This is a software-defined radio signal processing library. There are 15 workloads trying variations including how many threads are started, apparent in the progression below.
Topdown metrics show a low overall amount of frontend stalls, though it also looks like they are peppered in periodically at higher level. Otherwise backend stalls tend to be the largest contributor.
AMD metrics show a moderate number of indirect branches as percentage of overall branches and lower L2 access.
elapsed 1697.119
on_cpu 0.326 # 5.22 / 16 cores
utime 8856.685
stime 1.784
nvcsw 16842 # 25.40%
nivcsw 49461 # 74.60%
inblock 8 # 0.00/sec
onblock 17368 # 10.23/sec
cpu-clock 8859043109277 # 8859.043 seconds
task-clock 8859086569027 # 8859.087 seconds
page faults 189820 # 21.427/sec
context switches 74498 # 8.409/sec
cpu migrations 2162 # 0.244/sec
major page faults 2 # 0.000/sec
minor page faults 189818 # 21.426/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 8939620743102 # 146.505 branches per 1000 inst
branch misses 4916139852 # 0.05% branch miss
conditional 4087186678285 # 66.982 conditional branches per 1000 inst
indirect 1816700409580 # 29.773 indirect branches per 1000 inst
cpu-cycles 43906190865863 # 1.12 GHz
instructions 77386138698388 # 1.76 IPC
slots 87820253971404 #
retiring 26966840935029 # 30.7% (34.3%)
-- ucode 60406107 # 0.0%
-- fastpath 26966780528922 # 30.7%
frontend 655509839567 # 0.7% ( 0.8%)
-- latency 442054892988 # 0.5%
-- bandwidth 213454946579 # 0.2%
backend 50285143305180 # 57.3% (64.0%)
-- cpu 24928897941717 # 28.4%
-- memory 25356245363463 # 28.9%
speculation 720398682627 # 0.8% ( 0.9%)
-- branch mispredict 395658212360 # 0.5%
-- pipeline restart 324740470267 # 0.4%
smt-contention 9192280268536 # 10.5% ( 0.0%)
cpu-cycles 35561747977725 # 1.37 GHz
instructions 56362778341513 # 1.58 IPC
instructions 18791619171629 # 2.312 l2 access per 1000 inst
l2 hit from l1 32872153754 # 6.47% l2 miss
l2 miss from l1 2333406782 #
l2 hit from l2 pf 10093658356 #
l3 hit from l2 pf 471559932 #
l3 miss from l2 pf 5473831 #
instructions 18779521772018 # 176.946 float per 1000 inst
float 512 95 # 0.000 AVX-512 per 1000 inst
float 256 184530991347 # 9.826 AVX-256 per 1000 inst
float 128 3138425566159 # 167.120 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 2101.806
on_cpu 0.449 # 7.18 / 16 cores
utime 15099.025
stime 1.385
nvcsw 20978 # 15.89%
nivcsw 111064 # 84.11%
inblock 19432 # 9.25/sec
onblock 6256 # 2.98/sec
cpu-clock 15101217180305 # 15101.217 seconds
task-clock 15101261875302 # 15101.262 seconds
page faults 180657 # 11.963/sec
context switches 142233 # 9.419/sec
cpu migrations 3874 # 0.257/sec
major page faults 116 # 0.008/sec
minor page faults 180541 # 11.955/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 14706391828425 # 142.843 branches per 1000 inst
branch misses 14208269354 # 0.10% branch miss
conditional 14706391860937 # 142.843 conditional branches per 1000 inst
indirect 6299830739447 # 61.190 indirect branches per 1000 inst
slots 115697040400052 #
retiring 69201998292968 # 59.8% (59.8%)
-- ucode 8257132014881 # 7.1%
-- fastpath 60944866278087 # 52.7%
frontend 18277382966992 # 15.8% (15.8%)
-- latency 9902669823664 # 8.6%
-- bandwidth 8374713143328 # 7.2%
backend 27497778361275 # 23.8% (23.8%)
-- cpu 19048599236733 # 16.5%
-- memory 8449179124542 # 7.3%
speculation 749205159374 # 0.6% ( 0.6%)
-- branch mispredict 571390197369 # 0.5%
-- pipeline restart 177814962005 # 0.2%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 27865924741031 # 0.84 GHz
instructions 65644794602005 # 2.36 IPC
l2 access 4235697429 # 0.065 l2 access per 1000 inst
l2 miss 3330682985 # 78.63% l2 miss
Process overview shows benchmark_threa is the primary resource user.
796 processes
366 benchmark_threa 102837.37 3.75
68 clinfo 16.20 6.66
38 vulkaninfo 1.14 1.14
6 php 0.15 0.48
6 glxinfo:gdrv0 0.15 0.07
4 vulkani:disk$0 0.12 0.12
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
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 0.03 0.09
3 rocminfo 0.00 0.03
1 lspci 0.00 0.02
110 sh 0.00 0.00
60 liquid-dsp 0.00 0.00
13 gcc 0.00 0.00
8 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 gmain 0.00 0.00
5 phoronix-test-s 0.00 0.00
3 dconf worker 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 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
Computation blocks
255011) liquid-dsp cpu=5 start=5.85 finish=35.89
255012) benchmark_threa cpu=5 start=5.86 finish=35.89
255013) benchmark_threa cpu=6 start=5.86 finish=35.89
255018) liquid-dsp cpu=12 start=39.89 finish=69.93
255019) benchmark_threa cpu=5 start=39.90 finish=69.93
255020) benchmark_threa cpu=14 start=39.90 finish=69.93
255022) liquid-dsp cpu=4 start=73.94 finish=103.97
255023) benchmark_threa cpu=5 start=73.94 finish=103.97
255024) benchmark_threa cpu=14 start=73.94 finish=103.97
255025) sh cpu=11 start=103.97 finish=103.97
255026) sh cpu=5 start=103.97 finish=103.97
255027) liquid-dsp cpu=0 start=114.16 finish=144.20
255028) benchmark_threa cpu=1 start=114.16 finish=144.20
255029) benchmark_threa cpu=11 start=114.17 finish=144.20
255030) liquid-dsp cpu=8 start=148.20 finish=178.24
255031) benchmark_threa cpu=8 start=148.20 finish=178.24
255032) benchmark_threa cpu=3 start=148.21 finish=178.24
255033) liquid-dsp cpu=8 start=182.24 finish=212.28
255034) benchmark_threa cpu=1 start=182.25 finish=212.28
255035) benchmark_threa cpu=3 start=182.25 finish=212.28
255036) liquid-dsp cpu=8 start=216.28 finish=246.32
255037) benchmark_threa cpu=1 start=216.28 finish=246.32
255038) benchmark_threa cpu=3 start=216.29 finish=246.32
255042) liquid-dsp cpu=8 start=250.32 finish=280.36
255043) benchmark_threa cpu=1 start=250.32 finish=280.36
255044) benchmark_threa cpu=11 start=250.33 finish=280.36
255075) liquid-dsp cpu=8 start=284.36 finish=314.40
255076) benchmark_threa cpu=1 start=284.37 finish=314.40
255077) benchmark_threa cpu=3 start=284.37 finish=314.40
255078) sh cpu=5 start=314.40 finish=314.40
255079) sh cpu=14 start=314.40 finish=314.40
255080) liquid-dsp cpu=5 start=324.68 finish=354.79
255081) benchmark_threa cpu=14 start=324.68 finish=354.79
255082) benchmark_threa cpu=0 start=324.69 finish=354.79
255083) benchmark_threa cpu=1 start=324.69 finish=354.79
255084) liquid-dsp cpu=11 start=358.79 finish=388.86
255085) benchmark_threa cpu=5 start=358.80 finish=388.86
255086) benchmark_threa cpu=14 start=358.80 finish=388.86
255087) benchmark_threa cpu=15 start=358.80 finish=388.86
255088) liquid-dsp cpu=0 start=392.86 finish=422.93
255089) benchmark_threa cpu=9 start=392.86 finish=422.93
255090) benchmark_threa cpu=11 start=392.87 finish=422.93
255091) benchmark_threa cpu=4 start=392.87 finish=422.93
255092) sh cpu=0 start=422.93 finish=422.93
255093) sh cpu=9 start=422.93 finish=422.93