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2025-12-01 - 14:22
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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 Mon Dec 01, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502160,0irq/45-4a10000012662-21kworker/0:407:02:590
18220999358,0cyclictest0-21swapper09:19:000
18220999258,0cyclictest0-21swapper11:03:140
18220999160,0cyclictest0-21swapper12:18:460
18220999058,0cyclictest0-21swapper09:33:400
18220999057,0cyclictest0-21swapper09:03:590
7350890,0irq/45-4a10000019365-1kworker/u3:112:23:450
7350890,0irq/45-4a10000015049-1kworker/u3:008:31:410
7350890,0irq/45-4a10000013980-1kworker/u3:110:04:040
18220998958,0cyclictest0-21swapper07:38:530
18220998956,0cyclictest0-21swapper11:48:250
18220998956,0cyclictest0-21swapper07:18:400
7350880,0irq/45-4a10000030517-1kworker/u3:207:44:310
7350880,0irq/45-4a10000013818-1kworker/u3:011:37:460
18220998865,0cyclictest0-21swapper10:43:480
18220998857,0cyclictest0-21swapper11:38:200
18220998857,0cyclictest0-21swapper07:54:040
18220998856,0cyclictest0-21swapper07:58:500
18220998855,0cyclictest0-21swapper11:53:450
18220998855,0cyclictest0-21swapper11:13:270
7450870,0irq/46-4a10000027521-21wget07:33:130
7350870,0irq/45-4a10000012558-21/usr/sbin/munin08:23:260
18220998764,0cyclictest0-21swapper10:23:360
18220998749,0cyclictest0-21swapper08:49:120
7350860,0irq/45-4a100000386-21copy10:58:270
7350860,0irq/45-4a1000001587-1kworker/u3:209:28:480
18220998655,0cyclictest0-21swapper10:53:300
18220998655,0cyclictest0-21swapper07:08:560
18220998653,0cyclictest0-21swapper11:43:380
7450850,0irq/46-4a10000025287-21kworker/u2:507:25:100
7350850,0irq/45-4a10000012-21ksoftirqd/009:08:510
18220998554,0cyclictest0-21swapper12:28:180
7450840,0irq/46-4a10000026586-21ntpq07:29:430
7350840,0irq/45-4a10000017709-1kworker/u3:110:16:220
18220998451,0cyclictest0-21swapper10:08:070
7450830,0irq/46-4a10000030547-21timerandwakeup10:49:590
7450830,0irq/46-4a10000019730-21cut10:18:390
7450830,0irq/46-4a10000018710-1kworker/u3:007:13:160
7350830,0irq/45-4a10000025879-21sendmail10:37:550
18220998349,0cyclictest0-21swapper08:18:140
7450820,0irq/46-4a1000007355-21cstates09:43:180
7450820,0irq/46-4a10000021529-21sshd11:59:050
7450820,0irq/46-4a10000020646-21chrt08:47:580
7350820,0irq/45-4a100000856-21df_inode12:33:400
7350820,0irq/45-4a10000012-21ksoftirqd/009:54:000
18220998251,0cyclictest0-21swapper12:13:120
18220998251,0cyclictest0-21swapper09:23:160
7450810,0irq/46-4a1000009391-21irqstats09:48:380
7450810,0irq/46-4a1000007688-21nfs_client08:08:470
7450810,0irq/46-4a1000005901-21fw_conntrack09:38:310
7450810,0irq/46-4a10000032700-21wget07:48:120
7450810,0irq/46-4a10000030912-21sendmail09:17:560
7450810,0irq/46-4a10000022616-21aten_r4power_cu10:28:130
7450810,0irq/46-4a10000018648-21runrttasks08:40:440
7450810,0irq/46-4a10000016012-21fschecks_time08:33:340
7450810,0irq/46-4a10000012195-1kworker/u3:209:58:500
7350810,0irq/45-4a10000023272-21/usr/sbin/munin08:53:540
18220998151,0cyclictest0-21swapper11:23:270
7450800,0irq/46-4a1000007278-21/usr/sbin/munin11:18:360
7450800,0irq/46-4a1000005772-21chrt08:03:340
7450800,0irq/46-4a10000024902-21open_files08:58:510
7350800,0irq/45-4a10000023099-21cut12:03:320
18220998055,0cyclictest0-21swapper11:11:530
7450790,0irq/46-4a10000099092sleep008:14:360
7450790,0irq/46-4a10000026003-21ls10:38:000
7450790,0irq/46-4a10000023933-1kworker/u3:012:08:170
7450790,0irq/46-4a10000011209-21seq11:28:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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