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2026-05-24 - 23:20
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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 rackdslot1.osadl.org (updated Sun May 24, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
595021640,6sleep01701899cyclictest11:20:270
1702199792,35cyclictest0-21swapper/309:45:103
1702199782,33cyclictest0-21swapper/307:30:163
1702199762,32cyclictest0-21swapper/311:35:223
1702199752,29cyclictest0-21swapper/308:40:143
1702199742,34cyclictest0-21swapper/311:00:173
1702199732,35cyclictest0-21swapper/309:05:253
1702199722,32cyclictest0-21swapper/311:30:183
1702099717,62cyclictest0-21swapper/211:35:282
134491710,20ptp4l26315-21apt-get07:30:110
1702199702,34cyclictest0-21swapper/310:40:183
17020997012,56cyclictest0-21swapper/211:30:282
17021996933,4cyclictest41-21ksoftirqd/307:25:193
1702199692,34cyclictest0-21swapper/311:40:243
1702199692,33cyclictest0-21swapper/308:55:263
1702199692,33cyclictest0-21swapper/308:55:263
1702099697,23cyclictest8543-21taskset09:10:042
17021996832,3cyclictest41-21ksoftirqd/307:53:173
1702199682,33cyclictest0-21swapper/310:25:203
1702199682,32cyclictest0-21swapper/312:30:193
36362670,6sleep20-21swapper/211:15:282
36362670,6sleep20-21swapper/211:15:282
1702199672,31cyclictest0-21swapper/310:50:273
1702099671,27cyclictest2022-21taskset12:21:502
1702099670,26cyclictest2457-21awk07:45:252
1702099670,26cyclictest18826-21taskset07:11:392
1702099660,27cyclictest6281-21chrt10:11:052
134491660,4ptp4l0-21swapper/107:10:301
17021996527,11cyclictest41-21ksoftirqd/310:01:003
1702099650,27cyclictest22342-21chrt09:37:272
1702099643,22cyclictest0-21swapper/212:19:252
1702099641,27cyclictest8776-21taskset10:18:362
1702099640,27cyclictest4224-21chrt10:09:122
1702099640,27cyclictest30863-21chrt07:39:562
247412630,4sleep00-21swapper/007:25:170
17021996331,4cyclictest41-21ksoftirqd/310:35:003
1702099632,27cyclictest23562-21chrt07:23:122
1702099632,27cyclictest23562-21chrt07:23:122
1702099632,26cyclictest614-21chrt07:43:252
1702099630,27cyclictest9916-21chrt08:00:382
1702099630,27cyclictest29458-21chrt11:02:162
1702099630,27cyclictest1349-21taskset08:55:022
1702099630,27cyclictest1349-21taskset08:55:022
1702099630,26cyclictest22584-21taskset11:56:262
1702099630,26cyclictest15137-21taskset09:21:142
17021996230,11cyclictest41-21ksoftirqd/311:45:173
1702099622,21cyclictest0-21swapper/209:51:142
1702099621,22cyclictest134691getstats10:20:112
1702099620,29cyclictest2545-21taskset12:25:062
1702099620,27cyclictest27065-21chrt10:56:142
1702099620,26cyclictest6657-21taskset12:31:452
1702099620,26cyclictest31602-21chrt09:57:252
1702099620,26cyclictest26953-21taskset09:46:422
1702099620,24cyclictest27276-21taskset12:06:422
134491620,7ptp4l0-21swapper/107:05:251
134491620,16ptp4l0-21swapper/009:45:180
1702099612,21cyclictest0-21swapper/210:33:512
1702099611,24cyclictest8934-21taskset12:36:302
1702099610,28cyclictest18248-21taskset11:49:492
1702099610,26cyclictest22666-21chrt10:49:282
1702099610,26cyclictest13246-21taskset10:26:462
1702099610,25cyclictest19980-21taskset09:34:212
1702099610,25cyclictest17465-21chrt09:26:322
1702099610,25cyclictest15883-21taskset11:44:022
1702099610,24cyclictest1397-21taskset10:00:572
17021996029,3cyclictest41-21ksoftirqd/308:10:503
17021996028,4cyclictest41-21ksoftirqd/309:16:033
1702099602,21cyclictest0-21swapper/208:25:362
1702099600,28cyclictest5346-21taskset07:51:142
1702099600,28cyclictest28338-21chrt07:34:422
1702099600,27cyclictest8784-21chrt11:26:342
1702099600,27cyclictest8066-21chrt09:06:542
1702099600,27cyclictest31831-21chrt11:08:142
1702099600,26cyclictest6515-21taskset11:24:422
1702099600,26cyclictest5673-21chrt09:00:402
1702099600,26cyclictest23836-21taskset08:31:242
1702099600,25cyclictest21145-21taskset07:16:572
1702099600,25cyclictest21145-21taskset07:16:572
134491600,4ptp4l0-21swapper/107:35:021
17021995931,4cyclictest41-21ksoftirqd/309:40:133
17021995928,4cyclictest41-21ksoftirqd/312:13:593
17021995922,4cyclictest41-21ksoftirqd/307:45:023
1702099592,22cyclictest0-21swapper/210:38:522
1702099591,25cyclictest12224-21taskset08:05:462
1702099590,27cyclictest28822-21taskset08:43:302
1702099590,27cyclictest14728-21chrt08:13:302
1702099590,26cyclictest7871-21taskset07:59:132
134491590,4ptp4l0-21swapper/307:24:393
134491590,4ptp4l0-21swapper/307:24:393
1702199586,8cyclictest41-21ksoftirqd/311:05:253
17021995829,9cyclictest41-21ksoftirqd/309:05:003
17021995827,5cyclictest41-21ksoftirqd/308:31:323
17021995827,4cyclictest41-21ksoftirqd/311:54:133
17021995827,4cyclictest41-21ksoftirqd/309:57:073
17021995826,5cyclictest41-21ksoftirqd/310:55:373
17021995824,9cyclictest41-21ksoftirqd/312:20:273
1702099582,22cyclictest0-21swapper/207:28:392
1702099580,26cyclictest26387-21taskset08:36:562
1702099580,26cyclictest25046-21chrt10:54:502
1702099580,25cyclictest24956-21chrt12:01:242
1702099580,25cyclictest24956-21chrt12:01:242
1702099580,25cyclictest16921-21chrt08:17:072
134491580,10ptp4l0-21swapper/111:30:551
17021995726,8cyclictest41-21ksoftirqd/307:55:203
17021995726,7cyclictest41-21ksoftirqd/310:48:473
1702099570,28cyclictest29980-21chrt12:14:122
17021995627,4cyclictest41-21ksoftirqd/312:26:153
17021995626,3cyclictest41-21ksoftirqd/308:46:513
17021995625,3cyclictest41-21ksoftirqd/312:36:313
1702099560,26cyclictest19163-21chrt08:21:042
1702099560,26cyclictest19163-21chrt08:21:042
134491560,4ptp4l0-21swapper/307:17:353
134491560,4ptp4l0-21swapper/307:17:353
134491560,4ptp4l0-21swapper/111:21:541
1702099550,28cyclictest12971-21chrt09:18:092
1702099550,24cyclictest30978-21taskset08:46:432
134491550,4ptp4l0-21swapper/110:39:331
134491550,4ptp4l0-21swapper/108:59:461
134491550,4ptp4l0-21swapper/108:59:461
1702199543,6cyclictest0-21swapper/309:25:133
17021995424,4cyclictest41-21ksoftirqd/309:32:023
17021995424,4cyclictest41-21ksoftirqd/307:10:153
1702199541,6cyclictest4306-21dump-pmu-power10:09:593
134491540,4ptp4l0-21swapper/312:15:433
17021995329,4cyclictest41-21ksoftirqd/310:38:203
1702199532,8cyclictest0-21swapper/309:20:283
17021995325,3cyclictest41-21ksoftirqd/310:10:433
17021995324,4cyclictest41-21ksoftirqd/311:28:423
1702199526,3cyclictest41-21ksoftirqd/312:05:233
1702199524,9cyclictest41-21ksoftirqd/307:45:013
1702199522,7cyclictest0-21swapper/308:50:123
17021995223,8cyclictest41-21ksoftirqd/311:13:323
134491520,5ptp4l0-21swapper/109:27:201
134491520,3ptp4l0-21swapper/310:23:243
1702199515,3cyclictest41-21ksoftirqd/309:10:283
1702199513,9cyclictest41-21ksoftirqd/311:20:003
1702199513,9cyclictest41-21ksoftirqd/311:20:003
1702199512,7cyclictest0-21swapper/308:05:183
1702199512,6cyclictest0-21swapper/312:00:133
1702199512,6cyclictest0-21swapper/312:00:123
1702199511,9cyclictest30934-21awk07:40:013
134491510,4ptp4l0-21swapper/112:17:531
134491510,4ptp4l0-21swapper/011:45:410
1702199502,6cyclictest0-21swapper/309:35:233
134491500,9ptp4l0-21swapper/009:09:450
134491500,4ptp4l0-21swapper/308:20:453
134491500,4ptp4l0-21swapper/308:20:453
134491500,4ptp4l0-21swapper/110:02:091
134491500,4ptp4l0-21swapper/009:51:110
134491500,3ptp4l0-21swapper/008:28:160
17021994938,3cyclictest41-21ksoftirqd/312:00:003
1702199492,6cyclictest0-21swapper/308:15:183
1702199491,9cyclictest41-21ksoftirqd/308:35:143
1702099492,22cyclictest0-21swapper/210:40:472
1702099492,21cyclictest0-21swapper/211:51:102
134491490,4ptp4l0-21swapper/112:24:351
134491490,4ptp4l0-21swapper/109:15:331
134491490,4ptp4l0-21swapper/012:23:250
17021994817,8cyclictest41-21ksoftirqd/310:20:003
1702199472,6cyclictest0-21swapper/309:50:153
1702199472,14cyclictest0-21swapper/308:28:033
1702099472,18cyclictest0-21swapper/211:12:082
134491470,7ptp4l14894-21df07:05:130
134491470,4ptp4l0-21swapper/108:05:351
1702199462,5cyclictest0-21swapper/311:22:153
1701999462,43cyclictest0-21swapper/109:32:381
134491460,4ptp4l0-21swapper/108:48:581
134491460,12ptp4l0-21swapper/112:25:391
1702199453,4cyclictest9640-21grep08:00:273
134491450,4ptp4l0-21swapper/008:10:330
134491450,3ptp4l1701899cyclictest12:04:450
134491450,3ptp4l1701899cyclictest12:04:450
134491440,9ptp4l0-21swapper/011:36:480
134491440,8ptp4l0-21swapper/111:51:441
134491440,5ptp4l1823-21iostat_ios07:45:181
134491440,4ptp4l0-21swapper/009:20:140
134491440,3ptp4l0-21swapper/012:10:030
134491440,3ptp4l0-21swapper/010:13:350
134491440,11ptp4l0-21swapper/011:30:170
134491440,10ptp4l0-21swapper/007:24:230
134491440,10ptp4l0-21swapper/007:24:230
134491430,9ptp4l25-21ksoftirqd/109:58:301
134491430,9ptp4l0-21swapper/007:44:570
134491430,9ptp4l0-21swapper/007:11:060
134491430,5ptp4l0-21swapper/010:15:260
134491430,4ptp4l19912-21iostat07:15:170
134491430,4ptp4l19912-21iostat07:15:170
134491430,4ptp4l18293-21df_inode09:30:140
134491430,3ptp4l6271-21apt-get09:05:121
1702099422,21cyclictest0-21swapper/208:54:522
1702099420,27cyclictest24593-21taskset09:40:552
134491420,5ptp4l25-21ksoftirqd/111:03:161
134491420,5ptp4l0-21swapper/008:30:100
134491420,4ptp4l8775-21df09:10:131
134491420,4ptp4l7960-21ntp_states10:15:211
134491420,4ptp4l5667-21ntp_states10:10:211
134491420,4ptp4l5173-21diskstats12:30:140
134491420,4ptp4l26018-21irqstats09:45:171
134491420,4ptp4l24022-21apt-get07:25:121
134491420,4ptp4l0-21swapper/011:44:350
134491420,4ptp4l0-21swapper/008:18:310
134491420,4ptp4l0-21swapper/008:05:150
134491410,5ptp4l25893-21mailstats08:35:261
134491410,5ptp4l0-21swapper/111:15:151
134491410,5ptp4l0-21swapper/111:15:151
134491410,5ptp4l0-21swapper/107:15:211
134491410,5ptp4l0-21swapper/107:15:211
134491410,5ptp4l0-21swapper/011:19:280
134491410,5ptp4l0-21swapper/011:19:280
134491410,5ptp4l0-21swapper/008:45:050
134491410,5ptp4l0-21swapper/008:35:280
134491410,4ptp4l8647-21hddtemp_smartct08:00:160
134491410,4ptp4l28209-21df12:10:131
134491410,4ptp4l0-21swapper/109:23:451
134491410,4ptp4l0-21swapper/108:53:401
134491410,4ptp4l0-21swapper/012:15:130
134491410,4ptp4l0-21swapper/011:08:480
134491410,4ptp4l0-21swapper/009:03:040
134491410,4ptp4l0-21swapper/008:55:130
134491410,4ptp4l0-21swapper/008:55:130
134491410,4ptp4l0-21swapper/008:50:220
134491410,4ptp4l0-21swapper/008:21:000
134491410,4ptp4l0-21swapper/008:21:000
134491410,3ptp4l7007-21apt-get11:25:121
134491410,3ptp4l5899-21apt-get07:55:141
134491410,3ptp4l28324-21ls08:40:261
134491410,3ptp4l2204-21apt-get10:05:110
134491410,3ptp4l17733-21df_inode08:20:151
134491410,3ptp4l17733-21df_inode08:20:151
134491410,3ptp4l12585-21ntp_states10:25:230
134491400,9ptp4l0-21swapper/112:32:211
134491400,5ptp4l29732-21sshd09:55:010
134491400,5ptp4l20647-21cpuspeed_turbos09:35:141
134491400,5ptp4l0-21swapper/111:41:171
134491400,5ptp4l0-21swapper/110:46:511
134491400,5ptp4l0-21swapper/110:43:171
134491400,5ptp4l0-21swapper/108:25:301
134491400,5ptp4l0-21swapper/012:05:480
134491400,4ptp4l9135-21iostat09:10:180
134491400,4ptp4l12017-21ls09:15:200
134491400,4ptp4l0-21swapper/111:56:211
134491400,4ptp4l0-21swapper/110:20:221
134491400,4ptp4l0-21swapper/108:19:401
134491400,4ptp4l0-21swapper/108:10:251
134491400,4ptp4l0-21swapper/107:50:201
134491400,4ptp4l0-21swapper/012:38:170
134491400,4ptp4l0-21swapper/012:25:240
134491400,4ptp4l0-21swapper/011:52:150
134491400,4ptp4l0-21swapper/011:28:000
134491400,4ptp4l0-21swapper/011:04:190
134491400,4ptp4l0-21swapper/010:53:390
134491400,4ptp4l0-21swapper/010:35:240
134491400,4ptp4l0-21swapper/010:00:260
134491400,4ptp4l0-21swapper/009:39:380
134491400,4ptp4l0-21swapper/009:25:120
134491400,4ptp4l0-21swapper/007:56:590
134491400,3ptp4l27475-21iostat_ios08:40:180
134491390,5ptp4l0-21swapper/109:42:371
134491390,4ptp4l32640-21tune2fs11:10:151
134491390,4ptp4l0-21swapper/112:36:461
134491390,4ptp4l0-21swapper/112:00:101
134491390,4ptp4l0-21swapper/112:00:101
134491390,4ptp4l0-21swapper/111:45:261
134491390,4ptp4l0-21swapper/111:35:531
134491390,4ptp4l0-21swapper/111:07:511
134491390,4ptp4l0-21swapper/110:55:211
134491390,4ptp4l0-21swapper/110:53:531
134491390,4ptp4l0-21swapper/110:25:111
134491390,4ptp4l0-21swapper/109:00:281
134491390,4ptp4l0-21swapper/108:30:121
134491390,4ptp4l0-21swapper/108:00:321
134491390,4ptp4l0-21swapper/107:40:121
134491390,4ptp4l0-21swapper/107:31:251
134491390,4ptp4l0-21swapper/107:20:221
134491390,4ptp4l0-21swapper/107:20:221
134491390,4ptp4l0-21swapper/011:55:170
134491390,4ptp4l0-21swapper/010:55:220
134491390,4ptp4l0-21swapper/010:46:420
134491390,4ptp4l0-21swapper/010:41:200
134491390,4ptp4l0-21swapper/010:30:160
134491390,4ptp4l0-21swapper/010:21:100
134491390,4ptp4l0-21swapper/009:43:350
134491390,4ptp4l0-21swapper/007:52:160
134491390,4ptp4l0-21swapper/007:45:240
134491390,3ptp4l26650-21/usr/sbin/munin12:05:241
134491390,3ptp4l0-21swapper/007:35:280
134491380,4ptp4l0-21swapper/110:05:191
134491380,4ptp4l0-21swapper/109:50:101
134491380,4ptp4l0-21swapper/011:10:570
134491380,3ptp4l0-21swapper/110:30:181
146702244,11sleep214686-21apt-get07:05:112
156382235,11sleep30-21swapper/307:05:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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