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2026-04-23 - 02:24
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Wed Apr 22, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13721552980,2sleep11371958-21ssh12:10:461
13721552980,2sleep11371958-21ssh12:10:461
9725692360,2sleep1972573-21latency_hist07:30:021
10996042290,2sleep1960012-21kworker/u16:3+xprtiod09:10:451
945011992818,3cyclictest3827634-1atopacctd10:10:491
11723692280,2sleep30-21swapper/309:57:043
945011992623,2cyclictest1414275-21apt-config12:40:011
945011992623,2cyclictest1414275-21apt-config12:40:001
945011992616,3cyclictest1208982-21/usr/sbin/munin10:20:491
945011992512,3cyclictest1170659-21kthreadcore09:55:481
945011992421,2cyclictest1290-21dbus-daemon11:40:021
945011992421,2cyclictest1128363-21/usr/sbin/munin09:30:001
945010992417,6cyclictest1359627-21pmu-power12:00:500
945011992320,2cyclictest0-21swapper/107:15:011
945011992313,2cyclictest134050irq/121-eno111:25:011
945011992219,2cyclictest945009-21cyclictest08:10:011
945011992219,2cyclictest1188418-21grep10:10:011
945011992210,3cyclictest0-21swapper/112:05:391
945010992219,2cyclictest1326-21systemd-logind08:15:010
945010992214,7cyclictest966676-21aten2.4-expect07:25:410
945010992210,6cyclictest0-21swapper/009:45:010
94501099214,6cyclictest1286221-21latency_hist11:15:020
94501099213,5cyclictest1230660-21cut10:35:470
945010992118,2cyclictest1128209-21apt-key09:30:000
945010992110,5cyclictest0-21swapper/012:15:420
945012992018,1cyclictest0-21swapper/208:20:002
945012992017,1cyclictest0-21swapper/209:05:492
945012992017,1cyclictest0-21swapper/207:15:012
945012992010,5cyclictest0-21swapper/209:59:242
94501199209,3cyclictest0-21swapper/109:31:431
945011992017,2cyclictest1290-21dbus-daemon08:15:001
945011992016,2cyclictest134050irq/121-eno109:25:011
945011992011,1cyclictest134050irq/121-eno112:15:461
945011992010,3cyclictest0-21swapper/111:11:421
945011992010,3cyclictest0-21swapper/111:09:421
94501099208,8cyclictest1248409-21wc10:50:000
94501099207,5cyclictest0-21swapper/011:09:120
94501099205,10cyclictest1029158-21aten2.4-expect08:15:400
945010992017,2cyclictest1414364-21latency_hist12:40:000
945010992017,2cyclictest1414364-21latency_hist12:40:000
945010992013,2cyclictest171ktimers/012:08:410
945010992012,4cyclictest1286796-21aten2.4-expect11:15:400
945012991917,1cyclictest0-21swapper/212:05:032
945012991916,1cyclictest0-21swapper/211:47:122
945012991916,1cyclictest0-21swapper/211:00:012
94501199199,2cyclictest134050irq/121-eno110:15:461
945011991916,2cyclictest0-21swapper/111:30:001
94501099199,8cyclictest0-21swapper/012:30:010
94501099199,6cyclictest1391808-21cat12:25:000
94501099199,6cyclictest0-21swapper/010:05:470
94501099199,5cyclictest0-21swapper/011:45:500
94501099198,7cyclictest1302421-21grep11:25:420
945010991916,2cyclictest983888-21missed_timers07:35:470
945010991915,3cyclictest1250259-21kthreadcore10:50:460
945010991915,3cyclictest1221887-21kthreadcore10:30:480
945010991915,3cyclictest1214405-21kthreadcore10:25:490
945010991915,3cyclictest1082181-21kthreadcore08:55:490
945010991915,3cyclictest1075943-21kthreadcore08:50:470
945010991914,4cyclictest1196676-21cpuspeed_turbos10:15:410
945010991914,1cyclictest383433398rtkit-daemon11:50:080
945010991912,6cyclictest1191496-21kthreadcore10:10:460
945010991912,6cyclictest1167544-21irqrtprio09:55:460
945010991912,6cyclictest1153078-21kthreadcore09:45:450
945010991911,7cyclictest1236887-21kthreadcore10:40:480
945010991910,7cyclictest0-21swapper/011:05:010
94501099190,7cyclictest1320641-21tr11:35:480
2649091191,2phc2sys0-21swapper/310:57:223
945012991815,1cyclictest0-21swapper/211:10:002
945012991815,1cyclictest0-21swapper/210:55:002
945012991815,1cyclictest0-21swapper/209:45:372
945012991815,1cyclictest0-21swapper/209:00:012
945012991815,1cyclictest0-21swapper/207:40:002
94501199187,3cyclictest0-21swapper/110:55:431
945011991815,2cyclictest1106565-21fschecks_count09:15:431
945011991813,4cyclictest1213424-21kthreadcore10:25:481
94501099185,4cyclictest1041987-21aten2.4-expect08:25:410
94501099182,3cyclictest1055211-21irqcore08:35:450
945010991814,3cyclictest988190-21kthreadcore07:40:470
945010991814,3cyclictest955198-21kthreadcore07:15:460
945010991814,3cyclictest1327232-21kthreadcore11:40:480
945010991814,3cyclictest1068146-21kthreadcore08:45:460
945010991814,3cyclictest1061887-21kthreadcore08:40:470
945010991812,5cyclictest1129275-21cstates09:30:420
945010991810,2cyclictest0-21swapper/009:40:000
2649091180,2phc2sys0-21swapper/312:27:053
11147102180,2sleep30-21swapper/309:20:453
11005892180,2sleep20-21swapper/209:10:462
94501299171,8cyclictest0-21swapper/211:00:392
945012991715,1cyclictest0-21swapper/210:20:472
945012991714,1cyclictest0-21swapper/212:30:412
945012991714,1cyclictest0-21swapper/212:20:002
945012991714,1cyclictest0-21swapper/211:36:052
945012991714,1cyclictest0-21swapper/211:35:012
945012991714,1cyclictest0-21swapper/210:05:452
945012991712,2cyclictest0-21swapper/212:10:202
945012991712,2cyclictest0-21swapper/212:10:202
94501199174,4cyclictest1219633-21sshd10:30:431
945011991715,1cyclictest1085167-21dump-pmu-power09:00:001
945011991714,2cyclictest984912-21latency_hist07:40:001
945011991714,2cyclictest1269377-21grep11:00:501
945011991714,2cyclictest1248407-21cat10:50:001
945011991714,2cyclictest1066462-21cron08:45:001
94501199170,15cyclictest1331279-21latency_hist11:45:001
94501099178,5cyclictest0-21swapper/011:30:420
94501099177,6cyclictest992680-21sed07:45:460
94501099177,6cyclictest1256599-21wc10:55:410
94501099176,7cyclictest1402691-21kthreadcore12:30:470
94501099176,7cyclictest1210644-21sh10:24:080
94501099174,8cyclictest1114084-21fschecks_time09:20:420
945010991714,2cyclictest978813-21systemd-run07:35:010
945010991714,2cyclictest949059-21kthreadcore07:10:480
945010991714,2cyclictest1091755-21systemd-run09:05:010
945010991714,2cyclictest1036553-21irqcore08:20:460
945010991714,2cyclictest1009957-21latency_hist08:00:000
945010991713,3cyclictest965678-21unixbench-2d07:20:530
945010991713,3cyclictest1348392-21kthreadcore11:55:470
945010991713,3cyclictest1049366-21kthreadcore08:30:470
945010991711,5cyclictest1099154-21head09:10:430
945010991711,2cyclictest134050irq/121-eno109:50:410
94501099170,5cyclictest1180550-21ssh10:03:580
94501099170,2cyclictest1105842-21ssh09:15:210
2649091172,2phc2sys0-21swapper/311:45:163
2649091171,2phc2sys0-21swapper/309:40:393
2649091170,2phc2sys0-21swapper/311:40:323
94501299167,3cyclictest0-21swapper/210:10:392
945012991614,1cyclictest0-21swapper/209:30:472
945012991613,1cyclictest0-21swapper/212:40:002
945012991613,1cyclictest0-21swapper/212:40:002
945012991613,1cyclictest0-21swapper/212:27:042
945012991613,1cyclictest0-21swapper/211:20:002
945012991613,1cyclictest0-21swapper/209:16:492
945012991613,1cyclictest0-21swapper/208:35:462
945012991613,1cyclictest0-21swapper/207:50:002
945012991612,2cyclictest0-21swapper/208:49:452
945012991611,2cyclictest0-21swapper/211:45:002
94501199169,4cyclictest1109-21hwrng08:16:571
94501199166,2cyclictest134050irq/121-eno110:50:431
94501199164,3cyclictest998653-21sshd07:50:431
945011991613,2cyclictest991212-21latency_hist07:45:001
945011991613,2cyclictest3851705-21mta-sts-daemon10:00:521
945011991613,2cyclictest1354025-21cat12:00:001
945011991613,2cyclictest1292024-21mailstats11:15:521
945011991613,2cyclictest1290-21dbus-daemon12:35:011
94501199161,2cyclictest3851705-21mta-sts-daemon12:22:311
945011991612,3cyclictest1013190-21kthreadcore08:00:471
94501099169,4cyclictest0-21swapper/008:05:410
945010991613,2cyclictest998131-21cpuspeed_turbos07:50:400
945010991613,2cyclictest1372721-21kthreadcore12:10:470
945010991613,2cyclictest1372721-21kthreadcore12:10:470
945010991612,3cyclictest1011630-21kthreadcore08:00:460
945010991610,4cyclictest0-21swapper/009:05:400
2649091161,2phc2sys0-21swapper/311:09:473
2649091160,2phc2sys0-21swapper/311:27:523
2649091160,2phc2sys0-21swapper/310:47:123
94501299159,2cyclictest0-21swapper/207:50:452
945012991513,1cyclictest0-21swapper/211:55:512
945012991513,1cyclictest0-21swapper/210:50:012
945012991513,1cyclictest0-21swapper/210:25:482
945012991513,1cyclictest0-21swapper/208:50:402
945012991512,2cyclictest0-21swapper/212:05:492
945012991512,1cyclictest0-21swapper/211:50:392
945012991512,1cyclictest0-21swapper/210:34:062
945012991512,1cyclictest0-21swapper/210:00:482
945012991512,1cyclictest0-21swapper/209:45:012
945012991512,1cyclictest0-21swapper/208:20:482
945012991512,1cyclictest0-21swapper/208:00:002
945012991512,1cyclictest0-21swapper/207:40:442
94501299150,13cyclictest0-21swapper/210:43:392
94501199158,4cyclictest3851702-21mta-sts-daemon09:01:051
94501199156,4cyclictest959858-21idleruntime-cro07:20:001
94501199156,2cyclictest17350irq/127-ahci[0000:00:17.0]09:40:011
945011991513,1cyclictest0-21swapper/110:45:001
945011991512,2cyclictest1337061-21mailstats11:45:501
945011991512,2cyclictest1146842-21kthreadcore09:40:471
945011991512,2cyclictest1093390-21kthreadcore09:05:451
945011991512,2cyclictest1067565-21gltestperf08:45:431
945011991511,3cyclictest3851705-21mta-sts-daemon12:26:421
945011991511,3cyclictest1056644-21kthreadcore08:35:461
945011991511,2cyclictest978863-21systemd-run07:35:021
94501199150,14cyclictest1053954-21grep08:35:001
94501099155,3cyclictest1294977-21grep11:20:430
94501299141,5cyclictest0-21swapper/209:25:402
945012991412,1cyclictest0-21swapper/212:20:362
945012991412,1cyclictest0-21swapper/211:30:022
945012991412,1cyclictest0-21swapper/209:55:012
945012991412,1cyclictest0-21swapper/209:35:432
945012991411,1cyclictest0-21swapper/211:20:362
945012991411,1cyclictest0-21swapper/211:12:062
945012991411,1cyclictest0-21swapper/209:00:452
945012991411,1cyclictest0-21swapper/208:30:512
945012991411,1cyclictest0-21swapper/208:25:482
945012991410,2cyclictest0-21swapper/209:22:172
945012991410,2cyclictest0-21swapper/207:30:012
94501199146,3cyclictest134050irq/121-eno111:50:411
94501199145,3cyclictest134050irq/121-eno107:45:401
94501199143,3cyclictest0-21swapper/109:50:401
945011991411,2cyclictest1156599-21mailstats09:45:501
945011991411,2cyclictest1046986-21mailstats08:25:521
945011991410,3cyclictest962800-21kthreadcore07:20:471
945011991410,3cyclictest1310625-21kthreadcore11:30:471
945011991410,3cyclictest1231764-21switchtime10:35:521
945011991410,3cyclictest1075970-21kthreadcore08:50:471
2649091141,4phc2sys0-21swapper/308:00:393
2649091140,2phc2sys0-21swapper/312:38:353
2649091140,2phc2sys0-21swapper/312:38:353
2649091140,2phc2sys0-21swapper/309:25:203
2649091140,1phc2sys0-21swapper/308:44:403
94501299131,7cyclictest0-21swapper/210:35:392
945012991311,1cyclictest0-21swapper/208:10:022
945012991310,1cyclictest0-21swapper/210:15:472
945012991310,1cyclictest0-21swapper/208:04:362
94501199136,2cyclictest134050irq/121-eno108:20:461
94501199136,2cyclictest134050irq/121-eno107:55:511
945011991310,2cyclictest1355410-21if_enp1s0.812:00:441
945010991310,2cyclictest945009-21cyclictest07:10:010
2649091131,2phc2sys0-21swapper/310:25:413
2649091131,1phc2sys0-21swapper/310:35:383
2649091130,2phc2sys0-21swapper/312:32:533
2649091130,2phc2sys0-21swapper/312:05:533
2649091130,2phc2sys0-21swapper/311:54:323
2649091130,2phc2sys0-21swapper/311:11:413
2649091130,2phc2sys0-21swapper/310:23:153
945012991210,1cyclictest0-21swapper/207:20:472
945012991210,1cyclictest0-21swapper/207:15:032
94501299120,6cyclictest0-21swapper/208:40:402
2649091123,2phc2sys0-21swapper/309:15:463
2649091121,3phc2sys0-21swapper/308:25:393
2649091120,1phc2sys0-21swapper/310:40:283
2649091120,1phc2sys0-21swapper/310:19:063
2649091120,1phc2sys0-21swapper/307:14:563
94501299118,1cyclictest0-21swapper/207:30:452
94501299111,5cyclictest0-21swapper/208:10:382
94501199118,2cyclictest945185-21systemd-run07:10:031
2649091114,2phc2sys0-21swapper/307:45:003
2649091111,4phc2sys0-21swapper/308:10:383
2649091111,2phc2sys0-21swapper/312:17:473
2649091111,2phc2sys0-21swapper/311:30:423
2649091111,2phc2sys0-21swapper/311:23:523
2649091110,2phc2sys0-21swapper/312:02:003
2649091110,2phc2sys0-21swapper/310:34:453
2649091110,2phc2sys0-21swapper/309:47:403
2649091110,2phc2sys0-21swapper/308:09:073
2649091110,1phc2sys0-21swapper/309:04:113
2649091110,1phc2sys0-21swapper/308:58:423
2649091110,1phc2sys0-21swapper/308:47:083
2649091110,1phc2sys0-21swapper/307:56:303
2649091110,1phc2sys0-21swapper/307:52:373
2649091110,1phc2sys0-21swapper/307:36:463
94501299108,1cyclictest0-21swapper/207:10:022
2649091102,2phc2sys0-21swapper/309:10:533
2649091102,1phc2sys0-21swapper/310:50:163
2649091101,2phc2sys0-21swapper/311:04:313
2649091101,2phc2sys0-21swapper/310:00:473
2649091101,2phc2sys0-21swapper/308:55:023
2649091100,2phc2sys0-21swapper/311:55:473
2649091100,2phc2sys0-21swapper/311:39:563
2649091100,2phc2sys0-21swapper/311:16:543
2649091100,2phc2sys0-21swapper/309:50:493
2649091100,2phc2sys0-21swapper/309:33:373
2649091100,2phc2sys0-21swapper/309:05:403
2649091100,2phc2sys0-21swapper/308:30:403
2649091100,2phc2sys0-21swapper/308:21:503
2649091100,2phc2sys0-21swapper/307:25:403
2649091100,2phc2sys0-21swapper/307:10:013
2649091100,1phc2sys0-21swapper/310:10:203
264909191,2phc2sys0-21swapper/307:30:413
264909190,2phc2sys0-21swapper/312:20:033
264909190,2phc2sys0-21swapper/312:12:383
264909190,2phc2sys0-21swapper/312:12:383
264909190,2phc2sys0-21swapper/310:06:123
264909190,2phc2sys0-21swapper/309:36:383
264909190,2phc2sys0-21swapper/308:35:493
264909190,2phc2sys0-21swapper/308:15:453
264909190,2phc2sys0-21swapper/307:45:403
264909190,2phc2sys0-21swapper/307:20:433
264909190,2phc2sys0-21swapper/307:15:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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