asmfish is a chess benchmark written in assembly. Looks like a multi-threaded program.
Topdown profile shows a moderate branch misprediction with backend stalls slightly higher but otherwise retirement rate, frontend stalls are similar.
AMD metrics show little floating point and not large L2 access.
elapsed 1517.211
on_cpu 0.966 # 15.46 / 16 cores
utime 23445.332
stime 9.755
nvcsw 9771 # 3.61%
nivcsw 260577 # 96.39%
inblock 0 # 0.00/sec
onblock 13808 # 9.10/sec
cpu-clock 23457218382276 # 23457.218 seconds
task-clock 23457430457602 # 23457.430 seconds
page faults 2947383 # 125.648/sec
context switches 277731 # 11.840/sec
cpu migrations 500 # 0.021/sec
major page faults 2 # 0.000/sec
minor page faults 2947381 # 125.648/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 11158947860856 # 97.540 branches per 1000 inst
branch misses 797121864946 # 7.14% branch miss
conditional 9591696591582 # 83.841 conditional branches per 1000 inst
indirect 156117278624 # 1.365 indirect branches per 1000 inst
cpu-cycles 28452192694276 # 3.76 GHz
instructions 35324580453604 # 1.24 IPC
slots 56921922062802 #
retiring 11727272498088 # 20.6% (29.0%)
-- ucode 57437721 # 0.0%
-- fastpath 11727215060367 # 20.6%
frontend 12143947085186 # 21.3% (30.0%)
-- latency 8533709194308 # 15.0%
-- bandwidth 3610237890878 # 6.3%
backend 13587847031014 # 23.9% (33.6%)
-- cpu 2286483490267 # 4.0%
-- memory 11301363540747 # 19.9%
speculation 2968536513516 # 5.2% ( 7.3%)
-- branch mispredict 2960092527472 # 5.2%
-- pipeline restart 8443986044 # 0.0%
smt-contention 16494268066111 # 29.0% ( 0.0%)
cpu-cycles 27259117483983 # 3.75 GHz
instructions 33857638783348 # 1.24 IPC
instructions 11290650453951 # 22.456 l2 access per 1000 inst
l2 hit from l1 225708480194 # 13.35% l2 miss
l2 miss from l1 19383607205 #
l2 hit from l2 pf 13370004613 #
l3 hit from l2 pf 9348355650 #
l3 miss from l2 pf 5119969690 #
instructions 11285364506585 # 11.949 float per 1000 inst
float 512 36 # 0.000 AVX-512 per 1000 inst
float 256 656 # 0.000 AVX-256 per 1000 inst
float 128 134852943514 # 11.949 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 0 # 0.000 scalar per 1000 inst
instructions 2663101 #
opcache 991121 # 372.168 opcache per 1000 inst
opcache miss 535343 # 54.0% opcache miss rate
l1 dTLB miss 5371 # 2.017 L1 dTLB per 1000 inst
l2 dTLB miss 1131 # 0.425 L2 dTLB per 1000 inst
instructions 2695530 #
icache 1308533 # 485.446 icache per 1000 inst
icache miss 109091 # 8.3% icache miss rate
l1 iTLB miss 11 # 0.004 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
Intel metrics have high branch misprediction stalls
elapsed 930.067
on_cpu 0.973 # 15.57 / 16 cores
utime 14480.756
stime 2.824
nvcsw 5694 # 4.96%
nivcsw 109065 # 95.04%
inblock 600 # 0.65/sec
onblock 1632 # 1.75/sec
cpu-clock 14484109292573 # 14484.109 seconds
task-clock 14484179405678 # 14484.179 seconds
page faults 1535742 # 106.029/sec
context switches 119234 # 8.232/sec
cpu migrations 363 # 0.025/sec
major page faults 20 # 0.001/sec
minor page faults 1535722 # 106.028/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 5431797354548 # 97.615 branches per 1000 inst
branch misses 419390430460 # 7.72% branch miss
conditional 5431797369236 # 97.615 conditional branches per 1000 inst
indirect 1387301717460 # 24.931 indirect branches per 1000 inst
slots 45263131107686 #
retiring 18196158114810 # 40.2% (40.2%)
-- ucode 1298337179576 # 2.9%
-- fastpath 16897820935234 # 37.3%
frontend 13104919029834 # 29.0% (29.0%)
-- latency 5908075894258 # 13.1%
-- bandwidth 7196843135576 # 15.9%
backend 5277515617044 # 11.7% (11.7%) low
-- cpu 2851022639365 # 6.3%
-- memory 2426492977679 # 5.4%
speculation 8913974754817 # 19.7% (19.7%) high
-- branch mispredict 8854096911089 # 19.6%
-- pipeline restart 59877843728 # 0.1%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 15327163008989 # 1.63 GHz
instructions 18311970348982 # 1.19 IPC
l2 access 304702922646 # 18.131 l2 access per 1000 inst
l2 miss 87356480707 # 28.67% l2 miss
cpu-cycles 14238711708962 # 22.3% memory latency
load stalls 3165555352508 # 4.5% l1 bound
l1 miss 2528396934647 # 9.1% l2 bound
l2 miss 1232314608415 # 2.3% l3 bound
l3 miss 905266872587 # 6.4% dram bound
store_stalls 13992828017 # 0.1% store bound
Process overview shows asmFish_2018-0 as the primary process
402 processes
51 asmFishL_2018-0 119149.43 34.29
68 clinfo 18.19 4.32
38 vulkaninfo 1.13 1.14
4 vulkani:disk$0 0.12 0.12
6 glxinfo:gdrv0 0.09 0.08
6 glxinfo:gl0 0.09 0.08
6 php 0.08 0.10
2 llvmpipe-0 0.06 0.06
2 llvmpipe-1 0.06 0.06
2 llvmpipe-10 0.06 0.06
2 llvmpipe-11 0.06 0.06
2 llvmpipe-12 0.06 0.06
2 llvmpipe-13 0.06 0.06
2 llvmpipe-14 0.06 0.06
2 llvmpipe-15 0.06 0.06
2 llvmpipe-2 0.06 0.06
2 llvmpipe-3 0.06 0.06
2 llvmpipe-4 0.06 0.06
2 llvmpipe-5 0.06 0.06
2 llvmpipe-6 0.06 0.06
2 llvmpipe-7 0.06 0.06
2 llvmpipe-8 0.06 0.06
2 llvmpipe-9 0.06 0.06
6 clang 0.06 0.05
2 glxinfo 0.05 0.04
2 glxinfo:cs0 0.05 0.04
2 glxinfo:disk$0 0.05 0.04
2 glxinfo:sh0 0.05 0.04
2 glxinfo:shlo0 0.05 0.04
3 rocminfo 0.03 0.00
1 lspci 0.00 0.02
1 ps 0.00 0.01
81 sh 0.00 0.00
12 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 asmfish 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 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 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 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 look as follows
574325) asmfish cpu=11 start=5.60 finish=153.30
574326) asmfish cpu=4 start=5.61 finish=5.61
574327) asmFishL_2018-0 cpu=7 start=5.61 finish=153.30
574328) asmFishL_2018-0 cpu=10 start=5.65 finish=153.20
574329) asmFishL_2018-0 cpu=4 start=5.66 finish=153.20
574330) asmFishL_2018-0 cpu=13 start=5.66 finish=153.20
574331) asmFishL_2018-0 cpu=14 start=5.66 finish=153.20
574332) asmFishL_2018-0 cpu=0 start=5.66 finish=153.20
574333) asmFishL_2018-0 cpu=9 start=5.66 finish=153.20
574334) asmFishL_2018-0 cpu=11 start=5.66 finish=153.20
574335) asmFishL_2018-0 cpu=15 start=5.66 finish=153.20
574336) asmFishL_2018-0 cpu=6 start=5.66 finish=153.20
574337) asmFishL_2018-0 cpu=12 start=5.66 finish=153.20
574338) asmFishL_2018-0 cpu=6 start=5.66 finish=153.20
574339) asmFishL_2018-0 cpu=8 start=5.66 finish=153.20
574340) asmFishL_2018-0 cpu=1 start=5.66 finish=153.20
574341) asmFishL_2018-0 cpu=3 start=5.66 finish=153.20
574342) asmFishL_2018-0 cpu=2 start=5.66 finish=153.20
574343) asmFishL_2018-0 cpu=5 start=5.66 finish=153.20