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2026-01-03 - 07:56
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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 rackeslot2.osadl.org (updated Sat Jan 03, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13259812660,0sleep01325979-21ssh21:22:400
15903322270,2sleep11590193-21ssh23:48:181
1158066992522,1cyclictest0-21swapper/222:00:012
1158064992417,6cyclictest1382017-21kthreadcore21:53:160
1158066992311,6cyclictest0-21swapper/223:08:152
1158064992320,2cyclictest1682237-21grep00:40:010
1158065992219,2cyclictest1485572-21latency_hist22:50:031
1158065992118,2cyclictest1359935-21latency_hist21:40:021
1158064992110,6cyclictest0-21swapper/000:20:000
1158065992017,2cyclictest1290-21dbus-daemon19:50:011
1158065992015,3cyclictest1582628-21unixbench_singl23:43:221
115806499206,4cyclictest0-21swapper/022:50:010
115806499204,7cyclictest1164272-21kworker/u16:3+rpciod22:28:210
1158064992017,2cyclictest1293928-21wc21:00:000
1158064992014,5cyclictest1605853-21kthreadcore23:58:150
2649091190,2phc2sys0-21swapper/321:15:273
1158066991916,1cyclictest0-21swapper/222:25:012
1158066991916,1cyclictest0-21swapper/200:33:222
1158065991916,2cyclictest1653958-21timerandwakeup00:23:231
1158065991916,2cyclictest1653958-21timerandwakeup00:23:231
1158065991916,2cyclictest1290-21dbus-daemon21:55:021
115806499199,5cyclictest0-21swapper/022:08:100
115806499199,5cyclictest0-21swapper/021:28:120
1158064991916,2cyclictest1226819-21apt-key20:05:000
2649091180,2phc2sys0-21swapper/321:12:193
1158065991815,2cyclictest1557024-21latency_hist23:30:011
1158065991815,2cyclictest1538955-21cron23:20:001
1158065991815,2cyclictest1377718-21grep21:50:011
1158065991815,2cyclictest1342127-21sh21:30:011
1158065991815,2cyclictest0-21swapper/122:25:011
1158065991814,3cyclictest1250823-21mailstats20:23:211
1158064991811,6cyclictest0-21swapper/021:35:020
115806499180,14cyclictest0-21swapper/021:37:110
2649091170,3phc2sys0-21swapper/321:31:303
2649091170,2phc2sys0-21swapper/323:30:463
2649091170,2phc2sys0-21swapper/322:46:383
2649091170,2phc2sys0-21swapper/322:37:363
2649091170,2phc2sys0-21swapper/322:25:493
2649091170,1phc2sys0-21swapper/322:32:433
1158066991715,1cyclictest0-21swapper/223:20:012
1158066991714,1cyclictest0-21swapper/220:40:012
1158066991714,1cyclictest0-21swapper/220:20:002
1158066991714,1cyclictest0-21swapper/220:05:002
115806599179,1cyclictest191rcu_preempt22:43:221
115806599178,3cyclictest501rcuop/222:08:081
115806599178,1cyclictest134050irq/121-eno123:03:291
115806599177,3cyclictest501rcuop/221:14:461
1158065991714,2cyclictest1559288-21aten_repower_en23:33:101
1158065991714,2cyclictest1329190-21kthreadcore21:23:171
1158065991714,2cyclictest1158062-21cyclictest20:33:151
1158065991711,4cyclictest1624944-21kthreadcore00:08:161
1158065991711,2cyclictest134050irq/121-eno122:30:011
1158065991711,1cyclictest601rcuop/323:56:461
1158065991710,1cyclictest601rcuop/322:14:541
115806499178,8cyclictest0-21swapper/000:28:080
115806499178,6cyclictest134050irq/121-eno123:13:130
115806499178,2cyclictest0-21swapper/021:13:090
115806499177,5cyclictest0-21swapper/023:25:010
115806499177,5cyclictest0-21swapper/000:03:120
1158064991714,2cyclictest1595371-21cstates23:53:110
1158064991714,2cyclictest1476472-21gmain22:45:010
1158064991714,2cyclictest1191736-21gltestperf19:38:140
1158064991714,2cyclictest1164272-21kworker/u16:3-rpciod22:38:100
1158064991710,6cyclictest0-21swapper/023:00:010
115806499170,5cyclictest1178379-21ls19:25:000
115806499170,5cyclictest1178379-21ls19:25:000
2649091160,2phc2sys0-21swapper/322:18:163
2649091160,2phc2sys0-21swapper/319:29:403
15061112160,2sleep30-21swapper/323:03:113
115806699163,8cyclictest0-21swapper/223:40:012
1158066991614,1cyclictest0-21swapper/222:50:022
1158066991614,1cyclictest0-21swapper/222:15:012
1158066991613,1cyclictest0-21swapper/223:58:122
1158066991613,1cyclictest0-21swapper/223:05:002
1158066991613,1cyclictest0-21swapper/222:28:142
1158066991613,1cyclictest0-21swapper/221:46:412
1158066991613,1cyclictest0-21swapper/220:29:452
1158066991612,2cyclictest0-21swapper/223:28:222
115806599169,2cyclictest1214601-21turbostat.cron19:59:561
115806599169,1cyclictest1145703-21kworker/1:2+events_freezable19:45:011
115806599168,3cyclictest501rcuop/222:15:541
115806599168,3cyclictest501rcuop/221:34:461
115806599168,3cyclictest501rcuop/221:16:341
115806599168,2cyclictest134050irq/121-eno100:25:171
115806599167,3cyclictest501rcuop/220:57:591
115806599164,7cyclictest1377379-21kworker/u16:0+xprtiod22:00:311
1158065991614,1cyclictest0-21swapper/100:20:011
1158065991613,2cyclictest501rcuop/223:36:541
1158065991613,2cyclictest1669466-21kthreadcore00:33:221
1158065991613,2cyclictest1619736-21/usr/sbin/munin00:05:021
1158065991613,2cyclictest1326-21systemd-logind19:30:011
1158065991613,2cyclictest1277758-21kthreadcore20:48:161
1158065991613,2cyclictest1271653-21kthreadcore20:43:141
1158065991613,2cyclictest1166069-21kthreadcore19:15:031
1158065991612,3cyclictest1592649-21kworker/u16:2+nfsiod23:50:031
1158065991612,3cyclictest1530225-21kworker/u16:1+nfsiod23:24:011
1158065991612,3cyclictest1236325-21kthreadcore20:13:181
1158065991610,3cyclictest1455641-21kthreadcore22:33:171
115806499169,3cyclictest1371537-21forks21:48:130
115806499167,5cyclictest1251409-21kworker/u16:2+nfsiod21:55:140
115806499167,4cyclictest0-21swapper/022:20:000
115806499166,5cyclictest0-21swapper/023:33:160
115806499166,5cyclictest0-21swapper/021:20:010
1158064991613,2cyclictest1290-21dbus-daemon19:20:010
1158064991613,2cyclictest1246199-21cpuspeed_turbos20:23:120
1158064991613,2cyclictest1239541-21systemd-run20:15:020
1158064991613,2cyclictest1179684-21gltestperf19:28:120
1158064991612,3cyclictest1452858-21kthreadcore22:33:150
1158064991612,3cyclictest0-21swapper/020:40:010
1158064991611,1cyclictest1305988-21diskmemload23:47:110
2649091151,2phc2sys0-21swapper/322:04:013
2649091150,2phc2sys0-21swapper/322:40:173
2649091150,2phc2sys0-21swapper/322:22:283
2649091150,2phc2sys0-21swapper/321:57:543
2649091150,2phc2sys0-21swapper/300:16:173
1158066991512,1cyclictest0-21swapper/223:45:012
1158066991512,1cyclictest0-21swapper/222:40:002
1158066991512,1cyclictest0-21swapper/221:53:132
1158066991512,1cyclictest0-21swapper/221:18:112
1158066991512,1cyclictest0-21swapper/221:14:452
1158066991512,1cyclictest0-21swapper/221:08:152
1158066991512,1cyclictest0-21swapper/219:48:052
1158066991512,1cyclictest0-21swapper/219:28:142
1158066991512,1cyclictest0-21swapper/200:22:122
1158066991512,1cyclictest0-21swapper/200:22:122
1158066991511,2cyclictest0-21swapper/222:10:022
115806599158,1cyclictest601rcuop/320:18:151
115806599157,3cyclictest501rcuop/223:06:201
115806599157,3cyclictest501rcuop/222:50:411
115806599157,3cyclictest501rcuop/222:36:021
115806599157,3cyclictest501rcuop/219:33:191
115806599157,3cyclictest36-21ksoftirqd/121:10:021
115806599156,3cyclictest501rcuop/221:02:521
115806599156,3cyclictest1109-21hwrng00:13:161
1158065991512,2cyclictest1682082-21latency_hist00:40:011
1158065991512,2cyclictest1266787-21kthreadcore20:38:191
1158065991512,2cyclictest1233100-21gpgconf20:10:001
1158065991511,3cyclictest1224690-21kthreadcore20:03:181
1158065991510,1cyclictest191rcu_preempt21:55:391
115806499158,6cyclictest0-21swapper/022:55:020
115806499158,2cyclictest0-21swapper/019:33:100
115806499156,4cyclictest0-21swapper/023:40:010
115806499156,2cyclictest0-21swapper/023:43:110
115806499155,5cyclictest0-21swapper/023:03:110
115806499155,5cyclictest0-21swapper/020:08:150
115806499155,1cyclictest2902298rtkit-daemon23:17:280
115806499153,7cyclictest1294792-21grep21:03:140
1158064991512,2cyclictest1517945-21kthreadcore23:08:170
1158064991512,2cyclictest1397881-21aten_repower_fr22:03:090
1158064991512,2cyclictest1290-21dbus-daemon00:35:010
1158064991512,2cyclictest1288-1atopacctd19:58:390
1158064991512,2cyclictest1254688-21kthreadcore20:28:180
1158064991512,2cyclictest1244162-21kthreadcore20:18:200
1158064991512,2cyclictest1158062-21cyclictest23:26:540
1158064991511,3cyclictest1651554-21kthreadcore00:23:180
1158064991511,3cyclictest1651554-21kthreadcore00:23:180
1158064991511,3cyclictest1592649-21kworker/u16:2+nfsiod00:13:150
1158064991510,4cyclictest1394914-21kworker/u16:1-nfsiod22:21:370
2649091144,2phc2sys0-21swapper/320:00:023
2649091140,5phc2sys0-21swapper/323:51:383
2649091140,1phc2sys0-21swapper/319:53:193
1158066991412,1cyclictest0-21swapper/221:45:012
1158066991411,1cyclictest0-21swapper/221:38:402
1158066991411,1cyclictest0-21swapper/221:23:132
1158066991411,1cyclictest0-21swapper/221:03:162
1158066991411,1cyclictest0-21swapper/220:43:192
1158066991411,1cyclictest0-21swapper/220:15:012
1158066991411,1cyclictest0-21swapper/220:10:002
1158066991411,1cyclictest0-21swapper/219:43:172
1158066991411,1cyclictest0-21swapper/219:38:182
1158066991411,1cyclictest0-21swapper/200:38:182
1158066991411,1cyclictest0-21swapper/200:28:202
115806699140,8cyclictest0-21swapper/221:26:572
115806599148,1cyclictest601rcuop/322:57:021
115806599148,1cyclictest501rcuop/219:10:021
115806599146,3cyclictest501rcuop/220:53:261
115806599146,3cyclictest501rcuop/220:53:261
115806599146,3cyclictest501rcuop/220:29:411
115806599146,3cyclictest501rcuop/219:35:441
115806599145,3cyclictest501rcuop/219:12:471
1158065991410,3cyclictest1251409-21kworker/u16:2+nfsiod23:13:461
1158065991410,1cyclictest191rcu_preempt21:42:111
115806599140,3cyclictest0-21swapper/119:20:301
115806599140,3cyclictest0-21swapper/119:20:301
115806499147,6cyclictest0-21swapper/000:08:120
115806499147,3cyclictest0-21swapper/019:53:120
115806499145,5cyclictest0-21swapper/020:32:430
1158064991411,2cyclictest1416458-21head22:13:100
1158064991411,2cyclictest1286303-21kthreadcore20:53:180
1158064991411,2cyclictest1286303-21kthreadcore20:53:180
1158064991411,2cyclictest1273093-21kthreadcore20:43:160
1158064991411,2cyclictest1205860-21kthreadcore19:48:190
1158064991410,3cyclictest1251409-21kworker/u16:2+nfsiod21:40:520
1158064991410,3cyclictest1198375-21kthreadcore19:43:160
2649091130,3phc2sys0-21swapper/323:36:373
2649091130,2phc2sys0-21swapper/323:56:033
2649091130,2phc2sys0-21swapper/322:57:363
2649091130,2phc2sys0-21swapper/322:50:343
2649091130,2phc2sys0-21swapper/322:13:573
2649091130,2phc2sys0-21swapper/322:08:353
2649091130,2phc2sys0-21swapper/321:22:533
2649091130,2phc2sys0-21swapper/300:39:153
16241322130,2sleep30-21swapper/300:08:163
115806699131,6cyclictest0-21swapper/223:50:012
1158066991311,1cyclictest0-21swapper/223:55:022
1158066991311,1cyclictest0-21swapper/223:25:022
1158066991311,1cyclictest0-21swapper/222:55:012
1158066991311,1cyclictest0-21swapper/222:43:172
1158066991311,1cyclictest0-21swapper/222:17:392
1158066991311,1cyclictest0-21swapper/219:15:032
1158066991311,1cyclictest0-21swapper/200:12:282
1158066991310,1cyclictest0-21swapper/223:13:142
1158066991310,1cyclictest0-21swapper/222:58:182
1158066991310,1cyclictest0-21swapper/222:31:532
1158066991310,1cyclictest0-21swapper/222:03:102
1158066991310,1cyclictest0-21swapper/221:33:162
1158066991310,1cyclictest0-21swapper/220:58:102
1158066991310,1cyclictest0-21swapper/220:53:162
1158066991310,1cyclictest0-21swapper/220:53:162
1158066991310,1cyclictest0-21swapper/220:48:162
1158066991310,1cyclictest0-21swapper/220:33:192
1158066991310,1cyclictest0-21swapper/220:23:212
1158066991310,1cyclictest0-21swapper/219:53:122
1158066991310,1cyclictest0-21swapper/200:18:102
1158066991310,1cyclictest0-21swapper/200:08:172
115806699130,7cyclictest0-21swapper/219:10:012
115806699130,7cyclictest0-21swapper/200:03:102
115806699130,1cyclictest0-21swapper/223:33:092
115806599136,3cyclictest501rcuop/219:52:511
1158064991310,2cyclictest1303280-21kthreadcore21:08:190
1158064991310,2cyclictest1279802-21kthreadcore20:48:170
1158064991310,2cyclictest1162163-21kthreadcore19:13:180
2649091122,2phc2sys0-21swapper/323:19:003
2649091120,3phc2sys0-21swapper/300:00:153
2649091120,2phc2sys0-21swapper/323:25:453
2649091120,2phc2sys0-21swapper/321:51:423
2649091120,1phc2sys0-21swapper/321:41:463
2649091120,1phc2sys0-21swapper/320:41:573
115806699129,1cyclictest0-21swapper/219:33:172
115806699129,1cyclictest0-21swapper/219:23:182
115806699129,1cyclictest0-21swapper/219:23:182
115806699129,1cyclictest0-21swapper/219:10:392
2649091112,2phc2sys0-21swapper/300:31:383
2649091111,3phc2sys0-21swapper/300:27:213
2649091111,2phc2sys0-21swapper/300:13:143
2649091110,3phc2sys0-21swapper/323:43:083
2649091110,3phc2sys0-21swapper/319:38:103
2649091110,2phc2sys0-21swapper/323:21:203
2649091110,2phc2sys0-21swapper/320:47:253
2649091110,2phc2sys0-21swapper/320:33:243
2649091110,1phc2sys0-21swapper/319:47:353
2649091110,1phc2sys0-21swapper/319:14:343
115806699119,1cyclictest0-21swapper/219:57:172
115806499119,1cyclictest0-21swapper/019:10:020
2649091101,3phc2sys0-21swapper/323:05:053
2649091101,2phc2sys0-21swapper/319:43:113
2649091100,4phc2sys0-21swapper/320:13:113
2649091100,2phc2sys0-21swapper/323:11:143
2649091100,2phc2sys0-21swapper/321:46:293
2649091100,2phc2sys0-21swapper/321:36:113
2649091100,2phc2sys0-21swapper/321:27:543
2649091100,2phc2sys0-21swapper/321:08:223
2649091100,2phc2sys0-21swapper/321:03:213
2649091100,2phc2sys0-21swapper/320:23:103
2649091100,2phc2sys0-21swapper/320:03:103
2649091100,2phc2sys0-21swapper/319:30:233
264909191,2phc2sys0-21swapper/320:05:393
264909190,3phc2sys0-21swapper/319:20:023
264909190,2phc2sys0-21swapper/323:45:093
264909190,2phc2sys0-21swapper/320:58:123
264909190,2phc2sys0-21swapper/320:53:113
264909190,2phc2sys0-21swapper/320:53:113
264909190,2phc2sys0-21swapper/320:38:173
264909190,2phc2sys0-21swapper/320:28:153
264909190,2phc2sys0-21swapper/320:18:173
264909190,2phc2sys0-21swapper/319:23:153
264909190,2phc2sys0-21swapper/319:23:153
264909190,2phc2sys0-21swapper/300:20:033
264909190,2phc2sys0-21swapper/300:20:033
264909190,1phc2sys0-21swapper/319:08:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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