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2025-12-13 - 12:46
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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 Sat Dec 13, 2025 00:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
718923740,8sleep1201rcuc/119:05:201
77622205155,24sleep00-21swapper/019:08:370
75492199162,24sleep30-21swapper/319:05:513
55352188153,23sleep20-21swapper/219:05:012
797799160,15cyclictest3912-21/usr/sbin/munin22:25:112
797799150,14cyclictest6762-21awk21:20:172
797799150,14cyclictest0-21swapper/222:10:142
797799150,14cyclictest0-21swapper/220:10:012
7964991513,1cyclictest9-21ksoftirqd/022:30:010
797799140,13cyclictest6526-21grep20:12:242
797799140,13cyclictest29728-21cut23:20:012
797799140,13cyclictest26143-21apt-get20:55:122
797799140,13cyclictest0-21swapper/223:05:122
797799140,13cyclictest0-21swapper/200:30:162
233512140,0sleep30-21swapper/321:55:163
797799130,13cyclictest0-21swapper/200:15:102
797799130,12cyclictest3241-21ntpq23:30:142
797799130,12cyclictest30113-21sed21:00:212
797799130,12cyclictest24435-21perl20:50:132
797799130,12cyclictest10919-21users23:45:172
797799130,12cyclictest0-21swapper/222:20:012
797799130,12cyclictest0-21swapper/221:25:152
797799130,12cyclictest0-21swapper/219:50:152
797799130,12cyclictest0-21swapper/219:45:142
797799130,11cyclictest24243-21cat22:00:012
796499133,5cyclictest13706-21sed23:55:010
13622130,1sleep31366-21pmu-power20:02:223
7977991210,1cyclictest28-21ksoftirqd/222:45:012
797799120,9cyclictest16171-21cut19:25:132
797799120,12cyclictest0-21swapper/222:00:172
797799120,12cyclictest0-21swapper/219:35:122
797799120,12cyclictest0-21swapper/200:10:092
797799120,11cyclictest1145-21seq20:00:272
797799120,11cyclictest0-21swapper/223:35:152
797799120,11cyclictest0-21swapper/219:40:132
797799119,1cyclictest28-21ksoftirqd/200:05:012
797799111,9cyclictest13562-21apt-get19:20:112
797799110,9cyclictest0-21swapper/222:05:132
797799110,11cyclictest0-21swapper/222:31:492
796499119,1cyclictest9-21ksoftirqd/021:00:010
796499118,1cyclictest9-21ksoftirqd/022:10:010
796499118,1cyclictest9-21ksoftirqd/021:45:010
798399109,1cyclictest35-21ksoftirqd/300:20:013
798399108,1cyclictest35-21ksoftirqd/320:45:013
797799105,4cyclictest10765-21perf22:40:012
797799100,8cyclictest12902-21cstates21:35:132
796499108,1cyclictest9-21ksoftirqd/023:00:010
79839997,1cyclictest35-21ksoftirqd/322:19:143
79779993,4cyclictest240-21systemd-journal20:40:012
79779990,8cyclictest31078-21awk23:20:192
79779990,8cyclictest28438-21cpu00:25:092
79779990,8cyclictest27734-21taskset00:23:512
79779990,7cyclictest0-21swapper/221:52:282
79779990,6cyclictest240-21systemd-journal00:40:012
79779990,5cyclictest10219-21/usr/sbin/munin21:30:122
79649997,1cyclictest9-21ksoftirqd/023:10:010
79649990,8cyclictest8403-21munin-run22:35:010
79839986,1cyclictest707-21snmpd23:28:103
79839986,1cyclictest707-21snmpd21:52:583
79839986,1cyclictest707-21snmpd21:14:033
79839986,1cyclictest707-21snmpd20:50:143
79839986,1cyclictest707-21snmpd20:14:403
79839986,1cyclictest707-21snmpd20:07:313
79839986,1cyclictest707-21snmpd19:40:573
79839986,1cyclictest707-21snmpd00:02:593
79839986,1cyclictest35-21ksoftirqd/319:20:013
79779986,1cyclictest61650irq/122-eno121:45:142
79779983,4cyclictest20463-21aten_r1power_en23:00:122
79779983,4cyclictest19334-21expr20:40:142
79779983,4cyclictest15269-21ntpq20:30:172
79779983,4cyclictest13916-21fschecks_count22:45:112
79779982,5cyclictest31651-21expr21:05:152
79779981,7cyclictest0-21swapper/223:55:102
79779981,6cyclictest8158-21apt-get19:10:102
79779981,6cyclictest11547-21apt-get23:50:082
79779980,7cyclictest1929-21ntpq21:10:172
79779980,7cyclictest1891-21sshd22:20:142
79779980,7cyclictest11249-21aten2.4-expect19:15:132
79779980,7cyclictest0-21swapper/223:40:172
79779980,5cyclictest240-21systemd-journal20:00:012
79689988,0cyclictest0-21swapper/120:30:411
79689980,4cyclictest0-21swapper/122:15:171
79649986,1cyclictest9-21ksoftirqd/023:20:010
79649986,1cyclictest9-21ksoftirqd/000:20:010
79649986,1cyclictest707-21snmpd22:50:540
79649986,1cyclictest707-21snmpd22:24:260
79649986,1cyclictest707-21snmpd21:48:310
79649986,1cyclictest707-21snmpd21:26:310
79649986,1cyclictest707-21snmpd21:20:180
79649986,1cyclictest707-21snmpd19:30:120
79649986,1cyclictest707-21snmpd19:30:120
79649986,1cyclictest707-21snmpd19:24:060
79649986,1cyclictest707-21snmpd00:25:150
79649986,1cyclictest707-21snmpd00:08:560
79649986,1cyclictest707-21snmpd00:01:110
79649984,0cyclictest0-21swapper/022:00:090
79649980,7cyclictest19981-21irqstats20:40:170
79649980,4cyclictest1190-21perf00:40:010
79839976,1cyclictest707-21snmpd19:14:423
79839976,1cyclictest35-21ksoftirqd/323:25:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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