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2026-08-05 - 10:29
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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 Aug 05, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322282203163,26sleep20-21swapper/219:09:002
322762199161,24sleep30-21swapper/319:09:373
320882199159,26sleep10-21swapper/119:07:111
321862198161,23sleep00-21swapper/019:08:250
204332670,0sleep30-21swapper/322:31:293
229982170,0sleep228-21ksoftirqd/221:50:152
32402991110,1cyclictest28-21ksoftirqd/222:40:002
32396991110,1cyclictest9-21ksoftirqd/000:05:450
137462110,0sleep20-21swapper/223:09:262
95742100,0sleep20-21swapper/222:16:122
3240299109,1cyclictest28-21ksoftirqd/220:40:012
3240299108,1cyclictest29630-21fschecks_count22:45:162
3239699109,1cyclictest9-21ksoftirqd/023:20:000
3239699109,1cyclictest9-21ksoftirqd/019:40:000
3239699102,4cyclictest20674-21cut00:05:000
324099998,1cyclictest35-21ksoftirqd/300:15:003
324099991,7cyclictest14749-21kworker/u8:022:26:423
324029998,1cyclictest28-21ksoftirqd/221:20:002
324029993,5cyclictest11028-21kworker/u8:222:50:122
324009990,6cyclictest0-21swapper/100:05:151
323969998,1cyclictest9-21ksoftirqd/021:20:140
323969998,1cyclictest9-21ksoftirqd/021:10:160
323969997,1cyclictest9-21ksoftirqd/019:25:000
323969990,3cyclictest0-21swapper/021:30:110
324099986,1cyclictest11301-21snmpd23:20:173
324099986,1cyclictest11301-21snmpd22:37:343
324099986,1cyclictest11301-21snmpd19:46:203
324099984,3cyclictest2327-21munin-node20:20:003
324099981,5cyclictest568-21nscd23:09:123
324099980,5cyclictest7534-21apt-get21:30:113
324099980,4cyclictest2668-21runrttasks23:39:393
324099980,4cyclictest0-21swapper/300:05:143
324029986,1cyclictest1747-21ntpd21:38:002
324029986,1cyclictest11301-21snmpd22:30:392
324029985,1cyclictest28-21ksoftirqd/219:14:562
324029984,2cyclictest240-21systemd-journal20:00:002
324029984,1cyclictest29597-21ssh00:15:212
324029980,6cyclictest21253-21/usr/sbin/munin23:20:132
324009980,5cyclictest0-21swapper/100:30:121
323969987,1cyclictest9-21ksoftirqd/021:50:000
323969987,1cyclictest25243-21diskmemload23:58:330
323969986,1cyclictest9-21ksoftirqd/021:25:300
323969986,1cyclictest11301-21snmpd22:38:360
323969986,1cyclictest11301-21snmpd21:16:060
323969986,1cyclictest11301-21snmpd19:48:370
323969986,1cyclictest11301-21snmpd19:10:030
323969986,1cyclictest11301-21snmpd00:25:330
323969983,4cyclictest11301-21snmpd23:43:400
323969982,3cyclictest17988-21perf21:45:000
323969981,1cyclictest0-21swapper/023:50:560
323969980,7cyclictest13385-21ssh22:22:050
323969980,7cyclictest10026-21latency_hist23:50:000
323969980,6cyclictest0-21swapper/000:32:140
323969980,4cyclictest1684-21grep20:20:010
13807280,0sleep10-21swapper/122:23:281
324099976,1cyclictest11301-21snmpd21:22:153
324099976,1cyclictest11301-21snmpd19:24:163
324099975,1cyclictest11301-21snmpd23:26:373
324099975,1cyclictest11301-21snmpd22:41:483
324099975,1cyclictest11301-21snmpd22:19:173
324099975,1cyclictest11301-21snmpd21:35:463
324099975,1cyclictest11301-21snmpd21:02:103
324099975,1cyclictest11301-21snmpd20:52:513
324099975,1cyclictest11301-21snmpd20:27:053
324099975,1cyclictest11301-21snmpd20:04:503
324099975,1cyclictest11301-21snmpd19:50:493
324099975,1cyclictest11301-21snmpd19:39:043
324099975,1cyclictest11301-21snmpd19:33:023
324099975,1cyclictest11301-21snmpd00:16:523
324099975,1cyclictest0-21swapper/300:25:133
324099973,3cyclictest30392-21python21:15:213
324099972,2cyclictest0-21swapper/323:49:593
324099972,1cyclictest25243-21diskmemload22:45:533
324099971,6cyclictest20678-21kworker/u8:122:52:253
324099971,5cyclictest11301-21snmpd00:30:073
324099971,3cyclictest25243-21diskmemload00:40:003
324099970,4cyclictest0-21swapper/320:45:103
324029976,1cyclictest61650irq/122-eno123:35:202
324029976,1cyclictest61650irq/122-eno123:00:172
324029976,1cyclictest61650irq/122-eno121:41:292
324029976,1cyclictest61650irq/122-eno100:30:112
324029976,1cyclictest61650irq/122-eno100:22:152
324029976,1cyclictest61650irq/122-eno100:05:232
324029976,1cyclictest28-21ksoftirqd/223:35:012
324029976,1cyclictest28-21ksoftirqd/222:30:002
324029976,1cyclictest11301-21snmpd23:25:432
324029976,0cyclictest61650irq/122-eno122:05:132
324029976,0cyclictest61650irq/122-eno121:30:142
324029975,1cyclictest61650irq/122-eno100:00:202
324029975,1cyclictest29361-21perf20:10:002
324029975,1cyclictest28-21ksoftirqd/219:35:122
324029975,1cyclictest11301-21snmpd20:54:042
324029975,1cyclictest11301-21snmpd20:29:092
324029975,1cyclictest11301-21snmpd00:35:442
324029974,2cyclictest11301-21snmpd21:58:312
324029974,2cyclictest11301-21snmpd21:58:312
324029970,4cyclictest0-21swapper/223:40:022
324029970,2cyclictest0-21swapper/219:45:122
324009977,0cyclictest21-21ksoftirqd/121:35:321
324009971,2cyclictest0-21swapper/123:00:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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