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2026-06-05 - 05:14
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Fri Jun 05, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1763323470,7sleep017634-21fschecks_count19:05:140
188762229160,30sleep10-21swapper/119:05:441
189812218152,22sleep20-21swapper/219:07:062
189082203163,26sleep30-21swapper/319:06:103
296052590,0sleep30-21swapper/322:58:283
316442220,0sleep10-21swapper/121:34:431
19316991818,0cyclictest28-21ksoftirqd/223:55:142
19316991612,1cyclictest28-21ksoftirqd/221:12:232
19301991413,0cyclictest0-21swapper/022:45:120
19316991211,1cyclictest28-21ksoftirqd/222:56:522
19316991211,1cyclictest28-21ksoftirqd/222:05:002
19316991210,1cyclictest28-21ksoftirqd/200:00:122
1930199122,5cyclictest6849-21sed21:45:000
1931699119,1cyclictest28-21ksoftirqd/223:32:262
1931699119,1cyclictest28-21ksoftirqd/219:55:002
19316991110,1cyclictest28-21ksoftirqd/223:12:462
19308991111,0cyclictest0-21swapper/100:20:111
1930199111,5cyclictest30461-21perf20:40:000
1932199100,6cyclictest21512-21/usr/sbin/munin00:15:183
1931699109,1cyclictest28-21ksoftirqd/221:35:172
1931699109,1cyclictest28-21ksoftirqd/221:20:182
1931699109,1cyclictest28-21ksoftirqd/220:25:002
1931699109,1cyclictest28-21ksoftirqd/200:20:142
1931699108,1cyclictest28-21ksoftirqd/223:50:212
1931699108,1cyclictest28-21ksoftirqd/221:00:002
19316991010,0cyclictest28-21ksoftirqd/221:45:372
19316991010,0cyclictest28-21ksoftirqd/221:40:182
19316991010,0cyclictest28-21ksoftirqd/221:20:002
193169999,0cyclictest28-21ksoftirqd/223:36:202
193169998,1cyclictest28-21ksoftirqd/223:23:402
193169998,1cyclictest28-21ksoftirqd/222:25:142
193169998,1cyclictest28-21ksoftirqd/221:30:392
193169998,1cyclictest28-21ksoftirqd/220:10:092
193169998,1cyclictest28-21ksoftirqd/200:32:252
193169998,1cyclictest28-21ksoftirqd/200:13:022
193169997,1cyclictest28-21ksoftirqd/223:07:082
193169997,1cyclictest28-21ksoftirqd/221:58:132
193019998,1cyclictest9-21ksoftirqd/021:55:140
193019991,4cyclictest7473-21perf21:00:000
193219986,1cyclictest1029-21snmpd23:03:273
193219986,1cyclictest1029-21snmpd22:16:413
193219986,1cyclictest1029-21snmpd21:53:593
193219986,1cyclictest1029-21snmpd20:46:273
193219986,1cyclictest1029-21snmpd20:30:273
193219986,1cyclictest1029-21snmpd20:19:083
193219981,5cyclictest12346-21diskmemload21:20:223
193169988,0cyclictest28-21ksoftirqd/223:27:382
193169988,0cyclictest28-21ksoftirqd/222:39:002
193169988,0cyclictest28-21ksoftirqd/222:15:232
193169988,0cyclictest28-21ksoftirqd/221:29:442
193169988,0cyclictest28-21ksoftirqd/200:27:482
193169988,0cyclictest10528-21apt-get21:50:012
193169987,1cyclictest28-21ksoftirqd/223:42:112
193169987,1cyclictest28-21ksoftirqd/223:15:172
193169987,1cyclictest28-21ksoftirqd/223:01:402
193169987,1cyclictest28-21ksoftirqd/222:48:402
193169987,1cyclictest28-21ksoftirqd/222:30:112
193169987,1cyclictest28-21ksoftirqd/222:20:182
193169987,1cyclictest28-21ksoftirqd/222:05:152
193169987,1cyclictest28-21ksoftirqd/221:05:002
193169987,1cyclictest28-21ksoftirqd/221:05:002
193169987,1cyclictest28-21ksoftirqd/220:50:002
193169987,1cyclictest28-21ksoftirqd/219:15:132
193169987,1cyclictest28-21ksoftirqd/200:35:122
193169987,1cyclictest28-21ksoftirqd/200:05:332
193169986,1cyclictest61650irq/122-eno119:55:112
193169986,1cyclictest28-21ksoftirqd/222:40:122
193169986,1cyclictest28-21ksoftirqd/219:40:002
193169986,1cyclictest28-21ksoftirqd/200:15:142
193169980,8cyclictest0-21swapper/222:10:352
193169980,8cyclictest0-21swapper/219:30:182
193169980,0cyclictest0-21swapper/222:51:042
193089980,4cyclictest0-21swapper/100:10:101
193019986,1cyclictest9-21ksoftirqd/020:45:100
193019986,1cyclictest1747-21ntpd21:20:590
193019986,1cyclictest1747-21ntpd19:10:590
193019986,1cyclictest1029-21snmpd23:40:050
193019986,1cyclictest1029-21snmpd00:06:270
193019985,2cyclictest20735-21kworker/u8:022:35:130
193019984,2cyclictest240-21systemd-journal23:20:000
193019984,2cyclictest240-21systemd-journal23:12:080
193019984,2cyclictest240-21systemd-journal23:05:000
193019982,5cyclictest7657-21apt-get21:00:110
193019982,5cyclictest7657-21apt-get21:00:110
193019981,4cyclictest561-21nscd20:05:120
193019980,7cyclictest31745-21ssh00:28:260
193019980,2cyclictest20430-21apt-get23:30:110
10402280,1sleep30-21swapper/322:31:293
28889270,1sleep30-21swapper/300:25:123
193219976,1cyclictest4310-21cat21:40:163
193219976,1cyclictest35-21ksoftirqd/321:31:333
193219975,1cyclictest11779-21ssh23:17:153
193219975,1cyclictest1029-21snmpd23:05:463
193219975,1cyclictest1029-21snmpd22:44:303
193219975,1cyclictest1029-21snmpd22:25:423
193219975,1cyclictest1029-21snmpd22:20:383
193219975,1cyclictest1029-21snmpd20:00:263
193219975,1cyclictest1029-21snmpd20:00:263
193219975,1cyclictest1029-21snmpd00:21:483
193219974,1cyclictest13650irq/124-ahci[0020:14:553
193219973,2cyclictest12346-21diskmemload21:57:183
193219972,4cyclictest12346-21diskmemload23:37:583
193219972,3cyclictest12346-21diskmemload21:49:103
193219971,5cyclictest12346-21diskmemload22:48:103
193219971,3cyclictest2128-21apt-get19:40:113
193219970,6cyclictest0-21swapper/321:15:113
193219970,4cyclictest1029-21snmpd23:49:203
193219970,3cyclictest0-21swapper/323:58:483
193219970,3cyclictest0-21swapper/323:13:513
193219970,3cyclictest0-21swapper/322:00:123
193219970,3cyclictest0-21swapper/321:26:383
193219970,3cyclictest0-21swapper/300:11:443
193169977,0cyclictest28-21ksoftirqd/221:05:012
193169976,1cyclictest61650irq/122-eno119:45:112
193169976,1cyclictest28-21ksoftirqd/223:45:182
193169976,1cyclictest28-21ksoftirqd/219:40:212
193169976,1cyclictest21685-21kworker/2:220:30:132
193169976,1cyclictest21685-21kworker/2:220:15:122
193169975,1cyclictest28-21ksoftirqd/220:05:122
193169975,1cyclictest27633-21expr19:25:122
193169972,4cyclictest21667-21munin-node20:50:332
193169971,5cyclictest21619-21latency_hist19:15:012
193089971,6cyclictest0-21swapper/122:41:541
193089971,6cyclictest0-21swapper/119:42:081
193089971,3cyclictest0-21swapper/100:15:171
193089971,1cyclictest0-21swapper/122:21:231
193089971,1cyclictest0-21swapper/120:18:531
193089970,6cyclictest0-21swapper/120:04:591
193089970,6cyclictest0-21swapper/120:04:591
193089970,4cyclictest0-21swapper/121:00:111
193089970,4cyclictest0-21swapper/121:00:111
193089970,1cyclictest0-21swapper/100:06:391
193019976,1cyclictest31140-21ssh21:33:250
193019976,1cyclictest20026-1kworker/u9:100:19:420
193019976,1cyclictest11678-1kworker/u9:221:15:070
193019975,1cyclictest9-21ksoftirqd/020:34:510
193019975,1cyclictest32281-21ssh22:18:180
193019975,1cyclictest25436-21ntpq21:25:180
193019975,1cyclictest2012-21cat19:40:000
193019975,1cyclictest1029-21snmpd23:26:280
193019975,1cyclictest1029-21snmpd20:42:120
193019975,1cyclictest1029-21snmpd20:24:080
193019975,1cyclictest1029-21snmpd20:18:110
193019975,1cyclictest1029-21snmpd20:00:590
193019975,1cyclictest1029-21snmpd20:00:590
193019973,1cyclictest11599-21fschecks_count21:50:140
193019972,1cyclictest4484-21ssh22:25:120
193019971,6cyclictest12647-1kworker/u9:223:37:550
193019971,5cyclictest8213-21/usr/sbin/munin22:30:130
193019971,3cyclictest12346-21diskmemload22:40:060
193019971,3cyclictest10412-21apt-get00:00:110
193019970,6cyclictest765-21apt-get22:20:110
193019970,6cyclictest7045-21ssh21:45:030
193019970,6cyclictest3728-21gltestperf20:50:140
193019970,6cyclictest29278-21ssh22:57:300
193019970,6cyclictest14990-21ssh21:11:590
193019970,6cyclictest13047-21ssh23:20:100
193019970,6cyclictest0-21swapper/023:50:180
193019970,6cyclictest0-21swapper/000:10:140
193019970,2cyclictest2876-21irqstats23:05:150
193019970,1cyclictest656-21df_inode00:30:110
193019970,1cyclictest20490-21ssh22:01:110
193019970,1cyclictest1711-21ssh23:47:080
193019970,1cyclictest12346-21diskmemload22:50:180
193019970,1cyclictest0-21swapper/023:55:190
193019970,1cyclictest0-21swapper/022:10:110
193019970,1cyclictest0-21swapper/021:35:140
193019970,1cyclictest0-21swapper/020:10:140
193019970,0cyclictest0-21swapper/000:35:120
12699270,1sleep10-21swapper/122:35:161
29454260,0sleep10-21swapper/122:15:081
193219965,1cyclictest6442-21ntpq20:55:153
193219965,1cyclictest6396-21ssh00:37:283
193219965,1cyclictest29218-21ntpq23:40:183
193219965,1cyclictest2400-21ssh21:38:013
193219965,1cyclictest23412-21cat19:15:143
193219965,1cyclictest23018-21ssh22:50:083
193219965,1cyclictest19621-21ssh23:28:303
193219965,1cyclictest16192-21ssh00:06:133
193219965,1cyclictest15775-21ssh23:23:013
193219965,1cyclictest14501-21ssh21:10:413
193219965,1cyclictest13834-21ssh22:35:413
193219965,1cyclictest1029-21snmpd22:11:173
193219964,1cyclictest28142-21cat19:25:153
193219964,1cyclictest19999-21df_inode19:10:133
193219964,1cyclictest12196-21users00:00:213
193219964,1cyclictest1029-21snmpd20:24:533
193219964,1cyclictest1029-21snmpd19:47:173
193219964,1cyclictest1029-21snmpd19:39:403
193219962,2cyclictest12346-21diskmemload23:30:103
193219961,4cyclictest8959-21munin-run19:55:003
193219961,3cyclictest29618-21apt-get19:30:103
193219961,2cyclictest23036-21irqstats22:05:163
193219960,4cyclictest240-21systemd-journal21:10:003
193219960,2cyclictest0-21swapper/300:31:083
193169966,0cyclictest28-21ksoftirqd/220:25:132
193169965,1cyclictest28-21ksoftirqd/220:40:132
193169963,2cyclictest11889-21cstates20:00:122
193169963,2cyclictest11889-21cstates20:00:122
193089966,0cyclictest0-21swapper/123:06:291
193089960,6cyclictest0-21swapper/123:58:091
193089960,6cyclictest0-21swapper/123:30:151
193089960,6cyclictest0-21swapper/121:12:551
193089960,6cyclictest0-21swapper/121:07:281
193089960,6cyclictest0-21swapper/120:54:511
193089960,6cyclictest0-21swapper/120:46:501
193089960,6cyclictest0-21swapper/100:36:401
193089960,5cyclictest0-21swapper/123:20:151
193089960,5cyclictest0-21swapper/121:57:411
193089960,5cyclictest0-21swapper/121:17:101
193089960,4cyclictest0-21swapper/123:17:321
193089960,2cyclictest0-21swapper/121:50:111
193089960,1cyclictest0-21swapper/123:35:151
193089960,1cyclictest0-21swapper/122:32:421
193089960,1cyclictest0-21swapper/121:22:551
193019964,1cyclictest9-21ksoftirqd/019:20:000
193019964,1cyclictest7707-21if_eno119:50:150
193019961,3cyclictest29773-21aten2.4-expect19:30:120
193019961,3cyclictest10931-21awk19:55:200
193019960,6cyclictest0-21swapper/020:25:130
193019960,5cyclictest12346-21diskmemload22:06:550
193019960,5cyclictest0-21swapper/021:05:120
193019960,2cyclictest26311-21needreboot00:20:170
193219954,1cyclictest3910-21cat23:50:163
193219954,1cyclictest1029-21snmpd21:00:333
193219954,1cyclictest1029-21snmpd21:00:333
193219953,1cyclictest31782-21awk20:40:163
193219953,1cyclictest1029-21snmpd20:07:593
193219953,1cyclictest1029-21snmpd19:58:473
193219952,2cyclictest23566-21apt-get20:25:113
193219950,3cyclictest3808-21if_err_eno120:50:153
193169955,0cyclictest21685-21kworker/2:220:35:002
193169954,1cyclictest61650irq/122-eno119:20:132
193089955,0cyclictest0-21swapper/123:53:161
193089955,0cyclictest0-21swapper/122:46:231
193089951,4cyclictest0-21swapper/122:05:111
193089951,2cyclictest0-21swapper/123:00:111
193089951,2cyclictest0-21swapper/122:25:231
193089950,5cyclictest0-21swapper/123:10:011
193089950,5cyclictest0-21swapper/122:51:511
193089950,5cyclictest0-21swapper/122:12:211
193089950,5cyclictest0-21swapper/120:40:141
193089950,5cyclictest0-21swapper/119:37:281
193089950,5cyclictest0-21swapper/119:12:371
193089950,4cyclictest0-21swapper/123:40:021
193089950,4cyclictest0-21swapper/119:20:121
193089950,3cyclictest0-21swapper/123:27:471
193089950,3cyclictest0-21swapper/100:34:301
193089950,2cyclictest0-21swapper/122:55:151
193089950,2cyclictest0-21swapper/121:42:261
193089950,2cyclictest0-21swapper/121:26:061
193089950,2cyclictest0-21swapper/119:50:111
193089950,2cyclictest0-21swapper/119:45:121
193089950,2cyclictest0-21swapper/100:00:111
193089950,0cyclictest0-21swapper/123:47:281
193089950,0cyclictest0-21swapper/120:20:111
193089950,0cyclictest0-21swapper/120:05:251
193019954,1cyclictest5559-21taskset19:45:160
193019952,2cyclictest32755-21gltestperf19:35:140
193019952,2cyclictest26395-21awk19:20:200
193019950,5cyclictest0-21swapper/019:25:030
193219942,1cyclictest28273-21apt-get20:35:113
193219940,3cyclictest24912-21/usr/sbin/munin19:20:113
193089944,0cyclictest0-21swapper/100:26:381
193089941,2cyclictest0-21swapper/120:30:111
193089940,4cyclictest0-21swapper/120:35:241
193089940,4cyclictest0-21swapper/119:34:421
193089940,4cyclictest0-21swapper/119:28:271
193089940,2cyclictest0-21swapper/122:00:131
193089940,2cyclictest0-21swapper/120:10:111
193089940,2cyclictest0-21swapper/119:55:121
193089940,2cyclictest0-21swapper/119:15:101
193089940,1cyclictest0-21swapper/121:35:131
193089940,0cyclictest0-21swapper/121:45:121
193089940,0cyclictest0-21swapper/120:25:191
193089930,1cyclictest0-21swapper/120:55:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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