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2026-07-19 - 01:29
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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 highest latencies:
System rack1slot1.osadl.org (updated Sun Jul 19, 2026 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231812216158,45sleep20-21swapper/219:05:332
234062202163,25sleep00-21swapper/019:08:300
234442201162,26sleep10-21swapper/119:08:581
232902199159,26sleep30-21swapper/319:07:003
145992580,0sleep30-21swapper/300:31:413
23612991411,2cyclictest665-21ntp_states22:10:182
156542140,0sleep015656-21fschecks_time21:05:140
23616991312,1cyclictest35-21ksoftirqd/319:40:003
23612991310,2cyclictest16712-21df_inode00:35:142
175762130,8sleep09-21ksoftirqd/021:50:200
23616991210,1cyclictest35-21ksoftirqd/322:15:003
23616991210,1cyclictest35-21ksoftirqd/319:45:003
2361299129,2cyclictest29083-21apt-get21:25:122
2361299125,6cyclictest17852-21grep21:50:212
23612991210,1cyclictest8308-21apt-get21:40:092
23612991210,1cyclictest28-21ksoftirqd/220:25:002
23604991212,0cyclictest0-21swapper/121:53:261
2359699120,12cyclictest0-21swapper/023:30:120
2361699119,1cyclictest35-21ksoftirqd/323:45:143
2361699119,1cyclictest35-21ksoftirqd/323:05:133
2361699119,1cyclictest35-21ksoftirqd/321:20:003
2361699119,1cyclictest35-21ksoftirqd/320:15:013
23616991110,1cyclictest35-21ksoftirqd/323:00:233
23616991110,1cyclictest35-21ksoftirqd/322:30:213
23616991110,1cyclictest35-21ksoftirqd/321:50:003
23616991110,1cyclictest35-21ksoftirqd/321:15:003
2361299119,2cyclictest5916-21cstates20:45:132
2361299119,2cyclictest0-21swapper/222:15:142
2361299119,1cyclictest0-21swapper/223:25:112
2361299119,1cyclictest0-21swapper/223:20:162
2361299119,1cyclictest0-21swapper/219:20:182
2361299118,2cyclictest25130-21memory22:00:162
2361299118,2cyclictest1533-21irqstats00:15:152
2361299117,3cyclictest0-21swapper/200:30:172
2361299116,4cyclictest7211-21runrttasks23:40:242
2361299112,6cyclictest17123-21diskmemload23:10:102
23612991110,1cyclictest14027-21ssh21:45:252
23612991110,1cyclictest0-21swapper/222:53:572
23612991110,1cyclictest0-21swapper/200:30:012
2361299111,0cyclictest28-21ksoftirqd/220:25:262
2361299110,10cyclictest4545-21sendmail_mailst20:40:192
2361299110,1cyclictest11366-21/usr/sbin/munin22:25:152
245332100,0sleep10-21swapper/123:21:421
2361699109,1cyclictest35-21ksoftirqd/322:40:003
2361699109,1cyclictest35-21ksoftirqd/321:40:013
2361699109,1cyclictest35-21ksoftirqd/319:50:013
2361699108,1cyclictest35-21ksoftirqd/323:19:593
2361699108,1cyclictest35-21ksoftirqd/323:10:123
2361699108,1cyclictest35-21ksoftirqd/320:30:013
23616991010,0cyclictest35-21ksoftirqd/321:45:003
23616991010,0cyclictest35-21ksoftirqd/321:30:173
2361299109,1cyclictest28-21ksoftirqd/200:06:202
2361299109,1cyclictest17123-21diskmemload22:30:112
2361299109,1cyclictest0-21swapper/223:45:172
2361299109,1cyclictest0-21swapper/221:39:102
2361299109,1cyclictest0-21swapper/200:13:222
2361299108,1cyclictest23707-21aten_r1power_po20:15:122
2361299108,1cyclictest0-21swapper/223:53:152
2361299107,2cyclictest21601-21df_inode21:15:172
2361299103,6cyclictest18520-21awk21:10:182
2361299103,6cyclictest0-21swapper/222:58:202
2361299101,8cyclictest28-21ksoftirqd/219:41:472
2361299101,0cyclictest28-21ksoftirqd/219:35:182
2361299100,0cyclictest0-21swapper/223:05:172
2359699109,1cyclictest9-21ksoftirqd/022:20:000
2359699108,1cyclictest9-21ksoftirqd/019:55:000
2359699108,1cyclictest17123-21diskmemload21:25:540
2359699103,3cyclictest25881-21latency_hist23:24:590
236169999,0cyclictest35-21ksoftirqd/322:55:003
236169999,0cyclictest35-21ksoftirqd/322:05:123
236169999,0cyclictest35-21ksoftirqd/320:20:003
236169998,1cyclictest35-21ksoftirqd/323:30:143
236169998,1cyclictest35-21ksoftirqd/323:30:013
236169998,1cyclictest35-21ksoftirqd/323:20:153
236169998,1cyclictest35-21ksoftirqd/322:30:003
236169998,1cyclictest35-21ksoftirqd/322:15:013
236169994,2cyclictest240-21systemd-journal00:18:173
236169991,5cyclictest16197-21apt-get00:35:113
236129998,1cyclictest0-21swapper/223:35:322
236129998,1cyclictest0-21swapper/222:35:042
236129997,1cyclictest0-21swapper/222:40:192
236129995,4cyclictest0-21swapper/222:05:282
236129994,3cyclictest17123-21diskmemload23:15:012
236129991,8cyclictest28-21ksoftirqd/223:55:532
236129991,8cyclictest28-21ksoftirqd/223:30:112
236129991,8cyclictest28-21ksoftirqd/222:21:112
236129991,8cyclictest28-21ksoftirqd/221:30:252
236129991,8cyclictest28-21ksoftirqd/221:20:082
236129991,8cyclictest28-21ksoftirqd/221:05:012
236129991,8cyclictest28-21ksoftirqd/221:00:372
236129991,8cyclictest28-21ksoftirqd/220:55:012
236129991,8cyclictest28-21ksoftirqd/220:50:362
236129991,8cyclictest28-21ksoftirqd/220:10:372
236129991,8cyclictest28-21ksoftirqd/219:55:402
236129991,8cyclictest28-21ksoftirqd/219:50:112
236129991,8cyclictest28-21ksoftirqd/219:30:082
236129991,8cyclictest28-21ksoftirqd/219:25:332
236129991,8cyclictest28-21ksoftirqd/219:15:042
236129991,8cyclictest271rcuc/200:00:062
236129991,0cyclictest28-21ksoftirqd/223:01:292
236129991,0cyclictest28-21ksoftirqd/222:45:052
236129991,0cyclictest28-21ksoftirqd/221:55:052
236129991,0cyclictest28-21ksoftirqd/220:35:122
236129991,0cyclictest28-21ksoftirqd/220:30:012
236129991,0cyclictest28-21ksoftirqd/220:05:072
236129991,0cyclictest28-21ksoftirqd/220:00:022
236129991,0cyclictest28-21ksoftirqd/219:45:082
236129991,0cyclictest28-21ksoftirqd/219:10:062
236129991,0cyclictest28-21ksoftirqd/200:20:372
236049990,2cyclictest0-21swapper/123:05:121
235969998,1cyclictest9-21ksoftirqd/022:23:480
235969994,2cyclictest240-21systemd-journal19:50:000
235969993,3cyclictest6425-21apt-get19:40:000
236169988,0cyclictest35-21ksoftirqd/320:50:163
236169987,1cyclictest35-21ksoftirqd/322:55:213
236169987,1cyclictest35-21ksoftirqd/322:40:123
236169987,1cyclictest35-21ksoftirqd/319:25:003
236169987,1cyclictest35-21ksoftirqd/319:15:013
236169987,1cyclictest35-21ksoftirqd/300:10:133
236169987,0cyclictest35-21ksoftirqd/300:05:223
236169986,1cyclictest35-21ksoftirqd/320:45:003
236169986,1cyclictest28368-21ntpq22:45:203
236169981,2cyclictest240-21systemd-journal21:50:283
236049985,0cyclictest0-21swapper/121:00:191
236049980,5cyclictest0-21swapper/122:21:051
236049980,4cyclictest0-21swapper/121:22:081
235969987,1cyclictest9-21ksoftirqd/021:40:000
235969986,1cyclictest9-21ksoftirqd/020:15:000
235969984,0cyclictest0-21swapper/000:30:110
235969983,2cyclictest507-21apt-get21:30:110
235969982,5cyclictest14799-21cat21:05:010
235969981,6cyclictest17611-21ssh23:55:150
235969980,7cyclictest7941-21ssh00:24:340
8037270,0sleep10-21swapper/121:40:001
236169977,0cyclictest35-21ksoftirqd/320:35:143
236169976,1cyclictest35-21ksoftirqd/323:55:133
236169976,1cyclictest35-21ksoftirqd/323:40:153
236169976,1cyclictest35-21ksoftirqd/321:25:143
236169976,1cyclictest35-21ksoftirqd/320:30:123
236169976,1cyclictest35-21ksoftirqd/320:20:143
236169976,1cyclictest35-21ksoftirqd/319:50:133
236169976,0cyclictest35-21ksoftirqd/319:25:163
236169975,1cyclictest8381-21ssh00:25:083
236169975,1cyclictest35-21ksoftirqd/320:00:003
236169974,3cyclictest9163-21kworker/3:121:05:143
236169974,1cyclictest240-21systemd-journal23:51:023
236169974,1cyclictest240-21systemd-journal22:22:143
236169974,1cyclictest240-21systemd-journal22:00:283
236169973,2cyclictest240-21systemd-journal23:35:453
236169973,2cyclictest240-21systemd-journal21:20:133
236169971,2cyclictest0-21swapper/300:03:393
236169970,6cyclictest22028-21ssh21:55:293
236049970,5cyclictest9133-21chrt23:45:011
236049970,4cyclictest0-21swapper/122:47:051
236049970,2cyclictest0-21swapper/119:35:201
236049970,1cyclictest0-21swapper/123:13:361
235969976,1cyclictest30433-1kworker/u9:022:26:410
235969976,1cyclictest18283-21ssh00:36:060
235969976,1cyclictest1619-1kworker/u9:123:40:190
235969976,1cyclictest16176-21cat22:30:150
235969975,1cyclictest27410-21ssh21:22:020
235969975,1cyclictest26063-21ssh00:05:180
235969973,3cyclictest27433-21/usr/sbin/munin23:25:180
235969973,3cyclictest23043-21apt-get22:40:110
235969973,1cyclictest17900-21diskstats21:10:140
235969973,1cyclictest17123-21diskmemload00:17:260
235969971,5cyclictest9283-21/usr/sbin/munin23:45:160
235969971,3cyclictest17849-21kworker/u8:200:00:010
235969970,6cyclictest3204-21/usr/sbin/munin20:40:120
235969970,6cyclictest31368-21ssh22:09:240
235969970,6cyclictest27951-21ssh22:45:160
235969970,6cyclictest23967-21telnet19:10:120
235969970,6cyclictest13978-21gltestperf23:50:160
235969970,6cyclictest0-21swapper/023:10:110
235969970,6cyclictest0-21swapper/019:28:290
235969970,6cyclictest0-21swapper/000:25:150
235969970,1cyclictest27026-21ssh22:03:170
235969970,1cyclictest24073-21ssh21:18:300
235969970,1cyclictest19927-21date21:55:000
235969970,1cyclictest17123-21diskmemload23:03:260
235969970,1cyclictest17123-21diskmemload22:55:500
235969970,1cyclictest0-21swapper/023:15:190
235969970,1cyclictest0-21swapper/023:05:150
235969970,1cyclictest0-21swapper/022:52:020
235969970,1cyclictest0-21swapper/020:25:110
235969970,1cyclictest0-21swapper/000:10:180
20064270,1sleep10-21swapper/123:58:321
236169965,1cyclictest35-21ksoftirqd/320:05:133
236169963,1cyclictest548-21systemd-logind20:04:083
236169963,1cyclictest548-21systemd-logind19:12:083
236169963,1cyclictest240-21systemd-journal21:00:123
236169963,1cyclictest240-21systemd-journal20:55:123
236169963,1cyclictest240-21systemd-journal20:45:113
236169963,1cyclictest240-21systemd-journal00:20:003
236169962,2cyclictest294-21systemd-udevd19:31:093
236049964,1cyclictest0-21swapper/121:25:131
236049962,1cyclictest227832sleep121:57:261
236049961,2cyclictest0-21swapper/100:30:111
236049960,6cyclictest0-21swapper/122:50:161
236049960,6cyclictest0-21swapper/121:30:161
236049960,5cyclictest0-21swapper/120:05:151
236049960,4cyclictest0-21swapper/123:25:171
236049960,4cyclictest0-21swapper/122:18:001
236049960,4cyclictest0-21swapper/122:14:211
236049960,4cyclictest0-21swapper/100:29:431
236049960,4cyclictest0-21swapper/100:11:491
236049960,3cyclictest0-21swapper/123:37:171
236049960,3cyclictest0-21swapper/122:05:171
236049960,3cyclictest0-21swapper/121:05:111
236049960,1cyclictest0-21swapper/123:45:201
235969966,0cyclictest14190-21ssh21:45:520
235969965,1cyclictest9-21ksoftirqd/020:34:280
235969965,1cyclictest13842-1kworker/u9:023:35:200
235969964,1cyclictest9-21ksoftirqd/019:15:010
235969964,1cyclictest2229-21diskstats19:30:130
235969963,0cyclictest0-21swapper/019:20:110
235969962,1cyclictest19247-21sh22:35:120
235969960,6cyclictest0-21swapper/019:42:400
235969960,5cyclictest5557-21dpkg20:45:100
235969960,5cyclictest31895-21ssh22:10:120
235969960,5cyclictest0-21swapper/019:55:120
235969960,0cyclictest17123-21diskmemload21:40:000
235969960,0cyclictest0-21swapper/020:53:450
235969960,0cyclictest0-21swapper/020:37:210
235969960,0cyclictest0-21swapper/020:18:320
236049953,1cyclictest0-21swapper/119:55:111
236049952,2cyclictest0-21swapper/121:41:271
236049952,2cyclictest0-21swapper/121:10:201
236049952,1cyclictest0-21swapper/123:15:171
236049951,3cyclictest0-21swapper/123:50:131
236049951,1cyclictest0-21swapper/120:20:171
236049950,5cyclictest0-21swapper/100:20:381
236049950,4cyclictest0-21swapper/122:02:001
236049950,4cyclictest0-21swapper/119:40:001
236049950,3cyclictest0-21swapper/123:35:001
236049950,3cyclictest0-21swapper/123:01:101
236049950,3cyclictest0-21swapper/122:25:351
236049950,3cyclictest0-21swapper/120:55:121
236049950,3cyclictest0-21swapper/100:15:111
236049950,3cyclictest0-21swapper/100:05:121
236049950,2cyclictest0-21swapper/122:43:481
236049950,2cyclictest0-21swapper/121:15:291
236049950,2cyclictest0-21swapper/100:38:221
236049950,1cyclictest0-21swapper/122:35:151
236049950,1cyclictest0-21swapper/122:32:171
236049950,1cyclictest0-21swapper/120:45:101
236049950,1cyclictest0-21swapper/100:00:151
235969953,1cyclictest16334-21/usr/sbin/munin20:00:120
235969951,2cyclictest11407-21ntpq20:55:170
235969950,4cyclictest25986-21/usr/sbin/munin20:20:190
19578250,1sleep018685-21/usr/sbin/munin20:05:150
236049944,0cyclictest0-21swapper/120:32:001
236049943,1cyclictest18181-21chrt20:01:411
236049941,1cyclictest0-21swapper/120:35:121
236049940,3cyclictest0-21swapper/122:56:211
236049940,3cyclictest0-21swapper/120:10:221
236049940,2cyclictest0-21swapper/121:45:211
236049940,2cyclictest0-21swapper/120:40:141
236049940,2cyclictest0-21swapper/119:20:121
236049940,1cyclictest0-21swapper/120:50:151
236049940,1cyclictest0-21swapper/120:15:011
236049940,1cyclictest0-21swapper/119:30:141
236049940,0cyclictest0-21swapper/120:25:141
236049940,0cyclictest0-21swapper/119:11:121
236049931,1cyclictest0-21swapper/119:50:111
236049931,1cyclictest0-21swapper/119:25:151
236049931,1cyclictest0-21swapper/119:15:121
236049930,1cyclictest0-21swapper/119:45:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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