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20 hours ago •
Atoptool
Atoptool
Offline CPUs not handled well.
Eg with some CPUs offline (note cpu0 is always online):
# ls /sys/devices/system/cpu/cpu*/online | sort -V | xargs -l1 -t cat
cat /sys/devices/system/cpu/cpu1/online
0
cat /sys/devices/system/cpu/cpu2/online
0
cat /sys/devices/system/cpu/cpu3/online
0
cat /sys/devices/system/cpu/cpu4/online
0
cat /sys/devices/system/cpu/cpu5/online
0
cat /sys/devices/system/cpu/cpu6/online
0
cat /sys/devices/system/cpu/cpu7/online
0
cat /sys/devices/system/cpu/cpu8/online
0
cat /sys/devices/system/cpu/cpu9/online
0
cat /sys/devices/system/cpu/cpu10/online
0
cat /sys/devices/system/cpu/cpu11/online
0
cat /sys/devices/system/cpu/cpu12/online
0
cat /sys/devices/system/cpu/cpu13/online
0
cat /sys/devices/system/cpu/cpu14/online
0
cat /sys/devices/system/cpu/cpu15/online
0
cat /sys/devices/system/cpu/cpu16/online
1
cat /sys/devices/system/cpu/cpu17/online
1
cat /sys/devices/system/cpu/cpu18/online
1
cat /sys/devices/system/cpu/cpu19/online
1
cat /sys/devices/system/cpu/cpu20/online
1
cat /sys/devices/system/cpu/cpu21/online
1
cat /sys/devices/system/cpu/cpu22/online
1
cat /sys/devices/system/cpu/cpu23/online
1
So CPU 0 and 16-23 are online, 9 cpus.
Runing atop -w atop.raw 1 to log for a bit and then looking at log:
atop -PPRC,ALL -r atop.raw | grep ^cpu | head -n 20
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 0 12944 16380 2868 3488371 562 0 172 0 0 800 100 0 0
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 1 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 2 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 3 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 4 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 5 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 6 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 7 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344973 2023/05/17 10:36:13 35280 100 8 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 0 2 1 0 97 0 0 0 0 0 800 100 110307360 46006462
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 1 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 2 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 3 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 4 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 5 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 6 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 7 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344974 2023/05/17 10:36:14 1 100 8 0 0 0 0 0 0 0 0 0 0 100 0 0
cpu ncl-119 1684344975 2023/05/17 10:36:15 1 100 0 1 3 0 96 0 0 0 0 0 800 100 204152252 77791620
cpu ncl-119 1684344975 2023/05/17 10:36:15 1 100 1 0 0 0 0 0 0 0 0 0 0 100 0 0
Now it shows info about 9 CPUs... but CPU0-8, not CPU0,16-23. And with 1-8 offline, its all 0s.
And to note, eg PRC's current CPU column works correctly and will often has 16-23. The interactive view is also affected, eg this is with 'fixed' output, or whatever its called when you hit 'f'.. can see for CPU user is 804%.. but all the CPUs it shows are offline CPUs and 0%s.. and oddly get named cpu000.
ATOP - ncl-119 2023/05/17 10:58:53 --f-------------- 1s elapsed
PRC | sys 0.21s | user 7.10s | | | #proc 382 | #trun 11 | #tslpi 264 | #tslpu 171 | #zombie 0 | clones 0 | | | #exit 0 |
CPU | sys 20% | user 804% | irq 0% | | idle 77% | wait 0% | steal 0% | | guest 0% | | ipc 2.16 | cycl 27MHz | curf 88MHz |
cpu | sys 0% | user 0% | irq 0% | | idle 0% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 0.00 | cycl 0MHz | ? |
cpu | sys 0% | user 0% | irq 0% | | idle 0% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 0.00 | cycl 0MHz | ? |
cpu | sys 0% | user 0% | irq 0% | | idle 0% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 0.00 | cycl 0MHz | ? |
cpu | sys 0% | user 0% | irq 0% | | idle 0% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 0.00 | cycl 0MHz | ? |
cpu | sys 0% | user 0% | irq 0% | | idle 0% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 0.00 | cycl 0MHz | ? |
cpu | sys 0% | user 0% | irq 0% | | idle 0% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 0.00 | cycl 0MHz | ? |
cpu | sys 0% | user 0% | irq 0% | | idle 0% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 0.00 | cycl 0MHz | ? |
cpu | sys 0% | user 0% | irq 0% | | idle 0% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 0.00 | cycl 0MHz | ? |
cpu | sys 8% | user 3% | irq 0% | | idle 89% | cpu000 w 0% | steal 0% | | guest 0% | | ipc 2.16 | cycl 246MHz | curf 799MHz |
CPL | avg1 1.50 | | avg5 1.11 | avg15 0.85 | | | csw 21965 | | intr 11216 | | | numcpu 9 | |
MEM | tot 31.1G | free 3.8G | cache 24.5G | dirty 2.3G | buff 524.1M | slab 900.4M | slrec 660.9M | shmem 6.4M | shrss 0.0M | shswp 0.0M | | | numnode 1 |
SWP | tot 2.0G | | free 2.0G | swcac 0.4M | | | | | | | vmcom 2.5G | vmlim 17.5G | |
PAG | scan 0 | steal 0 | stall 0 | compact 0 | numamig 0 | migrate 0 | | | | | swin 0 | swout 0 | oomkill 0 |
PSI | cpusome 38% | memsome 0% | memfull 0% | | iosome 0% | iofull 0% | cs 5/1/2 | ms 0/0/0 | mf 0/0/0 | is 0/0/0 | | if 0/0/0 | |
DSK | nvme0n1 | busy 0% | read 0 | write 2 | discrd 0 | KiB/r 0 | KiB/w 56 | | KiB/d 0 | MBr/s 0.0 | MBw/s 0.1 | avq 0.25 | avio 2.00 ms |
(edit: formatting)
