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2026-07-11 - 10:09
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack4slot2.osadl.org (updated Sat Jul 11, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745012040,0irq/46-4a1000004359-1kworker/u3:119:08:140
4759999457,0cyclictest0-21swapper21:17:440
4759999153,0cyclictest0-21swapper21:04:260
4759998769,0cyclictest21646-21/usr/sbin/munin19:54:530
4759998755,0cyclictest0-21swapper19:49:120
4759998558,0cyclictest0-21swapper19:22:160
4759998164,0cyclictest5769-21/usr/sbin/munin20:44:220
4759998161,0cyclictest11132-21irqstats20:59:460
4759998157,0cyclictest0-21swapper21:58:380
4759998055,0cyclictest0-21swapper21:28:140
4759997961,0cyclictest3541-21sshd22:13:370
4759997952,0cyclictest0-21swapper22:46:420
4759997856,0cyclictest8731-21cron19:19:010
4759997856,0cyclictest0-21swapper23:09:120
4759997855,0cyclictest16546-21sendmail_mailst00:24:530
4759997852,0cyclictest0-21swapper22:07:280
4759997759,0cyclictest18794-21runrttasks00:32:280
4759997753,0cyclictest0-21swapper23:21:300
4759997752,0cyclictest14610-21memory19:34:430
4759997739,0cyclictest7065-21sendmail-msp23:59:430
4759997657,0cyclictest31246-21cstates23:34:140
4759997656,0cyclictest27142-21runrttasks20:10:560
4759997653,0cyclictest31672-21chrt21:59:480
4759997651,0cyclictest0-21swapper00:19:120
4759997647,0cyclictest0-21swapper19:30:330
4759997556,0cyclictest17001-21runrttasks19:41:400
4759997555,0cyclictest554-21grep20:29:190
4759997554,0cyclictest22275-21chrt23:08:040
4759997552,0cyclictest26769-21grep21:44:510
4759997549,0cyclictest0-21swapper23:41:580
4759997455,0cyclictest32567-21runrttasks20:28:200
4759997455,0cyclictest27478-1kworker/u3:220:14:480
4759997454,0cyclictest2576-21/usr/sbin/munin23:44:380
4759997448,0cyclictest0-21swapper21:53:060
4759997439,0cyclictest22525-21date19:59:100
4759997357,0cyclictest10854-21df_abs19:24:200
4759997354,0cyclictest17932-21irqstats22:54:370
4759997351,0cyclictest18570-21seq19:45:310
4759997351,0cyclictest17315-21sendmail-msp21:19:370
4759997347,0cyclictest0-21swapper22:21:170
4759997347,0cyclictest0-21swapper20:50:070
4759997347,0cyclictest0-21swapper00:07:230
4759997345,0cyclictest0-21swapper20:39:240
4759997340,0cyclictest10788-21seq00:09:180
4759997255,0cyclictest5631-21cstates23:54:170
4759997254,0cyclictest13652-21seq22:42:190
4759997253,0cyclictest0-21swapper20:57:040
4759997251,0cyclictest25788-21runrttasks20:08:480
4759997251,0cyclictest25159-21switchtime23:14:590
4759997250,0cyclictest10103-21runrttasks22:31:170
4759997249,0cyclictest30858-21runrttasks23:33:290
4759997157,0cyclictest7350irq/45-4a10000022:59:270
4759997151,0cyclictest5059-21seq23:52:010
4759997148,0cyclictest0-21swapper23:25:220
4759997146,0cyclictest2509-21idleruntime20:34:350
4759997057,0cyclictest7350irq/45-4a10000022:24:230
4759997050,0cyclictest29774-21/usr/sbin/munin20:19:310
4759997049,0cyclictest4045-21diskstats22:14:270
4759997049,0cyclictest13154-21which00:14:570
4759997048,0cyclictest16302-21meminfo22:49:440
4759997047,0cyclictest5814-21awk19:09:580
4759997047,0cyclictest438-21snmpd22:34:380
4759997046,0cyclictest24570-21diskstats21:39:270
4759996951,0cyclictest15135-21seq21:10:300
4759996947,0cyclictest20367-21chrt00:36:190
4759996946,0cyclictest21437-21/usr/sbin/munin21:29:440
4759996932,0cyclictest24113-21latency_hist21:39:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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