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2026-04-09 - 08:57
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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 rackdslot3.osadl.org (updated Thu Apr 09, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205171,22phc2sys0-21swapper/319:07:433
114532205171,22sleep10-21swapper/119:08:471
114522204170,23sleep00-21swapper/019:08:460
115342202169,22sleep20-21swapper/219:09:452
844221450,1sleep30-21swapper/321:15:253
131282860,7sleep01184599cyclictest23:40:240
144852680,1sleep214486-21/usr/sbin/munin22:35:272
27972600,3sleep20-21swapper/200:25:262
27972600,3sleep20-21swapper/200:25:262
139391570,1ptp4l401ktimersoftd/320:51:463
139391530,1ptp4l391rcuc/322:05:403
139391510,1ptp4l401ktimersoftd/321:33:553
139391510,1ptp4l391rcuc/322:45:383
257272500,1sleep325728-21mandb00:07:153
71352480,2sleep10-21swapper/123:30:141
11848994842,3cyclictest6528-21latency_hist23:30:003
11848994842,3cyclictest6528-21latency_hist23:30:003
139391440,0ptp4l401ktimersoftd/322:44:313
139391430,0ptp4l401ktimersoftd/322:50:193
139391420,0ptp4l401ktimersoftd/321:51:093
11848994133,5cyclictest27286-21latency_hist20:50:003
11846994135,4cyclictest16297-21cron21:35:001
139391390,1ptp4l401ktimersoftd/321:45:273
139391380,0ptp4l401ktimersoftd/319:48:323
11848993834,2cyclictest41-21ksoftirqd/323:49:593
11846993832,4cyclictest25-21ksoftirqd/122:55:481
139391370,0ptp4l401ktimersoftd/321:58:433
11848993732,3cyclictest41-21ksoftirqd/323:20:003
11846993731,4cyclictest25-21ksoftirqd/121:47:121
11846993731,4cyclictest25-21ksoftirqd/120:03:501
139391360,0ptp4l401ktimersoftd/322:20:103
11848993630,4cyclictest41-21ksoftirqd/300:24:043
11848993629,4cyclictest41-21ksoftirqd/320:09:103
11847993630,4cyclictest33-21ksoftirqd/222:25:562
11847993630,4cyclictest33-21ksoftirqd/222:25:562
11847993630,4cyclictest33-21ksoftirqd/219:42:532
11847993630,4cyclictest33-21ksoftirqd/219:42:532
11846993631,3cyclictest25-21ksoftirqd/119:30:091
11846993631,3cyclictest25-21ksoftirqd/100:20:101
11846993630,4cyclictest25-21ksoftirqd/122:13:281
11846993630,4cyclictest25-21ksoftirqd/121:51:011
1184899353,2cyclictest121rcu_preempt23:03:393
11848993530,3cyclictest41-21ksoftirqd/320:00:003
11848993529,4cyclictest41-21ksoftirqd/320:18:003
11847993530,3cyclictest33-21ksoftirqd/221:03:452
11847993529,4cyclictest33-21ksoftirqd/223:25:342
11847993529,4cyclictest33-21ksoftirqd/223:25:342
11847993529,4cyclictest33-21ksoftirqd/223:18:112
11847993529,4cyclictest33-21ksoftirqd/221:27:032
11847993529,4cyclictest33-21ksoftirqd/221:07:502
11847993529,4cyclictest33-21ksoftirqd/200:18:412
11847993528,5cyclictest33-21ksoftirqd/223:40:372
11846993531,2cyclictest25-21ksoftirqd/121:15:001
11846993530,3cyclictest25-21ksoftirqd/123:44:211
11846993530,3cyclictest25-21ksoftirqd/122:05:001
11846993529,4cyclictest25-21ksoftirqd/123:51:271
11846993529,4cyclictest25-21ksoftirqd/122:39:111
11846993529,4cyclictest25-21ksoftirqd/120:39:571
11845993530,3cyclictest9-21ksoftirqd/023:55:120
11845993530,3cyclictest9-21ksoftirqd/023:55:120
11848993428,4cyclictest41-21ksoftirqd/321:35:093
11848993427,5cyclictest41-21ksoftirqd/300:17:143
11847993429,3cyclictest33-21ksoftirqd/222:10:132
11847993429,3cyclictest33-21ksoftirqd/220:40:182
11847993429,3cyclictest33-21ksoftirqd/200:37:562
11847993428,4cyclictest33-21ksoftirqd/219:58:422
11847993428,4cyclictest33-21ksoftirqd/200:34:502
11847993428,4cyclictest33-21ksoftirqd/200:13:072
11847993427,5cyclictest33-21ksoftirqd/222:42:292
11847993427,5cyclictest33-21ksoftirqd/219:37:082
11847993427,4cyclictest33-21ksoftirqd/221:55:442
11847993427,4cyclictest33-21ksoftirqd/220:19:082
11846993429,3cyclictest25-21ksoftirqd/119:55:121
11846993428,4cyclictest25-21ksoftirqd/123:09:001
11846993428,4cyclictest25-21ksoftirqd/123:05:001
11846993428,4cyclictest25-21ksoftirqd/122:44:441
11846993428,4cyclictest25-21ksoftirqd/122:20:581
11846993428,4cyclictest25-21ksoftirqd/120:55:531
11846993428,4cyclictest25-21ksoftirqd/120:23:241
11846993428,4cyclictest25-21ksoftirqd/100:38:591
11846993428,4cyclictest25-21ksoftirqd/100:32:561
11845993428,4cyclictest9-21ksoftirqd/023:46:420
11845993428,4cyclictest9-21ksoftirqd/022:29:230
11845993428,4cyclictest9-21ksoftirqd/022:29:230
11845993428,4cyclictest9-21ksoftirqd/021:25:290
11845993428,4cyclictest9-21ksoftirqd/020:38:150
11845993428,4cyclictest9-21ksoftirqd/020:14:480
11845993428,4cyclictest9-21ksoftirqd/019:16:290
11845993428,4cyclictest9-21ksoftirqd/000:17:430
11848993328,3cyclictest41-21ksoftirqd/322:40:013
11848993328,3cyclictest41-21ksoftirqd/322:20:003
11848993328,3cyclictest41-21ksoftirqd/320:30:173
11848993327,4cyclictest41-21ksoftirqd/323:21:173
11848993327,4cyclictest41-21ksoftirqd/323:11:513
11848993327,4cyclictest41-21ksoftirqd/320:29:083
11848993326,5cyclictest41-21ksoftirqd/323:52:173
11847993328,3cyclictest33-21ksoftirqd/221:52:232
11847993327,4cyclictest33-21ksoftirqd/221:44:442
11847993327,4cyclictest33-21ksoftirqd/221:12:392
11847993327,4cyclictest33-21ksoftirqd/219:25:522
11846993328,3cyclictest25-21ksoftirqd/122:30:121
11846993328,3cyclictest25-21ksoftirqd/100:25:101
11846993328,3cyclictest25-21ksoftirqd/100:25:101
11846993327,4cyclictest25-21ksoftirqd/123:47:421
11846993327,4cyclictest25-21ksoftirqd/120:29:231
11846993327,4cyclictest25-21ksoftirqd/119:27:321
11845993328,3cyclictest9-21ksoftirqd/000:26:160
11845993328,3cyclictest9-21ksoftirqd/000:26:160
11845993327,4cyclictest9-21ksoftirqd/021:54:090
11845993327,4cyclictest9-21ksoftirqd/020:48:540
11845993327,4cyclictest9-21ksoftirqd/020:02:380
11845993327,4cyclictest9-21ksoftirqd/019:26:060
11845993327,4cyclictest9-21ksoftirqd/019:22:220
11848993229,2cyclictest41-21ksoftirqd/319:40:013
11848993227,3cyclictest41-21ksoftirqd/323:10:013
11848993227,3cyclictest41-21ksoftirqd/322:57:263
11848993227,3cyclictest41-21ksoftirqd/319:13:273
11848993227,2cyclictest41-21ksoftirqd/319:25:173
11848993226,4cyclictest41-21ksoftirqd/322:32:233
11848993226,4cyclictest41-21ksoftirqd/322:29:143
11848993226,4cyclictest41-21ksoftirqd/322:29:143
11848993226,4cyclictest41-21ksoftirqd/321:20:553
11848993226,4cyclictest41-21ksoftirqd/320:21:223
11848993226,4cyclictest41-21ksoftirqd/320:00:073
11848993226,4cyclictest41-21ksoftirqd/300:33:423
11848993226,4cyclictest41-21ksoftirqd/300:15:003
11848993226,4cyclictest41-21ksoftirqd/300:01:373
11848993226,3cyclictest41-21ksoftirqd/323:30:183
11847993226,4cyclictest33-21ksoftirqd/223:12:492
11847993226,4cyclictest33-21ksoftirqd/222:49:192
11847993226,4cyclictest33-21ksoftirqd/222:16:142
11847993226,4cyclictest33-21ksoftirqd/220:52:132
11847993226,4cyclictest33-21ksoftirqd/220:06:372
11847993226,3cyclictest33-21ksoftirqd/221:18:232
11846993227,3cyclictest25-21ksoftirqd/123:40:011
11846993226,4cyclictest25-21ksoftirqd/122:51:181
11846993226,4cyclictest25-21ksoftirqd/121:36:131
11846993226,4cyclictest25-21ksoftirqd/120:33:231
11846993226,4cyclictest25-21ksoftirqd/119:46:051
11846993226,4cyclictest25-21ksoftirqd/119:17:251
11846993226,4cyclictest25-21ksoftirqd/100:17:321
11846993220,10cyclictest25-21ksoftirqd/121:00:131
11845993228,3cyclictest9-21ksoftirqd/019:54:500
11845993227,3cyclictest9-21ksoftirqd/023:51:310
11845993227,3cyclictest9-21ksoftirqd/000:14:560
11845993226,4cyclictest9-21ksoftirqd/023:04:290
11845993226,4cyclictest9-21ksoftirqd/022:57:070
11845993226,4cyclictest9-21ksoftirqd/021:49:000
139391310,0ptp4l401ktimersoftd/321:12:153
139391310,0ptp4l401ktimersoftd/319:50:173
139391310,0ptp4l401ktimersoftd/319:40:133
139391310,0ptp4l401ktimersoftd/319:40:123
11848993126,3cyclictest41-21ksoftirqd/322:05:003
11848993126,3cyclictest41-21ksoftirqd/321:00:013
11848993126,3cyclictest41-21ksoftirqd/300:25:383
11848993126,3cyclictest41-21ksoftirqd/300:25:383
11848993125,4cyclictest41-21ksoftirqd/323:40:263
11848993125,4cyclictest41-21ksoftirqd/320:45:003
11847993126,3cyclictest33-21ksoftirqd/223:10:002
11847993126,3cyclictest33-21ksoftirqd/222:59:062
11847993126,3cyclictest33-21ksoftirqd/222:31:002
11847993126,3cyclictest33-21ksoftirqd/220:10:182
11847993125,4cyclictest33-21ksoftirqd/223:31:552
11847993125,4cyclictest33-21ksoftirqd/223:23:202
11847993125,4cyclictest33-21ksoftirqd/222:06:112
11847993125,4cyclictest33-21ksoftirqd/221:39:352
11847993125,4cyclictest33-21ksoftirqd/221:21:382
11847993125,4cyclictest33-21ksoftirqd/220:59:152
11847993125,4cyclictest33-21ksoftirqd/200:07:062
11846993127,3cyclictest25-21ksoftirqd/121:44:541
11846993126,3cyclictest25-21ksoftirqd/120:53:371
11846993126,3cyclictest25-21ksoftirqd/119:25:001
11846993125,4cyclictest25-21ksoftirqd/122:07:341
11846993125,4cyclictest25-21ksoftirqd/121:24:581
11846993125,4cyclictest25-21ksoftirqd/119:41:251
11846993125,4cyclictest25-21ksoftirqd/119:41:251
11846993125,3cyclictest3423-21cpuspeed_turbos22:15:131
11845993126,3cyclictest9-21ksoftirqd/021:30:460
11845993126,3cyclictest9-21ksoftirqd/021:09:000
11845993126,3cyclictest26792-21fschecks_count19:40:140
11845993126,3cyclictest26792-21fschecks_count19:40:140
11845993125,4cyclictest9-21ksoftirqd/023:16:290
11845993125,4cyclictest9-21ksoftirqd/022:51:140
11845993125,4cyclictest9-21ksoftirqd/022:44:320
11845993125,4cyclictest9-21ksoftirqd/022:09:140
11845993125,4cyclictest9-21ksoftirqd/020:51:200
11845993125,4cyclictest9-21ksoftirqd/020:17:570
139391300,0ptp4l401ktimersoftd/320:35:153
139391300,0ptp4l401ktimersoftd/319:15:533
11848993026,2cyclictest41-21ksoftirqd/323:35:273
11848993025,3cyclictest41-21ksoftirqd/321:03:343
11848993024,4cyclictest41-21ksoftirqd/319:21:283
11848993024,4cyclictest41-21ksoftirqd/300:38:563
11847993025,3cyclictest33-21ksoftirqd/222:50:512
11847993025,3cyclictest33-21ksoftirqd/222:02:302
11847993025,3cyclictest33-21ksoftirqd/220:29:082
11847993025,3cyclictest33-21ksoftirqd/220:21:142
11847993024,4cyclictest33-21ksoftirqd/223:56:352
11847993024,4cyclictest33-21ksoftirqd/223:56:352
11847993024,4cyclictest33-21ksoftirqd/221:48:012
11847993024,4cyclictest33-21ksoftirqd/219:17:032
11847993024,4cyclictest33-21ksoftirqd/200:21:212
11847993024,3cyclictest33-21ksoftirqd/223:36:112
11846993025,3cyclictest25-21ksoftirqd/119:35:181
11846993024,4cyclictest25-21ksoftirqd/121:57:231
11846993024,4cyclictest25-21ksoftirqd/121:05:041
11846993024,4cyclictest25-21ksoftirqd/120:47:071
11846993024,4cyclictest25-21ksoftirqd/119:14:121
11845993025,3cyclictest9-21ksoftirqd/021:02:130
11845993025,3cyclictest9-21ksoftirqd/000:35:590
11845993024,4cyclictest9-21ksoftirqd/023:33:540
11845993024,4cyclictest9-21ksoftirqd/023:08:390
11845993024,4cyclictest9-21ksoftirqd/022:48:530
11845993024,4cyclictest9-21ksoftirqd/022:36:250
11845993024,4cyclictest9-21ksoftirqd/021:21:120
11845993024,4cyclictest9-21ksoftirqd/021:15:120
11845993024,4cyclictest9-21ksoftirqd/020:28:360
11845993024,4cyclictest9-21ksoftirqd/019:35:410
11845993024,4cyclictest9-21ksoftirqd/019:14:230
11845993024,4cyclictest9-21ksoftirqd/000:09:320
139391290,10ptp4l0-21swapper/323:59:323
139391290,10ptp4l0-21swapper/323:59:313
11848992924,3cyclictest41-21ksoftirqd/321:25:133
11847992924,3cyclictest33-21ksoftirqd/222:21:262
11847992924,3cyclictest33-21ksoftirqd/220:45:562
11847992924,3cyclictest33-21ksoftirqd/219:46:062
11847992923,4cyclictest33-21ksoftirqd/220:01:282
11846992924,3cyclictest25-21ksoftirqd/123:13:041
11846992924,3cyclictest25-21ksoftirqd/100:14:151
11846992924,3cyclictest25-21ksoftirqd/100:00:131
11846992923,4cyclictest25-21ksoftirqd/123:55:281
11846992923,4cyclictest25-21ksoftirqd/123:55:281
11846992923,4cyclictest25-21ksoftirqd/123:23:121
11846992923,4cyclictest25-21ksoftirqd/119:50:161
11846992922,4cyclictest25-21ksoftirqd/123:30:001
11846992922,4cyclictest25-21ksoftirqd/123:30:001
11845992925,3cyclictest9-21ksoftirqd/023:35:360
11845992924,3cyclictest9-21ksoftirqd/022:11:300
11845992924,3cyclictest9-21ksoftirqd/022:00:110
11845992924,3cyclictest9-21ksoftirqd/019:46:040
11845992924,3cyclictest9-21ksoftirqd/000:30:010
11845992923,4cyclictest9-21ksoftirqd/023:27:400
11845992923,4cyclictest9-21ksoftirqd/023:27:390
11845992923,4cyclictest9-21ksoftirqd/022:34:410
11848992823,3cyclictest41-21ksoftirqd/321:40:033
11847992824,2cyclictest33-21ksoftirqd/220:40:002
11847992823,3cyclictest33-21ksoftirqd/221:32:162
11847992823,3cyclictest33-21ksoftirqd/219:24:312
11847992823,3cyclictest33-21ksoftirqd/219:13:192
11847992823,3cyclictest33-21ksoftirqd/200:01:162
11847992822,4cyclictest33-21ksoftirqd/223:47:322
11846992823,3cyclictest25-21ksoftirqd/100:05:181
11846992822,4cyclictest25-21ksoftirqd/122:49:091
11846992822,4cyclictest25-21ksoftirqd/121:16:111
11846992822,4cyclictest25-21ksoftirqd/120:44:501
11845992824,3cyclictest9-21ksoftirqd/022:23:510
11845992823,3cyclictest9-21ksoftirqd/021:40:450
11845992823,3cyclictest9-21ksoftirqd/020:33:220
11845992823,3cyclictest9-21ksoftirqd/020:21:380
139391270,0ptp4l401ktimersoftd/322:12:463
11848992723,3cyclictest41-21ksoftirqd/321:10:013
11848992722,3cyclictest41-21ksoftirqd/319:32:143
11847992723,2cyclictest33-21ksoftirqd/219:30:172
11847992722,3cyclictest33-21ksoftirqd/223:00:022
11846992722,3cyclictest25-21ksoftirqd/123:16:531
11846992722,3cyclictest25-21ksoftirqd/121:27:321
11845992722,3cyclictest9-21ksoftirqd/020:44:550
11845992721,4cyclictest9-21ksoftirqd/023:14:430
11845992721,4cyclictest9-21ksoftirqd/021:55:050
11848992621,3cyclictest41-21ksoftirqd/320:12:313
11847992620,4cyclictest33-21ksoftirqd/220:33:402
11846992621,3cyclictest25-21ksoftirqd/120:17:501
11846992620,4cyclictest25-21ksoftirqd/120:13:451
11845992622,3cyclictest9-21ksoftirqd/020:09:200
11845992622,3cyclictest9-21ksoftirqd/019:59:510
11845992621,3cyclictest9-21ksoftirqd/020:55:320
11845992621,3cyclictest9-21ksoftirqd/019:30:060
11845992620,4cyclictest9-21ksoftirqd/023:21:010
11847992520,3cyclictest33-21ksoftirqd/223:52:082
11846992520,3cyclictest25-21ksoftirqd/120:05:181
11845992419,3cyclictest9-21ksoftirqd/022:15:100
11845992419,3cyclictest9-21ksoftirqd/021:37:200
57898230,2rtkit-daemon0-21swapper/000:02:260
11847992318,3cyclictest33-21ksoftirqd/219:51:552
11845992318,3cyclictest9-21ksoftirqd/000:24:120
11846992217,3cyclictest25-21ksoftirqd/122:25:151
11846992217,3cyclictest25-21ksoftirqd/122:25:151
11845992218,3cyclictest9-21ksoftirqd/021:15:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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