A benchmark suite for php. This is a single-threaded benchmark with high IPC and high retirement rate. It also has a quick runtime.
Topdown profile has a mix reflecting both a composite of test cases and a quick run time.
AMD metrics pull the composite together. The backend stalls are low and retirement rate is high. There is little floating point and very little L2 activity.
elapsed 71.058
on_cpu 0.050 # 0.80 / 16 cores
utime 56.344
stime 0.783
nvcsw 1911 # 79.53%
nivcsw 492 # 20.47%
inblock 0 # 0.00/sec
onblock 12664 # 178.22/sec
cpu-clock 57153546668 # 57.154 seconds
task-clock 57156008472 # 57.156 seconds
page faults 152146 # 2661.942/sec
context switches 2589 # 45.297/sec
cpu migrations 259 # 4.531/sec
major page faults 2 # 0.035/sec
minor page faults 152144 # 2661.907/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 210271913729 # 233.593 branches per 1000 inst
branch misses 129614926 # 0.06% branch miss
conditional 138843502982 # 154.243 conditional branches per 1000 inst
indirect 24408622773 # 27.116 indirect branches per 1000 inst
cpu-cycles 263799618154 # 0.23 GHz
instructions 897798589716 # 3.40 IPC high
slots 530592307308 #
retiring 310571931604 # 58.5% (58.5%) high
-- ucode 613571138 # 0.1%
-- fastpath 309958360466 # 58.4%
frontend 124268320822 # 23.4% (23.4%)
-- latency 47912796564 # 9.0%
-- bandwidth 76355524258 # 14.4%
backend 92399776108 # 17.4% (17.4%) low
-- cpu 29006832602 # 5.5%
-- memory 63392943506 # 11.9%
speculation 3324389886 # 0.6% ( 0.6%) low
-- branch mispredict 2738626655 # 0.5%
-- pipeline restart 585763231 # 0.1%
smt-contention 27626792 # 0.0% ( 0.0%)
cpu-cycles 262509222435 # 0.23 GHz
instructions 897889576573 # 3.42 IPC high
instructions 300467635471 # 0.605 l2 access per 1000 inst
l2 hit from l1 165756174 # 11.90% l2 miss
l2 miss from l1 12538980 #
l2 hit from l2 pf 6994982 #
l3 hit from l2 pf 3800174 #
l3 miss from l2 pf 5293291 #
instructions 299818977094 # 10.487 float per 1000 inst
float 512 60 # 0.000 AVX-512 per 1000 inst
float 256 598 # 0.000 AVX-256 per 1000 inst
float 128 3144180834 # 10.487 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 70.915
on_cpu 0.050 # 0.81 / 16 cores
utime 56.850
stime 0.390
nvcsw 1923 # 86.54%
nivcsw 299 # 13.46%
inblock 528 # 7.45/sec
onblock 1320 # 18.61/sec
cpu-clock 57246343179 # 57.246 seconds
task-clock 57248725490 # 57.249 seconds
page faults 140758 # 2458.710/sec
context switches 2407 # 42.045/sec
cpu migrations 234 # 4.087/sec
major page faults 1 # 0.017/sec
minor page faults 140757 # 2458.692/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 209215212501 # 233.093 branches per 1000 inst
branch misses 162111365 # 0.08% branch miss
conditional 209215224373 # 233.093 conditional branches per 1000 inst
indirect 24410487087 # 27.196 indirect branches per 1000 inst
slots 1300410734558 #
retiring 855226039903 # 65.8% (65.8%) high
-- ucode 34148079744 # 2.6%
-- fastpath 821077960159 # 63.1%
frontend 205397653770 # 15.8% (15.8%)
-- latency 33351327421 # 2.6%
-- bandwidth 172046326349 # 13.2%
backend 191999086162 # 14.8% (14.8%) low
-- cpu 136406269561 # 10.5%
-- memory 55592816601 # 4.3%
speculation 50305389684 # 3.9% ( 3.9%)
-- branch mispredict 39658080026 # 3.0%
-- pipeline restart 10647309658 # 0.8%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 217229804759 # 0.19 GHz
instructions 897737088274 # 4.13 IPC high
l2 access 276376768 # 0.308 l2 access per 1000 inst
l2 miss 86888248 # 31.44% l2 miss
Process overview is straightforward with several invocations of php
351 processes
9 php 56.09 0.09
68 clinfo 17.20 5.99
38 vulkaninfo 1.33 0.95
6 glxinfo:gdrv0 0.15 0.01
6 glxinfo:gl0 0.15 0.01
4 vulkani:disk$0 0.14 0.10
2 llvmpipe-0 0.07 0.05
2 llvmpipe-1 0.07 0.05
2 llvmpipe-10 0.07 0.05
2 llvmpipe-11 0.07 0.05
2 llvmpipe-12 0.07 0.05
2 llvmpipe-13 0.07 0.05
2 llvmpipe-14 0.07 0.05
2 llvmpipe-15 0.07 0.05
2 llvmpipe-2 0.07 0.05
2 llvmpipe-3 0.07 0.05
2 llvmpipe-4 0.07 0.05
2 llvmpipe-5 0.07 0.05
2 llvmpipe-6 0.07 0.05
2 llvmpipe-7 0.07 0.05
2 llvmpipe-8 0.07 0.05
2 llvmpipe-9 0.07 0.05
2 glxinfo 0.07 0.01
2 glxinfo:cs0 0.07 0.01
2 glxinfo:disk$0 0.07 0.01
2 glxinfo:sh0 0.07 0.01
2 glxinfo:shlo0 0.07 0.01
6 clang 0.04 0.08
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
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
3 phpbench 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 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
The computation pieces
1620429) phpbench cpu=8 start=5.73 finish=24.44
1620430) php cpu=2 start=5.74 finish=24.44
1620433) phpbench cpu=13 start=28.45 finish=46.71
1620434) php cpu=6 start=28.45 finish=46.71
1620435) phpbench cpu=5 start=50.71 finish=69.82
1620436) php cpu=14 start=50.71 finish=69.82