A Vulkan compute benchmark. Perhaps using GPU more than CPU, but interesting to see as a workload. The scores for AMD are ~4x that of Intel and the “on cpu” for AMD is extremely low, so likely this is a GPU benchmark on AMD and not a CPU benchmark.
Topdown profile not as interesting for a GPU workload. Most of the limited time is in frontend stalls.
AMD metrics
elapsed 553.514
on_cpu 0.000 # 0.00 / 16 cores
utime 1.526
stime 1.212
nvcsw 2733 # 86.98%
nivcsw 409 # 13.02%
inblock 0 # 0.00/sec
onblock 12856 # 23.23/sec
cpu-clock 2855338425 # 2.855 seconds
task-clock 2868514388 # 2.869 seconds
page faults 188333 # 65655.240/sec
context switches 5740 # 2001.036/sec
cpu migrations 365 # 127.244/sec
major page faults 2 # 0.697/sec
minor page faults 188331 # 65654.543/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 2368093368 # 193.615 branches per 1000 inst
branch misses 95611140 # 4.04% branch miss
conditional 1562371350 # 127.739 conditional branches per 1000 inst
indirect 71829798 # 5.873 indirect branches per 1000 inst
cpu-cycles 6729727183 # 0.00 GHz
instructions 11277840703 # 1.68 IPC
slots 14128227432 #
retiring 4129006916 # 29.2% (29.2%)
-- ucode 14670688 # 0.1%
-- fastpath 4114336228 # 29.1%
frontend 6880000619 # 48.7% (48.7%) high
-- latency 5825721654 # 41.2%
-- bandwidth 1054278965 # 7.5%
backend 2397483487 # 17.0% (17.0%) low
-- cpu 367027234 # 2.6%
-- memory 2030456253 # 14.4%
speculation 712684044 # 5.0% ( 5.0%)
-- branch mispredict 705290499 # 5.0%
-- pipeline restart 7393545 # 0.1%
smt-contention 8850370 # 0.1% ( 0.0%)
cpu-cycles 6758209267 # 0.00 GHz
instructions 11770449191 # 1.74 IPC
instructions 4184068846 # 37.128 l2 access per 1000 inst
l2 hit from l1 133916262 # 20.49% l2 miss
l2 miss from l1 20575948 #
l2 hit from l2 pf 10174800 #
l3 hit from l2 pf 5159661 #
l3 miss from l2 pf 6096840 #
instructions 4024389819 # 16.687 float per 1000 inst
float 512 60 # 0.000 AVX-512 per 1000 inst
float 256 620 # 0.000 AVX-256 per 1000 inst
float 128 67152429 # 16.686 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 487.511
on_cpu 0.000 # 0.00 / 16 cores
utime 1.679
stime 0.655
nvcsw 2699 # 93.98%
nivcsw 173 # 6.02%
inblock 15608 # 32.02/sec
onblock 1944 # 3.99/sec
cpu-clock 2416426268 # 2.416 seconds
task-clock 2426124568 # 2.426 seconds
page faults 173841 # 71653.782/sec
context switches 5143 # 2119.842/sec
cpu migrations 261 # 107.579/sec
major page faults 77 # 31.738/sec
minor page faults 173764 # 71622.044/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 2151066026 # 188.267 branches per 1000 inst
branch misses 28106902 # 1.31% branch miss
conditional 2151078154 # 188.268 conditional branches per 1000 inst
indirect 74254188 # 6.499 indirect branches per 1000 inst
slots 31725273092 #
retiring 10600531446 # 33.4% (33.4%)
-- ucode 1170997398 # 3.7%
-- fastpath 9429534048 # 29.7%
frontend 8715553434 # 27.5% (27.5%)
-- latency 4390001681 # 13.8%
-- bandwidth 4325551753 # 13.6%
backend 8702700014 # 27.4% (27.4%)
-- cpu 2757085515 # 8.7%
-- memory 5945614499 # 18.7%
speculation 3449049077 # 10.9% (10.9%) high
-- branch mispredict 3212998733 # 10.1%
-- pipeline restart 236050344 # 0.7%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 5320185366 # 0.00 GHz
instructions 10362909825 # 1.95 IPC
l2 access 370759599 # 36.047 l2 access per 1000 inst
l2 miss 143647561 # 38.74% l2 miss
Process overview shows the time is in the test scaffold
356 processes
68 clinfo 19.85 6.32
38 vulkaninfo 1.14 1.50
6 vkpeak 0.43 0.36
3 vkpeak:disk$0 0.43 0.36
6 glxinfo:gdrv0 0.13 0.04
6 glxinfo:gl0 0.13 0.04
4 vulkani:disk$0 0.12 0.16
2 glxinfo 0.08 0.02
2 glxinfo:cs0 0.08 0.02
2 glxinfo:disk$0 0.08 0.02
2 glxinfo:sh0 0.08 0.02
2 glxinfo:shlo0 0.08 0.02
6 php 0.06 0.23
2 llvmpipe-0 0.06 0.08
2 llvmpipe-1 0.06 0.08
2 llvmpipe-10 0.06 0.08
2 llvmpipe-11 0.06 0.08
2 llvmpipe-12 0.06 0.08
2 llvmpipe-13 0.06 0.08
2 llvmpipe-14 0.06 0.08
2 llvmpipe-15 0.06 0.08
2 llvmpipe-2 0.06 0.08
2 llvmpipe-3 0.06 0.08
2 llvmpipe-4 0.06 0.08
2 llvmpipe-5 0.06 0.08
2 llvmpipe-6 0.06 0.08
2 llvmpipe-7 0.06 0.08
2 llvmpipe-8 0.06 0.08
2 llvmpipe-9 0.06 0.08
6 clang 0.05 0.07
3 rocminfo 0.03 0.00
1 lspci 0.01 0.02
1 ps 0.00 0.01
82 sh 0.00 0.00
15 gsettings 0.00 0.00
12 gcc 0.00 0.00
9 systemd-detect- 0.00 0.00
8 stat 0.00 0.00
6 llvm-link 0.00 0.00
5 phoronix-test-s 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 dirname 0.00 0.00
1 dmesg 0.00 0.00
1 dmidecode 0.00 0.00
1 gmain 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 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
Computation blocks
2603431) vkpeak cpu=3 start=6.66 finish=185.81
2603432) vkpeak cpu=15 start=6.67 finish=185.81
2603433) vkpeak:disk$0 cpu=13 start=6.70 finish=185.81
2603439) vkpeak cpu=4 start=189.82 finish=369.02
2603440) vkpeak cpu=15 start=189.82 finish=369.01
2603441) vkpeak:disk$0 cpu=9 start=189.85 finish=369.01
2603443) vkpeak cpu=8 start=373.02 finish=552.26
2603444) vkpeak cpu=11 start=373.03 finish=552.25
2603445) vkpeak:disk$0 cpu=15 start=373.06 finish=552.25