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2026-07-04 - 02:37
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackeslot2.osadl.org (updated Fri Jul 03, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10052221150,1sleep10-21swapper/110:34:511
139112320,2sleep20-21swapper/209:34:562
41190202310,2sleep1341rcuc/108:25:021
604482300,2sleep30-21swapper/310:04:593
2168202300,2sleep0191rcu_preempt11:50:010
4025164992816,3cyclictest192573-21kthreadcore11:34:551
4025164992724,2cyclictest127488-21grep10:50:021
402516499270,25cyclictest4106590-21sed08:15:011
1361932260,2sleep30-21swapper/310:57:463
4025164992522,2cyclictest142544-21systemd11:00:021
4025163992522,2cyclictest179029-21cron11:25:000
4025163992514,6cyclictest0-21swapper/012:40:000
4025164992421,2cyclictest283880-21grep12:35:011
4025163992421,2cyclictest4161251-21cron09:00:010
323102240,2sleep30-21swapper/309:47:083
4025164992320,2cyclictest11148-21head09:34:491
4025163992320,2cyclictest0-21swapper/010:40:030
4025163992316,2cyclictest17750irq/132-ahci[0000:00:17.0]09:10:010
4025164992219,2cyclictest4136941-21grep08:40:021
4025164992219,2cyclictest209430-21unixbench-2d11:45:011
4025164992219,2cyclictest164126-21basename11:15:001
4025163992219,2cyclictest658-21avahi-daemon10:10:010
4025165992118,1cyclictest0-21swapper/211:20:012
4025165992118,1cyclictest0-21swapper/208:45:012
4025164992113,1cyclictest67250irq/126-eno108:27:121
4025164992111,2cyclictest61111-21latency_hist10:05:021
4025164992110,3cyclictest0-21swapper/109:50:481
402516399214,3cyclictest268874-21timerwakeupswit12:24:580
4025163992118,2cyclictest4058137-21systemd-run07:35:020
4025163992118,2cyclictest0-21swapper/009:50:010
4025163992117,3cyclictest4143289-21systemd-run08:45:010
4025163992117,3cyclictest0-21swapper/007:45:030
4025163992115,5cyclictest0-21swapper/012:05:020
4025163992110,6cyclictest0-21swapper/009:14:550
4025165992018,1cyclictest0-21swapper/212:10:032
4025165992018,1cyclictest0-21swapper/210:10:022
4025165992018,1cyclictest0-21swapper/208:25:002
4025165992018,1cyclictest0-21swapper/207:30:012
4025165992017,1cyclictest0-21swapper/211:30:012
4025164992017,2cyclictest0-21swapper/110:41:011
4025164992017,2cyclictest0-21swapper/110:41:011
4025164992013,4cyclictest0-21swapper/108:49:501
402516399204,9cyclictest204005-21aten2.4-expect11:44:470
402516399201,9cyclictest151693-21ssh11:09:470
4025163992017,2cyclictest4155059-21idleruntime-cro08:55:010
4025163992017,2cyclictest4144930-21sed08:49:520
4025163992017,2cyclictest231644-21grep12:00:010
4025163992010,5cyclictest0-21swapper/010:00:010
492398190,2rtkit-daemon1237-21mta-sts-daemon09:04:351
4025165991917,1cyclictest0-21swapper/212:15:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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