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2026-04-07 - 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 Tue Apr 07, 2026 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179882216150,22sleep20-21swapper/219:08:392
180072206150,22sleep10-21swapper/119:08:541
180212205155,24sleep00-21swapper/019:09:050
179992201162,25sleep30-21swapper/319:08:473
69692690,0sleep00-21swapper/021:00:140
252752190,0sleep00-21swapper/019:20:180
18180991413,1cyclictest9-21ksoftirqd/021:45:000
246992130,0sleep20-21swapper/222:50:142
18180991312,1cyclictest9-21ksoftirqd/000:24:590
18180991311,1cyclictest9-21ksoftirqd/020:40:010
1820599110,5cyclictest0-21swapper/300:20:113
1818999110,3cyclictest0-21swapper/121:40:121
18180991110,1cyclictest9-21ksoftirqd/023:25:000
18180991110,1cyclictest9-21ksoftirqd/022:10:000
18180991110,1cyclictest9-21ksoftirqd/021:35:130
1820599109,1cyclictest3858-21idleruntime-cro00:30:013
1819799108,1cyclictest28-21ksoftirqd/220:50:002
1819799101,8cyclictest61650irq/122-eno121:12:492
1818099108,1cyclictest9-21ksoftirqd/022:00:000
1818099100,5cyclictest0-21swapper/022:25:110
182059990,5cyclictest0-21swapper/319:55:113
182059990,4cyclictest0-21swapper/321:40:123
182059990,3cyclictest0-21swapper/322:35:123
182059990,1cyclictest0-21swapper/321:55:123
181979999,0cyclictest0-21swapper/200:15:222
181979990,5cyclictest0-21swapper/223:35:182
181899990,0cyclictest0-21swapper/122:50:121
181809999,0cyclictest9-21ksoftirqd/020:40:100
181809998,1cyclictest9-21ksoftirqd/022:50:110
181809998,1cyclictest9-21ksoftirqd/000:15:000
181809997,1cyclictest9-21ksoftirqd/023:10:130
181809992,1cyclictest9-21ksoftirqd/023:00:210
182059987,1cyclictest35-21ksoftirqd/319:50:003
182059983,4cyclictest28357-21apt-get22:55:103
182059980,2cyclictest240-21systemd-journal22:55:003
181979987,1cyclictest28-21ksoftirqd/221:05:002
181979986,1cyclictest61650irq/122-eno122:35:112
181979986,1cyclictest61650irq/122-eno122:05:222
181979986,1cyclictest61650irq/122-eno121:20:132
181979986,1cyclictest61650irq/122-eno119:59:592
181979986,1cyclictest61650irq/122-eno119:25:192
181979986,1cyclictest61650irq/122-eno100:10:132
181979986,1cyclictest20988-21cat20:20:172
181979986,1cyclictest13982-21tune2fs00:00:132
181899980,4cyclictest0-21swapper/123:46:071
181809988,0cyclictest9-21ksoftirqd/023:45:120
181809987,1cyclictest9-21ksoftirqd/023:50:150
181809987,1cyclictest9-21ksoftirqd/023:40:100
181809987,1cyclictest9-21ksoftirqd/023:35:200
181809987,1cyclictest9-21ksoftirqd/023:15:120
181809987,1cyclictest9-21ksoftirqd/023:05:110
181809987,1cyclictest9-21ksoftirqd/022:55:140
181809987,1cyclictest9-21ksoftirqd/022:40:100
181809987,1cyclictest9-21ksoftirqd/022:15:200
181809987,1cyclictest9-21ksoftirqd/000:25:190
181809987,1cyclictest13710-21ssh21:53:180
181809986,1cyclictest9-21ksoftirqd/022:45:180
181809986,1cyclictest9-21ksoftirqd/022:10:150
181809986,1cyclictest9-21ksoftirqd/000:35:390
181809986,1cyclictest19854-21ls20:19:590
181809981,6cyclictest22270-21perf20:25:000
181809981,6cyclictest20485-21ssh22:00:520
181809980,7cyclictest20436-21uname23:25:200
181809980,7cyclictest20436-21uname23:25:190
181809980,4cyclictest15230-21ssh21:15:000
181809980,1cyclictest20189-21ssh00:07:570
15543280,0sleep011272-21diskmemload00:01:140
3107270,1sleep10-21swapper/123:04:281
182059977,0cyclictest35-21ksoftirqd/321:36:503
182059976,1cyclictest9096-21ssh23:54:303
182059976,0cyclictest0-21swapper/322:19:593
182059974,1cyclictest240-21systemd-journal23:37:273
182059974,1cyclictest240-21systemd-journal22:15:003
182059973,2cyclictest7597-21/usr/sbin/munin21:00:153
182059973,2cyclictest240-21systemd-journal00:09:593
182059973,1cyclictest11272-21diskmemload21:10:423
182059972,2cyclictest11272-21diskmemload21:15:113
182059970,5cyclictest19021-21df_inode22:00:143
182059970,4cyclictest240-21systemd-journal23:45:003
182059970,4cyclictest20711-21munin-run19:15:003
182059970,3cyclictest32207-21apt-get23:00:123
182059970,2cyclictest7446-21apt-get23:10:093
182059970,1cyclictest0-21swapper/321:45:103
181979977,0cyclictest0-21swapper/200:06:492
181979976,1cyclictest61650irq/122-eno123:32:562
181979976,1cyclictest61650irq/122-eno123:29:112
181979976,1cyclictest61650irq/122-eno123:29:112
181979976,1cyclictest61650irq/122-eno123:20:092
181979976,1cyclictest61650irq/122-eno123:01:362
181979976,1cyclictest61650irq/122-eno122:58:282
181979976,1cyclictest61650irq/122-eno122:45:022
181979976,1cyclictest61650irq/122-eno122:25:132
181979976,1cyclictest61650irq/122-eno121:40:202
181979976,1cyclictest61650irq/122-eno119:35:122
181979976,1cyclictest61650irq/122-eno100:39:042
181979976,1cyclictest61650irq/122-eno100:30:132
181979976,1cyclictest61650irq/122-eno100:26:442
181979976,1cyclictest28-21ksoftirqd/223:57:512
181979976,0cyclictest61650irq/122-eno123:05:202
181979976,0cyclictest61650irq/122-eno122:10:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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