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2026-07-01 - 05:41
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Wed Jul 01, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
318842233159,24sleep20-21swapper/219:06:332
318982219157,23sleep10-21swapper/119:06:451
319222210159,25sleep00-21swapper/019:07:050
318282200160,26sleep30-21swapper/319:05:513
298722490,0sleep10-21swapper/121:15:161
130842220,1sleep121-21ksoftirqd/100:35:181
32238991615,1cyclictest9-21ksoftirqd/020:15:000
3223899119,1cyclictest9-21ksoftirqd/023:35:000
3223899114,4cyclictest1865-21cat22:50:000
3223899112,4cyclictest25082-21diskmemload23:10:000
3223899109,1cyclictest9-21ksoftirqd/023:20:000
3223899109,1cyclictest9-21ksoftirqd/000:30:000
3223899108,1cyclictest9-21ksoftirqd/020:50:000
3223899107,1cyclictest9-21ksoftirqd/020:45:000
3223899103,4cyclictest19693-21perf22:30:000
3223899101,4cyclictest22952-21perf21:50:000
322519990,3cyclictest24149-21/usr/sbin/munin23:20:203
322449995,3cyclictest0-21swapper/222:25:122
322449992,5cyclictest7499-21/usr/sbin/munin22:55:222
322389998,1cyclictest9-21ksoftirqd/022:45:000
322389997,1cyclictest9-21ksoftirqd/020:35:000
322389997,1cyclictest9-21ksoftirqd/019:40:010
322389990,5cyclictest6059-21cat23:40:010
322389990,4cyclictest22778-21perf21:05:000
322519987,1cyclictest18270-21sh22:25:553
322519986,1cyclictest14420-21cat20:45:153
322519982,5cyclictest31770-21apt-get20:15:113
322519980,6cyclictest0-21swapper/321:16:143
322519980,4cyclictest14662-21sh23:05:193
322449987,1cyclictest28-21ksoftirqd/222:10:002
322449986,1cyclictest61650irq/122-eno122:45:172
322449986,1cyclictest28-21ksoftirqd/220:50:002
322449982,5cyclictest26652-21sh23:22:302
322449980,8cyclictest0-21swapper/221:18:482
322449980,6cyclictest0-21swapper/223:02:322
322419980,6cyclictest203-21jbd2/sda2-822:30:051
322419980,4cyclictest0-21swapper/121:00:101
322389987,1cyclictest9-21ksoftirqd/023:14:270
322389987,1cyclictest9-21ksoftirqd/021:30:000
322389986,1cyclictest9-21ksoftirqd/022:35:190
322389986,1cyclictest9-21ksoftirqd/019:45:000
322389985,3cyclictest0-21swapper/020:15:200
322389981,6cyclictest14077-21cat22:20:200
322389981,6cyclictest0-21swapper/023:55:180
322389981,1cyclictest15469-21ssh00:39:550
322389980,7cyclictest31493-21memory22:00:170
322389980,7cyclictest21459-21timerandwakeup22:30:200
322389980,7cyclictest0-21swapper/022:50:160
19636280,0sleep20-21swapper/223:13:222
322519976,1cyclictest35-21ksoftirqd/320:21:113
322519976,1cyclictest12930-21cat21:35:143
322519975,1cyclictest3952-21cat19:15:153
322519975,1cyclictest10855-21taskset21:32:373
322519974,1cyclictest13650irq/124-ahci[0022:19:553
322519973,2cyclictest240-21systemd-journal20:36:203
322519973,1cyclictest5722-21apt-get22:55:103
322519972,3cyclictest32232-21cyclictest22:35:083
322519971,2cyclictest0-21swapper/321:10:123
322519971,1cyclictest17180-21/usr/sbin/munin23:55:113
322519970,4cyclictest920-21runrttasks22:03:383
322519970,4cyclictest0-21swapper/323:26:213
322519970,4cyclictest0-21swapper/321:40:043
322519970,3cyclictest0-21swapper/322:20:123
322519970,3cyclictest0-21swapper/300:08:473
322519970,2cyclictest240-21systemd-journal00:35:393
322519970,1cyclictest20290-21latency_hist23:15:003
322449977,0cyclictest28-21ksoftirqd/223:40:012
322449976,1cyclictest61650irq/122-eno121:10:172
322449976,1cyclictest61650irq/122-eno100:21:422
322449976,1cyclictest28-21ksoftirqd/221:40:002
322449976,1cyclictest28-21ksoftirqd/221:05:002
322449975,1cyclictest61650irq/122-eno121:55:122
322449975,1cyclictest61650irq/122-eno121:55:122
322449975,1cyclictest61650irq/122-eno121:30:152
322449975,1cyclictest61650irq/122-eno121:25:132
322449975,1cyclictest28-21ksoftirqd/220:20:002
322449975,1cyclictest14647-21perf19:40:002
322449974,3cyclictest61650irq/122-eno121:23:232
322449970,7cyclictest0-21swapper/223:38:442
322449970,4cyclictest21700-21munin-run19:55:002
322419973,4cyclictest0-21swapper/120:25:191
322419972,2cyclictest0-21swapper/123:21:261
322419970,5cyclictest203-21jbd2/sda2-820:41:241
322389976,1cyclictest3355-21ssh00:21:170
322389975,1cyclictest6212-21ssh22:55:120
322389975,1cyclictest31738-21ssh21:18:110
322389974,2cyclictest1140-21ntp_kernel_err19:10:180
322389974,2cyclictest10185-21ntpq22:15:160
322389973,1cyclictest240-21systemd-journal19:25:000
322389971,5cyclictest25352-21ssh21:10:120
322389970,6cyclictest8698-21irqstats19:25:150
322389970,6cyclictest30025-21apt-get00:15:120
322389970,6cyclictest28588-21ssh00:11:360
322389970,6cyclictest27868-21memory20:05:160
322389970,6cyclictest25907-21awk23:20:200
322389970,6cyclictest23704-21diskstats21:50:150
322389970,6cyclictest22524-21grep00:00:220
322389970,1cyclictest8830-21ssh23:42:370
322389970,1cyclictest25721-21ssh00:08:530
322389970,1cyclictest25082-21diskmemload23:46:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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