nginx PID is 19910
The value is 19 in
ps -eo prips -eo pid,ppid,ni,pri,psr,pcpu,stat,cmd |head -n1;ps -eo pid,ppid,ni,pri,psr,pcpu,stat,cmd |grep nginx PID PPID NI PRI PSR %CPU STAT CMD 19910 1 0 19 0 0.0 Ss nginx: master process /usr/sbin/nginx 19911 19910 0 19 2 0.0 S nginx: worker process 19912 19910 0 19 1 0.0 S nginx: worker process 19914 19910 0 19 1 0.0 S nginx: worker process 19915 19910 0 19 0 0.0 S nginx: worker processThe value is 80 in
ps -elfps -elf |head -n1;ps -elf |grep nginx F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD 5 S root 19910 1 0 80 0 - 21487 sigsus Jul29 ? 00:00:00 nginx: master process /usr/sbin/nginx 5 S www-data 19911 19910 0 80 0 - 21576 ep_pol Jul29 ? 00:01:55 nginx: worker process 5 S www-data 19912 19910 0 80 0 - 21576 ep_pol Jul29 ? 00:02:05 nginx: worker process 5 S www-data 19914 19910 0 80 0 - 21576 ep_pol Jul29 ? 00:02:00 nginx: worker process 5 S www-data 19915 19910 0 80 0 - 21576 ep_pol Jul29 ? 00:02:08 nginx: worker processThe value is 20 in
top -b -n 1 -ptop -b -n 1 -p 19910 top - 09:57:13 up 435 days, 19 min, 2 users, load average: 0.00, 0.00, 0.00 Tasks: 1 total, 0 running, 1 sleeping, 0 stopped, 0 zombie %Cpu(s): 0.1 us, 0.1 sy, 0.0 ni, 99.9 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 8175360 total, 4617480 used, 3557880 free, 167444 buffers KiB Swap: 8384508 total, 10408 used, 8374100 free. 3955108 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 19910 root 20 0 85948 2944 1784 S 0.0 0.0 0:00.00 nginx
My question is as follows:
- Why the output is totally different in two different
pscommand? - What's the difference of
PRIbetweenpsandtop?
I'll appreciate if anyone can explain it to me.
