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2026-09-21 - 03:42
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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 Mon Sep 21, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501990,0irq/46-4a1000009820-21runrttasks19:07:490
7350890,0irq/45-4a10000023398-21chrt21:20:240
7350870,0irq/45-4a1000004019-21/usr/sbin/munin20:24:480
146432870,0sleep012068-1kworker/u3:020:55:060
10082998654,0cyclictest0-21swapper23:25:270
7450850,0irq/46-4a1000007620-21chrt23:44:520
7350850,0irq/45-4a10000024800-21df_inode23:00:030
7350850,0irq/45-4a10000015351-21seq00:05:410
7350840,0irq/45-4a1000006344-21chrt23:40:260
7450830,0irq/46-4a100000442-21snmpd19:17:370
7450830,0irq/46-4a10000021495-21fschecks_time22:50:050
7350830,0irq/45-4a10000021341-21runrttasks21:14:540
44562830,0sleep03536-1kworker/u3:022:00:130
7450820,0irq/46-4a100000442-21snmpd22:49:000
7450820,0irq/46-4a10000031171-21cron23:19:350
7450820,0irq/46-4a10000027176-21timerwakeupswit21:30:340
7450820,0irq/46-4a10000026097-21sendmail-msp00:39:400
7450820,0irq/46-4a10000019439-21hostname21:09:490
7450820,0irq/46-4a10000014237-21hostname19:19:470
7350820,0irq/45-4a1000005678-21/usr/sbin/munin20:29:480
112222820,0sleep010722-1kworker/u3:022:20:070
7450810,0irq/46-4a1000007325-21wc22:09:380
7450810,0irq/46-4a10000032398-21seq23:20:390
7450810,0irq/46-4a10000031524-21sshd20:09:540
7450810,0irq/46-4a10000031523-21df21:44:520
7450810,0irq/46-4a10000024341-21munin-run19:49:360
7450810,0irq/46-4a10000023250-21runrttasks00:30:100
7450810,0irq/46-4a10000021294-21df_abs19:39:550
7450810,0irq/46-4a10000018278-21chrt00:15:240
7450810,0irq/46-4a10000016236-21diskstats19:24:580
7450810,0irq/46-4a10000016122-21/usr/sbin/munin00:09:520
7450810,0irq/46-4a10000012439-21sendmail-msp00:00:010
7450810,0irq/46-4a10000011738-21grep20:45:310
7450810,0irq/46-4a10000010717-21sendmail-msp22:19:370
7350810,0irq/45-4a1000003879-21runrttasks21:59:390
7450800,0irq/46-4a1000009097-21/usr/sbin/munin20:40:330
7450800,0irq/46-4a1000003101-21which20:20:310
7450800,0irq/46-4a1000003027-21proc_pri23:30:250
7450800,0irq/46-4a10000028345-21runrttasks21:35:070
7450800,0irq/46-4a10000028297-21tune2fs23:10:030
7450800,0irq/46-4a10000025090-21memory21:25:180
7450800,0irq/46-4a10000022739-21latency_hist22:54:400
7450800,0irq/46-4a1000002151-21sendmail-msp20:19:380
7450800,0irq/46-4a10000020146-21find19:35:280
7450800,0irq/46-4a10000018211-21ls21:05:140
7450800,0irq/46-4a10000017547-21sendmail-msp22:39:420
7450800,0irq/46-4a10000017547-21sendmail-msp22:39:390
41702806,0sleep04191-21cstates23:34:550
7450790,0irq/46-4a1000009318-21df23:49:520
7450790,0irq/46-4a1000008410-21sed20:35:320
7450790,0irq/46-4a10000030252-21runrttasks20:05:220
7450790,0irq/46-4a10000021774-21ntpq00:25:210
7450790,0irq/46-4a10000019440-21wget00:19:460
7450790,0irq/46-4a10000015956-21wget20:59:430
7450790,0irq/46-4a10000014265-21aten_r4power_en22:29:460
7450790,0irq/46-4a10000012695-21/usr/sbin/munin20:49:510
7450790,0irq/46-4a1000001169-21memory21:50:210
312642790,0sleep029426-1kworker/u3:121:44:390
7450780,0irq/46-4a10000026524-21uniq19:55:010
7450780,0irq/46-4a10000026224-21wget23:04:470
7450780,0irq/46-4a10000025159-21ntp_states19:50:250
7450780,0irq/46-4a10000018081-21fw_forwarded_lo19:30:100
7450780,0irq/46-4a10000012961-21fschecks_time22:25:050
7450780,0irq/46-4a10000011630-21grep23:55:260
7450780,0irq/46-4a10000010796-21meminfo19:10:190
7450770,0irq/46-4a1000007605-21/usr/sbin/munin22:09:530
7450760,0irq/46-4a10000027991-21wget19:59:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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