Interrupts
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sar -I ALL
(not activated by default, see/etc/sysstat/sysstat
)vmstat -s
irqstat
watch cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3 1: 0 0 9 0 IO-APIC 1-edge i8042 6: 3 0 0 0 IO-APIC 6-edge floppy 8: 0 0 0 0 IO-APIC 8-edge rtc0 9: 0 0 0 0 IO-APIC 9-fasteoi acpi 10: 0 0 0 0 IO-APIC 10-fasteoi ehci_hcd:usb1, uhci_hcd:usb2 11: 0 22125 0 0 IO-APIC 11-fasteoi virtio1, uhci_hcd:usb3, uhci_hcd:usb4, qxl 12: 0 144 0 0 IO-APIC 12-edge i8042 14: 6657156 0 7289 0 IO-APIC 14-edge ata_piix 15: 0 10221279 6694177 4977 IO-APIC 15-edge ata_piix 24: 0 0 0 0 PCI-MSI 49152-edge virtio0-config 25: 0 0 485005 0 PCI-MSI 49153-edge virtio0-input.0 26: 0 7 0 2 PCI-MSI 49154-edge virtio0-output.0 27: 91 0 0 0 PCI-MSI 65536-edge snd_hda_intel:card0 NMI: 0 0 0 0 Non-maskable interrupts LOC: 104440170 104248245 104039837 105393358 Local timer interrupts SPU: 0 0 0 0 Spurious interrupts PMI: 0 0 0 0 Performance monitoring interrupts IWI: 0 0 0 0 IRQ work interrupts RTR: 0 0 0 0 APIC ICR read retries RES: 52557650 51011995 50957024 52508445 Rescheduling interrupts CAL: 5609651 5124830 6201466 7524164 Function call interrupts TLB: 2115360 1905026 1871874 2112061 TLB shootdowns TRM: 0 0 0 0 Thermal event interrupts THR: 0 0 0 0 Threshold APIC interrupts DFR: 0 0 0 0 Deferred Error APIC interrupts MCE: 0 0 0 0 Machine check exceptions MCP: 226 226 226 226 Machine check polls HYP: 0 0 0 0 Hypervisor callback interrupts ERR: 0 MIS: 0 PIN: 0 0 0 0 Posted-interrupt notification event NPI: 0 0 0 0 Nested posted-interrupt event PIW: 0 0 0 0 Posted-interrupt wakeup event
May 19 16:30:24 SERVER kernel: perf: interrupt took too long (4082 > 4051), lowering kernel.perf_event_max_sample_rate to 49000
Sep 29 15:50:02 SERVER kernel: ata1: lost interrupt (Status 0x58)
Related[edit]
See also[edit]
sar
, installation, sar -A,sar -F, sar -d
,sar -I ALL
,sar -n NFS
,sar -r
,sar -S
,sar -W
,sar -n ALL
, Installing sysstat using Ansible,/etc/sysstat/sysstat
,/etc/cron.d/sysstat
,sar --help
, Sysstat changelog,/var/log/sysstat/
,cpu time steal
, sargraph, isag, Telegraf- Process, zombie process, fork, thread:
ps
,tree
,pstree
,ps axf
,proc
,pwdx
,which
,watch
,sar -q
,tload
,uptime
, Interrupts,pgrep
,tasklist
(Windows), Zombie process,pstack
,docker ps
,docker-compose ps
,jobs
,acct
,process mrelease
,pidstat
, IPC,pidof
ksoftirqd
- interrupts,
/proc/interrupts
- FHS,
/proc/
,/proc/net/
,/boot/
,/run/
,/dev/
,/usr/
,/var/run/
,/etc/
,/var/
,/var/lib/
/var/log/
,/var/www/
,/opt/
,/lib/
,/sys/
,/proc/kcore
,/proc/sys/, /proc/sys/vm/
,/snap/
,/mnt/
,/mnt/data
,/var/opt/, /usr/bin/
,/lib/, /proc/$PID/, /proc/self/
- CPU, GPU, NPU, TPU, DPU, Groq, Proliant, thread (
Pthreads
), processor, CPU socket, core, ARM , CPU Virtualization, Intel, AMD,nm
,lscpu
, AVX-512, Passthrough, CPU intensive, Graviton processor, Branch predictor, vCPU, SSE, Power
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