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2026-05-26 - 04:03
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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 May 26, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
178499992454735,4499cyclictest28555-21kworker/0:219:15:440
178499990404741,4296cyclictest28555-21kworker/0:219:12:260
178499978074296,3497cyclictest28555-21kworker/0:219:25:570
178499972803592,3636cyclictest28555-21kworker/0:219:22:400
174172777184,203sleep00-21swapper19:07:040
178499951163,434cyclictest30501-21diskmemload22:05:230
178499948634,438cyclictest32675-21ssh23:42:560
178499948634,438cyclictest2715-21ssh22:35:080
178499948533,439cyclictest11037-21ssh22:53:080
178499947942,423cyclictest0-21swapper00:32:210
178499947033,437cyclictest0-21swapper20:06:490
17849994631,447cyclictest30501-21diskmemload23:38:320
17849994621,399cyclictest17782-21seq00:23:350
178499946132,429cyclictest0-21swapper19:51:400
178499945773,209cyclictest13-21rcuc/021:35:180
17849994438,420cyclictest8028-21sshd21:31:170
178499944334,384cyclictest3729-21fschecks_time21:21:280
178499943034,325cyclictest14243-21df_abs23:00:410
178499941729,374cyclictest32068-21seq21:11:560
178499940934,360cyclictest15558-21runrttasks20:28:560
178499940934,313cyclictest11897-21df00:10:240
178499940931,203cyclictest11-21ksoftirqd/023:22:040
178499940851,342cyclictest30501-21diskmemload22:03:140
178499940735,302cyclictest19527-21ssh23:12:100
178499940732,313cyclictest24553-21runrttasks20:51:370
178499940731,88cyclictest8993-21ssh00:02:530
178499940556,334cyclictest27973-21apt-get22:17:310
178499940534,357cyclictest26232-21ssh23:28:190
178499940341,349cyclictest0-21swapper20:35:370
178499940241,348cyclictest11-21ksoftirqd/022:48:310
178499940233,355cyclictest19324-21ssh21:57:120
178499940233,299cyclictest3137-21awk19:55:280
178499940232,356cyclictest26681-21ssh23:30:080
178499940232,309cyclictest4272-21snmpd20:21:310
178499940132,356cyclictest4272-21snmpd00:15:100
178499940032,307cyclictest861-21munin-node23:45:220
178499939923,88cyclictest19816-21ssh00:27:530
178499939855,282cyclictest30501-21diskmemload00:00:070
178499939853,329cyclictest30501-21diskmemload23:05:370
178499939834,294cyclictest26398-21awk19:30:310
178499939834,190cyclictest21666-21apt-get23:17:010
17849993964,379cyclictest345450irq/10-yenta22:27:550
178499939634,302cyclictest4272-21snmpd21:47:440
178499939555,327cyclictest11524-21ssh00:09:490
178499939532,348cyclictest32383-21sort19:45:490
178499939520,305cyclictest11-21ksoftirqd/022:14:290
178499939354,325cyclictest3737-21runrttasks23:50:540
178499939335,343cyclictest30501-21diskmemload21:50:460
178499939333,345cyclictest12237-21seq22:55:500
178499939231,300cyclictest28006-21tail19:35:210
178499939131,178cyclictest29050-21sh22:20:350
178499939033,342cyclictest6689-21sh21:29:100
178499939030,301cyclictest11-21ksoftirqd/021:16:430
178499938935,292cyclictest20784-21fschecks_count20:41:050
178499938934,294cyclictest6074-19udisks-part-id22:41:190
178499938932,293cyclictest22047-21grep20:45:360
178499938834,294cyclictest2397-21ssh22:33:590
178499938735,338cyclictest30501-21diskmemload00:36:500
178499938734,339cyclictest27703-21strings21:00:430
178499938733,341cyclictest13106-21ssh21:43:420
178499938732,285cyclictest28771-21munin-node21:05:220
178499938520,304cyclictest16585-21strings20:30:420
178499938231,291cyclictest301152sleep019:40:290
178499937831,287cyclictest4272-21snmpd20:16:220
178499937433,328cyclictest12-21rcu_preempt20:03:280
178499935492,248cyclictest13-21rcuc/020:10:120
178499935431,263cyclictest26096-21fschecks_time20:55:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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