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2025-12-21 - 22:30
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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 rackdslot3.osadl.org (updated Sun Dec 21, 2025 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491206171,23phc2sys0-21swapper/307:05:573
113182201169,21sleep20-21swapper/207:05:032
131842200168,22sleep10-21swapper/107:06:351
111112200167,22sleep00-21swapper/007:05:010
333421340,4sleep11374899cyclictest09:00:271
2138321230,6sleep01374799cyclictest10:45:250
13747997534,7cyclictest9-21ksoftirqd/007:20:010
13747996728,7cyclictest9-21ksoftirqd/008:15:000
13747996632,5cyclictest9-21ksoftirqd/011:25:000
13747996434,7cyclictest9-21ksoftirqd/009:20:240
13747996428,6cyclictest9-21ksoftirqd/009:30:240
13747996330,6cyclictest9-21ksoftirqd/010:20:180
13747996328,6cyclictest9-21ksoftirqd/012:25:220
13747996328,6cyclictest9-21ksoftirqd/011:55:000
13747996326,7cyclictest9-21ksoftirqd/011:00:140
13747996231,5cyclictest9-21ksoftirqd/011:40:160
13747996228,5cyclictest9-21ksoftirqd/011:55:250
13747996129,6cyclictest9-21ksoftirqd/011:25:280
13747996129,6cyclictest9-21ksoftirqd/010:40:280
13747996129,4cyclictest9-21ksoftirqd/009:45:240
13747996127,5cyclictest9-21ksoftirqd/007:25:270
13747996126,6cyclictest9-21ksoftirqd/009:05:240
13747996122,4cyclictest9-21ksoftirqd/011:15:250
13747996118,7cyclictest9-21ksoftirqd/008:45:230
13747996029,5cyclictest9-21ksoftirqd/009:55:260
13747996028,8cyclictest9-21ksoftirqd/009:15:260
13747996028,6cyclictest9-21ksoftirqd/010:00:270
13747996028,5cyclictest9-21ksoftirqd/010:10:010
13747996028,5cyclictest9-21ksoftirqd/009:00:240
13747996027,4cyclictest9-21ksoftirqd/011:45:170
13747996026,6cyclictest9-21ksoftirqd/007:40:140
13747996022,4cyclictest9-21ksoftirqd/011:05:190
13747996022,4cyclictest9-21ksoftirqd/009:40:210
13747996022,3cyclictest9-21ksoftirqd/012:00:160
13747996022,3cyclictest9-21ksoftirqd/012:00:160
13747996020,6cyclictest9-21ksoftirqd/007:30:190
13747995931,7cyclictest9-21ksoftirqd/008:50:160
13747995928,5cyclictest9-21ksoftirqd/009:10:250
13747995927,5cyclictest9-21ksoftirqd/010:10:180
13747995927,5cyclictest9-21ksoftirqd/008:35:230
13747995927,4cyclictest9-21ksoftirqd/012:32:050
13747995926,4cyclictest9-21ksoftirqd/010:55:000
13747995925,5cyclictest9-21ksoftirqd/007:35:220
13747995921,4cyclictest9-21ksoftirqd/009:50:230
13747995920,4cyclictest9-21ksoftirqd/012:05:230
13747995920,4cyclictest9-21ksoftirqd/007:45:270
13747995920,4cyclictest9-21ksoftirqd/007:20:220
13747995823,6cyclictest9-21ksoftirqd/012:10:170
13747995822,5cyclictest9-21ksoftirqd/008:55:260
13747995822,4cyclictest9-21ksoftirqd/012:15:210
13747995728,6cyclictest9-21ksoftirqd/008:15:140
13747995725,7cyclictest9-21ksoftirqd/008:40:160
13747995721,4cyclictest9-21ksoftirqd/008:20:220
13747995720,4cyclictest9-21ksoftirqd/011:30:200
13747995626,4cyclictest9-21ksoftirqd/007:50:190
13747995626,3cyclictest9-21ksoftirqd/010:15:250
13747995624,4cyclictest9-21ksoftirqd/010:25:190
13747995610,2cyclictest9-21ksoftirqd/010:55:220
13747995526,4cyclictest9-21ksoftirqd/008:33:180
13747995526,4cyclictest9-21ksoftirqd/008:33:180
13747995526,3cyclictest9-21ksoftirqd/008:07:220
13747995525,4cyclictest9-21ksoftirqd/012:37:240
13747995525,4cyclictest9-21ksoftirqd/012:37:230
13747995525,4cyclictest9-21ksoftirqd/008:02:290
13747995523,6cyclictest9-21ksoftirqd/011:10:200
13747995518,4cyclictest9-21ksoftirqd/007:55:130
316882540,2sleep10-21swapper/112:15:191
13747995424,3cyclictest9-21ksoftirqd/010:31:200
13747995410,3cyclictest9-21ksoftirqd/010:35:260
139391530,1ptp4l401ktimersoftd/311:30:003
1374799523,6cyclictest9-21ksoftirqd/011:40:000
1374799517,3cyclictest9-21ksoftirqd/009:35:270
1374799515,3cyclictest9-21ksoftirqd/007:10:270
1374799515,2cyclictest9-21ksoftirqd/008:25:170
1374799493,4cyclictest9-21ksoftirqd/012:25:000
13747994834,2cyclictest9-21ksoftirqd/009:25:130
134491480,1getstats0-21swapper/308:10:343
43982470,1sleep30-21swapper/312:25:213
134491470,2getstats0-21swapper/308:15:343
139391460,11ptp4l0-21swapper/307:35:183
1374899462,3cyclictest16883-21seq08:22:441
139391440,0ptp4l401ktimersoftd/310:49:353
139391440,0ptp4l401ktimersoftd/308:53:263
139391430,0ptp4l401ktimersoftd/310:39:143
1374899430,3cyclictest26721-21date08:45:001
139391420,0ptp4l401ktimersoftd/311:10:013
13748994219,21cyclictest0-21swapper/110:00:131
57898410,2rtkit-daemon0-21swapper/210:37:292
139391410,0ptp4l401ktimersoftd/310:56:203
139391410,0ptp4l401ktimersoftd/309:57:313
13750993933,3cyclictest41-21ksoftirqd/308:25:003
1374899395,21cyclictest28266-21switchtime08:45:261
1374899394,22cyclictest10737-21seq09:18:241
134491390,1getstats0-21swapper/307:55:353
13750993832,3cyclictest41-21ksoftirqd/312:00:203
13750993832,3cyclictest41-21ksoftirqd/312:00:203
13748993833,3cyclictest25-21ksoftirqd/111:02:071
139391370,15ptp4l401ktimersoftd/309:10:253
13750993732,3cyclictest41-21ksoftirqd/310:50:203
13749993731,4cyclictest33-21ksoftirqd/210:16:592
13749993723,12cyclictest33-21ksoftirqd/210:01:222
13748993731,4cyclictest25-21ksoftirqd/110:45:501
13748993731,4cyclictest25-21ksoftirqd/109:54:231
13748993730,4cyclictest25-21ksoftirqd/110:32:061
1374899371,3cyclictest31733-21/usr/sbin/munin11:10:271
134391370,1getstats0-21swapper/307:50:283
57898360,5rtkit-daemon32525-21chrt07:47:332
13750993632,2cyclictest41-21ksoftirqd/309:40:003
13750993631,3cyclictest41-21ksoftirqd/309:50:003
13750993631,3cyclictest41-21ksoftirqd/307:25:003
13750993630,4cyclictest41-21ksoftirqd/307:31:323
13749993630,4cyclictest33-21ksoftirqd/210:29:462
13748993631,3cyclictest25-21ksoftirqd/109:05:141
13748993630,4cyclictest25-21ksoftirqd/109:30:121
13748993630,4cyclictest25-21ksoftirqd/108:27:391
13748993629,5cyclictest25-21ksoftirqd/107:25:001
57898350,6rtkit-daemon0-21swapper/209:49:272
13750993530,3cyclictest41-21ksoftirqd/310:05:003
13750993529,4cyclictest41-21ksoftirqd/311:51:153
13750993529,4cyclictest41-21ksoftirqd/310:27:583
13750993529,4cyclictest41-21ksoftirqd/310:06:043
13750993529,4cyclictest41-21ksoftirqd/309:40:293
13750993527,5cyclictest41-21ksoftirqd/309:05:153
13749993530,3cyclictest33-21ksoftirqd/209:40:112
13749993530,3cyclictest33-21ksoftirqd/207:54:162
13749993529,4cyclictest33-21ksoftirqd/212:06:142
13749993529,4cyclictest33-21ksoftirqd/209:17:212
13749993529,4cyclictest33-21ksoftirqd/208:42:472
13749993528,4cyclictest33-21ksoftirqd/210:51:592
13748993530,3cyclictest25-21ksoftirqd/111:57:351
13748993530,3cyclictest25-21ksoftirqd/109:36:021
13748993530,3cyclictest25-21ksoftirqd/107:32:151
13748993529,4cyclictest25-21ksoftirqd/112:39:351
13748993529,4cyclictest25-21ksoftirqd/112:39:351
13748993529,4cyclictest25-21ksoftirqd/112:26:111
13748993529,4cyclictest25-21ksoftirqd/112:10:541
13748993529,4cyclictest25-21ksoftirqd/110:40:591
13748993529,4cyclictest25-21ksoftirqd/110:26:001
13748993529,4cyclictest25-21ksoftirqd/108:17:031
13748993529,4cyclictest25-21ksoftirqd/108:07:161
13748993529,4cyclictest25-21ksoftirqd/107:36:271
57898340,2rtkit-daemon0-21swapper/307:15:533
57898340,2rtkit-daemon0-21swapper/210:13:032
57898340,2rtkit-daemon0-21swapper/208:10:072
139391340,0ptp4l401ktimersoftd/311:10:183
13750993430,3cyclictest41-21ksoftirqd/309:25:143
13749993429,3cyclictest33-21ksoftirqd/208:16:342
13749993428,4cyclictest33-21ksoftirqd/211:56:422
13749993428,4cyclictest33-21ksoftirqd/210:42:222
13749993428,4cyclictest33-21ksoftirqd/209:56:412
13749993428,4cyclictest33-21ksoftirqd/209:06:542
13749993428,4cyclictest33-21ksoftirqd/208:03:162
13749993428,4cyclictest33-21ksoftirqd/207:22:562
13749993428,4cyclictest33-21ksoftirqd/207:19:532
13748993429,3cyclictest25-21ksoftirqd/109:21:371
13748993429,3cyclictest25-21ksoftirqd/109:14:411
13748993428,4cyclictest25-21ksoftirqd/111:51:091
13748993428,4cyclictest25-21ksoftirqd/111:42:581
13748993428,4cyclictest25-21ksoftirqd/108:37:251
13748993428,4cyclictest25-21ksoftirqd/107:49:421
13748993428,4cyclictest25-21ksoftirqd/107:17:341
139391330,0ptp4l401ktimersoftd/307:46:283
13750993329,2cyclictest41-21ksoftirqd/311:20:003
13750993328,3cyclictest41-21ksoftirqd/309:30:143
13750993328,3cyclictest41-21ksoftirqd/308:45:003
13750993328,3cyclictest41-21ksoftirqd/308:25:113
13750993327,4cyclictest41-21ksoftirqd/311:57:083
13750993327,4cyclictest41-21ksoftirqd/308:47:343
13750993327,3cyclictest41-21ksoftirqd/311:35:203
13749993328,3cyclictest33-21ksoftirqd/210:31:192
13749993327,4cyclictest33-21ksoftirqd/211:52:572
13749993327,4cyclictest33-21ksoftirqd/211:18:202
13749993327,4cyclictest33-21ksoftirqd/211:03:282
13749993327,4cyclictest33-21ksoftirqd/208:48:412
13749993326,4cyclictest33-21ksoftirqd/209:03:012
13748993328,3cyclictest25-21ksoftirqd/110:13:161
13748993328,3cyclictest25-21ksoftirqd/109:59:491
13748993328,3cyclictest25-21ksoftirqd/108:01:511
13748993327,4cyclictest25-21ksoftirqd/110:55:051
13748993327,4cyclictest25-21ksoftirqd/110:05:101
13748993327,4cyclictest25-21ksoftirqd/108:53:381
1374899330,3cyclictest16572-21sort11:45:131
139391320,0ptp4l401ktimersoftd/309:20:113
139391320,0ptp4l401ktimersoftd/307:11:063
13750993228,2cyclictest41-21ksoftirqd/312:20:223
13750993228,2cyclictest139391ptp4l11:20:183
13750993227,3cyclictest41-21ksoftirqd/310:30:043
13750993227,3cyclictest41-21ksoftirqd/308:04:163
13750993226,4cyclictest41-21ksoftirqd/312:19:503
13750993226,4cyclictest41-21ksoftirqd/311:32:493
13750993226,4cyclictest41-21ksoftirqd/310:18:243
13750993226,3cyclictest41-21ksoftirqd/312:10:263
13750993222,8cyclictest41-21ksoftirqd/308:55:283
13749993227,3cyclictest33-21ksoftirqd/211:33:092
13749993227,3cyclictest33-21ksoftirqd/207:40:112
13749993226,4cyclictest33-21ksoftirqd/212:27:272
13749993226,4cyclictest33-21ksoftirqd/212:11:282
13749993226,4cyclictest33-21ksoftirqd/211:14:352
13749993226,4cyclictest33-21ksoftirqd/210:47:192
13749993226,4cyclictest33-21ksoftirqd/209:53:442
13749993226,4cyclictest33-21ksoftirqd/208:34:252
13749993226,4cyclictest33-21ksoftirqd/208:34:252
13749993226,3cyclictest33-21ksoftirqd/211:20:592
13749993225,5cyclictest33-21ksoftirqd/212:00:512
13749993225,5cyclictest33-21ksoftirqd/212:00:512
13749993225,5cyclictest33-21ksoftirqd/208:28:232
13748993227,3cyclictest25-21ksoftirqd/110:51:551
13748993226,4cyclictest25-21ksoftirqd/111:23:281
13748993226,4cyclictest25-21ksoftirqd/109:26:391
13748993226,4cyclictest25-21ksoftirqd/107:41:171
13748993226,4cyclictest25-21ksoftirqd/107:11:441
139391310,0ptp4l401ktimersoftd/309:00:223
13750993127,3cyclictest41-21ksoftirqd/310:40:203
13750993127,3cyclictest41-21ksoftirqd/309:15:203
13750993127,2cyclictest41-21ksoftirqd/311:45:273
13750993127,2cyclictest41-21ksoftirqd/308:40:003
13750993126,3cyclictest41-21ksoftirqd/311:02:543
13750993126,3cyclictest41-21ksoftirqd/308:30:263
13750993126,3cyclictest41-21ksoftirqd/308:30:263
13750993126,3cyclictest41-21ksoftirqd/308:10:003
13750993125,4cyclictest41-21ksoftirqd/307:43:033
13750993125,3cyclictest41-21ksoftirqd/311:45:003
13749993127,2cyclictest33-21ksoftirqd/208:57:392
13749993125,4cyclictest33-21ksoftirqd/212:31:082
13749993125,4cyclictest33-21ksoftirqd/211:43:032
13749993125,4cyclictest33-21ksoftirqd/211:06:202
13749993125,4cyclictest33-21ksoftirqd/209:33:382
13749993125,4cyclictest33-21ksoftirqd/209:22:152
13749993125,4cyclictest33-21ksoftirqd/208:08:502
13748993126,3cyclictest25-21ksoftirqd/111:29:131
13748993125,4cyclictest25-21ksoftirqd/112:34:331
13748993125,4cyclictest25-21ksoftirqd/112:05:371
13748993125,4cyclictest25-21ksoftirqd/112:04:491
13748993125,4cyclictest25-21ksoftirqd/112:04:491
13748993125,4cyclictest25-21ksoftirqd/111:33:441
13748993125,4cyclictest25-21ksoftirqd/109:48:211
13748993125,4cyclictest25-21ksoftirqd/108:59:231
13750993026,2cyclictest41-21ksoftirqd/312:40:013
13750993026,2cyclictest41-21ksoftirqd/312:40:003
13750993025,3cyclictest41-21ksoftirqd/310:20:163
13749993026,2cyclictest33-21ksoftirqd/208:22:312
13749993024,4cyclictest33-21ksoftirqd/212:35:382
13749993024,4cyclictest33-21ksoftirqd/212:35:382
13749993024,4cyclictest33-21ksoftirqd/211:35:092
13749993024,4cyclictest33-21ksoftirqd/210:07:362
13749993024,4cyclictest33-21ksoftirqd/208:36:352
1374899307,20cyclictest8643-21if_err_enp4s010:20:181
13748993024,4cyclictest25-21ksoftirqd/108:33:081
13748993024,4cyclictest25-21ksoftirqd/108:33:081
13748993023,5cyclictest25-21ksoftirqd/107:29:251
139391290,0ptp4l401ktimersoftd/309:54:113
13750992923,4cyclictest41-21ksoftirqd/312:10:003
13749992924,3cyclictest33-21ksoftirqd/210:56:472
13749992923,4cyclictest33-21ksoftirqd/211:48:002
13749992923,4cyclictest33-21ksoftirqd/207:13:152
1374899297,19cyclictest15294-21grep10:35:121
13748992924,3cyclictest25-21ksoftirqd/111:07:421
13748992924,3cyclictest25-21ksoftirqd/107:55:001
13748992912,14cyclictest2304-21sendmail_mailst12:20:241
1374899290,3cyclictest2117-21/usr/sbin/munin11:15:171
139391280,1ptp4l0-21swapper/310:12:013
13750992823,3cyclictest41-21ksoftirqd/307:27:173
13750992822,4cyclictest41-21ksoftirqd/312:31:183
13749992823,3cyclictest33-21ksoftirqd/207:37:492
13749992822,4cyclictest33-21ksoftirqd/209:12:242
13749992822,4cyclictest33-21ksoftirqd/208:50:422
1374899286,19cyclictest11848-21unixbench_multi08:10:261
13748992822,4cyclictest25-21ksoftirqd/107:57:011
1374899280,24cyclictest11096-21apt-get11:35:041
13749992722,3cyclictest33-21ksoftirqd/209:35:222
13749992721,4cyclictest33-21ksoftirqd/212:18:542
13749992620,4cyclictest33-21ksoftirqd/207:32:192
13748992621,3cyclictest25-21ksoftirqd/109:42:401
1374899261,21cyclictest0-21swapper/110:15:141
13749992520,3cyclictest33-21ksoftirqd/212:20:352
13749992520,3cyclictest33-21ksoftirqd/210:23:222
13749992519,4cyclictest33-21ksoftirqd/211:28:032
13749992419,3cyclictest33-21ksoftirqd/209:29:302
13749992116,3cyclictest33-21ksoftirqd/207:26:212
13749992015,3cyclictest33-21ksoftirqd/207:56:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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