Various file system operations to simulate a server responding to blog type requests. There is a regular pattern of many processes running.
Topdown profile shows 1/5 instructions are branches and a high frontend stall rate and low IPC. Interesting progression as the benchmark proceeds.
AMD metrics
elapsed 1079.623
on_cpu 0.775 # 12.40 / 16 cores
utime 626.479
stime 12757.518
nvcsw 73243125 # 83.01%
nivcsw 14993431 # 16.99%
inblock 2959912896 # 2741618.10/sec
onblock 459798480 # 425888.15/sec
cpu-clock 13419582557960 # 13419.583 seconds
task-clock 13423723045113 # 13423.723 seconds
page faults 154186 # 11.486/sec
context switches 88241810 # 6573.572/sec
cpu migrations 735112 # 54.762/sec
major page faults 1184 # 0.088/sec
minor page faults 153002 # 11.398/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 4970850530952 # 204.072 branches per 1000 inst
branch misses 538477710845 # 10.83% branch miss
conditional 2623040629198 # 107.686 conditional branches per 1000 inst
indirect 37891337710 # 1.556 indirect branches per 1000 inst
cpu-cycles 55221583370294 # 3.19 GHz
instructions 24271910195888 # 0.44 IPC low
slots 110237354811972 #
retiring 9825952528094 # 8.9% ( 9.9%) low
-- ucode 74437066062 # 0.1%
-- fastpath 9751515462032 # 8.8%
frontend 54710145602163 # 49.6% (55.1%) high
-- latency 40378446965442 # 36.6%
-- bandwidth 14331698636721 # 13.0%
backend 34371309469125 # 31.2% (34.6%)
-- cpu 6359112678567 # 5.8%
-- memory 28012196790558 # 25.4%
speculation 334336833030 # 0.3% ( 0.3%) low
-- branch mispredict 333511069585 # 0.3%
-- pipeline restart 825763445 # 0.0%
smt-contention 10994435584774 # 10.0% ( 0.0%)
cpu-cycles 55148842595156 # 3.18 GHz
instructions 24193263117001 # 0.44 IPC low
instructions 8039343498228 # 115.461 l2 access per 1000 inst
l2 hit from l1 714674602559 # 26.40% l2 miss
l2 miss from l1 102585058942 #
l2 hit from l2 pf 71109015126 #
l3 hit from l2 pf 73790816609 #
l3 miss from l2 pf 68659563010 #
instructions 8036663877975 # 15.899 float per 1000 inst
float 512 60 # 0.000 AVX-512 per 1000 inst
float 256 638 # 0.000 AVX-256 per 1000 inst
float 128 127776369542 # 15.899 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 0 # 0.000 scalar per 1000 inst
This program is too large to fit on my Intel PC with 16 GB of memory. It dies ~two and a half minutes after starting and syslog has an indication of out of memory error
Jan 31 05:19:23 hobart systemd[1483]: vte-spawn-b19b7cc3-12af-4ccb-a307-5a8207114d9f.scope: systemd-oomd killed 120 process(es) in this unit.
Jan 31 05:19:23 hobart systemd[1483]: vte-spawn-b19b7cc3-12af-4ccb-a307-5a8207114d9f.scope: Consumed 23min 48.045s CPU time.
Process overview
1034 processes
666 blogbench 121278.09 2560639.54
68 clinfo 18.85 13.69
12 rm 11.37 461.20
38 vulkaninfo 1.15 2.28
6 php 0.18 0.68
4 vulkani:disk$0 0.13 0.24
6 glxinfo:gdrv0 0.10 0.10
6 glxinfo:gl0 0.10 0.10
2 llvmpipe-0 0.07 0.12
2 llvmpipe-1 0.07 0.12
2 llvmpipe-10 0.07 0.12
2 llvmpipe-11 0.07 0.12
2 llvmpipe-12 0.07 0.12
2 llvmpipe-13 0.07 0.12
2 llvmpipe-14 0.07 0.12
2 llvmpipe-15 0.07 0.12
2 llvmpipe-2 0.07 0.12
2 llvmpipe-3 0.07 0.12
2 llvmpipe-4 0.07 0.12
2 llvmpipe-5 0.07 0.12
2 llvmpipe-6 0.07 0.12
2 llvmpipe-7 0.07 0.12
2 llvmpipe-8 0.07 0.12
2 llvmpipe-9 0.07 0.12
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
6 clang 0.04 0.08
3 rocminfo 0.03 0.00
1 lspci 0.00 0.03
1 ps 0.00 0.01
83 sh 0.00 0.00
13 gcc 0.00 0.00
12 gsettings 0.00 0.00
9 stat 0.00 0.00
8 systemd-detect- 0.00 0.00
6 llvm-link 0.00 0.00
6 mkdir 0.00 0.00
5 phoronix-test-s 0.00 0.00
4 gmain 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 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
120 maximum processes