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2026-06-21 - 13:56
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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 all highest latencies:
System rack4slot2.osadl.org (updated Sun Jun 21, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502080,0irq/46-4a10000016866-21/usr/sbin/munin07:05:180
7450980,0irq/46-4a100000438-21snmpd09:53:100
7350980,0irq/45-4a10000010156-21/usr/sbin/munin11:29:590
7450970,0irq/46-4a10000027710-21fw_conntrack10:45:200
7450960,0irq/46-4a10000026523-21timerandwakeup10:40:520
20032969,0sleep02042-21tune2fs09:30:180
7450950,0irq/46-4a1000007599-21runrttasks09:45:430
7450950,0irq/46-4a10000032260-21sendmail-msp11:00:260
7450950,0irq/46-4a10000032099-1kworker/u3:007:52:060
7350950,0irq/45-4a10000013751-21/usr/sbin/munin08:30:030
7450940,0irq/46-4a1000003225-21sendmail-msp08:00:260
7450940,0irq/46-4a10000029407-21fw_forwarded_lo10:50:210
7450940,0irq/46-4a10000025382-21cron10:39:480
7450940,0irq/46-4a10000024717-21mailstats07:25:430
7450940,0irq/46-4a10000019318-21sshd08:45:270
7450940,0irq/46-4a10000019180-21/usr/sbin/munin07:10:480
7350940,0irq/45-4a1000005758-21open_files08:05:400
7350940,0irq/45-4a1000002877-1kworker/u3:009:36:420
90742930,0chrt7986-1kworker/u3:211:25:320
7450930,0irq/46-4a1000008747-21sshd08:15:100
7450930,0irq/46-4a1000004938-21sendmail-msp09:40:250
7450930,0irq/46-4a1000003203-21latency_hist07:59:490
7450930,0irq/46-4a10000028852-21sendmail-msp07:39:530
7450930,0irq/46-4a10000017395-21grep08:40:180
7450930,0irq/46-4a10000013471-21sendmail-msp11:40:230
2772429310,0sleep027725-21fw_forwarded_lo12:20:270
7450920,0irq/46-4a1000007459-21/usr/sbin/munin11:20:430
7450920,0irq/46-4a10000031603-21/usr/sbin/munin12:30:460
7450920,0irq/46-4a10000031603-21timerandwakeup10:55:460
7450920,0irq/46-4a10000029477-21irqstats09:15:240
7450920,0irq/46-4a10000029337-21runrttasks07:40:190
7450920,0irq/46-4a10000028310-21users09:10:470
7450920,0irq/46-4a10000022415-21df_inode08:55:080
7450920,0irq/46-4a10000021297-21grep07:16:010
7450920,0irq/46-4a1000001931-21df_inode11:05:120
7450920,0irq/46-4a10000019038-21/usr/sbin/munin10:20:160
7450920,0irq/46-4a1000001507-21sendmail12:39:490
7450920,0irq/46-4a10000014202-21memory10:05:350
7450920,0irq/46-4a10000012572-21/usr/sbin/munin08:25:360
7450920,0irq/46-4a10000012324-21fw_forwarded_lo11:35:220
228002920,0chrt12332-1kworker/u3:107:20:410
18006999259,0cyclictest0-21swapper07:45:030
7450910,0irq/46-4a1000007202-21fw_forwarded_lo08:10:220
7450910,0irq/46-4a1000005557-21irqstats11:15:250
7450910,0irq/46-4a10000025956-21fschecks_time07:30:180
7450910,0irq/46-4a10000024145-21/usr/sbin/munin09:00:110
7450910,0irq/46-4a10000020416-21/usr/sbin/munin08:50:240
7450910,0irq/46-4a10000020259-21cron11:59:480
7450910,0irq/46-4a10000017596-21sshd11:50:320
7450910,0irq/46-4a10000016873-21run-parts08:39:490
7450910,0irq/46-4a10000015847-21latency10:10:300
7450910,0irq/46-4a1000001421-21runrttasks09:29:160
7450910,0irq/46-4a10000011903-21grep10:00:000
7450910,0irq/46-4a10000011498-21runrttasks09:57:590
7350910,0irq/45-4a10000030267-21chrt12:27:390
7450900,0irq/46-4a1000004913-21basename11:14:500
7450900,0irq/46-4a10000030978-21runrttasks09:20:100
7450900,0irq/46-4a10000023822-21/usr/sbin/munin12:10:340
7450900,0irq/46-4a10000022804-21ntp_kernel_pll_12:05:370
7450900,0irq/46-4a10000022100-21latency_hist10:29:520
7450900,0irq/46-4a10000021191-21ps12:00:470
7450900,0irq/46-4a10000010654-21runrttasks08:20:290
18006999069,0cyclictest0-21swapper11:45:380
18006999057,0cyclictest0-21swapper10:15:420
7450890,0irq/46-4a10000025749-21cstates09:05:050
7450880,0irq/46-4a10000025691-21grep12:15:020
7450880,0irq/46-4a10000020417-21runrttasks10:24:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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