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2025-12-01 - 09:19
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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 Mon Dec 01, 2025 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
180672230159,24sleep30-21swapper/319:05:523
182022211157,42sleep00-21swapper/019:07:340
180812201162,26sleep20-21swapper/219:06:032
162122200161,26sleep10-21swapper/119:05:001
291722120,0sleep20-21swapper/222:19:122
18499991110,0cyclictest28-21ksoftirqd/200:00:002
1849199110,11cyclictest0-21swapper/100:25:191
18483991110,1cyclictest9-21ksoftirqd/000:33:510
1849999101,8cyclictest1497-21sendmail-mta22:00:512
1848399109,1cyclictest9-21ksoftirqd/021:19:490
1848399108,1cyclictest9-21ksoftirqd/021:30:000
18483991010,0cyclictest9-21ksoftirqd/021:52:350
148782100,0sleep30-21swapper/321:14:413
185049998,1cyclictest35-21ksoftirqd/300:35:003
184999998,1cyclictest28-21ksoftirqd/221:19:262
184999997,1cyclictest28-21ksoftirqd/223:35:342
184999990,5cyclictest5843-21proc_pri22:30:202
184839998,1cyclictest9-21ksoftirqd/022:50:000
184839990,6cyclictest26919-21/usr/sbin/munin00:35:230
184839990,6cyclictest26919-21/usr/sbin/munin00:35:220
184839990,6cyclictest0-21swapper/021:10:120
17790290,0sleep10-21swapper/120:14:561
25166280,0sleep10-21swapper/122:12:351
2234280,1sleep10-21swapper/123:55:281
185049985,2cyclictest11393-21diskmemload00:13:363
185049982,4cyclictest742-21runrttasks22:15:273
185049980,5cyclictest841-21nscd22:56:213
185049980,4cyclictest1017-21apt-get22:25:133
184999987,1cyclictest28-21ksoftirqd/222:10:582
184999986,1cyclictest60950irq/123-eno123:50:172
184999986,1cyclictest60950irq/123-eno122:55:012
184999986,1cyclictest28-21ksoftirqd/220:04:592
184999982,4cyclictest11393-21diskmemload23:05:132
184999980,8cyclictest0-21swapper/223:11:592
184919981,3cyclictest0-21swapper/122:45:131
184919980,5cyclictest0-21swapper/123:16:011
184919980,4cyclictest0-21swapper/120:25:131
184839987,1cyclictest9-21ksoftirqd/000:07:280
184839986,1cyclictest30458-21gltestperf22:20:130
184839986,1cyclictest20956-21ssh21:20:510
184839984,4cyclictest4312-21awk20:55:010
184839983,4cyclictest0-21swapper/021:40:000
184839983,1cyclictest0-21swapper/000:00:180
184839981,5cyclictest254-21systemd-journal00:19:550
184839981,4cyclictest11393-21diskmemload22:34:450
184839980,6cyclictest12127-21apt-get21:55:150
27418270,0sleep10-21swapper/123:45:221
185049976,1cyclictest35-21ksoftirqd/322:35:173
185049976,1cyclictest35-21ksoftirqd/320:01:313
185049976,1cyclictest18929-21cpuspeed_turbos22:50:163
185049975,1cyclictest9624-21ssh23:20:273
185049974,1cyclictest570-21systemd-logind22:30:223
185049974,1cyclictest254-21systemd-journal22:50:013
185049973,2cyclictest254-21systemd-journal20:00:003
185049972,3cyclictest35-21ksoftirqd/322:00:063
185049971,3cyclictest35-21ksoftirqd/321:46:253
185049970,4cyclictest30163-21/usr/sbin/munin23:50:163
185049970,4cyclictest16296-21apt-get00:20:103
185049970,2cyclictest0-21swapper/323:55:563
184999976,1cyclictest60950irq/123-eno123:45:212
184999976,1cyclictest60950irq/123-eno123:18:532
184999976,1cyclictest60950irq/123-eno123:00:162
184999976,1cyclictest60950irq/123-eno122:40:152
184999976,1cyclictest60950irq/123-eno121:56:482
184999976,1cyclictest60950irq/123-eno100:36:552
184999976,1cyclictest60950irq/123-eno100:36:552
184999976,1cyclictest60950irq/123-eno100:17:052
184999976,1cyclictest11393-21diskmemload21:25:152
184999976,0cyclictest60950irq/123-eno123:42:522
184999976,0cyclictest60950irq/123-eno121:45:212
184999975,1cyclictest60950irq/123-eno121:34:222
184999975,1cyclictest60950irq/123-eno119:14:592
184999975,1cyclictest18252-21ssh00:20:532
184999974,2cyclictest16437-21grep22:45:202
184999974,2cyclictest11393-21diskmemload21:20:112
184999973,2cyclictest254-21systemd-journal00:02:152
184999973,1cyclictest254-21systemd-journal22:50:432
184999972,4cyclictest788-21lldpd23:21:142
184999971,4cyclictest28-21ksoftirqd/222:27:282
184999970,6cyclictest26639-21apt00:35:012
184999970,6cyclictest0-21swapper/221:00:152
184999970,4cyclictest8510-21sh00:08:282
184999970,3cyclictest254-21systemd-journal20:34:592
184999970,3cyclictest0-21swapper/219:20:152
184999970,1cyclictest19177-21ssh22:05:132
184919970,5cyclictest0-21swapper/123:30:571
184919970,4cyclictest0-21swapper/122:25:211
184919970,3cyclictest0-21swapper/121:10:121
184919970,1cyclictest0-21swapper/123:25:211
184919970,1cyclictest0-21swapper/122:00:181
184839976,1cyclictest9-21ksoftirqd/023:50:000
184839976,1cyclictest9-21ksoftirqd/019:40:120
184839976,1cyclictest6938-21cat19:50:170
184839975,1cyclictest1689-21ssh23:10:180
184839975,1cyclictest0-21swapper/023:25:150
184839974,2cyclictest11393-21diskmemload22:39:050
184839973,3cyclictest29467-21apt-get23:05:130
184839973,2cyclictest570-21systemd-logind21:30:210
184839973,2cyclictest11393-21diskmemload23:20:130
184839973,0cyclictest0-21swapper/019:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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