This is a test of Google’s libwebp. There are five tests with different characteristics but generally just a few threads running.
Topdown shows this has somewhat higher speculation time with a varied profile.
AMD metrics show high number of conditional branches and 3% branch miss ratio
elapsed 259.402
on_cpu 0.064 # 1.02 / 16 cores
utime 259.489
stime 5.947
nvcsw 2640 # 72.55%
nivcsw 999 # 27.45%
inblock 0 # 0.00/sec
onblock 240368 # 926.62/sec
cpu-clock 265471255850 # 265.471 seconds
task-clock 265477297262 # 265.477 seconds
page faults 3400901 # 12810.515/sec
context switches 4539 # 17.098/sec
cpu migrations 319 # 1.202/sec
major page faults 2 # 0.008/sec
minor page faults 3400899 # 12810.508/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 410359479521 # 151.980 branches per 1000 inst
branch misses 12595105335 # 3.07% branch miss
conditional 338774505728 # 125.468 conditional branches per 1000 inst
indirect 11288954632 # 4.181 indirect branches per 1000 inst
cpu-cycles 1208489125105 # 0.29 GHz
instructions 2695245779943 # 2.23 IPC
slots 2421004730436 #
retiring 916927391533 # 37.9% (37.9%)
-- ucode 2392968214 # 0.1%
-- fastpath 914534423319 # 37.8%
frontend 416764527628 # 17.2% (17.2%)
-- latency 238900819464 # 9.9%
-- bandwidth 177863708164 # 7.3%
backend 809540702310 # 33.4% (33.4%)
-- cpu 215619881601 # 8.9%
-- memory 593920820709 # 24.5%
speculation 277624394550 # 11.5% (11.5%)
-- branch mispredict 271447888184 # 11.2%
-- pipeline restart 6176506366 # 0.3%
smt-contention 147428348 # 0.0% ( 0.0%)
cpu-cycles 1208908612539 # 0.29 GHz
instructions 2695792729167 # 2.23 IPC
instructions 899452943096 # 16.480 l2 access per 1000 inst
l2 hit from l1 9918472214 # 33.34% l2 miss
l2 miss from l1 2035100972 #
l2 hit from l2 pf 1997801828 #
l3 hit from l2 pf 2514829497 #
l3 miss from l2 pf 391704245 #
instructions 899780198334 # 125.830 float per 1000 inst
float 512 96 # 0.000 AVX-512 per 1000 inst
float 256 760 # 0.000 AVX-256 per 1000 inst
float 128 113219444716 # 125.830 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 0 # 0.000 scalar per 1000 inst
Intel metrics
elapsed 288.864
on_cpu 0.067 # 1.08 / 16 cores
utime 307.575
stime 4.127
nvcsw 2493 # 68.91%
nivcsw 1125 # 31.09%
inblock 18608 # 64.42/sec
onblock 229064 # 792.98/sec
cpu-clock 311721259222 # 311.721 seconds
task-clock 311728053540 # 311.728 seconds
page faults 3378818 # 10838.992/sec
context switches 4687 # 15.036/sec
cpu migrations 418 # 1.341/sec
major page faults 12 # 0.038/sec
minor page faults 3378806 # 10838.954/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 409445465371 # 151.679 branches per 1000 inst
branch misses 11357355020 # 2.77% branch miss
conditional 409445484315 # 151.679 conditional branches per 1000 inst
indirect 11358170633 # 4.208 indirect branches per 1000 inst
slots 7063432160630 #
retiring 2651120892393 # 37.5% (37.5%)
-- ucode 292260741628 # 4.1%
-- fastpath 2358860150765 # 33.4%
frontend 910197614075 # 12.9% (12.9%)
-- latency 311140397744 # 4.4%
-- bandwidth 599057216331 # 8.5%
backend 2110415363627 # 29.9% (29.9%)
-- cpu 855814439270 # 12.1%
-- memory 1254600924357 # 17.8%
speculation 1421621797189 # 20.1% (20.1%)
-- branch mispredict 1411554187069 # 20.0%
-- pipeline restart 10067610120 # 0.1%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 1178755810803 # 0.25 GHz
instructions 2698955253610 # 2.29 IPC
l2 access 43493783443 # 16.124 l2 access per 1000 inst
l2 miss 17665817237 # 40.62% l2 miss
Process overview
587 processes
162 cwebp 453.20 9.12
68 clinfo 16.53 5.98
38 vulkaninfo 0.95 1.34
6 glxinfo:gdrv0 0.12 0.10
4 vulkani:disk$0 0.10 0.14
6 clang 0.07 0.05
6 php 0.06 0.14
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 0.04
2 glxinfo:shlo0 0.06 0.04
2 llvmpipe-0 0.05 0.07
2 llvmpipe-1 0.05 0.07
2 llvmpipe-10 0.05 0.07
2 llvmpipe-11 0.05 0.07
2 llvmpipe-12 0.05 0.07
2 llvmpipe-13 0.05 0.07
2 llvmpipe-14 0.05 0.07
2 llvmpipe-15 0.05 0.07
2 llvmpipe-2 0.05 0.07
2 llvmpipe-3 0.05 0.07
2 llvmpipe-4 0.05 0.07
2 llvmpipe-5 0.05 0.07
2 llvmpipe-6 0.05 0.07
2 llvmpipe-7 0.05 0.07
2 llvmpipe-8 0.05 0.07
2 llvmpipe-9 0.05 0.07
3 rocminfo 0.03 0.00
1 lspci 0.00 0.02
1 ps 0.00 0.01
90 sh 0.00 0.00
46 sed 0.00 0.00
15 ls 0.00 0.00
15 webp 0.00 0.00
13 gcc 0.00 0.00
9 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 gmain 0.00 0.00
3 dconf worker 0.00 0.00
2 cc 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 qdbus 0.00 0.00
1 readlink 0.00 0.00
1 realpath 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
Core computation structure
232586) webp cpu=3 start=5.55 finish=7.06
232587) cwebp cpu=4 start=5.55 finish=7.06
232588) cwebp cpu=9 start=5.56 finish=5.56
232589) cwebp cpu=14 start=5.56 finish=5.56
232590) cwebp cpu=8 start=5.56 finish=5.56
232591) cwebp cpu=7 start=5.56 finish=5.56
232592) cwebp cpu=2 start=5.56 finish=5.56
232593) sed cpu=13 start=5.56 finish=5.56
232594) cwebp cpu=9 start=5.56 finish=5.57
232595) ls cpu=14 start=5.56 finish=5.57
232596) sed cpu=2 start=5.57 finish=5.57
232597) cwebp cpu=7 start=5.57 finish=5.57
232598) cwebp cpu=9 start=5.57 finish=5.57
232599) cwebp cpu=14 start=5.57 finish=5.57
232600) sed cpu=13 start=5.57 finish=5.57
232601) cwebp cpu=13 start=5.79 finish=5.89