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2026-09-21 - 02:21
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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 all highest latencies:
System rack1slot1.osadl.org (updated Mon Sep 21, 2026 00:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14462217153,26sleep10-21swapper/119:06:041
15592205153,40sleep30-21swapper/319:07:313
16452202162,27sleep20-21swapper/219:08:392
15862197160,24sleep00-21swapper/019:07:530
112032190,1sleep311205-21gltestperf20:35:133
1878991414,0cyclictest35-21ksoftirqd/300:10:163
185999130,12cyclictest0-21swapper/100:25:091
1878991211,0cyclictest35-21ksoftirqd/300:20:263
1878991210,1cyclictest35-21ksoftirqd/323:10:233
186999120,0cyclictest26913-21diskmemload23:30:142
185999120,6cyclictest0-21swapper/121:35:181
1878991111,0cyclictest35-21ksoftirqd/323:30:153
1878991110,1cyclictest35-21ksoftirqd/323:25:213
1878991110,1cyclictest35-21ksoftirqd/323:00:173
1878991110,1cyclictest35-21ksoftirqd/322:45:013
1878991110,1cyclictest35-21ksoftirqd/300:00:143
1869991110,1cyclictest28-21ksoftirqd/223:40:152
1869991110,1cyclictest28-21ksoftirqd/221:35:002
1869991110,1cyclictest28-21ksoftirqd/220:19:592
1850991110,1cyclictest9-21ksoftirqd/019:14:590
187899109,1cyclictest35-21ksoftirqd/323:55:173
187899109,1cyclictest35-21ksoftirqd/323:40:203
187899109,1cyclictest35-21ksoftirqd/322:55:223
187899109,1cyclictest35-21ksoftirqd/322:50:163
187899109,1cyclictest35-21ksoftirqd/322:05:133
187899109,1cyclictest35-21ksoftirqd/321:30:153
187899108,1cyclictest35-21ksoftirqd/323:37:233
1878991010,0cyclictest35-21ksoftirqd/323:45:173
186999109,1cyclictest28-21ksoftirqd/219:45:002
186999109,1cyclictest28-21ksoftirqd/200:20:002
186999108,1cyclictest28-21ksoftirqd/220:24:592
186999108,1cyclictest28-21ksoftirqd/220:00:002
186999108,1cyclictest28-21ksoftirqd/219:45:142
1869991010,0cyclictest0-21swapper/223:51:082
186999100,10cyclictest0-21swapper/221:55:132
186999100,0cyclictest0-21swapper/221:11:352
185099109,1cyclictest9-21ksoftirqd/023:00:220
185099109,1cyclictest9-21ksoftirqd/022:10:150
185099109,1cyclictest9-21ksoftirqd/021:55:000
185099105,2cyclictest294-21systemd-udevd21:37:070
185099105,2cyclictest294-21systemd-udevd19:33:080
185099105,1cyclictest294-21systemd-udevd19:47:080
185099104,2cyclictest294-21systemd-udevd19:37:080
185099101,4cyclictest12498-21perf23:55:010
18789999,0cyclictest35-21ksoftirqd/322:00:133
18789999,0cyclictest35-21ksoftirqd/321:40:203
18789999,0cyclictest35-21ksoftirqd/319:25:183
18789999,0cyclictest35-21ksoftirqd/319:15:013
18789998,1cyclictest35-21ksoftirqd/322:35:133
18789998,1cyclictest35-21ksoftirqd/321:20:133
18789997,1cyclictest35-21ksoftirqd/322:25:213
18789997,1cyclictest35-21ksoftirqd/321:25:193
18789997,1cyclictest35-21ksoftirqd/320:00:143
18789997,1cyclictest35-21ksoftirqd/300:15:183
18789997,1cyclictest26911-21latency_hist21:10:013
18789990,9cyclictest4879-21kworker/3:220:15:163
18789990,8cyclictest0-21swapper/320:45:113
18699998,1cyclictest28-21ksoftirqd/223:20:142
18699998,1cyclictest28-21ksoftirqd/223:05:172
18699998,1cyclictest28-21ksoftirqd/220:00:012
18699998,1cyclictest28-21ksoftirqd/220:00:012
18699996,3cyclictest61650irq/122-eno121:37:002
18699995,3cyclictest28-21ksoftirqd/220:40:012
18699991,7cyclictest19713-21sh00:05:112
18509999,0cyclictest9-21ksoftirqd/020:10:120
18509998,1cyclictest9-21ksoftirqd/020:15:140
18509998,1cyclictest9-21ksoftirqd/019:58:240
18509998,1cyclictest9-21ksoftirqd/019:58:230
18509998,1cyclictest28470-1kworker/u9:122:00:190
18509997,1cyclictest9-21ksoftirqd/020:45:010
18509997,1cyclictest9-21ksoftirqd/000:40:000
18509995,1cyclictest548-21systemd-logind19:24:080
18509995,1cyclictest294-21systemd-udevd21:47:080
18509995,1cyclictest294-21systemd-udevd21:47:080
18509994,1cyclictest548-21systemd-logind00:19:070
18509994,1cyclictest294-21systemd-udevd20:47:070
18509994,1cyclictest294-21systemd-udevd20:29:080
18509993,5cyclictest4725-1kworker/u9:021:11:340
18789988,0cyclictest35-21ksoftirqd/323:20:133
18789988,0cyclictest35-21ksoftirqd/322:15:013
18789988,0cyclictest35-21ksoftirqd/321:50:223
18789988,0cyclictest35-21ksoftirqd/300:05:193
18789987,1cyclictest35-21ksoftirqd/322:30:203
18789987,1cyclictest35-21ksoftirqd/322:20:463
18789987,1cyclictest35-21ksoftirqd/321:35:143
18789987,1cyclictest35-21ksoftirqd/321:15:193
18789987,1cyclictest35-21ksoftirqd/321:05:003
18789987,1cyclictest35-21ksoftirqd/320:30:183
18789987,1cyclictest35-21ksoftirqd/320:25:163
18789987,1cyclictest35-21ksoftirqd/319:35:183
18789987,1cyclictest35-21ksoftirqd/319:10:243
18789987,1cyclictest35-21ksoftirqd/300:30:213
18789987,0cyclictest35-21ksoftirqd/321:45:143
18789987,0cyclictest35-21ksoftirqd/321:45:133
18789986,1cyclictest35-21ksoftirqd/319:55:013
18789986,1cyclictest35-21ksoftirqd/300:25:103
18789986,1cyclictest26119-21cat22:40:143
18789981,5cyclictest3364-21apt-get20:20:123
18789980,2cyclictest0-21swapper/319:30:143
18789980,2cyclictest0-21swapper/300:35:123
18699988,0cyclictest28-21ksoftirqd/222:55:132
18699988,0cyclictest28-21ksoftirqd/222:35:152
18699988,0cyclictest28-21ksoftirqd/222:25:012
18699987,1cyclictest28-21ksoftirqd/223:50:002
18699987,1cyclictest28-21ksoftirqd/223:15:182
18699987,1cyclictest28-21ksoftirqd/222:50:212
18699987,1cyclictest28-21ksoftirqd/222:40:142
18699987,1cyclictest28-21ksoftirqd/221:50:242
18699987,1cyclictest28-21ksoftirqd/221:45:002
18699985,1cyclictest294-21systemd-udevd23:59:082
18699983,3cyclictest548-21systemd-logind21:27:082
18699983,3cyclictest548-21systemd-logind20:07:072
18699983,3cyclictest240-21systemd-journal21:03:082
18699983,3cyclictest240-21systemd-journal20:51:082
18699983,3cyclictest240-21systemd-journal19:51:072
18699983,3cyclictest240-21systemd-journal19:33:082
18699983,3cyclictest240-21systemd-journal19:24:072
18699983,3cyclictest240-21systemd-journal00:33:072
18699983,1cyclictest548-21systemd-logind21:47:082
18699983,1cyclictest548-21systemd-logind21:47:072
18699981,1cyclictest0-21swapper/222:47:062
18599981,1cyclictest0-21swapper/122:38:481
18599980,4cyclictest0-21swapper/121:20:071
18509987,1cyclictest9-21ksoftirqd/023:55:120
18509985,1cyclictest294-21systemd-udevd21:03:070
18509985,1cyclictest294-21systemd-udevd20:51:080
18509984,1cyclictest548-21systemd-logind23:49:070
18509984,1cyclictest294-21systemd-udevd20:37:070
18509983,1cyclictest294-21systemd-udevd23:41:080
18509982,3cyclictest26913-21diskmemload00:25:040
18509981,6cyclictest0-21swapper/019:44:370
18509981,4cyclictest1981-21netstat22:05:170
18509980,7cyclictest649-21ssh21:17:340
18509980,7cyclictest561-21nscd23:07:320
18509980,2cyclictest693-21runrttasks22:15:550
21830270,1sleep0101rcuc/023:20:160
18789977,0cyclictest35-21ksoftirqd/323:53:263
18789977,0cyclictest35-21ksoftirqd/322:10:173
18789977,0cyclictest35-21ksoftirqd/320:10:163
18789977,0cyclictest35-21ksoftirqd/319:20:133
18789976,1cyclictest35-21ksoftirqd/323:15:223
18789976,1cyclictest35-21ksoftirqd/322:00:013
18789976,1cyclictest11301-21snmpd20:58:133
18789976,1cyclictest11301-21snmpd20:58:133
18789976,1cyclictest11301-21snmpd20:42:493
18789972,1cyclictest26913-21diskmemload21:10:113
18789971,5cyclictest1844-21cyclictest23:05:173
18789970,5cyclictest35-21ksoftirqd/319:55:123
18789970,5cyclictest35-21ksoftirqd/319:55:123
18699976,1cyclictest61650irq/122-eno123:25:182
18699976,1cyclictest61650irq/122-eno122:00:122
18699976,1cyclictest61650irq/122-eno120:25:152
18699976,1cyclictest61650irq/122-eno119:16:292
18699976,1cyclictest61650irq/122-eno100:00:152
18699976,1cyclictest28-21ksoftirqd/200:30:012
18699976,1cyclictest11301-21snmpd22:13:232
18699976,1cyclictest11301-21snmpd21:18:112
18699976,1cyclictest11301-21snmpd20:55:462
18699976,1cyclictest11301-21snmpd20:55:452
18699976,0cyclictest61650irq/122-eno119:25:122
18699975,1cyclictest61650irq/122-eno100:20:092
18699973,2cyclictest548-21systemd-logind23:04:072
18699972,3cyclictest548-21systemd-logind22:29:072
18699972,1cyclictest548-21systemd-logind20:47:072
18699972,1cyclictest26913-21diskmemload23:10:122
18599976,1cyclictest0-21swapper/122:26:241
18599971,6cyclictest0-21swapper/123:47:021
18599971,6cyclictest0-21swapper/123:15:411
18599971,6cyclictest0-21swapper/119:50:201
18599971,4cyclictest0-21swapper/123:25:161
18599971,3cyclictest0-21swapper/100:10:151
18599971,1cyclictest0-21swapper/120:26:141
18599971,1cyclictest0-21swapper/120:15:151
18599970,6cyclictest0-21swapper/123:58:021
18599970,6cyclictest0-21swapper/122:02:001
18599970,6cyclictest0-21swapper/119:24:011
18599970,5cyclictest0-21swapper/123:44:431
18599970,5cyclictest0-21swapper/123:06:371
18599970,5cyclictest0-21swapper/100:34:101
18599970,4cyclictest0-21swapper/120:05:131
18599970,2cyclictest0-21swapper/121:34:081
18599970,1cyclictest0-21swapper/123:04:311
18509976,1cyclictest9-21ksoftirqd/023:25:130
18509976,1cyclictest9-21ksoftirqd/023:15:200
18509976,1cyclictest9-21ksoftirqd/021:40:130
18509976,1cyclictest9-21ksoftirqd/020:33:230
18509976,1cyclictest9-21ksoftirqd/000:05:140
18509976,1cyclictest30811-21ssh00:20:120
18509976,1cyclictest11301-21snmpd21:27:190
18509975,1cyclictest9-21ksoftirqd/022:55:150
18509975,1cyclictest13295-21ssh22:21:050
18509974,1cyclictest548-21systemd-logind19:29:070
18509974,1cyclictest294-21systemd-udevd21:09:080
18509974,1cyclictest294-21systemd-udevd20:07:070
18509973,2cyclictest294-21systemd-udevd22:35:080
18509973,2cyclictest294-21systemd-udevd00:33:070
18509973,2cyclictest240-21systemd-journal20:01:580
18509971,6cyclictest31520-21kworker/0:122:30:200
18509970,6cyclictest28413-21apt-get22:45:000
18509970,6cyclictest27850-21sed21:55:230
18509970,6cyclictest24100-21ssh00:10:180
18509970,6cyclictest15888-21strings22:25:180
18509970,6cyclictest13881-21head23:10:130
18509970,6cyclictest0-21swapper/023:35:350
18509970,6cyclictest0-21swapper/020:20:180
18509970,6cyclictest0-21swapper/019:50:160
18509970,1cyclictest27749-21ssh23:30:080
18509970,1cyclictest27012-21ssh22:40:230
18509970,1cyclictest0-21swapper/022:50:120
18789966,0cyclictest35-21ksoftirqd/320:05:133
18789965,1cyclictest35-21ksoftirqd/320:50:223
18789965,1cyclictest17792-21cat19:40:153
18699966,0cyclictest61650irq/122-eno122:05:122
18699966,0cyclictest61650irq/122-eno121:20:182
18699966,0cyclictest61650irq/122-eno120:43:532
18699966,0cyclictest61650irq/122-eno120:33:442
18699966,0cyclictest61650irq/122-eno100:36:072
18699966,0cyclictest28-21ksoftirqd/222:30:142
18699966,0cyclictest28-21ksoftirqd/200:10:162
18699963,3cyclictest1844-21cyclictest23:35:022
18699962,1cyclictest31422-21expr20:10:142
18699961,3cyclictest7795-21ssh22:15:092
18699960,2cyclictest0-21swapper/221:05:172
18699960,1cyclictest0-21swapper/219:35:122
18599960,6cyclictest0-21swapper/122:33:521
18599960,6cyclictest0-21swapper/122:21:321
18599960,6cyclictest0-21swapper/119:39:491
18599960,6cyclictest0-21swapper/100:02:381
18599960,5cyclictest0-21swapper/122:45:521
18599960,5cyclictest0-21swapper/121:57:201
18599960,3cyclictest0-21swapper/121:26:491
18599960,2cyclictest0-21swapper/119:15:001
18599960,1cyclictest0-21swapper/119:40:161
18599960,1cyclictest0-21swapper/100:23:241
18599960,1cyclictest0-21swapper/100:19:091
18599960,0cyclictest0-21swapper/123:12:381
18509963,1cyclictest294-21systemd-udevd20:55:080
18509963,1cyclictest294-21systemd-udevd20:55:070
18509963,1cyclictest240-21systemd-journal19:15:010
18509960,1cyclictest9001-21telnet21:30:140
18509960,0cyclictest0-21swapper/021:22:020
18509960,0cyclictest0-21swapper/000:00:030
18789954,1cyclictest35-21ksoftirqd/319:45:143
18699953,1cyclictest61650irq/122-eno119:10:142
18599951,1cyclictest0-21swapper/100:07:281
18599950,5cyclictest0-21swapper/123:31:021
18599950,5cyclictest0-21swapper/122:42:091
18599950,5cyclictest0-21swapper/122:05:071
18599950,5cyclictest0-21swapper/121:46:351
18599950,5cyclictest0-21swapper/121:46:351
18599950,5cyclictest0-21swapper/121:15:551
18599950,5cyclictest0-21swapper/121:10:171
18599950,5cyclictest0-21swapper/120:46:471
18599950,5cyclictest0-21swapper/120:30:101
18599950,5cyclictest0-21swapper/100:39:451
18599950,4cyclictest0-21swapper/122:51:361
18599950,4cyclictest0-21swapper/122:10:541
18599950,3cyclictest0-21swapper/123:50:061
18599950,3cyclictest0-21swapper/121:50:211
18599950,3cyclictest0-21swapper/120:36:411
18599950,2cyclictest0-21swapper/123:35:301
18599950,2cyclictest0-21swapper/122:15:531
18599950,1cyclictest0-21swapper/121:40:131
18599950,0cyclictest0-21swapper/119:25:121
18599950,0cyclictest0-21swapper/119:10:151
18599944,0cyclictest0-21swapper/121:04:171
18599942,1cyclictest12170-21chrt19:30:071
18599941,2cyclictest0-21swapper/120:20:131
18599940,4cyclictest0-21swapper/122:55:221
18599940,4cyclictest0-21swapper/120:40:151
18599940,4cyclictest0-21swapper/120:14:251
18599940,3cyclictest0-21swapper/119:55:121
18599940,3cyclictest0-21swapper/119:55:111
18599940,2cyclictest0-21swapper/123:20:021
18599940,2cyclictest0-21swapper/120:55:131
18599940,2cyclictest0-21swapper/120:55:121
18599940,1cyclictest0-21swapper/121:10:001
18599940,1cyclictest0-21swapper/120:50:141
18599940,0cyclictest0-21swapper/120:00:101
18599930,1cyclictest0-21swapper/119:45:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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