Parallel testing of the openssl library with seven different encryption methods. These are parallel tests that fully use the processor.
Topdown shows a variation depending on the test with some having high retirement rates. Not much in way of backend stalls.
AMD metrics emphasize running on all cores. Some floating point code. Not much L2 access at all and little speculation penalty.
elapsed 3546.361
on_cpu 0.964 # 15.43 / 16 cores
utime 54705.828
stime 6.286
nvcsw 2786 # 0.61%
nivcsw 454724 # 99.39%
inblock 0 # 0.00/sec
onblock 38344 # 10.81/sec
cpu-clock 54712772033085 # 54712.772 seconds
task-clock 54712944501664 # 54712.945 seconds
page faults 237163 # 4.335/sec
context switches 474670 # 8.676/sec
cpu migrations 288 # 0.005/sec
major page faults 6 # 0.000/sec
minor page faults 237157 # 4.335/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 28141573963092 # 84.214 branches per 1000 inst
branch misses 4040824108 # 0.01% branch miss
conditional 20015608782402 # 59.897 conditional branches per 1000 inst
indirect 1374390913138 # 4.113 indirect branches per 1000 inst
cpu-cycles 224836154819168 # 3.96 GHz
instructions 333918782253330 # 1.49 IPC
slots 449645952363360 #
retiring 120885862595350 # 26.9% (42.2%)
-- ucode 2836478130363 # 0.6%
-- fastpath 118049384464987 # 26.3%
frontend 17843197259553 # 4.0% ( 6.2%)
-- latency 3325064484588 # 0.7%
-- bandwidth 14518132774965 # 3.2%
backend 147725599817768 # 32.9% (51.6%)
-- cpu 130249734748986 # 29.0%
-- memory 17475865068782 # 3.9%
speculation 15053448577 # 0.0% ( 0.0%)
-- branch mispredict 14694571098 # 0.0%
-- pipeline restart 358877479 # 0.0%
smt-contention 163175458826959 # 36.3% ( 0.0%)
cpu-cycles 224755130568245 # 3.96 GHz
instructions 333767051670546 # 1.49 IPC
instructions 111255059194864 # 1.475 l2 access per 1000 inst
l2 hit from l1 144816833386 # 0.08% l2 miss
l2 miss from l1 93791436 #
l2 hit from l2 pf 19193166382 #
l3 hit from l2 pf 37068899 #
l3 miss from l2 pf 6992874 #
instructions 111228238560745 # 148.491 float per 1000 inst
float 512 85 # 0.000 AVX-512 per 1000 inst
float 256 229775066001 # 2.066 AVX-256 per 1000 inst
float 128 16286635504331 # 146.425 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 5 # 0.000 scalar per 1000 inst
Intel metrics
elapsed 3546.473
on_cpu 0.964 # 15.42 / 16 cores
utime 54698.894
stime 1.537
nvcsw 2754 # 0.71%
nivcsw 386803 # 99.29%
inblock 1624 # 0.46/sec
onblock 26832 # 7.57/sec
cpu-clock 54700573721291 # 54700.574 seconds
task-clock 54700650886402 # 54700.651 seconds
page faults 221464 # 4.049/sec
context switches 406713 # 7.435/sec
cpu migrations 370 # 0.007/sec
major page faults 11 # 0.000/sec
minor page faults 221453 # 4.048/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 27345414812497 # 75.259 branches per 1000 inst
branch misses 9738137632 # 0.04% branch miss
conditional 27345414836753 # 75.259 conditional branches per 1000 inst
indirect 9376516889196 # 25.806 indirect branches per 1000 inst
slots 252047617073012 #
retiring 193522371846759 # 76.8% (76.8%)
-- ucode 10580939452566 # 4.2%
-- fastpath 182941432394193 # 72.6%
frontend 44035380227094 # 17.5% (17.5%)
-- latency 25740142883266 # 10.2%
-- bandwidth 18295237343828 # 7.3%
backend 12144723001961 # 4.8% ( 4.8%)
-- cpu 11181100551912 # 4.4%
-- memory 963622450049 # 0.4%
speculation 141736916921 # 0.1% ( 0.1%)
-- branch mispredict 122323887918 # 0.0%
-- pipeline restart 19413029003 # 0.0%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 85364189856430 # 1.50 GHz
instructions 175744735277161 # 2.06 IPC
l2 access 9473367665 # 0.055 l2 access per 1000 inst
l2 miss 251739645 # 2.66% l2 miss
Process overview shows time all spent in openssl using the internal benchmark mechanism
732 processes
378 openssl 54697.53 1.02
68 clinfo 15.88 6.98
38 vulkaninfo 0.95 1.33
6 php 0.14 0.24
6 glxinfo:gdrv0 0.12 0.09
4 vulkani:disk$0 0.10 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
6 clang 0.04 0.08
1 lspci 0.00 0.02
94 sh 0.00 0.00
13 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 gmain 0.00 0.00
3 rocminfo 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 dconf worker 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
0 processes running
47 maximum processes
Straightforward computation structures
2555597) openssl cpu=7 start=5.94 finish=185.95
2555598) openssl cpu=10 start=5.94 finish=185.95
2555599) openssl cpu=10 start=5.95 finish=185.95
2555600) openssl cpu=4 start=5.95 finish=185.95
2555601) openssl cpu=6 start=5.95 finish=185.95
2555602) openssl cpu=3 start=5.95 finish=185.95
2555603) openssl cpu=1 start=5.95 finish=185.95
2555604) openssl cpu=0 start=5.95 finish=185.95
2555605) openssl cpu=7 start=5.95 finish=185.95
2555606) openssl cpu=13 start=5.95 finish=185.95
2555607) openssl cpu=9 start=5.95 finish=185.95
2555608) openssl cpu=12 start=5.95 finish=185.95
2555609) openssl cpu=14 start=5.95 finish=185.95
2555610) openssl cpu=11 start=5.95 finish=185.95
2555611) openssl cpu=8 start=5.95 finish=185.95
2555612) openssl cpu=2 start=5.95 finish=185.95
2555613) openssl cpu=5 start=5.95 finish=185.95
2555614) openssl cpu=15 start=5.95 finish=185.95