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2026-07-22 - 10:09
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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 Wed Jul 22, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502850,0irq/46-4a1000004387-1kworker/u3:219:06:090
7450980,0irq/46-4a10000011022-21ls22:24:110
7350970,0irq/45-4a10000030018-21/usr/sbin/munin23:19:310
19472960,0chrt30485-1kworker/u3:021:58:430
7450950,0irq/46-4a10000017439-21wget19:33:470
7450940,0irq/46-4a1000009884-21chrt23:54:380
7450940,0irq/46-4a1000009860-21which19:13:380
7450940,0irq/46-4a1000009294-21fw_conntrack20:44:050
7450940,0irq/46-4a1000006820-21runrttasks22:12:250
7450940,0irq/46-4a10000027518-21sendmail-msp21:40:260
7450940,0irq/46-4a10000026221-21forks23:09:010
7450940,0irq/46-4a10000025769-21latency_hist23:08:340
7450940,0irq/46-4a10000017696-1kworker/u3:120:14:090
7450940,0irq/46-4a10000012305-21/usr/sbin/munin19:18:460
7350940,0irq/45-4a10000019572-21/usr/sbin/munin19:39:130
7350940,0irq/45-4a10000017739-21grep21:09:030
186312940,0sleep017031-1kworker/u3:000:21:030
7450930,0irq/46-4a1000009468-1kworker/u3:122:39:310
7450930,0irq/46-4a1000007320-21df22:13:520
7450930,0irq/46-4a1000005513-21aten_r4power_vo20:33:460
7450930,0irq/46-4a1000003941-21df_abs22:03:560
7450930,0irq/46-4a10000023039-21irqstats21:24:140
7450930,0irq/46-4a10000021847-21users22:54:380
7450930,0irq/46-4a10000020777-21/usr/sbin/munin00:28:510
7450930,0irq/46-4a1000001889-21sendmail-msp21:58:440
7450930,0irq/46-4a10000016257-21seq00:14:190
7450930,0irq/46-4a10000015733-21grep21:03:490
7450930,0irq/46-4a10000015337-21chrt22:37:100
7450930,0irq/46-4a10000013838-21grep00:08:360
7450920,0irq/46-4a1000008822-21/usr/sbin/munin22:19:060
7450920,0irq/46-4a1000007424-21df_abs20:38:590
7450920,0irq/46-4a10000031237-21cstates21:48:510
7450920,0irq/46-4a10000030021-21ntpq20:09:250
7450920,0irq/46-4a10000029870-21chrt21:44:140
7450920,0irq/46-4a10000027788-21cstates23:13:530
7450920,0irq/46-4a10000026116-21/usr/sbin/munin19:58:500
7450920,0irq/46-4a10000025816-21lockfile-create19:58:360
7450920,0irq/46-4a10000024143-21chrt19:53:380
7450920,0irq/46-4a10000024090-21sendmail-msp00:38:420
7450920,0irq/46-4a10000022174-21runrttasks19:46:570
7450920,0irq/46-4a10000020718-21latency_hist00:28:380
7450920,0irq/46-4a10000019365-21df_inode22:48:550
7450920,0irq/46-4a10000017325-21latency_hist22:43:390
7450920,0irq/46-4a10000016079-21fschecks_time19:29:030
85132910,0sleep08444-1kworker/u3:123:52:200
7450910,0irq/46-4a1000005712-21diskstats23:43:590
7450910,0irq/46-4a1000005078-21chrt20:31:590
7450910,0irq/46-4a10000028848-21chrt20:05:410
7450910,0irq/46-4a1000002577-21meminfo23:34:140
7450910,0irq/46-4a10000025722-1kworker/u3:021:38:290
7450910,0irq/46-4a10000024183-21latency_hist21:28:390
7450910,0irq/46-4a10000020805-21/usr/sbin/munin21:19:190
7450910,0irq/46-4a1000002020-21chrt20:23:470
7450910,0irq/46-4a10000019466-21grep21:14:020
7450910,0irq/46-4a10000014583-21meminfo19:24:160
7450910,0irq/46-4a10000014273-21forks00:09:020
7450910,0irq/46-4a10000014273-21df_inode20:58:590
7450910,0irq/46-4a10000013061-21grep22:29:310
7450910,0irq/46-4a10000012302-21aten_r4power_en20:53:480
7450910,0irq/46-4a10000011148-21chrt20:49:180
7450910,0irq/46-4a10000010466-21munin-node19:13:570
7450910,0irq/46-4a10000010426-21sendmail-msp23:59:000
7350910,0irq/45-4a100000559-21sed20:18:550
228102919,0sleep022811-21diskstats22:59:030
7450900,0irq/46-4a100000693-21fschecks_time23:29:030
7450900,0irq/46-4a1000004575-21tr23:39:480
7450890,0irq/46-4a10000031669-21missed_timers23:24:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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