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2026-03-23 - 05:51
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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 rackeslot2.osadl.org (updated Mon Mar 23, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
93767621090,1sleep00-21swapper/021:31:300
93767621090,1sleep00-21swapper/021:31:300
11153702900,2sleep30-21swapper/323:14:013
750615992819,5cyclictest907290-21latency_hist21:15:020
750615992724,2cyclictest756896-21fschecks_time19:15:010
750616992519,2cyclictest134050irq/121-eno123:00:001
750616992519,2cyclictest134050irq/121-eno121:21:241
750615992518,6cyclictest0-21swapper/023:16:300
12262792250,2sleep30-21swapper/300:16:303
750616992417,2cyclictest134050irq/121-eno123:31:321
750616992417,2cyclictest134050irq/121-eno122:16:301
750615992413,6cyclictest0-21swapper/000:40:010
750615992411,8cyclictest0-21swapper/023:05:010
750615992411,8cyclictest0-21swapper/023:05:010
750616992214,3cyclictest1206985-21kthreadcore00:06:281
750616992214,3cyclictest1178281-21cpuspeed_turbos23:51:231
750616992214,3cyclictest1109862-21kthreadcore23:11:281
750616992213,3cyclictest1137532-21kthreadcore23:26:301
750616992212,3cyclictest1129150-21kthreadcore23:21:291
750616992212,2cyclictest1064244-21latency_hist22:45:021
75061599222,7cyclictest1082793-21cstates22:56:210
75061599222,15cyclictest0-21swapper/023:41:240
750615992219,2cyclictest1037883-21latency_hist22:30:000
750615992219,2cyclictest1011855-21latency_hist22:15:000
750615992212,4cyclictest1249329-21kthreadcore00:31:290
750616992117,3cyclictest1264221-21cron00:40:001
750616992115,5cyclictest0-21swapper/120:20:001
750616992110,6cyclictest0-21swapper/122:26:281
750616992110,3cyclictest0-21swapper/100:15:021
750615992118,2cyclictest1-21systemd00:30:000
750615992114,6cyclictest1047707-21/usr/sbin/munin22:36:220
750615992112,5cyclictest1014314-21kthreadcore22:16:300
75061699209,3cyclictest0-21swapper/123:16:271
75061699209,3cyclictest0-21swapper/122:10:021
75061699209,2cyclictest0-21swapper/121:10:021
750616992017,2cyclictest925714-21/usr/sbin/munin21:26:321
750616992017,2cyclictest0-21swapper/123:40:001
750616992010,3cyclictest0-21swapper/122:51:291
75061599209,4cyclictest1152652-21fschecks_count23:36:250
75061599206,2cyclictest0-21swapper/021:41:330
750615992018,1cyclictest1194316-21cron00:00:000
750615992017,2cyclictest994250-21munin-run22:05:000
750615992017,2cyclictest1-21systemd21:25:010
750615992012,7cyclictest0-21swapper/023:35:010
750615992012,7cyclictest0-21swapper/021:56:340
750615992011,8cyclictest943369-21cstates21:36:220
750615992010,4cyclictest969334-21cpuspeed_turbos21:51:240
2649091201,3phc2sys0-21swapper/322:51:223
75061699199,3cyclictest0-21swapper/100:16:291
750616991916,2cyclictest980490-21kthreadcore21:56:301
750616991916,2cyclictest807224-21perf19:55:011
750616991916,2cyclictest1326-21systemd-logind19:20:001
750616991916,2cyclictest1049061-21kthreadcore22:36:281
750616991915,3cyclictest961014-21fschecks_count21:46:261
750616991915,3cyclictest845463-21kthreadcore20:26:301
750616991915,3cyclictest257-21systemd-journal23:10:011
750616991912,3cyclictest945845-21kthreadcore21:36:281
750616991910,2cyclictest0-21swapper/122:21:291
75061599199,5cyclictest0-21swapper/000:11:250
75061599199,4cyclictest1100147-21cstates23:06:240
75061599195,5cyclictest0-21swapper/022:10:010
75061599194,3cyclictest1329-21rs:main0
750615991916,2cyclictest898505-21grep21:10:010
750615991912,6cyclictest0-21swapper/023:46:240
750615991911,1cyclictest0-21swapper/022:51:220
2649091190,2phc2sys0-21swapper/322:48:583
750617991815,1cyclictest0-21swapper/223:16:262
750617991814,2cyclictest0-21swapper/222:41:132
75061699189,4cyclictest0-21swapper/121:41:231
75061699188,3cyclictest0-21swapper/122:05:021
75061699188,2cyclictest191rcu_preempt23:55:401
750616991815,2cyclictest1197442-21kthreadcore00:01:291
750616991815,2cyclictest1174654-21threads23:46:351
750616991815,2cyclictest1041394-21kthreadcore22:31:281
750616991814,3cyclictest970363-21irqrtprio21:51:291
750616991814,3cyclictest812796-21unixbench-2d19:56:351
750616991814,3cyclictest796830-21kthreadcore19:46:291
750616991814,3cyclictest775995-21missed_timers19:26:311
750616991814,3cyclictest753716-21kthreadcore19:11:321
750616991814,3cyclictest1249329-21kthreadcore00:31:291
75061599187,3cyclictest898355-21diskmemload22:42:390
75061599186,4cyclictest0-21swapper/022:25:010
75061599183,5cyclictest0-21swapper/023:11:340
750615991815,2cyclictest837941-21sh20:20:020
75061599180,7cyclictest0-21swapper/021:27:330
2649091180,2phc2sys0-21swapper/323:30:533
750617991715,1cyclictest0-21swapper/219:15:012
750617991715,1cyclictest0-21swapper/200:30:012
750617991714,1cyclictest0-21swapper/222:11:282
750617991714,1cyclictest0-21swapper/220:20:012
75061699179,3cyclictest0-21swapper/121:32:541
75061699179,3cyclictest0-21swapper/121:32:541
75061699171,4cyclictest898355-21diskmemload00:26:121
750616991714,2cyclictest908799-21fschecks_count21:16:241
750616991714,2cyclictest903985-21kthreadcore21:11:291
750616991714,2cyclictest859001-21kthreadcore20:36:301
750616991714,2cyclictest1230426-21aten_repower_vo00:21:231
750616991713,3cyclictest874664-21cpuspeed_turbos20:51:251
750616991713,3cyclictest865000-21kthreadcore20:41:291
750616991713,3cyclictest818288-21missed_timers20:01:311
750616991713,3cyclictest1288-1atopacctd23:01:271
750616991713,3cyclictest1288-1atopacctd23:01:271
750616991713,3cyclictest1006639-21kthreadcore22:11:301
75061599179,4cyclictest868472-21tail20:46:230
75061599175,5cyclictest257-21systemd-journal00:02:040
75061599175,4cyclictest0-21swapper/000:20:020
75061599173,7cyclictest1180943-21tr23:51:290
75061599172,5cyclictest911253-21tr21:16:290
75061599171,7cyclictest849790-21munin-run20:30:000
750615991715,1cyclictest0-21swapper/023:30:000
750615991713,3cyclictest859001-21kthreadcore20:36:300
750617991614,1cyclictest0-21swapper/219:45:022
750617991613,1cyclictest0-21swapper/223:50:002
750617991613,1cyclictest0-21swapper/223:31:302
750617991613,1cyclictest0-21swapper/222:57:172
750617991613,1cyclictest0-21swapper/222:02:302
750617991613,1cyclictest0-21swapper/221:35:002
750617991613,1cyclictest0-21swapper/221:35:002
750617991613,1cyclictest0-21swapper/219:25:002
750617991613,1cyclictest0-21swapper/200:00:012
750617991612,2cyclictest0-21swapper/223:51:292
750617991612,2cyclictest0-21swapper/223:21:292
750617991612,2cyclictest0-21swapper/222:35:012
750617991612,2cyclictest0-21swapper/221:04:562
75061799161,12cyclictest0-21swapper/220:41:222
75061699168,3cyclictest0-21swapper/122:46:221
750616991613,2cyclictest884354-21kthreadcore20:56:291
750616991613,2cyclictest872825-21kthreadcore20:46:301
750616991613,2cyclictest851896-21kthreadcore20:31:291
750616991613,2cyclictest827159-21kthreadcore20:11:281
750616991613,2cyclictest790105-21fschecks_time19:41:251
750616991613,2cyclictest778506-21irqrtprio19:31:281
750616991613,2cyclictest1286-21avahi-daemon20:21:331
750616991612,3cyclictest1162645-21kthreadcore23:41:281
75061599168,7cyclictest1041188-21kthreadcore22:31:280
75061599168,2cyclictest0-21swapper/023:22:310
75061599165,2cyclictest801512-21/usr/sbin/munin19:51:270
75061599165,10cyclictest864225-21tr20:41:280
75061599161,6cyclictest1065782-21ssh22:46:260
750615991613,2cyclictest1231629-21kthreadcore00:21:300
750615991612,3cyclictest851494-21kthreadcore20:31:290
2649091160,2phc2sys0-21swapper/321:39:003
2649091160,2phc2sys0-21swapper/320:36:273
2649091160,1phc2sys0-21swapper/322:40:163
75061799155,5cyclictest0-21swapper/223:41:222
75061799151,8cyclictest0-21swapper/219:50:012
75061799151,7cyclictest0-21swapper/220:26:242
750617991513,1cyclictest0-21swapper/221:21:312
750617991513,1cyclictest0-21swapper/221:15:012
750617991512,1cyclictest0-21swapper/223:06:352
750617991512,1cyclictest0-21swapper/223:01:302
750617991512,1cyclictest0-21swapper/223:01:302
750617991512,1cyclictest0-21swapper/222:55:012
750617991512,1cyclictest0-21swapper/221:51:262
750617991512,1cyclictest0-21swapper/221:16:282
750617991512,1cyclictest0-21swapper/220:24:552
750617991512,1cyclictest0-21swapper/219:40:012
750617991512,1cyclictest0-21swapper/200:21:152
75061699153,4cyclictest783553-21aten2.4-expect19:36:231
750616991512,2cyclictest825366-21latency_hist20:10:011
75061599157,2cyclictest0-21swapper/021:45:270
75061599152,5cyclictest789489-21aten2.4-expect19:41:220
750615991512,2cyclictest877306-21kthreadcore20:51:300
750615991512,2cyclictest821244-21kthreadcore20:06:300
750615991512,2cyclictest810354-21kthreadcore19:56:300
750615991512,2cyclictest795615-21aten_repower_fr19:46:230
750615991512,2cyclictest784725-21kthreadcore19:36:290
750615991512,2cyclictest778005-21fschecks_time19:31:250
750615991512,2cyclictest771293-21/usr/sbin/munin19:26:330
750615991512,2cyclictest757194-21irqcore19:15:020
75061599150,8cyclictest826469-21cat20:11:260
75061599150,2cyclictest241rcuc/020:21:250
2649091150,5phc2sys0-21swapper/323:36:223
2649091150,2phc2sys0-21swapper/323:58:523
75061799149,2cyclictest0-21swapper/200:36:242
75061799147,4cyclictest0-21swapper/222:21:222
75061799141,5cyclictest0-21swapper/222:50:012
75061799141,3cyclictest764883-21chrt19:20:002
750617991412,1cyclictest0-21swapper/223:26:352
750617991411,1cyclictest0-21swapper/222:40:012
750617991411,1cyclictest0-21swapper/222:16:312
750617991411,1cyclictest0-21swapper/221:56:242
750617991411,1cyclictest0-21swapper/221:41:292
750617991411,1cyclictest0-21swapper/221:26:282
750617991411,1cyclictest0-21swapper/220:55:002
750617991411,1cyclictest0-21swapper/220:36:352
750617991411,1cyclictest0-21swapper/219:51:302
750617991411,1cyclictest0-21swapper/200:31:292
750617991410,2cyclictest0-21swapper/200:11:322
75061699145,2cyclictest0-21swapper/119:21:251
750616991411,2cyclictest890722-21kthreadcore21:01:331
750616991411,2cyclictest750738-21latency_hist19:10:021
75061599148,5cyclictest767337-21tr19:21:300
750615991411,2cyclictest881997-21kthreadcore20:56:280
75061599140,2cyclictest241rcuc/020:01:280
2649091140,3phc2sys0-21swapper/322:55:243
2649091140,2phc2sys0-21swapper/322:20:453
2649091140,2phc2sys0-21swapper/322:12:513
2649091140,2phc2sys0-21swapper/321:34:283
2649091140,2phc2sys0-21swapper/321:34:283
2649091140,2phc2sys0-21swapper/300:00:553
2649091140,1phc2sys0-21swapper/321:40:453
750617991311,1cyclictest0-21swapper/223:40:002
750617991311,1cyclictest0-21swapper/221:36:242
750617991311,1cyclictest0-21swapper/221:06:302
750617991311,1cyclictest0-21swapper/219:10:012
750617991311,1cyclictest0-21swapper/200:00:032
750617991310,2cyclictest0-21swapper/220:00:002
750617991310,1cyclictest0-21swapper/222:26:262
750617991310,1cyclictest0-21swapper/222:06:222
750617991310,1cyclictest0-21swapper/221:46:312
750617991310,1cyclictest0-21swapper/220:56:272
750617991310,1cyclictest0-21swapper/220:31:282
750617991310,1cyclictest0-21swapper/220:11:272
750617991310,1cyclictest0-21swapper/220:01:302
750617991310,1cyclictest0-21swapper/200:10:002
75061599130,5cyclictest887365-21fschecks_time21:01:280
75061599130,4cyclictest750731-21/usr/sbin/munin19:10:020
2649091136,1phc2sys0-21swapper/320:10:563
2649091133,2phc2sys0-21swapper/321:55:163
2649091131,3phc2sys0-21swapper/322:06:223
2649091131,2phc2sys0-21swapper/323:49:253
2649091131,2phc2sys0-21swapper/319:36:293
2649091130,2phc2sys0-21swapper/323:50:343
2649091130,2phc2sys0-21swapper/322:29:523
10971762130,2sleep30-21swapper/323:02:363
10971762130,2sleep30-21swapper/323:02:363
75061799129,2cyclictest0-21swapper/219:31:252
75061799129,1cyclictest0-21swapper/220:06:292
750617991210,1cyclictest0-21swapper/223:11:222
750617991210,1cyclictest0-21swapper/219:30:022
2649091121,2phc2sys0-21swapper/321:11:553
2649091120,3phc2sys0-21swapper/323:40:213
2649091120,2phc2sys0-21swapper/319:35:013
2649091120,2phc2sys0-21swapper/319:26:523
2649091120,1phc2sys0-21swapper/323:28:053
2649091120,1phc2sys0-21swapper/321:53:113
2649091120,1phc2sys0-21swapper/319:18:343
2649091120,1phc2sys0-21swapper/300:05:243
9616162118,2sleep30-21swapper/321:46:293
75061799119,1cyclictest0-21swapper/220:45:392
75061799116,2cyclictest0-21swapper/200:15:282
2649091116,2phc2sys0-21swapper/319:21:373
2649091113,2phc2sys0-21swapper/323:23:083
2649091111,3phc2sys0-21swapper/321:01:333
2649091111,2phc2sys0-21swapper/320:01:223
2649091111,2phc2sys0-21swapper/319:11:333
2649091110,3phc2sys0-21swapper/319:41:223
2649091110,2phc2sys0-21swapper/323:06:293
2649091110,2phc2sys0-21swapper/322:31:593
2649091110,2phc2sys0-21swapper/322:15:483
2649091110,2phc2sys0-21swapper/320:26:263
2649091110,2phc2sys0-21swapper/300:36:193
2649091110,1phc2sys0-21swapper/323:18:563
2649091110,1phc2sys0-21swapper/320:46:503
2649091110,1phc2sys0-21swapper/300:31:423
2649091110,1phc2sys0-21swapper/300:26:293
8326012105,3sleep30-21swapper/320:16:283
2649091101,4phc2sys0-21swapper/319:06:223
2649091101,2phc2sys0-21swapper/321:15:073
2649091101,2phc2sys0-21swapper/320:06:233
2649091101,2phc2sys0-21swapper/319:46:233
2649091100,3phc2sys0-21swapper/321:21:003
2649091100,3phc2sys0-21swapper/319:55:013
2649091100,2phc2sys0-21swapper/322:35:033
2649091100,2phc2sys0-21swapper/321:25:453
2649091100,2phc2sys0-21swapper/320:41:333
2649091100,2phc2sys0-21swapper/319:56:453
2649091100,2phc2sys0-21swapper/300:10:053
264909191,2phc2sys0-21swapper/320:51:233
264909190,2phc2sys0-21swapper/322:00:253
264909190,2phc2sys0-21swapper/320:56:283
264909190,2phc2sys0-21swapper/320:31:313
264909190,2phc2sys0-21swapper/300:20:563
264909180,2phc2sys0-21swapper/321:05:253
264909180,2phc2sys0-21swapper/320:20:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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