 Thread-148             151.95    10.16\n\t  3 Thread-147             151.94    10.16\n\t  3 Thread-146             149.91    10.03\n\t  3 Thread-145             149.85    10.03\n\t  3 Thread-144             149.77    10.02\n\t  3 Thread-143             149.59    10.00\n\t  3 Thread-142             149.50    10.00\n\t  3 Thread-141             149.42    10.00\n\t  3 Thread-140             149.32     9.99\n\t  3 Thread-139             148.88     9.94\n\t  3 Thread-138             148.87     9.94\n\t  3 Thread-137             148.86     9.93\n\t  3 Thread-136             147.57     9.86\n\t  3 Thread-135             147.54     9.85\n\t  3 Thread-134             147.52     9.85\n\t  3 Thread-133             147.51     9.85\n\t  3 Thread-132             146.12     9.79\n\t  3 Thread-131             146.11     9.79\n\t  3 subquery-4             112.56     5.18\n\t  3 Thread-130              95.85     5.16\n\t  3 Thread-127              95.59     5.16\n\t  3 Thread-126              95.17     5.15\n\t  3 Thread-129              95.01     5.15\n\t  3 Thread-128              95.00     5.15\n\t  3 Thread-122              94.11     5.15\n\t  3 Thread-124              94.07     5.14\n\t  3 Thread-123              93.99     5.15\n\t  3 Thread-117              93.82     5.14\n\t  3 Thread-125              93.71     5.14\n\t  3 Thread-111              93.48     5.11\n\t  3 Thread-119              93.33     5.14\n\t  3 Thread-121              93.33     5.14\n\t  3 Thread-118              93.00     5.12\n\t  3 Thread-116              92.94     5.12\n\t  3 Thread-112              92.90     5.12\n\t  3 Thread-113              92.81     5.10\n\t  3 Thread-115              92.69     5.13\n\t  3 Thread-120              92.45     5.11\n\t  3 Thread-114              92.30     5.12\n\t  3 Thread-108              91.31     5.09\n\t  3 Thread-109              91.29     5.09\n\t  3 Thread-96               91.28     5.05\n\t  3 Thread-107              90.94     5.08\n\t  3 Thread-105              90.79     5.07\n\t  3 Thread-110              90.78     5.04\n\t  3 Thread-106              90.77     5.07\n\t  3 Thread-104              90.73     5.05\n\t  3 Thread-102              90.72     5.05\n\t  3 Thread-103              90.71     5.07\n\t  3 Thread-100              90.71     5.05\n\t  3 Thread-98               90.61     5.04\n\t  3 Thread-93               90.60     5.02\n\t  3 Thread-101              90.58     5.01\n\t  3 Thread-91               90.56     5.03\n\t  3 Thread-90               90.50     5.04\n\t  3 Thread-99               90.50     5.01\n\t  3 Thread-89               90.50     5.00\n\t  3 Thread-97               90.49     5.01\n\t  3 Thread-92               90.40     5.01\n\t  3 Thread-94               90.40     5.01\n\t  3 Thread-95               90.40     5.01\n\t  3 Thread-88               90.39     4.96\n\t  3 Thread-87               90.18     4.96\n\t  3 Thread-86               90.11     4.94\n\t  3 Thread-85               88.94     4.84\n\t  3 Thread-84               88.84     4.82\n\t  3 Thread-83               88.70     4.81\n\t  3 Thread-82               88.54     4.81\n\t  3 Thread-80               87.22     4.76\n\t  3 Thread-81               87.22     4.76\n\t  3 Thread-79               87.21     4.76\n\t  3 Thread-78               86.08     4.67\n\t  3 Thread-77               86.07     4.67\n\t  3 Thread-76               86.03     4.67\n\t  3 Thread-75               86.02     4.66\n\t  3 Thread-74               84.50     4.62\n\t  3 Thread-73               84.48     4.62\n\t  3 Thread-72               73.22     4.15\n\t  3 Thread-70               73.20     4.14\n\t  3 Thread-71               73.20     4.14\n\t  3 Thread-68               73.19     4.14\n\t  3 Thread-69               73.18     4.14\n\t  3 Thread-67               73.08     4.14\n\t  3 Thread-66               73.04     4.14\n\t  3 Thread-65               73.03     4.14\n\t  3 Thread-64               73.02     4.14\n\t  3 Thread-63               73.00     4.14\n\t  3 Thread-61               72.87     4.12\n\t  3 Thread-58               72.86     4.12\n\t  3 Thread-59               72.86     4.12\n\t  3 Thread-60               72.84     4.10\n\t  3 Thread-62               72.84     4.08\n\t  3 Thread-57               71.79     3.98\n\t  3 Thread-56               71.67     3.98\n\t  3 Thread-55               71.56     3.97\n\t  3 Thread-54               71.40     3.96\n\t  3 Thread-53               70.18     3.92\n\t  3 Thread-52               70.17     3.92\n\t  3 Thread-51               70.16     3.92\n\t  3 Thread-50               68.31     3.86\n\t  3 Thread-49               68.26     3.86\n\t  3 Thread-48               68.24     3.85\n\t  3 Thread-47               68.22     3.84\n\t  3 Thread-46               67.12     3.76\n\t  3 Thread-45               67.10     3.76\n\t  3 Thread-44               62.93     3.68\n\t  3 Thread-43               62.89     3.67\n\t  3 Thread-42               62.88     3.67\n\t  3 Thread-41               62.82     3.66\n\t  3 Thread-40               61.92     3.64\n\t  3 Thread-39               61.90     3.64\n\t  3 Thread-38               61.88     3.63\n\t  3 Thread-37               60.88     3.57\n\t  3 Thread-36               60.86     3.57\n\t  3 Thread-35               60.84     3.56\n\t  3 Thread-34               60.83     3.56\n\t  3 Thread-33               58.93     3.44\n\t  3 Thread-32               58.89     3.44\n\t  3 Thread-31               54.89     3.17\n\t  3 Thread-30               54.87     3.17\n\t  3 Thread-29               54.86     3.17\n\t  3 Thread-28               54.84     3.17\n\t  3 Thread-26               51.84     2.92\n\t  3 Thread-27               51.84     2.92\n\t  3 Thread-25               51.84     2.91\n\t  3 Thread-24               41.55     2.49\n\t  3 Thread-23               41.51     2.48\n\t  3 Thread-22               41.43     2.46\n\t  3 Thread-21               41.41     2.45\n\t  3 Thread-20               40.89     2.40\n\t4517 C2 CompilerThre         39.58 123990.25\n\t347 process reaper          37.11 18037.48\n\t 68 clinfo                  15.87     7.32\n\t2002 C1 CompilerThre         13.83 52340.27\n\t62240 tpcdsspark.sh            6.22    28.59\n\t  1 dsdgen                   5.81     1.06\n\t613 G1 Conc#0                2.54 12932.25\n\t613 GC Thread#0              2.54 12932.25\n\t613 Reference Handl          2.54 12932.22\n\t613 Service Thread           2.54 12932.19\n\t613 Sweeper thread           2.54 12932.18\n\t613 Signal Dispatch          2.54 12932.16\n\t613 VM Thread                2.54 12932.15\n\t613 G1 Refine#0              2.54 12925.78\n\t306 GC Thread#1              2.54 12904.74\n\t306 GC Thread#2              2.54 12904.74\n\t306 GC Thread#3              2.54 12904.74\n\t306 GC Thread#4              2.54 12904.73\n\t306 GC Thread#5              2.54 12904.73\n\t306 GC Thread#6              2.54 12904.73\n\t306 GC Thread#7              2.54 12904.73\n\t306 GC Thread#8              2.54 12904.73\n\t306 GC Thread#9              2.54 12904.73\n\t306 G1 Conc#1                2.54 12904.72\n\t306 G1 Conc#2                2.54 12904.71\n\t306 GC Thread#10             2.54 12904.61\n\t306 GC Thread#11             2.54 12904.61\n\t212 GC Thread#12             2.54  9871.48\n\t227 G1 Refine#1              2.54  9609.83\n\t147 G1 Refine#2              1.78  6485.31\n\t 64 G1 Refine#3              1.78  3309.96\n\t 38 G1 Refine#4              1.78  2110.54\n\t 24 G1 Refine#5              1.78  1456.04\n\t 12 G1 Refine#6              1.78   797.52\n\t  7 redirect stderr          1.45   641.36\n\t 38 vulkaninfo               1.34     0.95\n\t20905 ps                       1.25    52.08\n\t  6 G1 Refine#7              0.79   361.57\n\t  1 G1 Refine#8              0.79   125.86\n\t4808 Executor task l          0.48    40.64\n\t  6 php                      0.19     0.43\n\t  4 vulkani:disk$0           0.14     0.10\n\t  6 glxinfo:gdrv0            0.09     0.06\n\t  6 glxinfo:gl0              0.09     0.06\n\t  2 llvmpipe-0               0.07     0.05\n\t  2 llvmpipe-1               0.07     0.05\n\t  2 llvmpipe-10              0.07     0.05\n\t  2 llvmpipe-11              0.07     0.05\n\t  2 llvmpipe-12              0.07     0.05\n\t  2 llvmpipe-13              0.07     0.05\n\t  2 llvmpipe-14              0.07     0.05\n\t  2 llvmpipe-15              0.07     0.05\n\t  2 llvmpipe-2               0.07     0.05\n\t  2 llvmpipe-3               0.07     0.05\n\t  2 llvmpipe-4               0.07     0.05\n\t  2 llvmpipe-5               0.07     0.05\n\t  2 llvmpipe-6               0.07     0.05\n\t  2 llvmpipe-7               0.07     0.05\n\t  2 llvmpipe-8               0.07     0.05\n\t  2 llvmpipe-9               0.07     0.05\n\t  6 clang                    0.06     0.06\n\t  2 glxinfo                  0.06     0.02\n\t  2 glxinfo:cs0              0.06     0.02\n\t  2 glxinfo:disk$0           0.06     0.02\n\t  2 glxinfo:sh0              0.05     0.02\n\t  2 glxinfo:shlo0            0.05     0.02\n\t613 G1 Main Marker           0.03     2.54\n\t613 G1 Young RemSet          0.03     2.54\n\t613 VM Periodic Tas          0.03     2.54\n\t306 Spark Context C          0.03     2.54\n\t  3 rocminfo                 0.03     0.00\n\t2427 runqueries.sh            0.02     0.36\n\t200 genquery.sh              0.01     0.10\n\t920 bash                     0.01     0.00\n\t  7 read stdout for          0.00     1.45\n\t1361 rm                       0.00     1.11\n\t  1 lspci                    0.00     0.02\n\t  7 getconf                  0.00     0.01\n\t21026 wc                       0.00     0.00\n\t20599 sleep                    0.00     0.00\n\t20169 find                     0.00     0.00\n\t1566 chmod                    0.00     0.00\n\t1232 cat                      0.00     0.00\n\t1160 grep                     0.00     0.00\n\t618 cut                      0.00     0.00\n\t618 tr                       0.00     0.00\n\t430 expr                     0.00     0.00\n\t231 ls                       0.00     0.00\n\t226 mv                       0.00     0.00\n\t198 dsqgen                   0.00     0.00\n\t 87 sh                       0.00     0.00\n\t 47 sed                      0.00     0.00\n\t 24 basename                 0.00     0.00\n\t 13 dirname                  0.00     0.00\n\t 13 gcc                      0.00     0.00\n\t 11 gsettings                0.00     0.00\n\t  9 spark-tpcds              0.00     0.00\n\t  8 stat                     0.00     0.00\n\t  8 systemd-detect-          0.00     0.00\n\t  6 id                       0.00     0.00\n\t  6 llvm-link                0.00     0.00\n\t  6 touch                    0.00     0.00\n\t  5 phoronix-test-s          0.00     0.00\n\t  4 cp                       0.00     0.00\n\t  4 gmain                    0.00     0.00\n\t  3 bc                       0.00     0.00\n\t  3 cmp                      0.00     0.00\n\t  3 mkdir                    0.00     0.00\n\t  3 seq                      0.00     0.00\n\t  2 cc                       0.00     0.00\n\t  2 lscpu                    0.00     0.00\n\t  2 uname                    0.00     0.00\n\t  2 which                    0.00     0.00\n\t  2 xset                     0.00     0.00\n\t  1 date                     0.00     0.00\n\t  1 dconf worker             0.00     0.00\n\t  1 dmesg                    0.00     0.00\n\t  1 dmidecode                0.00     0.00\n\t  1 ifconfig                 0.00     0.00\n\t  1 ip                       0.00     0.00\n\t  1 lsmod                    0.00     0.00\n\t  1 mktemp                   0.00     0.00\n\t  1 python                   0.00     0.00\n\t  1 python3                  0.00     0.00\n\t  1 qdbus                    0.00     0.00\n\t  1 readlink                 0.00     0.00\n\t  1 realpath                 0.00     0.00\n\t  1 sort                     0.00     0.00\n\t  1 stty                     0.00     0.00\n\t  1 systemctl                0.00     0.00\n\t  1 template.sh              0.00     0.00\n\t  1 xrandr                   0.00     0.00\n34 processes running\n408 maximum processes\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>A test of Apache Spark data analytics engine that uses the TPC DS data set. There are a variety of different scale factors and I picked the smallest (1GB) one. Looks like many independent processes starting up and competing with <span class=\"excerpt-dots\">&hellip;<\/span> <a class=\"more-link\" href=\"https:\/\/mvermeulen.org\/perf\/workloads\/phoronix\/spark-tpcds\/\"><span class=\"more-msg\">Continue reading &rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":58,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1655","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/pages\/1655","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/comments?post=1655"}],"version-history":[{"count":3,"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/pages\/1655\/revisions"}],"predecessor-version":[{"id":1674,"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/pages\/1655\/revisions\/1674"}],"up":[{"embeddable":true,"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/pages\/58"}],"wp:attachment":[{"href":"https:\/\/mvermeulen.org\/perf\/wp-json\/wp\/v2\/media?parent=1655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}