Testing the xz tool for compressing and decompressing a Linux ISO image. This is the compression where Intel scores best relative to AMD (1.13x slower). Very much a backend bound task. Interesting that none tests of different compression tools use the same metrics and workload so not easy to compare between tools.
AMD metrics show a memory-bound process with low IPC and not much branch misprediction.
elapsed 100.692
on_cpu 0.679 # 10.87 / 16 cores
utime 1082.313
stime 11.855
nvcsw 5507 # 23.18%
nivcsw 18252 # 76.82%
inblock 32 # 0.32/sec
onblock 4784560 # 47516.65/sec
cpu-clock 1094318856774 # 1094.319 seconds
task-clock 1094336999873 # 1094.337 seconds
page faults 4003695 # 3658.558/sec
context switches 24024 # 21.953/sec
cpu migrations 397 # 0.363/sec
major page faults 0 # 0.000/sec
minor page faults 4003695 # 3658.558/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 305826469983 # 140.424 branches per 1000 inst
branch misses 15442205577 # 5.05% branch miss
conditional 207603757938 # 95.324 conditional branches per 1000 inst
indirect 24481367087 # 11.241 indirect branches per 1000 inst
cpu-cycles 5275899989187 # 3.13 GHz
instructions 2174535846634 # 0.41 IPC
slots 10560962539674 #
retiring 752461733550 # 7.1% ( 8.5%)
-- ucode 922767045 # 0.0%
-- fastpath 751538966505 # 7.1%
frontend 958596815267 # 9.1% (10.8%)
-- latency 520474659312 # 4.9%
-- bandwidth 438122155955 # 4.1%
backend 6775989132895 # 64.2% (76.4%)
-- cpu 166640846018 # 1.6%
-- memory 6609348286877 # 62.6%
speculation 384200934302 # 3.6% ( 4.3%)
-- branch mispredict 378018914083 # 3.6%
-- pipeline restart 6182020219 # 0.1%
smt-contention 1689708234394 # 16.0% ( 0.0%)
cpu-cycles 5272870167404 # 3.26 GHz
instructions 2176222575312 # 0.41 IPC
instructions 725787433025 # 24.967 l2 access per 1000 inst
l2 hit from l1 12503036149 # 58.73% l2 miss
l2 miss from l1 5866288583 #
l2 hit from l2 pf 840727641 #
l3 hit from l2 pf 1081438228 #
l3 miss from l2 pf 3695290297 #
instructions 724987198135 # 0.163 float per 1000 inst
float 512 51 # 0.000 AVX-512 per 1000 inst
float 256 336 # 0.000 AVX-256 per 1000 inst
float 128 118149446 # 0.163 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 0 # 0.000 scalar per 1000 instIntel metrics
elapsed 111.043
on_cpu 0.701 # 11.21 / 16 cores
utime 1235.188
stime 10.000
nvcsw 6590 # 38.10%
nivcsw 10708 # 61.90%
inblock 1267304 # 11412.76/sec
onblock 4784552 # 43087.47/sec
cpu-clock 1245213949207 # 1245.214 seconds
task-clock 1245224972995 # 1245.225 seconds
page faults 3999376 # 3211.770/sec
context switches 17634 # 14.161/sec
cpu migrations 611 # 0.491/sec
major page faults 166 # 0.133/sec
minor page faults 3999210 # 3211.637/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 303879312864 # 139.664 branches per 1000 inst
branch misses 17380240502 # 5.72% branch miss
conditional 303879327936 # 139.664 conditional branches per 1000 inst
indirect 96960741484 # 44.564 indirect branches per 1000 inst
slots 6462683136008 #
retiring 1298072778471 # 20.1% (20.1%)
-- ucode 95216649660 # 1.5%
-- fastpath 1202856128811 # 18.6%
frontend 749757159532 # 11.6% (11.6%)
-- latency 423443276271 # 6.6%
-- bandwidth 326313883261 # 5.0%
backend 3300833107005 # 51.1% (51.1%)
-- cpu 567361250552 # 8.8%
-- memory 2733471856453 # 42.3%
speculation 1323336368123 # 20.5% (20.5%)
-- branch mispredict 1309834630416 # 20.3%
-- pipeline restart 13501737707 # 0.2%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 13555660857979 # 2.11 GHz
instructions 7882561270813 # 0.58 IPC
l2 access 68241841123 # 16.037 l2 access per 1000 inst
l2 miss 32692385575 # 47.91% l2 missProcess structure
455 processes
78 xz 18339.60 175.46
64 clinfo 11.52 2.88
38 vulkaninfo 0.75 1.32
4 vulkani:disk$0 0.08 0.14
6 glxinfo:gdrv0 0.05 0.13
6 php 0.05 0.09
6 clang 0.05 0.02
2 llvmpipe-0 0.04 0.07
2 llvmpipe-1 0.04 0.07
2 llvmpipe-10 0.04 0.07
2 llvmpipe-11 0.04 0.07
2 llvmpipe-12 0.04 0.07
2 llvmpipe-13 0.04 0.07
2 llvmpipe-14 0.04 0.07
2 llvmpipe-15 0.04 0.07
2 llvmpipe-2 0.04 0.07
2 llvmpipe-3 0.04 0.07
2 llvmpipe-4 0.04 0.07
2 llvmpipe-5 0.04 0.07
2 llvmpipe-6 0.04 0.07
2 llvmpipe-7 0.04 0.07
2 llvmpipe-8 0.04 0.07
2 llvmpipe-9 0.04 0.07
2 glxinfo 0.03 0.06
2 glxinfo:cs0 0.03 0.05
2 glxinfo:disk$0 0.03 0.05
2 glxinfo:sh0 0.03 0.05
2 glxinfo:shlo0 0.03 0.05
4 rm 0.00 0.31
1 lspci 0.00 0.03
93 sh 0.00 0.00
13 gcc 0.00 0.00
10 gsettings 0.00 0.00
10 sed 0.00 0.00
9 stty 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 bash 0.00 0.00
4 gmain 0.00 0.00
3 compress-xz 0.00 0.00
3 ls 0.00 0.00
2 cc 0.00 0.00
2 dconf worker 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 date 0.00 0.00
1 dirname 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 ps 0.00 0.00
1 qdbus 0.00 0.00
1 readlink 0.00 0.00
1 realpath 0.00 0.00
1 sort 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 processesCore computation area shows we launch on all cores
36804) compress-xz start=37.55 finish=65.65
36805) xz start=37.56 finish=65.40
36806) xz start=37.56 finish=37.56
36807) xz start=37.56 finish=37.56
36808) xz start=37.56 finish=37.56
36809) xz start=37.56 finish=37.56
36810) xz start=37.56 finish=37.56
36811) sed start=37.56 finish=37.56
36812) xz start=37.56 finish=37.57
36813) ls start=37.56 finish=37.57
36814) sed start=37.56 finish=37.57
36815) xz start=37.57 finish=37.57
36816) xz start=37.57 finish=37.57
36817) xz start=37.57 finish=37.57
36818) sed start=37.57 finish=37.57
36819) xz start=37.57 finish=65.40
36820) xz start=37.60 finish=65.40
36821) xz start=37.62 finish=65.40
36822) xz start=37.65 finish=65.40
36823) xz start=37.68 finish=65.40
36824) xz start=37.71 finish=65.40
36825) xz start=37.73 finish=65.40
36826) xz start=37.76 finish=65.40
36827) xz start=37.79 finish=65.40
36828) xz start=37.82 finish=65.40
36829) xz start=37.85 finish=65.40
36830) xz start=37.88 finish=65.40
36831) xz start=37.92 finish=65.40
36832) xz start=37.95 finish=65.40
36833) xz start=37.98 finish=65.40
36834) xz start=38.01 finish=65.40
36835) sh start=65.65 finish=65.77
36836) bash start=65.65 finish=65.77
36837) rm start=65.65 finish=65.77