# inxi
CPU: dual core Intel Pentium Gold 7505 (-MT MCP-)
speed/min/max: 1173/400/3500 MHz Kernel: 5.10.205-std-def-alt1 x86_64
Up: 7h 55m Mem: 3.45/7.41 GiB (46.6%) Storage: 476.94 GiB (27.6% used)
Procs: 247 Shell: Bash inxi: 3.3.31

#  free -h
               total        used        free      shared  buff/cache   available
Mem:           7,4Gi       2,3Gi       2,7Gi       859Mi       2,3Gi       4,0Gi
Swap:          7,8Gi       2,7Gi       5,1Gi

# time memtester 100 1
memtester version 4.5.1 (64-bit)
Copyright (C) 2001-2020 Charles Cazabon.
Licensed under the GNU General Public License version 2 (only).

pagesize is 4096
pagesizemask is 0xfffffffffffff000
want 100MB (104857600 bytes)
got  100MB (104857600 bytes), trying mlock ...locked.
Loop 1/1:
  Stuck Address       : ok
  Random Value        : ok
  Compare XOR         : ok
  Compare SUB         : ok
  Compare MUL         : ok
  Compare DIV         : ok
  Compare OR          : ok
  Compare AND         : ok
  Sequential Increment: ok
  Solid Bits          : ok
  Block Sequential    : ok
  Checkerboard        : ok
  Bit Spread          : ok
  Bit Flip            : ok
  Walking Ones        : ok
  Walking Zeroes      : ok
  8-bit Writes        : ok
  16-bit Writes       : ok

Done.
23.99user 0.11system 0:24.10elapsed 99%CPU (0avgtext+0avgdata 103916maxresident)k
0inputs+0outputs (0major+636minor)pagefaults 0swaps

# stress-ng --cpu 2 --cpu-method matrixprod --metrics --timeout 60
stress-ng: info:  [6729] setting to a 60 second run per stressor
stress-ng: info:  [6729] dispatching hogs: 2 cpu
stress-ng: info:  [6729] successful run completed in 22.85s
stress-ng: info:  [6729] stressor       bogo ops real time  usr time  sys time   bogo ops/s     bogo ops/s CPU used per
stress-ng: info:  [6729]                           (secs)    (secs)    (secs)   (real time) (usr+sys time) instance (%)
stress-ng: info:  [6729] cpu               17480     22.85     45.58      0.08       765.11         382.83        99.93