[krystian_jablonski@210201 ttyid:0 pon maj 22 18:31:03 ~]$ su
c[root@210201 ttyid:0 pon maj 22 18:31:20 krystian_jablonski]# chcpu -d 1
CPU 1 wyłączony
[root@210201 ttyid:0 pon maj 22 18:31:26 krystian_jablonski]# exit
exit

[[krystian_jablonski@210201 ttyid:0 pon maj 22 18:31:27 ~]$ lscpu | head -n 6
Architektura:          x86_64
Tryb(y) pracy CPU:     32-bit, 64-bit
Kolejność bajtów:   Little Endian
CPU:                   2
Lista aktywnych CPU:   0
Lista nieaktywnych CPU:1

[root@210201 ttyid:1 pon maj 22 18:35:44 krystian_jablonski]# perf sched record

[root@210201 ttyid:0 pon maj 22 18:35:09 krystian_jablonski]# chrt -i 0 ./first & chrt -f 1 ./second &

[root@210201 ttyid:2 pon maj 22 18:38:24 krystian_jablonski]# ps -o pid,policy,rtprio,time,pcpu,stime,etime,cmd -p $(pidof first) -p $(pidof second)
  PID POL RTPRIO     TIME %CPU STIME     ELAPSED CMD
 2032 IDL      0 00:00:09 10.3 18:37       01:29 ./first
 2033 FF       1 00:00:01  1.9 18:37       01:29 ./second

^C[ perf record: Woken up 913 times to write data ]
Warning:
Processed 16061291 events and lost 2 chunks!

Check IO/CPU overload!

[ perf record: Captured and wrote 1825.786 MB perf.data (16055247 samples) ]

[root@210201 ttyid:1 pon maj 22 18:41:48 krystian_jablonski]# perf sched latency | grep "first\|second"
Warning:
Processed 16061291 events and lost 2 chunks!

Check IO/CPU overload!

  first:2096            |   7940.346 ms |     3269 | avg:    1.287 ms | max:   78.358 ms | max at:    754.484304 s
  second:2097           |      0.896 ms |     5932 | avg:    0.003 ms | max:    4.066 ms | max at:    766.600815 s

[root@210201 ttyid:1 pon maj 22 18:48:18 krystian_jablonski]# perf sched record

[root@210201 ttyid:0 pon maj 22 18:47:43 krystian_jablonski]# chrt -r 99 ./first & chrt -f 99 ./second &

[root@210201 ttyid:2 pon maj 22 18:51:06 krystian_jablonski]# ps -o pid,policy,rtprio,cputime,pcpu,stime,etime,cmd -p $(pidof first) -p $(pidof second)
  PID POL RTPRIO     TIME %CPU STIME     ELAPSED CMD
 2524 RR      99 00:00:02  1.3 18:48       02:48 ./first
 2525 FF      99 00:00:02  1.2 18:48       02:48 ./second

^C[ perf record: Woken up 27 times to write data ]
[ perf record: Captured and wrote 54.009 MB perf.data (480917 samples) ]

[root@210201 ttyid:1 pon maj 22 18:51:16 krystian_jablonski]# perf sched latency | grep "first\|second"
  first:2524            |      0.000 ms |    14798 | avg:    0.014 ms | max:    5.456 ms | max at:   1356.232586 s
  second:2525           |      0.724 ms |    14800 | avg:    0.013 ms | max:    4.857 ms | max at:   1331.846158 s