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2026-07-15 - 01:09
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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 Jul 14, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127842218158,27sleep30-21swapper/307:07:193
128162210159,25sleep00-21swapper/007:07:440
128382200160,26sleep20-21swapper/207:08:032
128372200161,26sleep10-21swapper/107:08:011
254332160,0sleep00-21swapper/012:32:490
160812130,0sleep00-21swapper/011:35:180
1308299130,12cyclictest0-21swapper/211:04:132
13091991110,1cyclictest35-21ksoftirqd/312:40:003
1308299119,1cyclictest28-21ksoftirqd/211:10:002
1308299119,1cyclictest28-21ksoftirqd/208:00:002
1308299110,10cyclictest0-21swapper/210:27:012
1307599110,10cyclictest0-21swapper/109:35:131
1307399113,4cyclictest24892-21latency_hist10:20:000
13073991110,1cyclictest9-21ksoftirqd/010:50:000
1309199109,1cyclictest35-21ksoftirqd/310:40:003
13091991010,0cyclictest35-21ksoftirqd/310:45:013
1308299109,1cyclictest28-21ksoftirqd/210:38:292
1308299109,1cyclictest28-21ksoftirqd/210:20:012
1308299109,1cyclictest28-21ksoftirqd/207:50:002
1308299108,1cyclictest28-21ksoftirqd/210:45:002
1308299100,1cyclictest0-21swapper/212:34:462
1307399109,1cyclictest9-21ksoftirqd/012:30:010
1307399103,6cyclictest4246-21kworker/u8:211:20:130
130919998,1cyclictest35-21ksoftirqd/309:45:013
130919997,1cyclictest35-21ksoftirqd/311:50:013
130919997,1cyclictest35-21ksoftirqd/311:40:133
130919997,1cyclictest35-21ksoftirqd/311:31:443
130919991,7cyclictest1982-21sendmail-mta11:58:103
130919990,1cyclictest0-21swapper/312:10:123
130829998,1cyclictest28-21ksoftirqd/209:35:142
130829998,1cyclictest28-21ksoftirqd/207:20:002
130829997,1cyclictest28-21ksoftirqd/208:25:002
130829997,1cyclictest28-21ksoftirqd/207:35:002
130829990,8cyclictest0-21swapper/210:30:382
1889280,0sleep10-21swapper/109:46:501
130919986,1cyclictest35-21ksoftirqd/309:00:113
130919985,1cyclictest240-21systemd-journal07:38:003
130919983,3cyclictest13789-1kworker/u9:210:50:173
130919980,1cyclictest0-21swapper/308:15:123
130829988,0cyclictest28-21ksoftirqd/209:55:212
130829986,1cyclictest61650irq/122-eno112:11:212
130829986,1cyclictest61650irq/122-eno111:50:212
130829986,1cyclictest61650irq/122-eno110:57:552
130829986,1cyclictest28-21ksoftirqd/211:20:142
130829986,1cyclictest28-21ksoftirqd/209:00:002
130829986,1cyclictest28-21ksoftirqd/208:30:002
130829986,1cyclictest28-21ksoftirqd/208:20:002
130829985,2cyclictest5721-21diskmemload11:15:162
130829982,5cyclictest185872sleep212:24:032
130829980,7cyclictest15631-21munin-node11:45:052
130829980,5cyclictest19267-21python10:10:192
130759980,4cyclictest0-21swapper/109:40:211
130759980,4cyclictest0-21swapper/107:45:131
130739987,1cyclictest9-21ksoftirqd/007:34:160
130739987,1cyclictest4652-21ssh12:05:060
130739984,0cyclictest0-21swapper/009:15:140
130739982,3cyclictest15442-21latency_hist07:15:000
130739981,6cyclictest20081-21ssh10:11:460
130739981,1cyclictest9618-21ssh10:42:040
130739980,7cyclictest1463-21ssh09:45:350
130739980,4cyclictest3888-21munin-run11:20:000
130739980,4cyclictest15350-21perf12:20:000
130739980,3cyclictest0-21swapper/010:05:140
130739980,3cyclictest0-21swapper/007:45:130
130739980,2cyclictest0-21swapper/009:25:130
130739980,1cyclictest31388-21ssh09:43:580
8695270,0sleep10-21swapper/109:13:371
130919976,1cyclictest35-21ksoftirqd/312:00:153
130919976,1cyclictest35-21ksoftirqd/310:25:013
130919976,1cyclictest35-21ksoftirqd/310:15:153
130919976,1cyclictest35-21ksoftirqd/310:05:003
130919976,1cyclictest35-21ksoftirqd/308:55:003
130919976,1cyclictest1307-21cat07:50:173
130919975,2cyclictest0-21swapper/312:32:443
130919975,1cyclictest6880-21/usr/sbin/munin09:55:203
130919975,1cyclictest4156-21cat09:50:143
130919975,1cyclictest17682-21ssh11:37:503
130919972,3cyclictest5721-21diskmemload10:30:173
130919971,4cyclictest0-21swapper/310:57:183
130919970,6cyclictest5721-21diskmemload09:10:113
130919970,6cyclictest0-21swapper/312:23:063
130829976,1cyclictest61650irq/122-eno111:30:462
130829976,1cyclictest61650irq/122-eno110:50:102
130829976,1cyclictest61650irq/122-eno110:20:112
130829976,1cyclictest61650irq/122-eno109:48:472
130829976,1cyclictest61650irq/122-eno109:27:272
130829976,1cyclictest61650irq/122-eno109:15:492
130829976,1cyclictest28-21ksoftirqd/208:40:002
130829976,1cyclictest11734-21ntpq10:00:182
130829976,0cyclictest61650irq/122-eno111:37:452
130829975,1cyclictest3972-21ssh09:50:142
130829975,1cyclictest28-21ksoftirqd/212:35:132
130829975,1cyclictest28-21ksoftirqd/208:40:122
130829975,1cyclictest28-21ksoftirqd/208:15:002
130829975,1cyclictest28-21ksoftirqd/207:35:152
130829975,1cyclictest28-21ksoftirqd/207:22:172
130829975,1cyclictest20920-21ssh11:41:362
130829974,1cyclictest240-21systemd-journal08:05:022
130829974,1cyclictest0-21swapper/212:15:232
130829972,2cyclictest693-21runrttasks10:45:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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