A set of memory and CPU tests. This has first a memory test and then a CPU test. The memory test comes first and the CPU test takes most of the time.
Topdown profile shows the CPU test is backend bound.
AMD metrics show this as floating point code with backend stalls being more CPU than memory. There is a low L2 rate as most accesses fit in L1.
elapsed 318.150
on_cpu 0.893 # 14.29 / 16 cores
utime 4546.117
stime 1.176
nvcsw 2211 # 4.70%
nivcsw 44878 # 95.30%
inblock 0 # 0.00/sec
onblock 12984 # 40.81/sec
cpu-clock 4547529047867 # 4547.529 seconds
task-clock 4547548645723 # 4547.549 seconds
page faults 150869 # 33.176/sec
context switches 48496 # 10.664/sec
cpu migrations 330 # 0.073/sec
major page faults 2 # 0.000/sec
minor page faults 150867 # 33.175/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 4509035218056 # 275.955 branches per 1000 inst
branch misses 41052746888 # 0.91% branch miss
conditional 4434057385448 # 271.366 conditional branches per 1000 inst
indirect 3650964459 # 0.223 indirect branches per 1000 inst
cpu-cycles 20286644922558 # 3.98 GHz
instructions 16333686165655 # 0.81 IPC
slots 40583276052510 #
retiring 5952640163865 # 14.7% (25.0%)
-- ucode 574233522 # 0.0%
-- fastpath 5952065930343 # 14.7%
frontend 2295572979168 # 5.7% ( 9.6%)
-- latency 1541791413666 # 3.8%
-- bandwidth 753781565502 # 1.9%
backend 14623772638291 # 36.0% (61.4%)
-- cpu 13029400704166 # 32.1%
-- memory 1594371934125 # 3.9%
speculation 933970984068 # 2.3% ( 3.9%)
-- branch mispredict 933670914512 # 2.3%
-- pipeline restart 300069556 # 0.0%
smt-contention 16777253299166 # 41.3% ( 0.0%)
cpu-cycles 20277214461736 # 3.98 GHz
instructions 16319112563208 # 0.80 IPC
instructions 5442464918288 # 0.878 l2 access per 1000 inst
l2 hit from l1 3479910387 # 49.31% l2 miss
l2 miss from l1 2191772908 #
l2 hit from l2 pf 1134041742 #
l3 hit from l2 pf 159382060 #
l3 miss from l2 pf 5055763 #
instructions 5432886320488 # 271.128 float per 1000 inst
float 512 49 # 0.000 AVX-512 per 1000 inst
float 256 596 # 0.000 AVX-256 per 1000 inst
float 128 1473007842843 # 271.128 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 0 # 0.000 scalar per 1000 inst
instructions 2671438 #
opcache 1001870 # 375.030 opcache per 1000 inst
opcache miss 539210 # 53.8% opcache miss rate
l1 dTLB miss 4934 # 1.847 L1 dTLB per 1000 inst
l2 dTLB miss 1021 # 0.382 L2 dTLB per 1000 inst
instructions 2700534 #
icache 1322141 # 489.585 icache per 1000 inst
icache miss 112458 # 8.5% icache miss rate
l1 iTLB miss 12 # 0.004 L1 iTLB per 1000 inst
l2 iTLB miss 0 # 0.000 L2 iTLB per 1000 inst
tlb flush 18 # 0.007 TLB flush per 1000 inst
Intel metrics
elapsed 323.157
on_cpu 0.893 # 14.28 / 16 cores
utime 4614.028
stime 0.661
nvcsw 2098 # 5.09%
nivcsw 39085 # 94.91%
inblock 2392 # 7.40/sec
onblock 1744 # 5.40/sec
cpu-clock 4614872820140 # 4614.873 seconds
task-clock 4614882380814 # 4614.882 seconds
page faults 140145 # 30.368/sec
context switches 42620 # 9.235/sec
cpu migrations 389 # 0.084/sec
major page faults 10 # 0.002/sec
minor page faults 140135 # 30.366/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 3592126070177 # 274.868 branches per 1000 inst
branch misses 31898610274 # 0.89% branch miss
conditional 3592126085473 # 274.868 conditional branches per 1000 inst
indirect 813197327537 # 62.225 indirect branches per 1000 inst
slots 25742466242486 #
retiring 6494217835209 # 25.2% (25.2%)
-- ucode 1982226024440 # 7.7%
-- fastpath 4511991810769 # 17.5%
frontend 7403793894969 # 28.8% (28.8%)
-- latency 4756534183752 # 18.5%
-- bandwidth 2647259711217 # 10.3%
backend 10302130934074 # 40.0% (40.0%)
-- cpu 8840040321069 # 34.3%
-- memory 1462090613005 # 5.7%
speculation 1564631639172 # 6.1% ( 6.1%)
-- branch mispredict 1564486375695 # 6.1%
-- pipeline restart 145263477 # 0.0%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 9023096818342 # 1.75 GHz
instructions 5280492351738 # 0.59 IPC low
l2 access 3639456597 # 0.731 l2 access per 1000 inst
l2 miss 3379895174 # 92.87% l2 miss
Process overview
458 processes
108 sysbench 77270.71 2.89
68 clinfo 18.20 4.42
38 vulkaninfo 1.11 1.15
4 vulkani:disk$0 0.12 0.13
6 glxinfo:gdrv0 0.08 0.05
6 glxinfo:gl0 0.08 0.05
6 php 0.07 0.07
2 llvmpipe-0 0.06 0.07
2 llvmpipe-1 0.06 0.07
2 llvmpipe-10 0.06 0.07
2 llvmpipe-11 0.06 0.07
2 llvmpipe-12 0.06 0.07
2 llvmpipe-13 0.06 0.07
2 llvmpipe-14 0.06 0.07
2 llvmpipe-15 0.06 0.07
2 llvmpipe-2 0.06 0.07
2 llvmpipe-3 0.06 0.07
2 llvmpipe-4 0.06 0.07
2 llvmpipe-5 0.06 0.07
2 llvmpipe-6 0.06 0.07
2 llvmpipe-7 0.06 0.07
2 llvmpipe-8 0.06 0.07
2 llvmpipe-9 0.06 0.07
2 glxinfo 0.06 0.04
6 clang 0.05 0.07
2 glxinfo:cs0 0.05 0.03
2 glxinfo:disk$0 0.05 0.03
2 glxinfo:shlo0 0.05 0.03
2 glxinfo:sh0 0.04 0.03
1 lspci 0.01 0.02
3 rocminfo 0.00 0.03
1 ps 0.00 0.01
84 sh 0.00 0.00
13 gcc 0.00 0.00
9 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
2 cc 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 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
Example computation blocks.
226573) sysbench cpu=13 start=5.50 finish=10.22
226574) sysbench cpu=4 start=5.50 finish=10.22
226575) sysbench cpu=6 start=5.50 finish=10.22
226576) sysbench cpu=7 start=5.50 finish=10.22
226577) sysbench cpu=1 start=5.50 finish=10.22
226578) sysbench cpu=2 start=5.50 finish=10.21
226579) sysbench cpu=15 start=5.50 finish=10.22
226580) sysbench cpu=13 start=5.50 finish=10.22
226581) sysbench cpu=11 start=5.50 finish=10.22
226582) sysbench cpu=5 start=5.50 finish=10.22
226583) sysbench cpu=4 start=5.50 finish=10.22
226584) sysbench cpu=10 start=5.50 finish=10.21
226585) sysbench cpu=8 start=5.50 finish=10.21
226586) sysbench cpu=3 start=5.50 finish=10.22
226587) sysbench cpu=12 start=5.50 finish=10.22
226588) sysbench cpu=0 start=5.50 finish=10.21
226589) sysbench cpu=14 start=5.50 finish=10.22
226590) sysbench cpu=9 start=5.50 finish=10.22