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2025-12-02 - 23:06
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Tue Dec 02, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502500,0irq/45-4a10000013066-21kworker/0:107:03:220
16999999360,0cyclictest0-21swapper11:48:550
102572930,0sleep08957-1kworker/u3:009:53:520
16999999258,0cyclictest0-21swapper12:03:480
16999999160,0cyclictest0-21swapper11:28:320
16999999156,0cyclictest0-21swapper07:48:560
7450900,0irq/46-4a1000006037-21wget09:43:100
7350900,0irq/45-4a1000004259-21/usr/sbin/munin09:38:030
7350900,0irq/45-4a10000024544-1kworker/u3:211:19:020
7350900,0irq/45-4a10000017481-21kworker/0:111:07:550
7982890,0sleep031695-1kworker/u3:111:02:510
16999998968,0cyclictest0-21swapper11:33:170
16999998963,0cyclictest0-21swapper12:08:220
16999998957,0cyclictest0-21swapper10:38:240
16999998955,0cyclictest0-21swapper07:54:060
16999998953,0cyclictest0-21swapper09:18:450
7350880,0irq/45-4a100000288-21ntpd07:46:360
16999998866,0cyclictest0-21swapper11:59:060
16999998856,0cyclictest0-21swapper08:43:450
7862870,0chrt653-1kworker/u3:012:37:000
7350870,0irq/45-4a10000010680-1kworker/u3:210:29:570
16999998766,0cyclictest0-21swapper09:08:470
7450860,0irq/46-4a10000032546-1kworker/u3:208:00:030
7450860,0irq/46-4a10000027367-21sshd07:33:590
16999998654,0cyclictest0-21swapper08:03:480
16999998653,0cyclictest0-21swapper08:38:390
107862860,0chrt10671-1kworker/u3:208:22:290
7450850,0irq/46-4a1000006436-21runrttasks08:08:400
7450850,0irq/46-4a1000004748-21sort11:13:260
7450850,0irq/46-4a10000027337-21seq12:18:470
7450850,0irq/46-4a10000027102-21runrttasks10:43:360
7450850,0irq/46-4a10000016240-21/usr/sbin/munin10:13:470
7350850,0irq/45-4a10000022735-21latency_hist07:22:530
281612850,0sleep027558-1kworker/u3:209:13:090
16999998553,0cyclictest0-21swapper07:08:430
7450840,0irq/46-4a100000443-21snmpd12:13:430
7450840,0irq/46-4a100000317-1kworker/u3:109:35:070
7450840,0irq/46-4a10000014525-21/usr/sbin/munin10:08:340
7350840,0irq/45-4a10000024573-21apt07:28:060
7350840,0irq/45-4a10000013337-21entropy11:38:480
16999998460,0cyclictest0-21swapper10:33:250
16999998451,0cyclictest0-21swapper07:23:090
7450830,0irq/46-4a10000030089-21seq12:28:060
7450830,0irq/46-4a10000028637-21runrttasks07:38:420
7450830,0irq/46-4a10000025326-21memory09:03:410
7450830,0irq/46-4a10000014740-21wget11:43:150
7350830,0irq/45-4a1000002458-21copy09:32:590
7350830,0irq/45-4a10000012799-21latency_hist10:02:570
7350830,0irq/45-4a10000012396-1kworker/u3:108:31:110
16999998348,0cyclictest0-21swapper09:58:250
7450820,0irq/46-4a1000008957-1kworker/u3:009:50:430
7450820,0irq/46-4a1000008921-1kworker/u3:008:23:190
7450820,0irq/46-4a1000004282-21latency_hist11:12:550
7450820,0irq/46-4a10000029950-21latency_hist12:27:520
7450820,0irq/46-4a10000028027-1kworker/u3:110:49:090
7450820,0irq/46-4a10000019555-21/usr/sbin/munin08:48:180
7450820,0irq/46-4a10000017988-21apt10:18:030
7450820,0irq/46-4a10000015030-21memory08:33:460
7350820,0irq/45-4a1000007889-21aten_r4power_en11:23:090
245482820,0sleep023575-1kworker/u3:209:02:480
7450810,0irq/46-4a10000030517-21seq10:53:360
7450810,0irq/46-4a10000020323-21seq10:23:430
7450810,0irq/46-4a10000019693-21sendmail11:57:540
7450810,0irq/46-4a10000018961-21fschecks_count07:13:020
7350810,0irq/45-4a1000007902-21fschecks_count08:13:230
7350810,0irq/45-4a10000022704-21seq08:56:500
7450800,0irq/46-4a10000031802-21df09:23:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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