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2026-07-02 - 07:43
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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 Thu Jul 02, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
125012210139,25sleep00-21swapper/019:05:550
125592208153,21sleep10-21swapper/119:06:401
126992200160,26sleep20-21swapper/219:08:322
124992200150,25sleep30-21swapper/319:05:543
12905991514,1cyclictest35-21ksoftirqd/323:15:133
12892991412,1cyclictest9-21ksoftirqd/021:40:010
12892991412,1cyclictest9-21ksoftirqd/021:40:000
1290199130,12cyclictest11935-21/usr/sbin/munin23:30:162
1290199125,5cyclictest61650irq/122-eno123:15:182
12901991211,1cyclictest28-21ksoftirqd/222:10:002
12892991210,1cyclictest9-21ksoftirqd/019:45:000
1289299119,2cyclictest22018-21sh23:43:220
1289299119,1cyclictest9-21ksoftirqd/023:30:130
1289299119,1cyclictest6193-21diskmemload22:14:330
1289299112,6cyclictest4200-21kworker/u8:121:16:310
12892991110,1cyclictest9-21ksoftirqd/020:45:000
1289299111,5cyclictest22134-21perf20:35:000
1290599109,1cyclictest35-21ksoftirqd/322:05:003
1290599109,1cyclictest35-21ksoftirqd/320:50:013
1290599109,1cyclictest35-21ksoftirqd/320:00:003
12905991010,0cyclictest35-21ksoftirqd/319:15:003
1290199109,1cyclictest28-21ksoftirqd/223:55:012
12901991010,0cyclictest0-21swapper/223:46:582
1289299109,1cyclictest9-21ksoftirqd/023:00:140
1289299109,1cyclictest9-21ksoftirqd/022:50:130
1289299109,1cyclictest9-21ksoftirqd/022:20:130
1289299109,1cyclictest9-21ksoftirqd/021:59:530
1289299109,1cyclictest9-21ksoftirqd/000:20:150
1289299108,1cyclictest9-21ksoftirqd/022:35:210
12892991010,0cyclictest0-21swapper/019:39:520
1289299100,5cyclictest6206-21/usr/sbin/munin21:10:000
1289299100,4cyclictest240-21systemd-journal23:27:460
1289299100,4cyclictest0-21swapper/021:10:010
129059999,0cyclictest35-21ksoftirqd/300:15:143
129059998,1cyclictest35-21ksoftirqd/300:00:003
129059997,1cyclictest35-21ksoftirqd/322:35:123
129059990,7cyclictest6193-21diskmemload23:50:193
129059990,6cyclictest0-21swapper/322:10:103
129019998,1cyclictest28-21ksoftirqd/219:59:592
129019997,1cyclictest28-21ksoftirqd/220:15:002
128929999,0cyclictest9-21ksoftirqd/021:50:120
128929999,0cyclictest9-21ksoftirqd/021:20:150
128929998,1cyclictest9-21ksoftirqd/023:15:190
128929997,1cyclictest9-21ksoftirqd/022:00:130
128929991,7cyclictest6193-21diskmemload22:57:290
128929990,4cyclictest15505-21diskstats19:15:010
18746280,1sleep121-21ksoftirqd/120:25:191
129059988,0cyclictest35-21ksoftirqd/320:04:593
129059988,0cyclictest35-21ksoftirqd/319:35:003
129059987,1cyclictest35-21ksoftirqd/300:35:003
129059982,2cyclictest9928-21apt-get20:10:113
129059981,3cyclictest6193-21diskmemload23:00:153
129059980,5cyclictest240-21systemd-journal20:52:263
129059980,4cyclictest0-21swapper/321:45:023
129059980,3cyclictest0-21swapper/320:15:123
129019987,1cyclictest28-21ksoftirqd/221:30:132
129019987,1cyclictest28-21ksoftirqd/220:05:002
129019987,1cyclictest28-21ksoftirqd/219:45:002
129019987,1cyclictest28-21ksoftirqd/200:40:002
129019987,1cyclictest28-21ksoftirqd/200:15:002
129019986,1cyclictest61650irq/122-eno122:50:162
129019986,1cyclictest61650irq/122-eno122:30:182
129019986,1cyclictest61650irq/122-eno122:30:182
129019986,1cyclictest61650irq/122-eno121:50:112
129019986,1cyclictest61650irq/122-eno120:50:002
129019986,1cyclictest61650irq/122-eno100:00:172
129019986,1cyclictest3593-21latency_hist21:50:012
129019986,1cyclictest14406-21latency_hist22:05:012
129019981,1cyclictest0-21swapper/223:21:092
129019980,6cyclictest61650irq/122-eno121:37:012
129019980,6cyclictest61650irq/122-eno121:37:002
129019980,1cyclictest0-21swapper/221:24:352
128969980,2cyclictest0-21swapper/121:45:011
128929988,0cyclictest9-21ksoftirqd/023:10:160
128929988,0cyclictest9-21ksoftirqd/021:44:430
128929987,1cyclictest9-21ksoftirqd/023:35:150
128929987,1cyclictest9-21ksoftirqd/022:40:130
128929987,1cyclictest9-21ksoftirqd/022:30:010
128929987,1cyclictest9-21ksoftirqd/020:35:120
128929987,1cyclictest9-21ksoftirqd/019:23:540
128929987,1cyclictest9-21ksoftirqd/000:10:150
128929982,1cyclictest0-21swapper/021:00:200
128929981,2cyclictest16349-21awk20:20:190
128929981,1cyclictest240-21systemd-journal00:39:590
128929980,7cyclictest27259-21proc_pri23:05:190
128929980,7cyclictest25403-21cat22:20:010
128929980,7cyclictest22441-21kworker/0:123:50:180
128929980,7cyclictest20921-21/usr/sbin/munin19:25:210
128929980,4cyclictest6193-21diskmemload00:28:290
128929980,1cyclictest26786-21ssh00:34:310
129059977,0cyclictest35-21ksoftirqd/323:40:113
129059977,0cyclictest35-21ksoftirqd/322:10:013
129059977,0cyclictest35-21ksoftirqd/300:25:003
129059976,1cyclictest35-21ksoftirqd/323:15:003
129059976,1cyclictest35-21ksoftirqd/322:55:113
129059976,1cyclictest35-21ksoftirqd/321:05:013
129059976,1cyclictest35-21ksoftirqd/320:30:013
129059976,1cyclictest35-21ksoftirqd/320:25:003
129059976,1cyclictest35-21ksoftirqd/319:15:003
129059976,1cyclictest29083-21cat19:40:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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