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2025-11-26 - 15:38
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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 Wed Nov 26, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501990,0irq/46-4a100000392-21runrttasks07:04:380
7350910,0irq/45-4a10000031347-21meminfo08:33:550
866999068,0cyclictest0-21swapper11:39:000
866998956,0cyclictest0-21swapper11:13:310
866998868,0cyclictest0-21swapper10:03:270
866998859,0cyclictest0-21swapper07:09:020
866998857,0cyclictest0-21swapper07:18:260
7350880,0irq/45-4a10000013781-21apt-get12:30:220
866998755,0cyclictest0-21swapper08:23:280
7450870,0irq/46-4a10000013852-21wget10:53:240
7350870,0irq/45-4a1000007152-1kworker/u3:310:36:270
7350870,0irq/45-4a10000025565-21apt-get09:54:530
7350860,0irq/45-4a1000009836-21users12:14:130
7350860,0irq/45-4a10000011779-1kworker/u3:110:47:270
866998556,0cyclictest0-21swapper07:29:430
866998554,0cyclictest0-21swapper08:58:510
866998553,0cyclictest0-21swapper08:53:420
866998464,0cyclictest0-21swapper07:14:190
866998453,0cyclictest0-21swapper11:23:580
7350840,0irq/45-4a1000004711-21/usr/sbin/munin12:00:100
7350840,0irq/45-4a10000029767-21grep08:29:490
7350840,0irq/45-4a10000020031-1kworker/u3:008:04:120
7350840,0irq/45-4a10000012329-21fschecks_count09:13:390
866998358,0cyclictest0-21swapper07:25:180
866998353,0cyclictest0-21swapper08:18:180
7450830,0irq/46-4a10000023740-21ls08:13:070
7350830,0irq/45-4a10000032178-21seq11:45:200
7350830,0irq/45-4a10000012-21ksoftirqd/011:09:240
866998258,0cyclictest0-21swapper07:42:260
866998252,0cyclictest0-21swapper10:32:100
866998249,0cyclictest0-21swapper08:39:200
7450820,0irq/46-4a100000443-21snmpd09:08:560
7450820,0irq/46-4a1000001860-21chrt10:18:240
7450820,0irq/46-4a10000014808-21sshd09:19:150
164822820,0sleep014816-1kworker/u3:207:49:590
7450810,0irq/46-4a10000028357-21mailstats11:34:050
7450810,0irq/46-4a1000002359-21seq08:43:590
7450810,0irq/46-4a10000016967-21seq07:53:110
7450810,0irq/46-4a10000015576-21wc09:23:300
7450810,0irq/46-4a10000012034-21date10:48:100
7450810,0irq/46-4a1000001061-21grep11:49:070
7350810,0irq/45-4a1000008017-21cat12:09:080
7350810,0irq/45-4a1000004351-1kworker/u3:412:04:550
7350810,0irq/45-4a10000031276-21cut10:08:420
7350810,0irq/45-4a10000023488-21/usr/sbin/munin09:45:170
7350810,0irq/45-4a10000015645-21wc10:58:260
7350810,0irq/45-4a10000012-21ksoftirqd/009:52:410
220482810,0sleep029819-1kworker/u3:409:42:210
866998053,0cyclictest0-21swapper11:32:330
7450800,0irq/46-4a100000705-21meminfo10:14:010
7450800,0irq/46-4a1000003469-21aten_r4power_en08:48:230
7450800,0irq/46-4a10000028021-21meminfo09:58:540
7450800,0irq/46-4a10000023920-21chrt08:13:230
7450800,0irq/46-4a10000012592-21tune2fs12:23:390
7350800,0irq/45-4a10000015161-21apt07:48:070
7450790,0irq/46-4a1000009215-21/usr/sbin/munin09:03:590
7450790,0irq/46-4a1000008720-21aten_r4power_en10:38:280
7450790,0irq/46-4a1000004601-21seq10:24:110
7450790,0irq/46-4a100000443-21snmpd09:34:120
7450790,0irq/46-4a1000002442-21runrttasks11:53:480
7450790,0irq/46-4a10000022392-21chrt11:18:210
7350790,0irq/45-4a1000009603-1kworker/u3:007:33:330
7450780,0irq/46-4a10000018694-21latency_hist07:58:110
7350780,0irq/45-4a10000017623-21uniq11:03:380
109952780,0sleep010047-1kworker/u3:112:18:460
7450770,0irq/46-4a10000017480-21diskstats09:28:460
7350770,0irq/45-4a10000016031-21grep12:33:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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