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2026-05-06 - 06:20
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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 Wed May 06, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
148532663128,0sleep020517-21kworker/0:018:59:460
7350870,0irq/45-4a100000414-21df_abs21:25:000
7450860,0irq/46-4a10000018416-1kworker/u3:219:11:490
7450850,0irq/46-4a10000027605-21wget00:19:550
7450840,0irq/46-4a10000029051-21cron19:39:420
7450840,0irq/46-4a10000026425-21memory00:15:260
7450840,0irq/46-4a10000018378-21ls19:09:490
7350840,0irq/45-4a1000004882-21runrttasks20:02:390
7450830,0irq/46-4a1000003279-1kworker/u3:021:35:080
7450830,0irq/46-4a10000032488-21ls21:24:420
7450830,0irq/46-4a100000234572sleep019:20:480
7450830,0irq/46-4a10000020475-21seq22:24:220
7450830,0irq/46-4a10000020325-1kworker/u3:120:59:070
7450830,0irq/46-4a10000014664-21runrttasks22:05:360
7450830,0irq/46-4a10000011992-21ls21:59:430
7350830,0irq/45-4a1000007022-21aten_r4power_en20:09:530
7350830,0irq/45-4a10000030770-21cron00:29:410
271712830,0chrt26842-1kworker/u3:021:08:210
7450820,0irq/46-4a1000008920-21df_abs20:15:010
7450820,0irq/46-4a1000006975-21wc23:19:460
7450820,0irq/46-4a1000006145-21grep23:15:350
7450820,0irq/46-4a100000460-21snmpd19:42:500
7450820,0irq/46-4a10000024895-21seq19:25:460
7450820,0irq/46-4a10000023833-1kworker/u3:022:37:230
7450820,0irq/46-4a10000023279-21switchtime22:30:380
7450820,0irq/46-4a10000021164-21irqstats20:50:170
7450820,0irq/46-4a1000001875-21aten_r4power_cu19:54:520
7450820,0irq/46-4a10000016993-1kworker/u3:220:40:090
7350820,0irq/45-4a10000031126-21df22:54:590
7350820,0irq/45-4a10000030790-21idleruntime-cro21:19:420
73072820,0chrt6972-1kworker/u3:221:45:070
325152820,0sleep030916-1kworker/u3:200:34:430
7450810,0irq/46-4a1000005922-21ntpdc20:05:280
7450810,0irq/46-4a100000486-21tune2fs19:50:080
7450810,0irq/46-4a100000460-21snmpd21:13:260
7450810,0irq/46-4a100000460-21snmpd19:17:400
7450810,0irq/46-4a10000032591-21latency_hist22:59:460
7450810,0irq/46-4a10000027941-21fw_forwarded_lo22:45:130
7450810,0irq/46-4a10000024767-21ntpq00:10:320
7450810,0irq/46-4a10000021922-1kworker/u3:100:04:340
7450810,0irq/46-4a1000002068-21chrt23:04:580
7450810,0irq/46-4a10000019568-21missed_timers20:45:270
7450810,0irq/46-4a10000019413-21tune2fs23:55:120
7450810,0irq/46-4a10000019082-1kworker/u3:022:27:200
7450810,0irq/46-4a10000017533-21df_inode23:50:010
7450810,0irq/46-4a10000017429-21cstates22:14:580
7450810,0irq/46-4a10000015528-21/usr/sbin/munin23:45:360
7450810,0irq/46-4a10000013788-21latency_hist20:29:460
7350810,0irq/45-4a1000003855-21sed23:10:020
7350810,0irq/45-4a10000011963-21seq23:34:410
88792807,0sleep08903-21df23:24:580
7450800,0irq/46-4a1000009918-21runrttasks21:52:000
7450800,0irq/46-4a1000006698-21sshd21:43:310
7450800,0irq/46-4a10000031068-21runrttasks19:44:570
7450800,0irq/46-4a10000029306-21aten_r4power_vo22:49:550
7450800,0irq/46-4a10000026973-1kworker/u3:222:42:110
7450800,0irq/46-4a10000024379-21df_inode21:00:040
7450800,0irq/46-4a1000002065-21seq21:30:000
7450800,0irq/46-4a10000015830-21df_inode20:35:030
7450800,0irq/46-4a10000014640-21seq23:40:350
7450800,0irq/46-4a10000012272-21/usr/sbin/munin21:59:550
7450800,0irq/46-4a10000012200-21aten_r4power_po23:34:520
7450800,0irq/46-4a10000010408-21/usr/sbin/munin20:20:310
7450790,0irq/46-4a10000023233-21mailstats00:05:390
7450790,0irq/46-4a10000016386-1kworker/u3:119:30:130
7450790,0irq/46-4a10000012078-21wc20:24:460
7450780,0irq/46-4a10000016353-21run-parts22:10:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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