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2026-07-28 - 06:45
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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 highest latencies:
System rack6slot5.osadl.org (updated Tue Jul 28, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
161089995364835,4690cyclictest28186-21kworker/0:219:15:500
161089988884724,4161cyclictest28186-21kworker/0:219:12:320
161089961903368,2818cyclictest28186-21kworker/0:219:20:480
142512778184,204sleep00-21swapper19:05:030
161089948333,450cyclictest0-21swapper22:52:140
161089948332,448cyclictest32482-21sort22:30:230
161089947233,425cyclictest296082sleep022:23:080
161089947133,377cyclictest2203-21fschecks_time23:46:190
161089947132,259cyclictest11-21ksoftirqd/023:41:180
161089947131,205cyclictest26099-21munin-node21:00:390
161089947031,439cyclictest32421-21ssh21:16:150
161089946632,374cyclictest24481-21missed_timers20:55:520
161089946533,418cyclictest2904-21munin-node20:00:230
161089946333,360cyclictest17183-21sed00:20:360
161089941315,87cyclictest18181-21ssh21:56:370
161089941234,365cyclictest21668-21kworker/u2:123:35:090
161089941036,361cyclictest23658-21ssh00:35:290
161089940832,362cyclictest28934-21diskmemload23:33:160
161089940735,372cyclictest0-21swapper19:26:030
161089940732,361cyclictest28934-21diskmemload21:38:060
161089940635,371cyclictest0-21swapper21:51:520
161089940620,87cyclictest16483-21rm00:19:400
161089940619,373cyclictest3800-21seq22:37:350
161089940532,359cyclictest18793-21timerandwakeup23:11:020
161089940519,371cyclictest25117-21ssh22:12:580
161089940435,310cyclictest28934-21diskmemload21:13:530
161089940433,310cyclictest28934-21diskmemload21:34:410
161089940233,355cyclictest20896-21kworker/u2:122:26:320
161089940228,361cyclictest21157-21munin-node23:16:140
161089940222,366cyclictest28934-21diskmemload21:46:240
161089940039,301cyclictest26394-21rm23:28:540
161089940021,365cyclictest224362chrt22:06:220
161089939932,353cyclictest19532-21seq20:44:080
161089939832,353cyclictest3870-21kworker/u2:122:41:370
161089939832,351cyclictest11391-21runrttasks21:41:240
161089939825,304cyclictest4924-21runrttasks00:03:560
161089939815,370cyclictest27872-21runrttasks21:05:360
161089939741,341cyclictest5026-21ssh23:52:550
161089939735,348cyclictest11-21ksoftirqd/019:45:010
161089939734,363cyclictest0-21swapper20:50:550
161089939732,351cyclictest8157-21ssh22:46:490
161089939732,351cyclictest2237-21perl21:21:160
161089939732,351cyclictest15148-21ssh23:03:190
161089939632,349cyclictest32699-21munin-node19:50:540
161089939631,351cyclictest1088-21grep19:55:160
161089939532,350cyclictest5084-21ssh21:27:510
161089939532,349cyclictest27334-21ssh22:18:000
161089939531,350cyclictest19897-21df20:45:200
161089939432,349cyclictest16226-21ssh23:05:390
161089939417,362cyclictest23406-21ssh23:21:150
161089939234,297cyclictest12898-21sed00:10:410
161089939032,344cyclictest72072sleep023:57:420
161089938948,280cyclictest12132-21seq22:56:050
161089938759,268cyclictest12113-21ssh00:09:580
161089938714,88cyclictest20465-21ssh00:27:180
161089938631,355cyclictest0-21swapper22:03:380
161089938457,267cyclictest16297-21gltestperf20:35:220
161089938231,289cyclictest14873-21expr20:30:370
161089937932,288cyclictest31298-21chrt19:48:170
161089937731,346cyclictest0-21swapper20:25:140
161089935432,82cyclictest12-21rcu_preempt20:07:380
161089933320,300cyclictest20501-21kworker/0:100:31:200
161089933159,258cyclictest4305-21snmpd20:10:100
161089932956,90cyclictest12285-21sed20:25:030
161089932857,258cyclictest26357-21ntp_offset19:35:240
161089932755,260cyclictest8705-21df20:15:190
161089932553,258cyclictest24284-21ntp_states19:30:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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