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2025-12-18 - 15:27
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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 Thu Dec 18, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12223192980,1sleep11222320-21ls10:13:321
12223192980,1sleep11222320-21ls10:13:321
1001600992819,8cyclictest1-21systemd07:15:021
2649091271,4phc2sys0-21swapper/310:18:283
1001601992220,1cyclictest0-21swapper/211:50:022
1001600992214,7cyclictest1290-21dbus-daemon09:45:011
1001600992211,3cyclictest1171300-21kthreadcore09:28:371
1001600992211,2cyclictest1089708-21gltestperf08:23:311
1001599992219,2cyclictest1294314-21sh11:10:010
100160199217,9cyclictest0-21swapper/207:50:022
100160199213,15cyclictest1282134-21chrt11:00:012
100160099218,5cyclictest1140912-21tr09:03:371
1001600992112,8cyclictest1058300-21apt-key07:55:011
1001600992111,9cyclictest1106528-21idleruntime-cro08:35:001
1001600992110,3cyclictest1039335-21pmu-power07:38:401
1001599992118,2cyclictest1327-21in:imuxsock08:35:010
1001599992118,2cyclictest1290-21dbus-daemon07:15:020
100160099209,3cyclictest1235414-21kthreadcore10:23:351
1001600992017,2cyclictest1290-21dbus-daemon12:40:011
1001600992017,2cyclictest1290-21dbus-daemon11:10:001
1001600992016,3cyclictest1287472-21mailstats11:03:421
1001600992011,8cyclictest1180293-21cut09:38:331
1001600992011,2cyclictest1391158-21aten_repower_en12:33:291
1001600992011,2cyclictest1136909-21cron09:00:001
1001600992011,1cyclictest1198077-21aten2.4-expect09:53:291
1001600992010,3cyclictest1274414-21kthreadcore10:53:371
1001600992010,2cyclictest1019523-21kthreadcore07:23:371
100160199190,15cyclictest1034283-21chrt07:35:042
100160099199,3cyclictest1099057-21kthreadcore08:28:401
100160099199,2cyclictest1366612-21sh12:10:011
100160099199,2cyclictest1277708-21irqrtprio10:58:341
100160099199,2cyclictest1220357-21kthreadcore10:08:361
100160099198,2cyclictest1-21systemd10:00:021
1001600991916,2cyclictest1327-21in:imuxsock11:20:011
1001600991910,2cyclictest1327455-21kthreadcore11:38:371
1001600991910,2cyclictest1261540-21kthreadcore10:43:381
1001600991910,2cyclictest1146359-21kthreadcore09:08:361
1001599991916,2cyclictest1326-21systemd-logind11:05:010
1001599991916,2cyclictest1185085-21cron09:40:000
1001599991915,3cyclictest1327-21in:imuxsock08:50:020
1001601991815,1cyclictest0-21swapper/209:20:002
100160099189,2cyclictest1265440-21irqcore10:48:351
100160099189,2cyclictest1249505-21kthreadcore10:33:381
100160099189,2cyclictest1066047-21irqrtprio08:03:341
100160099189,2cyclictest0-21swapper/111:15:011
100160099188,2cyclictest1349288-21cpuspeed_turbos11:58:311
1001600991816,1cyclictest1118862-21turbostat08:45:001
1001600991810,2cyclictest1230031-21kthreadcore10:18:341
1001600991810,2cyclictest1162909-21kthreadcore09:23:361
1001599991815,2cyclictest1058319-21apt-key07:55:010
1001601991714,1cyclictest0-21swapper/212:40:002
1001601991714,1cyclictest0-21swapper/209:45:012
1001601991714,1cyclictest0-21swapper/209:03:352
1001601991714,1cyclictest0-21swapper/208:05:012
100160099179,2cyclictest1388799-21kthreadcore12:28:371
100160099179,2cyclictest1046917-21cpuspeed_turbos07:48:331
1001600991714,2cyclictest1348434-21sh11:55:001
1001600991713,3cyclictest1256148-21kthreadcore10:38:371
1001600991713,3cyclictest1155601-21aten_repower_en09:18:311
1001600991713,3cyclictest1109072-21kthreadcore08:38:381
100159999172,10cyclictest1126027-21grep08:53:330
1001599991713,3cyclictest1313-21gmain09:35:010
1001599991713,3cyclictest1288-1atopacctd07:25:020
100159999170,2cyclictest0-21swapper/010:18:350
100159999170,10cyclictest0-21swapper/010:55:000
1001601991613,1cyclictest0-21swapper/210:45:012
1001601991613,1cyclictest0-21swapper/208:18:392
100160199161,12cyclictest1118928-21taskset08:45:012
100160199160,13cyclictest1378461-21chrt12:19:562
100160199160,13cyclictest1294577-21chrt11:10:032
100160199160,13cyclictest1197399-21chrt09:49:562
100160199160,13cyclictest1033965-21chrt07:34:562
100160099168,2cyclictest1315429-21kthreadcore11:28:371
1001600991613,2cyclictest1319506-21cut11:33:341
1001600991613,2cyclictest1076431-21cut08:10:011
1001600991612,3cyclictest1193323-21kthreadcore09:48:361
1001599991613,2cyclictest1361602-21fschecks_count12:08:330
1001599991613,2cyclictest1324363-21awk11:35:010
1001599991613,2cyclictest1082953-21/usr/sbin/munin08:18:320
1001599991612,3cyclictest1001597-21cyclictest10:10:000
100159999161,13cyclictest1071901-21sed08:08:340
2649091150,3phc2sys0-21swapper/309:13:353
2649091150,2phc2sys0-21swapper/311:58:433
2649091150,2phc2sys0-21swapper/310:33:343
2649091150,2phc2sys0-21swapper/309:59:563
1001601991512,1cyclictest0-21swapper/210:48:322
1001601991512,1cyclictest0-21swapper/210:23:342
1001601991512,1cyclictest0-21swapper/209:30:002
1001601991512,1cyclictest0-21swapper/209:25:012
1001601991512,1cyclictest0-21swapper/209:08:422
100160199151,11cyclictest1179321-21chrt09:35:022
100160199151,11cyclictest1064382-21chrt08:00:002
1001601991511,1cyclictest0-21swapper/210:13:382
1001601991511,1cyclictest0-21swapper/210:13:382
100160199150,12cyclictest1100801-21chrt08:30:022
100160199150,12cyclictest1076667-21chrt08:10:022
100160099156,2cyclictest0-21swapper/108:53:331
1001600991512,2cyclictest1367313-21cpuspeed_turbos12:13:331
1001600991512,2cyclictest1307632-21gltestperf11:23:331
1001600991511,3cyclictest1340362-21kthreadcore11:48:371
100159999158,4cyclictest1143642-21tail09:08:300
100159999157,6cyclictest1195594-21tr09:48:370
100159999153,7cyclictest1118367-21plymouth08:43:410
1001599991512,2cyclictest1402818-21apt-key12:40:010
1001599991512,2cyclictest1360680-21latency_hist12:05:020
1001599991512,2cyclictest1350810-21kthreadcore11:58:350
1001599991512,2cyclictest1329729-21head11:38:400
1001599991512,2cyclictest1306353-21systemd-run11:20:010
1001599991512,2cyclictest1288-1atopacctd08:25:020
1001599991512,2cyclictest1263979-21apt-key10:45:010
1001599991512,2cyclictest1257569-21cron10:40:010
1001599991511,3cyclictest1142399-21mailstats09:03:410
1001599991510,1cyclictest0-21swapper/007:38:290
100159999150,6cyclictest1001483-21kworker/0:3+events07:28:300
100160199144,5cyclictest12474192sleep210:33:372
1001601991412,1cyclictest0-21swapper/211:33:382
1001601991412,1cyclictest0-21swapper/211:05:012
1001601991412,1cyclictest0-21swapper/208:48:352
1001601991411,1cyclictest0-21swapper/212:28:372
1001601991411,1cyclictest0-21swapper/212:13:382
1001601991411,1cyclictest0-21swapper/211:43:392
1001601991411,1cyclictest0-21swapper/211:28:382
1001601991411,1cyclictest0-21swapper/210:53:422
1001601991411,1cyclictest0-21swapper/210:19:552
1001601991411,1cyclictest0-21swapper/210:03:362
1001601991411,1cyclictest0-21swapper/209:58:352
1001601991411,1cyclictest0-21swapper/209:13:362
1001601991411,1cyclictest0-21swapper/208:58:352
1001601991411,1cyclictest0-21swapper/207:23:332
1001601991411,1cyclictest0-21swapper/207:13:332
1001601991410,2cyclictest0-21swapper/212:08:312
100160199140,12cyclictest1221521-21chrt10:10:002
100160199140,11cyclictest1390810-21chrt12:30:022
100160199140,11cyclictest1378798-21chrt12:20:042
100160199140,11cyclictest1324662-21chrt11:35:042
100160199140,11cyclictest1306406-21chrt11:20:012
100160199140,11cyclictest1294004-21chrt11:09:592
100160199140,11cyclictest1245543-21chrt10:29:562
100160199140,11cyclictest11977162sleep209:50:042
1001600991411,2cyclictest1355772-21gltestperf12:03:341
1001600991411,2cyclictest1078273-21kernelversion08:13:361
1001600991411,2cyclictest1041210-21fschecks_time07:43:341
1001600991411,2cyclictest1011686-21irqrtprio07:18:331
1001600991410,3cyclictest1376082-21kthreadcore12:18:371
1001600991410,3cyclictest1333949-21kthreadcore11:43:381
1001600991410,3cyclictest1001597-21cyclictest07:58:361
100159999145,5cyclictest0-21swapper/011:40:350
100159999145,5cyclictest0-21swapper/010:57:350
1001599991412,1cyclictest1390547-21perf12:30:000
1001599991411,2cyclictest1378007-21mailstats12:18:420
1001599991411,2cyclictest1343928-21irqcore11:53:360
1001599991411,2cyclictest1290-21dbus-daemon08:00:000
1001599991411,2cyclictest1251096-21mailstats10:33:420
1001599991411,2cyclictest1235997-21kthreadcore10:23:340
1001599991411,2cyclictest1227018-21mailstats10:13:410
1001599991411,2cyclictest1227018-21mailstats10:13:410
1001599991411,2cyclictest1210853-21if_enp1s010:03:340
1001599991411,2cyclictest1187412-21kthreadcore09:43:350
1001599991411,2cyclictest1173081-21perf09:30:000
1001599991411,2cyclictest1156836-21kthreadcore09:18:370
1001599991411,2cyclictest1001597-21cyclictest08:03:350
1001599991411,2cyclictest0-21swapper/012:15:010
1001599991410,3cyclictest1312930-21aten_repower_cu11:28:310
1001599991410,3cyclictest1200514-21kthreadcore09:53:360
1001599991410,3cyclictest1047807-21irqrtprio07:48:370
2649091130,1phc2sys0-21swapper/309:27:513
1001601991311,1cyclictest0-21swapper/211:55:002
1001601991311,1cyclictest0-21swapper/209:38:352
1001601991311,1cyclictest0-21swapper/208:53:372
1001601991310,1cyclictest0-21swapper/208:38:392
1001601991310,1cyclictest0-21swapper/208:28:362
1001601991310,1cyclictest0-21swapper/208:23:342
1001601991310,1cyclictest0-21swapper/207:43:352
1001601991310,1cyclictest0-21swapper/207:28:372
100160199130,11cyclictest1052327-21taskset07:50:022
100160199130,10cyclictest1354748-21chrt12:00:042
100160199130,10cyclictest1312533-21chrt11:25:022
100160199130,10cyclictest1015840-21chrt07:19:572
100160099136,5cyclictest257-21systemd-journal10:30:001
1001600991310,2cyclictest1210108-21head10:03:301
1001600991310,2cyclictest1154939-21sh09:15:011
1001600991310,2cyclictest1122836-21kthreadcore08:48:361
1001600991310,2cyclictest1028626-21aten_repower_fr07:33:311
1001600991310,2cyclictest0-21swapper/109:34:281
100159999139,3cyclictest1288-1atopacctd07:18:360
100159999135,7cyclictest1337011-21aten2.4-expect11:48:300
100159999135,6cyclictest1996-21runrttasks10:47:510
100159999134,5cyclictest0-21swapper/008:56:290
100159999134,4cyclictest1241401-21sed10:28:350
1001599991311,2cyclictest171ktimers/007:40:500
100159999131,11cyclictest0-21swapper/011:13:300
1001599991310,2cyclictest1391825-21tail12:33:320
1001599991310,2cyclictest1382757-21kthreadcore12:23:390
1001599991310,2cyclictest1310730-21kthreadcore11:23:370
1001599991310,2cyclictest1206765-21kthreadcore09:58:370
1001599991310,2cyclictest1162555-21irqcore09:23:350
1001599991310,2cyclictest1151116-21kthreadcore09:13:380
1001599991310,2cyclictest0-21swapper/008:15:010
100159999130,8cyclictest1107342-21/usr/sbin/munin08:38:320
2649091120,2phc2sys0-21swapper/308:23:273
13937372120,2sleep30-21swapper/312:33:353
1001601991210,1cyclictest0-21swapper/208:13:372
100160199120,10cyclictest13486982chrt11:55:032
100160199120,10cyclictest1257561-21chrt10:39:582
100160099129,2cyclictest1380827-21kthreadcore12:23:381
100160099127,3cyclictest134050irq/121-eno108:20:021
100159999129,2cyclictest1095197-21tail08:28:330
100159999129,2cyclictest1030029-21kthreadcore07:33:360
2649091118,1phc2sys0-21swapper/311:06:353
2649091113,2phc2sys0-21swapper/310:13:393
2649091113,2phc2sys0-21swapper/310:13:393
2649091111,2phc2sys0-21swapper/310:23:413
2649091111,2phc2sys0-21swapper/307:18:273
2649091110,2phc2sys0-21swapper/310:42:193
2649091110,2phc2sys0-21swapper/309:23:303
2649091110,2phc2sys0-21swapper/307:35:093
2649091110,1phc2sys0-21swapper/312:21:433
2649091110,1phc2sys0-21swapper/312:10:533
2649091110,1phc2sys0-21swapper/312:00:553
2649091110,1phc2sys0-21swapper/310:29:143
100160099118,2cyclictest0-21swapper/107:28:371
2649091101,3phc2sys0-21swapper/310:53:343
2649091101,2phc2sys0-21swapper/311:50:013
2649091101,2phc2sys0-21swapper/307:08:293
2649091101,1phc2sys0-21swapper/311:35:343
2649091100,2phc2sys0-21swapper/312:09:403
2649091100,2phc2sys0-21swapper/311:27:113
2649091100,2phc2sys0-21swapper/310:38:363
2649091100,2phc2sys0-21swapper/310:03:293
2649091100,2phc2sys0-21swapper/308:58:303
2649091100,2phc2sys0-21swapper/308:51:043
2649091100,2phc2sys0-21swapper/308:09:553
2649091100,2phc2sys0-21swapper/307:28:373
2649091100,1phc2sys0-21swapper/310:45:413
2649091100,1phc2sys0-21swapper/309:34:003
2649091100,1phc2sys0-21swapper/309:06:193
2649091100,1phc2sys0-21swapper/308:28:003
2649091100,1phc2sys0-21swapper/308:03:593
290229890,4rtkit-daemon996972-21sed07:08:321
264909192,2phc2sys0-21swapper/312:36:583
264909191,2phc2sys0-21swapper/311:43:313
264909191,2phc2sys0-21swapper/310:08:303
264909191,2phc2sys0-21swapper/308:13:413
264909191,2phc2sys0-21swapper/307:53:373
264909191,1phc2sys0-21swapper/311:05:003
264909190,2phc2sys0-21swapper/312:26:283
264909190,2phc2sys0-21swapper/311:13:303
264909190,2phc2sys0-21swapper/309:53:363
264909190,2phc2sys0-21swapper/309:43:303
264909190,2phc2sys0-21swapper/309:40:013
264909190,2phc2sys0-21swapper/309:18:333
264909190,2phc2sys0-21swapper/308:48:323
264909190,2phc2sys0-21swapper/308:33:293
264909190,2phc2sys0-21swapper/307:46:153
264909190,2phc2sys0-21swapper/307:33:383
264909190,2phc2sys0-21swapper/307:15:023
264909190,1phc2sys0-21swapper/312:17:183
264909190,1phc2sys0-21swapper/308:18:383
10016019998,0cyclictest0-21swapper/207:10:012
10015999997,1cyclictest0-21swapper/007:10:010
264909182,3phc2sys0-21swapper/307:41:103
264909181,2phc2sys0-21swapper/307:20:553
264909180,2phc2sys0-21swapper/310:58:273
264909180,2phc2sys0-21swapper/309:48:433
264909180,2phc2sys0-21swapper/309:03:393
264909180,2phc2sys0-21swapper/308:38:383
264909180,1phc2sys0-21swapper/311:51:143
264909180,1phc2sys0-21swapper/311:33:383
264909180,1phc2sys0-21swapper/311:16:203
264909180,1phc2sys0-21swapper/308:42:353
264909180,1phc2sys0-21swapper/307:55:543
264909170,2phc2sys0-21swapper/311:20:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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