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2026-06-22 - 09:39
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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 Mon Jun 22, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122049988044635,4166cyclictest17353-21kworker/0:019:11:510
120982751186,203sleep00-21swapper19:09:450
122049951221,429cyclictest24606-21diskmemload21:25:220
122049950163,377cyclictest24606-21diskmemload23:10:190
122049949364,255cyclictest11-21ksoftirqd/022:43:300
122049949322,456cyclictest18167-21cut23:25:560
122049948835,439cyclictest21125-21ssh23:32:420
122049948355,356cyclictest0-21swapper00:44:130
122049947723,392cyclictest9006-21kworker/u2:200:31:300
122049947520,393cyclictest27227-21ssh23:48:160
122049947336,437cyclictest0-21swapper23:51:440
122049946388,361cyclictest5008-21runrttasks21:39:250
122049946167,211cyclictest11-21ksoftirqd/023:55:110
122049946067,211cyclictest11-21ksoftirqd/021:55:220
122049945922,422cyclictest17656-21ssh22:08:280
122049945819,422cyclictest11171-21sed00:26:150
122049945520,420cyclictest6734-21munin-node23:00:540
122049945322,369cyclictest4223-21nscd21:31:370
122049945318,411cyclictest15425-21rm22:02:560
122049945243,347cyclictest8096-21switchtime21:45:530
122049945193,344cyclictest11-21ksoftirqd/022:33:120
122049945165,363cyclictest365-21uname00:01:120
122049945058,209cyclictest11-21ksoftirqd/000:16:480
122049944618,413cyclictest28686-21ps19:51:080
122049944467,363cyclictest13-21rcuc/021:40:140
122049944418,411cyclictest19108-21ssh22:11:240
122049944324,405cyclictest32615-21munin-node22:46:280
122049944285,297cyclictest11-21ksoftirqd/019:35:390
122049944220,361cyclictest3283-21kworker/u2:000:10:000
122049944220,243cyclictest30048-21python21:21:250
122049944121,395cyclictest26676-21rm21:14:380
122049944082,299cyclictest345450irq/10-yenta23:18:580
122049943819,404cyclictest24606-21diskmemload23:07:070
122049943619,402cyclictest17110-21open_files19:20:360
122049943421,398cyclictest9724-21runrttasks00:22:480
122049943194,277cyclictest11-21ksoftirqd/022:22:280
122049943076,354cyclictest0-21swapper22:29:250
122049942969,186cyclictest345450irq/10-yenta00:37:560
122049942819,394cyclictest25314-21ssh23:42:110
122049942619,382cyclictest23602-21ssh23:39:310
122049942553,88cyclictest28667-21chrt21:18:560
122049942533,378cyclictest0-21swapper20:43:290
122049942425,339cyclictest3367-21kworker/u2:300:14:510
122049942220,340cyclictest26373-21kworker/u2:122:52:510
122049941849,87cyclictest29790-21ssh22:37:070
122049941719,337cyclictest24606-21diskmemload22:55:080
122049941420,332cyclictest21042-21ssh22:16:030
122049941222,320cyclictest25040-21ls19:41:090
122049940453,336cyclictest4690-21gltestperf20:15:230
122049939753,331cyclictest32673-1kworker/0:2H21:00:000
122049939354,156cyclictest15773-21munin-node23:20:410
122049939054,276cyclictest32454-21timerwakeupswit20:01:120
122049938438,285cyclictest4272-21snmpd20:37:230
122049938333,335cyclictest4894-21runrttasks20:29:090
122049938154,258cyclictest4192-21lldpd20:30:180
122049938036,344cyclictest0-21swapper19:30:180
122049938035,345cyclictest0-21swapper21:00:580
122049937920,299cyclictest338750irq/10-eth020:06:040
122049937735,342cyclictest0-21swapper20:20:260
122049937735,342cyclictest0-21swapper19:25:490
122049937718,299cyclictest902-21jbd2/sda1-819:50:020
122049937566,88cyclictest11-21ksoftirqd/021:50:180
122049937436,338cyclictest0-21swapper19:57:090
122049937399,260cyclictest4253-21lldpd21:05:480
122049937231,280cyclictest14709-21which19:15:330
122049937173,298cyclictest0-21swapper20:13:570
122049936096,251cyclictest11-21ksoftirqd/020:45:540
122049935836,322cyclictest0-21swapper20:53:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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