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2026-09-08 - 23:02
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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 Sep 08, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502200,0irq/46-4a10000017903-1kworker/u3:107:05:440
19884999659,0cyclictest0-21swapper08:10:390
7450930,0irq/46-4a10000012194-21wget11:29:590
7450920,0irq/46-4a10000022887-21interrupts10:25:230
7350920,0irq/45-4a1000003399-1kworker/u3:111:06:110
7450910,0irq/46-4a1000009169-1kworker/u3:211:24:260
7450910,0irq/46-4a1000005556-21df_inode09:35:110
7450910,0irq/46-4a1000005130-1kworker/u3:211:14:160
7450910,0irq/46-4a1000004156-21nfs_client07:55:340
7450910,0irq/46-4a10000029629-21sort09:10:200
7450910,0irq/46-4a10000027153-21seq10:38:200
7450910,0irq/46-4a10000025454-1kworker/u3:209:03:430
7450910,0irq/46-4a10000022848-21interrupts07:15:410
7450910,0irq/46-4a10000021932-1kworker/u3:011:58:120
7350910,0irq/45-4a10000029132-21/usr/sbin/munin07:35:480
19884999158,0cyclictest0-21swapper08:45:340
19884999156,0cyclictest0-21swapper08:35:380
166882910,0chrt28967-1kworker/u3:011:41:180
7450900,0irq/46-4a1000007655-1kworker/u3:209:43:520
7450900,0irq/46-4a10000032383-1kworker/u3:110:58:170
7450900,0irq/46-4a10000031138-21df12:25:040
7450900,0irq/46-4a10000030844-21cat09:14:510
7450900,0irq/46-4a10000028063-21runrttasks09:05:290
7450900,0irq/46-4a10000027701-21/usr/sbin/munin12:15:020
7450900,0irq/46-4a10000027300-21cron07:29:470
7450900,0irq/46-4a10000024857-21awk07:20:410
7450900,0irq/46-4a10000024287-21/usr/sbin/munin10:30:080
7450900,0irq/46-4a10000019027-21cut11:49:580
7450900,0irq/46-4a10000017831-21runrttasks10:10:350
7450900,0irq/46-4a10000012883-21/usr/sbin/munin08:20:410
7450900,0irq/46-4a10000010511-21/usr/sbin/munin11:24:590
19884999068,0cyclictest0-21swapper07:42:360
78852899,0sleep07925-21timerandwakeup11:15:440
7450890,0irq/46-4a100000628-21irqstats07:45:240
7450890,0irq/46-4a1000005793-21latency08:00:250
7450890,0irq/46-4a1000005129-21awk09:34:480
7450890,0irq/46-4a10000029608-21fschecks_time12:20:140
7450890,0irq/46-4a1000002687-21rt-features12:35:420
7450890,0irq/46-4a10000022777-21runrttasks08:50:180
7450890,0irq/46-4a1000002196-21tune2fs09:25:150
7450890,0irq/46-4a1000002016-21df_abs07:50:050
7450890,0irq/46-4a10000017706-21fw_conntrack11:45:180
7450890,0irq/46-4a10000017010-21chrt08:34:340
7450890,0irq/46-4a10000015511-21/usr/sbin/munin10:05:200
7450890,0irq/46-4a10000015029-1kworker/u3:210:02:270
7450890,0irq/46-4a10000014991-1kworker/u3:112:02:310
19884998957,0cyclictest0-21swapper12:30:220
19884998957,0cyclictest0-21swapper08:55:180
7450880,0irq/46-4a1000008086-1kworker/u3:008:09:440
7450880,0irq/46-4a100000446-21diskstats09:20:120
7450880,0irq/46-4a10000027888-21sshd07:30:220
7450880,0irq/46-4a10000027264-21sshd12:14:060
7450880,0irq/46-4a1000002487-21runrttasks11:00:330
7450880,0irq/46-4a10000023692-1kworker/u3:212:06:480
7450880,0irq/46-4a10000020218-21sed07:10:050
7450880,0irq/46-4a10000018926-21/usr/sbin/munin10:15:240
7450880,0irq/46-4a10000014899-21sshd08:26:080
19884998857,0cyclictest0-21swapper09:55:340
19884998849,0cyclictest0-21swapper09:45:470
7450870,0irq/46-4a10000031061-21cpuspeed10:50:020
7450870,0irq/46-4a10000019779-21awk08:40:440
7450870,0irq/46-4a10000018531-1kworker/u3:210:44:530
7450870,0irq/46-4a10000015407-21awk11:39:480
7450870,0irq/46-4a10000011001-21grep08:15:320
7450870,0irq/46-4a10000010689-21/usr/sbin/munin09:50:120
7450860,0irq/46-4a10000027904-21tune2fs10:40:150
217722860,0chrt20285-1kworker/u3:110:21:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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