Open Image Denoise library for ray-tracing and part of the oneAPI rendering toolkit. There are three tests that run on the CPU. On AMD the hip and SYCL tests fail. Looks like the six failures may be that single-threaded segment at the end.
Topdown profile is dominated by backend stalls.
AMD metrics show little floating point. Backend stalls are cpu-bound not memory bound. Frontend stalls are very low.
elapsed 1143.453
on_cpu 0.852 # 13.64 / 16 cores
utime 15569.790
stime 24.394
nvcsw 137174 # 47.97%
nivcsw 148800 # 52.03%
inblock 8 # 0.01/sec
onblock 13656 # 11.94/sec
cpu-clock 15595849921789 # 15595.850 seconds
task-clock 15596082503631 # 15596.083 seconds
page faults 7315810 # 469.080/sec
context switches 291471 # 18.689/sec
cpu migrations 931 # 0.060/sec
major page faults 57 # 0.004/sec
minor page faults 7315753 # 469.076/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 202447109427 # 4.901 branches per 1000 inst
branch misses 2965059032 # 1.46% branch miss
conditional 185803354842 # 4.498 conditional branches per 1000 inst
indirect 786178808 # 0.019 indirect branches per 1000 inst
cpu-cycles 62242756524025 # 3.39 GHz
instructions 41309080431827 # 0.66 IPC low
slots 124479064490070 #
retiring 14028040556278 # 11.3% (14.2%)
-- ucode 4540852651 # 0.0%
-- fastpath 14023499703627 # 11.3%
frontend 903299780714 # 0.7% ( 0.9%) low
-- latency 805847673036 # 0.6%
-- bandwidth 97452107678 # 0.1%
backend 83506378748576 # 67.1% (84.8%) high
-- cpu 72430204392186 # 58.2%
-- memory 11076174356390 # 8.9%
speculation 23559215421 # 0.0% ( 0.0%) low
-- branch mispredict 19678376604 # 0.0%
-- pipeline restart 3880838817 # 0.0%
smt-contention 26017722604434 # 20.9% ( 0.0%)
cpu-cycles 62237080562275 # 3.38 GHz
instructions 41309704710978 # 0.66 IPC low
instructions 13768582732070 # 125.298 l2 access per 1000 inst
l2 hit from l1 1477657932786 # 4.28% l2 miss
l2 miss from l1 13861287643 #
l2 hit from l2 pf 187554180525 #
l3 hit from l2 pf 20200972860 #
l3 miss from l2 pf 39763266084 #
instructions 13770331503339 # 6.083 float per 1000 inst
float 512 108 # 0.000 AVX-512 per 1000 inst
float 256 1120053095 # 0.081 AVX-256 per 1000 inst
float 128 82649393722 # 6.002 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 0 # 0.000 scalar per 1000 inst
instructions 2655157 #
opcache 985914 # 371.320 opcache per 1000 inst
opcache miss 525657 # 53.3% opcache miss rate
l1 dTLB miss 5852 # 2.204 L1 dTLB per 1000 inst
l2 dTLB miss 1012 # 0.381 L2 dTLB per 1000 inst
instructions 2809369 #
icache 1346399 # 479.253 icache per 1000 inst
icache miss 118242 # 8.8% icache miss rate
l1 iTLB miss 13 # 0.005 L1 iTLB per 1000 inst
l2 iTLB miss 0 # 0.000 L2 iTLB per 1000 inst
tlb flush 19 # 0.007 TLB flush per 1000 inst
CPU stalls of 58% are almost as high as minibude (64%) and much above the mean with both showing up as outliers on the distribution.
Intel metrics show most memory is L1 with only 2.4% dram.
elapsed 1784.190
on_cpu 0.919 # 14.71 / 16 cores
utime 26221.932
stime 21.883
nvcsw 228045 # 48.75%
nivcsw 239714 # 51.25%
inblock 18752 # 10.51/sec
onblock 1800 # 1.01/sec
cpu-clock 26244075480642 # 26244.075 seconds
task-clock 26244333593954 # 26244.334 seconds
page faults 8712850 # 331.990/sec
context switches 476473 # 18.155/sec
cpu migrations 30947 # 1.179/sec
major page faults 161 # 0.006/sec
minor page faults 8712689 # 331.984/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 1321680383971 # 12.574 branches per 1000 inst
branch misses 2731388696 # 0.21% branch miss
conditional 1321680401059 # 12.574 conditional branches per 1000 inst
indirect 358569107192 # 3.411 indirect branches per 1000 inst
slots 98943282613106 #
retiring 49432693869376 # 50.0% (50.0%)
-- ucode 563001550256 # 0.6%
-- fastpath 48869692319120 # 49.4%
frontend 22964816174943 # 23.2% (23.2%)
-- latency 22183147237452 # 22.4%
-- bandwidth 781668937491 # 0.8%
backend 25631568005899 # 25.9% (25.9%)
-- cpu 13970973300638 # 14.1%
-- memory 11660594705261 # 11.8%
speculation 398396612737 # 0.4% ( 0.4%) low
-- branch mispredict 281168117116 # 0.3%
-- pipeline restart 117228495621 # 0.1%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 64601012956599 # 2.60 GHz
instructions 103400515861605 # 1.60 IPC
l2 access 803899147867 # 15.693 l2 access per 1000 inst
l2 miss 186431498354 # 23.19% l2 miss
cpu-cycles 32018963882436 # 26.2% memory latency
load stalls 8267191766134 # 20.3% l1 bound
l1 miss 1767537943547 # 1.8% l2 bound
l2 miss 1198804839203 # 1.4% l3 bound
l3 miss 759185998010 # 2.4% dram bound
store_stalls 128410516875 # 0.4% store bound
Process summary shows time spent in the benchmark application.
592 processes
200 oidnBenchmark 236248.38 341.85
68 clinfo 19.50 6.32
38 vulkaninfo 1.34 1.35
4 vulkani:disk$0 0.15 0.15
6 glxinfo:gdrv0 0.15 0.07
6 glxinfo:gl0 0.15 0.07
6 php 0.13 0.28
2 llvmpipe-0 0.08 0.07
2 llvmpipe-1 0.08 0.07
2 llvmpipe-10 0.08 0.07
2 llvmpipe-11 0.08 0.07
2 llvmpipe-12 0.08 0.07
2 llvmpipe-13 0.08 0.07
2 llvmpipe-14 0.08 0.07
2 llvmpipe-15 0.08 0.07
2 llvmpipe-2 0.08 0.07
2 llvmpipe-3 0.08 0.07
2 llvmpipe-4 0.08 0.07
2 llvmpipe-5 0.08 0.07
2 llvmpipe-6 0.08 0.07
2 llvmpipe-7 0.08 0.07
2 llvmpipe-8 0.08 0.07
2 llvmpipe-9 0.08 0.07
2 glxinfo 0.07 0.03
2 glxinfo:cs0 0.07 0.03
2 glxinfo:disk$0 0.07 0.03
2 glxinfo:sh0 0.07 0.03
2 glxinfo:shlo0 0.07 0.03
6 clang 0.06 0.05
3 rocminfo 0.03 0.03
1 lspci 0.01 0.02
85 sh 0.00 0.00
27 oidn 0.00 0.00
12 gcc 0.00 0.00
10 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
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 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 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 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
16 processes running
63 maximum processes
Computation blocks show a similar pattern
8061) oidn cpu=1 start=89.65 finish=169.60
8062) oidnBenchmark cpu=10 start=89.65 finish=169.58
8065) oidnBenchmark cpu=12 start=89.68 finish=169.58
8066) oidnBenchmark cpu=5 start=89.68 finish=89.68
8067) oidnBenchmark cpu=15 start=90.14 finish=169.58
8068) oidnBenchmark cpu=5 start=90.14 finish=169.58
8070) oidnBenchmark cpu=3 start=90.14 finish=169.58
8075) ?? cpu=0 start=90.14 finish=0.00
8078) ?? cpu=0 start=90.14 finish=0.00
8077) oidnBenchmark cpu=14 start=90.14 finish=169.58
8074) oidnBenchmark cpu=11 start=90.14 finish=169.58
8072) oidnBenchmark cpu=1 start=90.14 finish=169.58
8076) oidnBenchmark cpu=13 start=90.14 finish=169.58
8079) oidnBenchmark cpu=8 start=90.14 finish=169.58
8069) oidnBenchmark cpu=10 start=90.14 finish=169.58
8071) oidnBenchmark cpu=9 start=90.14 finish=169.58
8080) oidnBenchmark cpu=6 start=90.14 finish=169.58
8081) oidnBenchmark cpu=7 start=90.14 finish=169.58
8073) oidnBenchmark cpu=0 start=90.14 finish=169.58