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2026-04-16 - 10:04
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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 100 highest latencies:
System rack4slot2.osadl.org (updated Thu Apr 16, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25734211950,0chrt24335-1kworker/u3:019:02:380
7450940,0irq/46-4a10000010052-21df_inode23:00:510
7450930,0irq/46-4a1000003365-21seq19:31:000
7450930,0irq/46-4a10000030195-21date20:50:330
7450930,0irq/46-4a10000012047-21load23:06:080
227882930,0sleep021475-1kworker/u3:120:26:320
7450920,0irq/46-4a1000008093-21aten_r4power_en22:55:420
7450920,0irq/46-4a1000007838-21seq19:45:020
7450920,0irq/46-4a100000447-21threads20:56:270
7450920,0irq/46-4a10000031114-21mailstats20:51:240
7450920,0irq/46-4a10000010044-21df_inode21:25:490
7450910,0irq/46-4a1000009061-21sed21:21:280
7450910,0irq/46-4a1000007293-21timerandwakeup22:51:280
7450910,0irq/46-4a1000006517-21/usr/sbin/munin21:15:440
7450910,0irq/46-4a10000031302-21grep19:16:290
7450910,0irq/46-4a10000028779-21df19:11:040
7450910,0irq/46-4a10000026629-1kworker/u3:120:45:280
7450910,0irq/46-4a10000026222-21cut19:05:340
7450910,0irq/46-4a10000025002-21munin-run20:35:300
7450910,0irq/46-4a10000020578-21load23:31:070
7450910,0irq/46-4a10000016776-21df21:45:420
7450910,0irq/46-4a10000011167-21runrttasks19:54:260
16672910,0sleep030566-1kworker/u3:122:35:590
7450900,0irq/46-4a1000008643-21meminfo00:31:090
7450900,0irq/46-4a1000006295-21ls00:25:320
7450900,0irq/46-4a1000005165-1kworker/u3:222:48:190
7450900,0irq/46-4a100000460-21snmpd22:25:520
7450900,0irq/46-4a10000032402-21fschecks_time00:06:000
7450900,0irq/46-4a1000002799-21runrttasks21:05:300
7450900,0irq/46-4a1000002595-21sshd19:29:070
7450900,0irq/46-4a10000025707-21sort22:11:110
7450900,0irq/46-4a10000023941-21irqstats23:41:040
7450900,0irq/46-4a10000022233-21runrttasks23:36:040
7450900,0irq/46-4a10000021581-21munin-plugin-st20:25:300
7450900,0irq/46-4a10000020209-21df21:55:460
7450900,0irq/46-4a10000016199-21runrttasks20:08:410
7450900,0irq/46-4a10000014016-21which23:11:250
7450900,0irq/46-4a10000013615-21chrt20:00:580
7450890,0irq/46-4a1000007942-1kworker/u3:219:47:340
7450890,0irq/46-4a1000005318-21ntpq19:36:170
7450890,0irq/46-4a1000005016-21fschecks_count00:20:570
7450890,0irq/46-4a10000032672-1kworker/u3:100:12:430
7450890,0irq/46-4a10000032606-21grep19:21:150
7450890,0irq/46-4a10000032168-21runrttasks22:30:470
7450890,0irq/46-4a10000031431-21chrt00:02:140
7450890,0irq/46-4a10000028534-21grep23:55:350
7450890,0irq/46-4a10000027352-21irqstats23:51:050
7450890,0irq/46-4a10000026051-21sort23:46:270
7450890,0irq/46-4a10000023681-21df_abs22:05:480
7450890,0irq/46-4a10000022938-21seq22:02:440
7450890,0irq/46-4a10000019875-21latency_hist20:20:290
7450890,0irq/46-4a10000018811-21irqstats21:51:060
7450890,0irq/46-4a10000014080-21/usr/sbin/munin21:36:240
7450890,0irq/46-4a10000012345-21sensors_temp21:31:240
7450880,0irq/46-4a1000005230-21memory21:11:140
7450880,0irq/46-4a100000460-21snmpd22:15:450
7450880,0irq/46-4a1000003372-21perl22:41:000
7450880,0irq/46-4a1000003257-21cat00:15:540
7450880,0irq/46-4a10000028574-21aten_r4power_cu22:20:380
7450880,0irq/46-4a10000025440-21sshd20:35:500
7450880,0irq/46-4a10000018738-21fw_forwarded_lo23:26:010
7450880,0irq/46-4a10000018228-21cut23:25:320
7450880,0irq/46-4a10000017376-21rt-features20:11:220
7450880,0irq/46-4a10000016435-21cron21:45:290
7450880,0irq/46-4a10000015194-21diskstats23:15:530
7450880,0irq/46-4a10000011465-21aten_r4power_cu19:55:400
7450860,0irq/46-4a1000002907-21/usr/sbin/munin21:06:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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