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2026-01-01 - 22:17
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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 highest latencies:
System rack4slot2.osadl.org (updated Thu Jan 01, 2026 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
318012570214,0sleep030571-1kworker/u3:507:04:550
7450980,0irq/46-4a1000002675-21df_inode07:14:560
7450960,0irq/46-4a1000005620-21sendmail-msp08:59:540
7450960,0irq/46-4a10000012623-21seq10:54:450
7350960,0irq/45-4a10000021187-21apt-get11:19:500
7450950,0irq/46-4a10000032053-21seq11:50:210
7450950,0irq/46-4a10000030325-21nfs_client10:10:220
7450950,0irq/46-4a10000028517-21meminfo08:30:180
7450950,0irq/46-4a10000020720-21chrt09:42:240
7450950,0irq/46-4a10000010995-21/usr/sbin/munin12:24:480
7450940,0irq/46-4a1000008946-21latency_hist07:34:330
7450940,0irq/46-4a1000006141-21fw_forwarded_lo07:25:130
7450940,0irq/46-4a1000003842-21sendmail-msp07:19:480
7450940,0irq/46-4a1000002798-21sort07:15:030
7450940,0irq/46-4a1000002291-21sendmail-msp11:59:460
7450940,0irq/46-4a10000020620-21seq08:07:040
7450940,0irq/46-4a10000015396-21timerwakeupswit12:35:400
7450940,0irq/46-4a10000012567-21ls09:19:410
7450940,0irq/46-4a10000011617-21runrttasks09:16:170
7350940,0irq/45-4a10000026755-21grep08:25:180
93682930,0sleep08726-1kworker/u3:109:09:530
806999358,0cyclictest0-21swapper10:15:390
7450930,0irq/46-4a100000994-21runrttasks10:20:090
7450930,0irq/46-4a1000009144-21sendmail-msp12:19:410
7450930,0irq/46-4a1000008293-21proc_pri10:40:460
7450930,0irq/46-4a1000004779-21meminfo10:31:060
7450930,0irq/46-4a10000017526-21sendmail-msp08:00:510
7450930,0irq/46-4a10000016533-21/usr/sbin/munin07:55:170
7450930,0irq/46-4a1000001266-21if_eth011:55:500
7450920,0irq/46-4a1000007044-1kworker/u3:010:46:590
7450920,0irq/46-4a1000005789-21runrttasks10:34:470
7450920,0irq/46-4a10000031787-21chrt08:40:130
7450920,0irq/46-4a10000028535-21latency10:05:160
7450920,0irq/46-4a10000027910-21sendmail-msp11:40:410
7450920,0irq/46-4a10000024542-21runrttasks09:54:450
7450920,0irq/46-4a10000023252-21runrttasks11:25:180
7450920,0irq/46-4a10000021329-21ls09:44:530
7450920,0irq/46-4a10000017906-21cstates09:34:540
7450920,0irq/46-4a10000017771-21/usr/sbin/munin11:09:460
7450920,0irq/46-4a10000016791-21seq09:31:230
7450920,0irq/46-4a10000014674-21fw_forwarded_lo07:50:080
7450920,0irq/46-4a10000011986-21/usr/sbin/munin10:50:420
7450920,0irq/46-4a10000010812-21chrt07:39:470
7450910,0irq/46-4a100000909-21df_inode08:44:580
7450910,0irq/46-4a1000008067-21chrt12:15:130
7450910,0irq/46-4a1000007405-21cat09:04:350
7450910,0irq/46-4a1000006173-21grep12:10:040
7450910,0irq/46-4a1000004736-21memory12:05:220
7450910,0irq/46-4a10000030350-21meminfo11:45:200
7450910,0irq/46-4a10000030212-21ls08:35:160
7450910,0irq/46-4a10000027858-21cron11:39:300
7450910,0irq/46-4a10000025221-21ntp_offset08:20:390
7450910,0irq/46-4a10000024129-21runrttasks09:52:240
7450910,0irq/46-4a10000021486-21seq08:10:050
7450910,0irq/46-4a10000019437-21cut11:14:350
7450910,0irq/46-4a10000015373-21users09:25:410
7450910,0irq/46-4a10000014222-21sendmail-msp11:00:470
7450910,0irq/46-4a10000013048-21irqstats07:45:160
7450910,0irq/46-4a10000010001-21/usr/sbin/munin07:35:340
7350910,0irq/45-4a10000026566-21sed10:00:020
7450900,0irq/46-4a1000003451-21chrt08:51:040
7450900,0irq/46-4a10000025144-21/usr/sbin/munin11:30:170
7450900,0irq/46-4a10000023076-21df_inode08:14:580
7450900,0irq/46-4a10000015997-21wc11:04:340
7450900,0irq/46-4a10000013255-21latency12:30:160
7450890,0irq/46-4a1000005293-21runrttasks08:57:110
7450890,0irq/46-4a1000002583-21cstates10:24:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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