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2025-12-11 - 07:21
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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 Dec 11, 2025 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251032215153,48sleep20-21swapper/219:05:002
253242212149,22sleep00-21swapper/019:05:030
273932201162,26sleep10-21swapper/119:09:231
270982201143,46sleep30-21swapper/319:05:353
93252610,0sleep00-21swapper/023:10:000
231102600,0sleep10-21swapper/100:14:291
202882580,0sleep00-21swapper/022:39:400
227182570,0sleep30-21swapper/322:40:263
27513991817,1cyclictest9-21ksoftirqd/021:47:490
2751399150,14cyclictest0-21swapper/021:50:210
2751399130,13cyclictest0-21swapper/021:55:160
27522991211,1cyclictest28-21ksoftirqd/222:20:002
2752299120,12cyclictest20445-21diskmemload23:02:212
27513991211,1cyclictest9-21ksoftirqd/021:45:010
27513991210,1cyclictest9-21ksoftirqd/023:49:590
27513991210,1cyclictest9-21ksoftirqd/022:10:000
27522991110,1cyclictest28-21ksoftirqd/200:00:002
2752299110,10cyclictest0-21swapper/222:35:152
2751499110,10cyclictest0-21swapper/122:25:141
2751399119,1cyclictest9-21ksoftirqd/022:15:130
2751399119,1cyclictest9-21ksoftirqd/000:10:070
2751399110,6cyclictest16554-21apt-get00:05:150
2751399110,10cyclictest0-21swapper/022:25:150
2752299109,1cyclictest28-21ksoftirqd/220:10:012
2752299105,4cyclictest28-21ksoftirqd/221:30:002
27522991010,0cyclictest0-21swapper/223:28:262
2752299100,5cyclictest0-21swapper/221:40:022
2751399109,1cyclictest9-21ksoftirqd/023:50:140
2751399109,1cyclictest9-21ksoftirqd/020:55:010
2751399109,1cyclictest9-21ksoftirqd/020:49:590
2751399108,1cyclictest9-21ksoftirqd/023:40:150
2751399108,1cyclictest9-21ksoftirqd/021:20:000
2751399106,3cyclictest9-21ksoftirqd/022:40:110
2751399104,5cyclictest961-21ssh21:25:220
2751399102,4cyclictest7806-21perf19:34:590
27513991010,0cyclictest9-21ksoftirqd/000:20:000
2751399101,4cyclictest31676-21latency_hist21:25:000
275239998,1cyclictest35-21ksoftirqd/320:40:003
275239996,2cyclictest17169-21/usr/sbin/munin22:35:183
275239993,2cyclictest0-21swapper/322:25:203
275239990,4cyclictest0-21swapper/320:15:013
275229998,1cyclictest28-21ksoftirqd/223:05:152
275229998,1cyclictest28-21ksoftirqd/200:00:192
275229995,3cyclictest28-21ksoftirqd/220:20:012
275229990,6cyclictest254-21systemd-journal23:25:002
275229990,6cyclictest0-21swapper/200:14:252
275139998,1cyclictest9-21ksoftirqd/000:20:230
275139997,1cyclictest9-21ksoftirqd/023:15:140
275139997,1cyclictest9-21ksoftirqd/022:55:140
275139994,2cyclictest254-21systemd-journal22:25:000
275139990,8cyclictest0-21swapper/000:30:150
275139990,5cyclictest24053-21perf21:15:010
1127290,0sleep10-21swapper/122:56:191
7674280,1sleep20-21swapper/223:50:432
275239982,2cyclictest30964-21apt-get23:40:133
275239981,5cyclictest20445-21diskmemload23:33:513
275239981,4cyclictest20445-21diskmemload00:13:093
275239980,1cyclictest0-21swapper/300:15:123
275229986,1cyclictest0-21swapper/200:39:442
275229986,1cyclictest0-21swapper/200:39:432
275229982,5cyclictest28604-21tr23:35:192
275229980,5cyclictest29884-21munin-node22:20:392
275229980,5cyclictest0-21swapper/222:52:142
275229980,5cyclictest0-21swapper/222:10:022
275229980,3cyclictest20445-21diskmemload00:25:142
275149981,3cyclictest0-21swapper/119:40:221
275149980,5cyclictest0-21swapper/123:10:201
275139987,1cyclictest9-21ksoftirqd/023:30:200
275139987,1cyclictest9-21ksoftirqd/023:25:010
275139987,1cyclictest9-21ksoftirqd/022:45:150
275139983,5cyclictest2884-21perf22:14:590
275139981,6cyclictest9274-21ssh23:55:090
275139980,7cyclictest6544-21ssh21:34:470
275139980,5cyclictest0-21swapper/019:25:130
275139980,4cyclictest16901-21latency_hist22:35:010
275239976,1cyclictest7851-21ntpq22:20:183
275239976,1cyclictest10774-21ntpq23:10:193
275239975,1cyclictest35-21ksoftirqd/320:41:223
275239972,2cyclictest1432-21cstates19:20:153
275239971,4cyclictest742-21runrttasks00:24:303
275239970,7cyclictest0-21swapper/323:36:423
275239970,5cyclictest0-21swapper/321:58:043
275239970,3cyclictest20445-21diskmemload23:20:233
275239970,2cyclictest0-21swapper/300:29:483
275239970,1cyclictest0-21swapper/322:49:593
275229976,1cyclictest6526-21cat19:30:162
275229976,1cyclictest60950irq/123-eno122:30:142
275229976,1cyclictest60950irq/123-eno122:27:542
275229976,1cyclictest60950irq/123-eno121:55:182
275229976,1cyclictest60950irq/123-eno121:10:142
275229976,1cyclictest60950irq/123-eno119:35:192
275229976,1cyclictest60950irq/123-eno119:20:132
275229976,1cyclictest60950irq/123-eno100:34:222
275229976,1cyclictest60950irq/123-eno100:05:022
275229976,1cyclictest28-21ksoftirqd/223:10:152
275229976,1cyclictest28-21ksoftirqd/222:05:192
275229971,3cyclictest15278-21ssh23:16:322
275229970,5cyclictest0-21swapper/221:54:582
275229970,4cyclictest0-21swapper/222:03:202
275229970,3cyclictest0-21swapper/221:30:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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