A single threaded test of the numpy library
Topdown shows more frontend activity and not much backend. Also looks like the test has a few phases.
AMD metrics show a moderate amount of floating point and some L2 access.
elapsed 361.124
on_cpu 0.060 # 0.96 / 16 cores
utime 323.026
stime 23.631
nvcsw 2254 # 52.37%
nivcsw 2050 # 47.63%
inblock 0 # 0.00/sec
onblock 14272 # 39.52/sec
cpu-clock 346708703424 # 346.709 seconds
task-clock 346714252381 # 346.714 seconds
page faults 13793915 # 39784.678/sec
context switches 5835 # 16.829/sec
cpu migrations 342 # 0.986/sec
major page faults 2 # 0.006/sec
minor page faults 13793913 # 39784.673/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 753903919180 # 192.310 branches per 1000 inst
branch misses 3223543724 # 0.43% branch miss
conditional 548538917674 # 139.924 conditional branches per 1000 inst
indirect 50159713959 # 12.795 indirect branches per 1000 inst
cpu-cycles 1631214371880 # 0.28 GHz
instructions 3910901560480 # 2.40 IPC
slots 3270777827046 #
retiring 1318275595981 # 40.3% (40.3%)
-- ucode 4213617091 # 0.1%
-- fastpath 1314061978890 # 40.2%
frontend 1316680239451 # 40.3% (40.3%)
-- latency 692593480368 # 21.2%
-- bandwidth 624086759083 # 19.1%
backend 574041611376 # 17.6% (17.6%)
-- cpu 115146122764 # 3.5%
-- memory 458895488612 # 14.0%
speculation 61567308765 # 1.9% ( 1.9%)
-- branch mispredict 50900498632 # 1.6%
-- pipeline restart 10666810133 # 0.3%
smt-contention 212699336 # 0.0% ( 0.0%)
cpu-cycles 1614316899243 # 0.28 GHz
instructions 3910468849113 # 2.42 IPC
instructions 1305538175558 # 81.788 l2 access per 1000 inst
l2 hit from l1 84691082021 # 8.38% l2 miss
l2 miss from l1 1604500894 #
l2 hit from l2 pf 14740210877 #
l3 hit from l2 pf 5624516569 #
l3 miss from l2 pf 1721642011 #
instructions 1303230480870 # 62.065 float per 1000 inst
float 512 104 # 0.000 AVX-512 per 1000 inst
float 256 118848212 # 0.091 AVX-256 per 1000 inst
float 128 80766728853 # 61.974 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 338 # 0.000 scalar per 1000 inst
Intel metrics also show many branches
elapsed 396.775
on_cpu 0.060 # 0.97 / 16 cores
utime 361.739
stime 21.166
nvcsw 2203 # 51.17%
nivcsw 2102 # 48.83%
inblock 1344 # 3.39/sec
onblock 2976 # 7.50/sec
cpu-clock 382925715780 # 382.926 seconds
task-clock 382930356389 # 382.930 seconds
page faults 14274949 # 37278.186/sec
context switches 6020 # 15.721/sec
cpu migrations 430 # 1.123/sec
major page faults 6 # 0.016/sec
minor page faults 14274943 # 37278.170/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 759460727990 # 189.477 branches per 1000 inst
branch misses 1094303570 # 0.14% branch miss
conditional 759460743158 # 189.477 conditional branches per 1000 inst
indirect 50988694116 # 12.721 indirect branches per 1000 inst
slots 8587423249148 #
retiring 3904258871034 # 45.5% (45.5%)
-- ucode 352967547446 # 4.1%
-- fastpath 3551291323588 # 41.4%
frontend 2737042962078 # 31.9% (31.9%)
-- latency 611472582951 # 7.1%
-- bandwidth 2125570379127 # 24.8%
backend 1721573209956 # 20.0% (20.0%)
-- cpu 506032738355 # 5.9%
-- memory 1215540471601 # 14.2%
speculation 235846863912 # 2.7% ( 2.7%)
-- branch mispredict 160947414957 # 1.9%
-- pipeline restart 74899448955 # 0.9%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 1433601238554 # 0.23 GHz
instructions 4003580216381 # 2.79 IPC
l2 access 270788452542 # 67.664 l2 access per 1000 inst
l2 miss 34377572620 # 12.70% l2 miss
Process overview shows this is python driven workload
448 processes
94 python3 322.40 21.76
68 clinfo 15.91 6.33
38 vulkaninfo 1.13 1.14
4 vulkani:disk$0 0.12 0.12
6 glxinfo:gdrv0 0.12 0.09
6 clang 0.07 0.05
6 php 0.06 0.07
2 llvmpipe-0 0.06 0.06
2 llvmpipe-1 0.06 0.06
2 llvmpipe-10 0.06 0.06
2 llvmpipe-11 0.06 0.06
2 llvmpipe-12 0.06 0.06
2 llvmpipe-13 0.06 0.06
2 llvmpipe-14 0.06 0.06
2 llvmpipe-15 0.06 0.06
2 llvmpipe-2 0.06 0.06
2 llvmpipe-3 0.06 0.06
2 llvmpipe-4 0.06 0.06
2 llvmpipe-5 0.06 0.06
2 llvmpipe-6 0.06 0.06
2 llvmpipe-7 0.06 0.06
2 llvmpipe-8 0.06 0.06
2 llvmpipe-9 0.06 0.06
2 glxinfo 0.06 0.04
2 glxinfo:cs0 0.06 0.04
2 glxinfo:disk$0 0.06 0.04
2 glxinfo:sh0 0.06 0.03
2 glxinfo:shlo0 0.06 0.03
3 run.sh 0.03 0.03
3 rocminfo 0.00 0.03
1 lspci 0.00 0.02
1 ps 0.00 0.01
83 sh 0.00 0.00
12 gcc 0.00 0.00
11 gsettings 0.00 0.00
8 stat 0.00 0.00
8 systemd-detect- 0.00 0.00
6 llvm-link 0.00 0.00
5 phoronix-test-s 0.00 0.00
4 dirname 0.00 0.00
4 gmain 0.00 0.00
3 cat 0.00 0.00
3 numpy 0.00 0.00
2 lscpu 0.00 0.00
2 uname 0.00 0.00
2 which 0.00 0.00
2 xset 0.00 0.00
1 cc 0.00 0.00
1 date 0.00 0.00
1 dconf worker 0.00 0.00
1 dmesg 0.00 0.00
1 dmidecode 0.00 0.00
1 grep 0.00 0.00
1 ifconfig 0.00 0.00
1 ip 0.00 0.00
1 lsmod 0.00 0.00
1 mktemp 0.00 0.00
1 python 0.00 0.00
1 qdbus 0.00 0.00
1 readlink 0.00 0.00
1 realpath 0.00 0.00
1 sed 0.00 0.00
1 sort 0.00 0.00
1 stty 0.00 0.00
1 systemctl 0.00 0.00
1 template.sh 0.00 0.00
1 wc 0.00 0.00
1 xrandr 0.00 0.00
0 processes running
47 maximum processes
Looks like a set of small python tests run in sequence.
2560738) numpy cpu=9 start=5.76 finish=119.95
2560739) run.sh cpu=2 start=5.76 finish=119.94
2560740) dirname cpu=12 start=5.79 finish=5.79
2560741) python3 cpu=3 start=5.79 finish=6.55
2560742) python3 cpu=5 start=6.55 finish=7.90
2560743) python3 cpu=11 start=7.90 finish=8.75
2560744) python3 cpu=11 start=8.75 finish=11.64
2560745) python3 cpu=4 start=11.65 finish=11.80
2560746) python3 cpu=6 start=11.80 finish=15.29
2560748) python3 cpu=3 start=15.30 finish=15.64
2560749) python3 cpu=4 start=15.65 finish=16.14
2560750) python3 cpu=3 start=16.14 finish=16.39
2560751) python3 cpu=4 start=16.39 finish=16.66
2560752) python3 cpu=3 start=16.66 finish=18.28
2560753) python3 cpu=4 start=18.28 finish=25.17
2560754) python3 cpu=5 start=25.17 finish=30.43
2560755) python3 cpu=3 start=30.43 finish=32.69
2560756) python3 cpu=4 start=32.69 finish=40.84
2560757) python3 cpu=5 start=40.85 finish=43.38
2560758) python3 cpu=11 start=43.38 finish=44.33
2560759) python3 cpu=4 start=44.33 finish=45.02
2560760) python3 cpu=5 start=45.02 finish=46.48
2560761) python3 cpu=3 start=46.49 finish=47.16
2560762) python3 cpu=4 start=47.16 finish=49.62
2560763) python3 cpu=11 start=49.62 finish=49.70
2560764) python3 cpu=4 start=49.70 finish=50.16
2560765) python3 cpu=11 start=50.16 finish=50.22
2560766) python3 cpu=4 start=50.22 finish=50.44
2560767) python3 cpu=11 start=50.45 finish=56.22
2560768) python3 cpu=4 start=56.22 finish=116.88
2560769) python3 cpu=11 start=116.89 finish=117.22
2560770) python3 cpu=4 start=117.22 finish=118.51
2560771) python3 cpu=3 start=118.52 finish=119.94
2560772) cat cpu=2 start=119.94 finish=119.94
2560773) python3 cpu=3 start=119.94 finish=119.95