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2026-07-20 - 19:24
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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 highest latencies:
System rackdslot1.osadl.org (updated Mon Jul 20, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32412997332,10cyclictest33-21ksoftirqd/211:10:012
32412997332,10cyclictest33-21ksoftirqd/211:10:012
3241299684,61cyclictest10011-21awk10:55:292
32412996731,6cyclictest33-21ksoftirqd/208:15:272
32412996529,5cyclictest33-21ksoftirqd/208:20:192
32412996431,4cyclictest33-21ksoftirqd/210:50:012
32412996421,7cyclictest33-21ksoftirqd/208:25:502
32412996331,4cyclictest33-21ksoftirqd/211:55:282
32412996325,7cyclictest33-21ksoftirqd/207:54:292
32412996232,5cyclictest33-21ksoftirqd/210:30:232
32412996230,5cyclictest33-21ksoftirqd/208:10:042
32412996230,5cyclictest33-21ksoftirqd/208:10:042
32412996229,3cyclictest33-21ksoftirqd/209:25:282
32412996228,5cyclictest33-21ksoftirqd/208:50:172
32412996224,9cyclictest33-21ksoftirqd/210:20:012
3241299622,25cyclictest0-21swapper/210:25:242
32410996223,5cyclictest9-21ksoftirqd/007:34:090
32410996223,5cyclictest9-21ksoftirqd/007:34:090
134491620,4ptp4l0-21swapper/311:36:083
134491620,4ptp4l0-21swapper/311:36:073
32412996132,6cyclictest33-21ksoftirqd/209:15:182
32412996130,5cyclictest33-21ksoftirqd/208:30:192
32412996129,5cyclictest33-21ksoftirqd/208:35:252
32412996128,5cyclictest33-21ksoftirqd/209:30:182
32412996127,9cyclictest33-21ksoftirqd/211:05:002
32412996125,7cyclictest33-21ksoftirqd/211:34:332
32412996124,7cyclictest33-21ksoftirqd/211:17:322
32412996119,7cyclictest33-21ksoftirqd/212:11:572
32410996128,5cyclictest9-21ksoftirqd/007:50:140
32410996125,8cyclictest9-21ksoftirqd/010:10:250
32410996124,5cyclictest9-21ksoftirqd/012:15:010
134491610,23ptp4l0-21swapper/109:40:191
32412996027,5cyclictest33-21ksoftirqd/212:35:182
32412996027,5cyclictest33-21ksoftirqd/212:35:182
32412996027,5cyclictest33-21ksoftirqd/209:20:142
32412996023,7cyclictest33-21ksoftirqd/211:45:412
32412996021,7cyclictest33-21ksoftirqd/209:08:072
3241099605,6cyclictest16204-21dump-pmu-power07:45:000
32410996029,6cyclictest9-21ksoftirqd/012:30:160
32410996027,5cyclictest9-21ksoftirqd/009:50:130
32410996025,5cyclictest9-21ksoftirqd/012:05:200
3241299593,6cyclictest33-21ksoftirqd/210:05:002
32412995930,6cyclictest33-21ksoftirqd/209:00:152
32412995929,8cyclictest33-21ksoftirqd/207:50:012
32412995929,4cyclictest33-21ksoftirqd/209:15:012
32412995926,6cyclictest33-21ksoftirqd/208:45:172
32410995930,8cyclictest9-21ksoftirqd/007:55:230
32410995930,5cyclictest9-21ksoftirqd/009:30:150
32410995929,5cyclictest9-21ksoftirqd/010:05:280
32410995926,5cyclictest9-21ksoftirqd/008:21:120
32410995924,5cyclictest9-21ksoftirqd/011:09:410
32410995924,5cyclictest9-21ksoftirqd/011:09:410
131532590,4sleep33241399cyclictest08:45:213
32412995828,6cyclictest33-21ksoftirqd/207:15:002
32412995823,13cyclictest33-21ksoftirqd/207:19:472
3241299582,2cyclictest121rcu_preempt07:40:142
32412995822,7cyclictest33-21ksoftirqd/211:42:402
32412995819,5cyclictest33-21ksoftirqd/212:25:152
32412995817,6cyclictest33-21ksoftirqd/211:25:122
32410995827,3cyclictest9-21ksoftirqd/007:19:400
32410995826,3cyclictest9-21ksoftirqd/009:56:100
32410995826,3cyclictest9-21ksoftirqd/009:56:100
32410995825,3cyclictest9-21ksoftirqd/011:40:040
134491580,4ptp4l0-21swapper/111:55:121
134491580,4ptp4l0-21swapper/012:02:190
134491580,3ptp4l0-21swapper/110:15:201
32412995729,3cyclictest33-21ksoftirqd/211:35:242
32412995729,3cyclictest33-21ksoftirqd/211:35:232
32412995723,5cyclictest33-21ksoftirqd/211:10:292
32412995722,8cyclictest33-21ksoftirqd/210:20:402
32412995721,8cyclictest33-21ksoftirqd/208:00:552
32412995720,7cyclictest33-21ksoftirqd/210:07:322
134491570,4ptp4l0-21swapper/309:14:123
32412995627,7cyclictest33-21ksoftirqd/212:35:012
32412995622,9cyclictest33-21ksoftirqd/212:25:002
32410995626,3cyclictest9-21ksoftirqd/011:56:570
32410995624,4cyclictest9-21ksoftirqd/008:40:280
32410995623,2cyclictest9-21ksoftirqd/010:37:180
32410995623,2cyclictest9-21ksoftirqd/010:37:180
134491560,3ptp4l0-21swapper/312:10:313
134491560,3ptp4l0-21swapper/212:04:572
134491560,3ptp4l0-21swapper/108:15:261
32412995520,7cyclictest33-21ksoftirqd/210:40:582
32412995519,7cyclictest33-21ksoftirqd/209:39:562
32410995527,3cyclictest9-21ksoftirqd/008:54:030
32410995526,2cyclictest9-21ksoftirqd/011:27:010
32410995523,6cyclictest9-21ksoftirqd/008:05:250
134491550,3ptp4l0-21swapper/309:54:563
134491550,3ptp4l0-21swapper/109:49:551
32412995423,9cyclictest33-21ksoftirqd/210:10:262
32412995422,7cyclictest33-21ksoftirqd/209:43:372
32412995419,7cyclictest33-21ksoftirqd/208:41:472
3241099545,7cyclictest9-21ksoftirqd/009:00:280
3241099544,6cyclictest9-21ksoftirqd/011:10:300
32410995430,3cyclictest9-21ksoftirqd/012:27:020
32410995427,6cyclictest9-21ksoftirqd/011:04:000
32410995427,5cyclictest9-21ksoftirqd/008:00:420
32410995424,3cyclictest9-21ksoftirqd/011:34:230
32410995421,3cyclictest9-21ksoftirqd/009:46:360
32410995420,6cyclictest9-21ksoftirqd/007:25:240
134491540,4ptp4l0-21swapper/109:01:471
134491540,4ptp4l0-21swapper/108:05:071
32413995327,4cyclictest41-21ksoftirqd/307:35:183
32412995320,7cyclictest33-21ksoftirqd/207:25:402
32412995317,7cyclictest33-21ksoftirqd/212:09:322
32412995316,3cyclictest33-21ksoftirqd/209:50:222
3241099536,6cyclictest9-21ksoftirqd/010:15:170
3241099535,4cyclictest9-21ksoftirqd/008:55:270
3241099534,6cyclictest24486-21sendmail-msp12:40:010
3241099534,6cyclictest24486-21sendmail-msp12:40:010
3241099532,8cyclictest0-21swapper/010:55:160
32410995328,9cyclictest9-21ksoftirqd/009:06:210
32410995327,4cyclictest9-21ksoftirqd/010:41:330
32410995326,3cyclictest9-21ksoftirqd/011:37:510
32410995326,3cyclictest9-21ksoftirqd/011:37:510
32410995325,4cyclictest9-21ksoftirqd/010:20:500
134491530,3ptp4l12628-21fw_packets08:45:180
134491530,19ptp4l25-21ksoftirqd/107:45:581
3241299526,3cyclictest33-21ksoftirqd/211:20:272
3241099524,9cyclictest9-21ksoftirqd/009:25:000
32410995225,5cyclictest9-21ksoftirqd/009:26:100
32410995221,8cyclictest9-21ksoftirqd/008:15:150
134491520,9ptp4l30079-21apt-get07:05:122
32412995116,7cyclictest33-21ksoftirqd/208:06:362
3241299510,9cyclictest33-21ksoftirqd/210:35:202
3241299510,9cyclictest33-21ksoftirqd/210:35:202
3241099512,7cyclictest9-21ksoftirqd/012:25:010
32410995122,3cyclictest9-21ksoftirqd/011:20:060
32410995121,2cyclictest9-21ksoftirqd/011:51:260
3241099512,10cyclictest9-21ksoftirqd/007:40:000
134491510,4ptp4l0-21swapper/209:45:472
134491510,3ptp4l0-21swapper/010:45:140
32412995021,5cyclictest33-21ksoftirqd/210:50:192
32412995017,9cyclictest33-21ksoftirqd/207:30:012
32412995017,9cyclictest33-21ksoftirqd/207:30:012
3241099506,3cyclictest28186-21ls10:25:300
3241099505,6cyclictest9-21ksoftirqd/008:30:140
3241099504,5cyclictest9-21ksoftirqd/010:30:160
3241099502,6cyclictest9-21ksoftirqd/009:35:190
32410995025,3cyclictest9-21ksoftirqd/007:24:500
32410995022,3cyclictest9-21ksoftirqd/012:17:470
134491500,4ptp4l0-21swapper/311:12:453
134491500,4ptp4l0-21swapper/207:39:392
134491500,4ptp4l0-21swapper/108:44:361
3241299494,7cyclictest33-21ksoftirqd/208:55:262
32412994915,7cyclictest33-21ksoftirqd/212:18:272
3241099494,5cyclictest9-21ksoftirqd/008:35:200
3241099493,5cyclictest9-21ksoftirqd/010:55:000
3241099493,5cyclictest9-21ksoftirqd/009:10:280
134491490,4ptp4l0-21swapper/312:22:513
134491490,4ptp4l0-21swapper/311:43:053
134491490,4ptp4l0-21swapper/111:05:091
134491490,4ptp4l0-21swapper/111:05:091
134491490,3ptp4l0-21swapper/311:54:413
134491490,3ptp4l0-21swapper/310:47:043
3241299483,8cyclictest33-21ksoftirqd/207:20:242
3241299482,3cyclictest121rcu_preempt11:50:292
3241099484,5cyclictest9-21ksoftirqd/007:45:140
3241099483,5cyclictest9-21ksoftirqd/009:15:260
32410994821,2cyclictest9-21ksoftirqd/011:16:050
3241099480,5cyclictest9-21ksoftirqd/010:03:050
134491480,5ptp4l0-21swapper/107:10:011
3241299471,5cyclictest0-21swapper/207:55:192
3241099475,7cyclictest9-21ksoftirqd/008:10:250
3241099475,7cyclictest9-21ksoftirqd/008:10:250
3241099473,6cyclictest9-21ksoftirqd/008:25:300
3241099473,5cyclictest9-21ksoftirqd/009:40:190
3241099472,6cyclictest0-21swapper/007:11:590
134491470,4ptp4l0-21swapper/310:17:353
134491470,4ptp4l0-21swapper/109:07:391
134491470,3ptp4l0-21swapper/310:20:333
134491470,3ptp4l0-21swapper/307:50:023
134491470,10ptp4l0-21swapper/112:15:371
32412994613,8cyclictest33-21ksoftirqd/209:59:392
32412994613,8cyclictest33-21ksoftirqd/209:59:392
32410994625,5cyclictest9-21ksoftirqd/011:45:520
134491460,4ptp4l0-21swapper/311:03:483
32413994540,3cyclictest41-21ksoftirqd/307:20:003
134491450,5ptp4l31194-21ntp_states07:05:233
3241199442,14cyclictest31690-21kworker/1:012:05:081
134491440,9ptp4l0-21swapper/109:29:561
134491440,3ptp4l0-21swapper/312:33:253
134491440,3ptp4l0-21swapper/310:55:323
32413994338,3cyclictest41-21ksoftirqd/309:59:593
32413994338,3cyclictest41-21ksoftirqd/309:59:593
3241399430,3cyclictest121rcu_preempt11:07:583
3241399430,3cyclictest121rcu_preempt11:07:583
134691430,11getstats0-21swapper/110:35:581
134691430,11getstats0-21swapper/110:35:581
134691430,10getstats0-21swapper/110:14:081
134491430,5ptp4l32706-21ps11:45:253
134491430,4ptp4l9520-21apt-get07:30:121
134491430,4ptp4l9520-21apt-get07:30:121
134491430,4ptp4l0-21swapper/310:53:273
134491430,4ptp4l0-21swapper/107:23:451
134491430,3ptp4l0-21swapper/310:34:433
134491430,11ptp4l16906-21cpuspeed_turbos08:55:131
134691420,10getstats0-21swapper/110:02:301
134491420,5ptp4l0-21swapper/108:35:141
134491420,4ptp4l4130-21hddtemp_smartct11:55:183
134491420,4ptp4l31488-21apt-get10:35:113
134491420,4ptp4l31488-21apt-get10:35:113
134491420,4ptp4l25291-21meminfo10:20:191
134491420,4ptp4l22539-21df_inode11:25:141
32413994137,2cyclictest41-21ksoftirqd/309:24:593
32413994135,3cyclictest41-21ksoftirqd/312:40:003
32413994135,3cyclictest41-21ksoftirqd/312:40:003
3241399412,3cyclictest121rcu_preempt10:05:583
134691410,10getstats0-21swapper/111:54:551
134691410,10getstats0-21swapper/111:13:031
134691410,10getstats0-21swapper/108:53:281
134691410,10getstats0-21swapper/108:22:001
134491410,5ptp4l7216-21df07:25:111
134491410,5ptp4l0-21swapper/312:25:123
134491410,5ptp4l0-21swapper/311:30:143
134491410,5ptp4l0-21swapper/307:55:133
134491410,5ptp4l0-21swapper/107:55:271
134491410,4ptp4l9207-21irqstats10:55:191
134491410,4ptp4l3947-21meminfo08:25:221
134491410,4ptp4l29502-21iostat10:30:171
134491410,4ptp4l26625-21iostat_ios09:15:191
134491410,4ptp4l20982-21meminfo12:30:211
134491410,4ptp4l19043-21diskstats07:50:151
134491410,4ptp4l18840-21users10:05:281
134491410,4ptp4l17552-21/usr/sbin/munin11:15:223
134491410,4ptp4l15809-21users07:40:281
134491410,4ptp4l10825-21iostat_ios09:50:171
134491410,3ptp4l971-21apt-get09:30:111
134491410,3ptp4l3348-21apt-get09:35:121
134491410,3ptp4l31440-21apt-get11:45:131
134491410,3ptp4l12860-21diskstats09:55:141
134491410,3ptp4l12860-21diskstats09:55:141
32413994035,3cyclictest41-21ksoftirqd/308:20:013
32413994034,3cyclictest41-21ksoftirqd/307:10:183
134491400,6ptp4l0-21swapper/007:07:430
134491400,5ptp4l41-21ksoftirqd/308:51:153
134491400,5ptp4l2824-21chrt07:15:171
134491400,5ptp4l0-21swapper/308:55:263
134491400,5ptp4l0-21swapper/107:08:031
134491400,4ptp4l24186-21iostat_ios08:00:191
134491400,4ptp4l0-21swapper/309:46:113
134491400,4ptp4l0-21swapper/308:25:253
134491400,4ptp4l0-21swapper/307:45:173
134491400,4ptp4l0-21swapper/109:10:231
134491400,4ptp4l0-21swapper/108:12:491
134491400,4ptp4l0-21swapper/108:12:491
134491400,3ptp4l29989-21ls08:10:293
134491400,3ptp4l29989-21ls08:10:293
134491390,5ptp4l0-21swapper/312:15:173
134491390,4ptp4l31092-21dpkg09:25:113
134491390,4ptp4l12254-21hddtemp_smartct07:35:151
134491390,4ptp4l0-21swapper/312:05:203
134491390,4ptp4l0-21swapper/311:26:063
134491390,4ptp4l0-21swapper/310:28:293
134491390,4ptp4l0-21swapper/310:10:573
134491390,4ptp4l0-21swapper/309:36:583
134491390,4ptp4l0-21swapper/309:15:263
134491390,4ptp4l0-21swapper/309:01:423
134491390,4ptp4l0-21swapper/308:37:313
134491390,4ptp4l0-21swapper/308:06:303
134491390,4ptp4l0-21swapper/307:21:253
134491390,4ptp4l0-21swapper/112:25:471
134491390,4ptp4l0-21swapper/112:20:141
134491390,4ptp4l0-21swapper/112:10:261
134491390,4ptp4l0-21swapper/112:01:091
134491390,4ptp4l0-21swapper/111:15:261
134491390,4ptp4l0-21swapper/110:41:131
134491390,4ptp4l0-21swapper/110:27:181
134491390,4ptp4l0-21swapper/109:22:181
134491390,4ptp4l0-21swapper/108:30:231
134491390,3ptp4l23323-21meminfo12:35:201
134491390,3ptp4l23323-21meminfo12:35:201
32413993832,3cyclictest41-21ksoftirqd/310:00:183
32413993822,4cyclictest41-21ksoftirqd/310:45:003
134491380,4ptp4l1566-21/usr/sbin/munin09:30:173
134491380,4ptp4l0-21swapper/311:24:113
134491380,4ptp4l0-21swapper/309:05:333
134491380,4ptp4l0-21swapper/308:41:253
134491380,4ptp4l0-21swapper/308:33:433
134491380,4ptp4l0-21swapper/307:40:113
134491380,4ptp4l0-21swapper/307:28:073
134491380,4ptp4l0-21swapper/111:40:591
134491380,4ptp4l0-21swapper/111:20:101
134491380,4ptp4l0-21swapper/108:45:021
134491380,3ptp4l0-21swapper/312:00:213
134491380,3ptp4l0-21swapper/307:30:233
134491380,3ptp4l0-21swapper/307:30:233
134491380,3ptp4l0-21swapper/111:36:021
134491380,3ptp4l0-21swapper/111:36:021
134491380,3ptp4l0-21swapper/111:30:401
134491380,3ptp4l0-21swapper/110:45:231
134491370,4ptp4l0-21swapper/110:51:211
134491370,3ptp4l0-21swapper/309:40:253
134491370,3ptp4l0-21swapper/308:20:053
134491370,3ptp4l0-21swapper/111:00:221
134491360,3ptp4l0-21swapper/308:00:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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