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2026-05-20 - 13:06
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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 Wed May 20, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
108062232168,22sleep10-21swapper/119:08:431
105652212151,50sleep20-21swapper/219:05:352
139491207173,23phc2sys0-21swapper/319:05:453
108052202169,22sleep00-21swapper/019:08:420
2855921360,5sleep01119899cyclictest19:45:170
53652720,1sleep00-21swapper/022:15:240
163402710,1sleep00-21swapper/019:20:130
270342660,2sleep20-21swapper/221:55:162
226262600,4sleep222630-21irqrtprio21:45:202
139391590,1ptp4l28520-21ls20:50:203
71252580,2sleep20-21swapper/221:15:002
1120199550,53cyclictest17921-21kworker/3:221:43:133
1120199510,16cyclictest7373-21cat21:15:153
1120199490,16cyclictest18580-21/usr/sbin/munin22:45:263
1120199480,10cyclictest28081-21apt-get23:05:113
1120199466,5cyclictest41-21ksoftirqd/322:14:143
1120199466,5cyclictest41-21ksoftirqd/322:14:143
1120199460,17cyclictest15974-21/usr/sbin/munin19:20:243
139391430,0ptp4l401ktimersoftd/300:01:543
1120199430,15cyclictest31344-21ssh00:15:263
139391420,0ptp4l401ktimersoftd/323:42:583
139391420,0ptp4l401ktimersoftd/323:34:593
139391420,0ptp4l401ktimersoftd/319:32:043
1120199421,8cyclictest26135-21fschecks_time19:40:153
1120199421,8cyclictest26135-21fschecks_time19:40:153
1120199421,18cyclictest1300-21snmpd22:44:593
139391410,0ptp4l401ktimersoftd/323:39:213
139391410,0ptp4l401ktimersoftd/319:15:243
1120199412,7cyclictest14932-21ls22:35:213
11200994135,3cyclictest33-21ksoftirqd/220:40:002
139391400,0ptp4l401ktimersoftd/323:00:243
1120199400,7cyclictest18616-21meminfo20:30:213
11199994035,3cyclictest25-21ksoftirqd/120:00:011
1120199391,16cyclictest7194-21/usr/sbin/munin00:35:213
1120199390,7cyclictest6221-21perl20:05:163
1120199390,14cyclictest31662-21/usr/sbin/munin22:05:223
1120199380,8cyclictest3297-21apt-get20:00:113
57898370,6rtkit-daemon0-21swapper/219:37:142
1120199372,4cyclictest41-21ksoftirqd/323:27:003
1120199371,15cyclictest23312-21/usr/sbin/munin22:55:263
11200993730,5cyclictest33-21ksoftirqd/221:37:392
11199993730,5cyclictest25-21ksoftirqd/121:10:341
11199993730,5cyclictest25-21ksoftirqd/100:37:411
11198993731,4cyclictest9-21ksoftirqd/021:06:480
11198993731,3cyclictest9-21ksoftirqd/019:15:010
11200993631,3cyclictest33-21ksoftirqd/200:01:202
11200993630,4cyclictest33-21ksoftirqd/223:17:002
11200993630,4cyclictest33-21ksoftirqd/219:43:542
11200993630,4cyclictest33-21ksoftirqd/219:43:542
11200993619,15cyclictest33-21ksoftirqd/219:13:302
11199993630,4cyclictest25-21ksoftirqd/122:59:021
11199993630,4cyclictest25-21ksoftirqd/120:52:011
11199993630,4cyclictest25-21ksoftirqd/120:29:301
11199993630,4cyclictest25-21ksoftirqd/120:13:051
11199993630,4cyclictest25-21ksoftirqd/100:01:151
11198993630,4cyclictest9-21ksoftirqd/021:30:010
11198993619,4cyclictest9-21ksoftirqd/020:06:260
11201993530,3cyclictest41-21ksoftirqd/321:25:123
11201993529,4cyclictest41-21ksoftirqd/320:47:453
11201993528,5cyclictest41-21ksoftirqd/322:29:033
1120199351,5cyclictest41-21ksoftirqd/319:57:233
1120199351,5cyclictest41-21ksoftirqd/319:49:323
1120199351,4cyclictest41-21ksoftirqd/321:31:293
1120199351,4cyclictest41-21ksoftirqd/320:29:123
1120199351,4cyclictest41-21ksoftirqd/300:30:243
1120199351,4cyclictest41-21ksoftirqd/300:30:243
11200993529,4cyclictest33-21ksoftirqd/220:51:422
11200993529,4cyclictest33-21ksoftirqd/219:50:482
11199993530,3cyclictest25-21ksoftirqd/122:16:171
11199993530,3cyclictest25-21ksoftirqd/119:25:181
11199993529,4cyclictest25-21ksoftirqd/123:51:331
11199993529,4cyclictest25-21ksoftirqd/122:05:571
11199993529,4cyclictest25-21ksoftirqd/120:38:411
11199993529,4cyclictest25-21ksoftirqd/120:08:321
11199993528,4cyclictest25-21ksoftirqd/121:20:151
11198993529,4cyclictest9-21ksoftirqd/022:45:290
11201993430,3cyclictest41-21ksoftirqd/321:00:123
11201993429,3cyclictest41-21ksoftirqd/321:55:583
11201993428,4cyclictest41-21ksoftirqd/319:39:133
11201993428,4cyclictest41-21ksoftirqd/300:11:213
1120199341,5cyclictest41-21ksoftirqd/320:23:103
1120199341,5cyclictest41-21ksoftirqd/300:23:483
1120199341,4cyclictest41-21ksoftirqd/323:17:043
1120199341,4cyclictest41-21ksoftirqd/322:51:423
11200993430,3cyclictest33-21ksoftirqd/221:25:532
11200993428,4cyclictest33-21ksoftirqd/222:47:312
11200993428,4cyclictest33-21ksoftirqd/222:21:592
11200993428,4cyclictest33-21ksoftirqd/222:12:372
11200993428,4cyclictest33-21ksoftirqd/222:12:372
11200993428,4cyclictest33-21ksoftirqd/200:26:472
11200993428,4cyclictest33-21ksoftirqd/200:09:272
11200993427,5cyclictest33-21ksoftirqd/220:59:202
11200993427,4cyclictest33-21ksoftirqd/223:05:142
11199993429,3cyclictest25-21ksoftirqd/121:38:091
11199993428,4cyclictest25-21ksoftirqd/123:26:341
11199993428,4cyclictest25-21ksoftirqd/122:29:211
11199993428,4cyclictest25-21ksoftirqd/120:58:221
11199993428,4cyclictest25-21ksoftirqd/120:20:561
11199993428,4cyclictest25-21ksoftirqd/100:23:501
11199993427,5cyclictest25-21ksoftirqd/121:54:031
11198993428,4cyclictest9-21ksoftirqd/023:33:430
11198993428,4cyclictest9-21ksoftirqd/023:19:030
11198993428,4cyclictest9-21ksoftirqd/022:53:100
11198993427,5cyclictest9-21ksoftirqd/021:44:190
1120199334,7cyclictest41-21ksoftirqd/300:08:063
11201993327,4cyclictest41-21ksoftirqd/321:21:073
11200993328,3cyclictest33-21ksoftirqd/219:16:402
11200993327,4cyclictest33-21ksoftirqd/223:44:082
11200993327,4cyclictest33-21ksoftirqd/222:04:392
11200993327,4cyclictest33-21ksoftirqd/221:21:292
11200993327,4cyclictest33-21ksoftirqd/220:00:062
11200993327,4cyclictest33-21ksoftirqd/219:33:272
11200993327,4cyclictest33-21ksoftirqd/219:23:402
11200993327,4cyclictest33-21ksoftirqd/200:22:022
11199993328,3cyclictest25-21ksoftirqd/121:15:591
11199993328,3cyclictest25-21ksoftirqd/100:25:461
11199993327,4cyclictest25-21ksoftirqd/122:53:121
11199993327,4cyclictest25-21ksoftirqd/122:35:341
11199993327,4cyclictest25-21ksoftirqd/121:47:411
11199993327,4cyclictest25-21ksoftirqd/120:18:111
11199993327,4cyclictest25-21ksoftirqd/119:32:221
11199993327,3cyclictest25-21ksoftirqd/123:30:541
11198993328,3cyclictest9-21ksoftirqd/019:33:010
11198993327,4cyclictest9-21ksoftirqd/023:40:050
11198993327,4cyclictest9-21ksoftirqd/023:28:250
11198993327,4cyclictest9-21ksoftirqd/023:08:520
11198993327,4cyclictest9-21ksoftirqd/020:17:090
11198993327,4cyclictest9-21ksoftirqd/019:59:360
11198993327,4cyclictest9-21ksoftirqd/019:50:420
11198993327,4cyclictest9-21ksoftirqd/019:37:420
11198993327,3cyclictest9-21ksoftirqd/023:13:130
11198993327,3cyclictest9-21ksoftirqd/020:40:120
11201993226,4cyclictest41-21ksoftirqd/322:17:323
11201993226,4cyclictest41-21ksoftirqd/321:38:443
11201993226,4cyclictest41-21ksoftirqd/319:54:023
11201993226,4cyclictest41-21ksoftirqd/319:12:263
1120199322,5cyclictest41-21ksoftirqd/323:55:033
11200993227,3cyclictest33-21ksoftirqd/200:30:202
11200993227,3cyclictest33-21ksoftirqd/200:30:202
11200993226,4cyclictest33-21ksoftirqd/223:35:492
11200993226,4cyclictest33-21ksoftirqd/223:34:452
11200993226,4cyclictest33-21ksoftirqd/222:42:302
11200993226,4cyclictest33-21ksoftirqd/222:32:392
11200993226,4cyclictest33-21ksoftirqd/222:28:342
11200993226,4cyclictest33-21ksoftirqd/221:00:562
11200993226,4cyclictest33-21ksoftirqd/220:13:222
11199993227,3cyclictest25-21ksoftirqd/122:25:011
11199993226,4cyclictest25-21ksoftirqd/123:37:171
11199993226,4cyclictest25-21ksoftirqd/123:17:021
11199993226,4cyclictest25-21ksoftirqd/123:14:571
11199993226,4cyclictest25-21ksoftirqd/123:05:481
11199993226,4cyclictest25-21ksoftirqd/120:46:111
11199993226,4cyclictest25-21ksoftirqd/120:00:101
11199993226,4cyclictest25-21ksoftirqd/119:52:271
11199993226,4cyclictest25-21ksoftirqd/119:10:591
11199993226,4cyclictest25-21ksoftirqd/100:16:321
11198993228,2cyclictest18015-21fschecks_count20:30:160
11198993227,3cyclictest9-21ksoftirqd/020:53:590
11198993226,4cyclictest9-21ksoftirqd/023:21:070
11198993226,4cyclictest9-21ksoftirqd/023:02:290
11198993226,4cyclictest9-21ksoftirqd/022:22:250
11198993226,4cyclictest9-21ksoftirqd/021:23:320
11198993226,4cyclictest9-21ksoftirqd/020:11:440
11198993226,4cyclictest9-21ksoftirqd/000:03:560
139391310,0ptp4l401ktimersoftd/320:37:473
11201993125,4cyclictest41-21ksoftirqd/300:26:013
1120199311,4cyclictest41-21ksoftirqd/323:12:393
1120199310,10cyclictest23695-21irqstats20:40:183
11200993127,3cyclictest33-21ksoftirqd/221:15:502
11200993126,3cyclictest33-21ksoftirqd/223:46:552
11200993125,4cyclictest33-21ksoftirqd/223:10:582
11200993125,4cyclictest33-21ksoftirqd/222:18:102
11200993125,4cyclictest33-21ksoftirqd/220:45:522
11200993125,4cyclictest33-21ksoftirqd/220:27:342
11200993125,4cyclictest33-21ksoftirqd/200:11:162
11200993125,3cyclictest33-21ksoftirqd/200:36:092
11199993126,3cyclictest25-21ksoftirqd/121:06:151
11199993125,4cyclictest25-21ksoftirqd/122:02:171
11199993125,4cyclictest25-21ksoftirqd/121:04:321
11199993125,4cyclictest25-21ksoftirqd/100:07:171
11199993117,5cyclictest25-21ksoftirqd/119:36:141
11198993126,3cyclictest9-21ksoftirqd/022:42:520
11198993126,3cyclictest9-21ksoftirqd/021:31:510
11198993125,4cyclictest9-21ksoftirqd/022:56:350
11198993125,4cyclictest9-21ksoftirqd/021:58:550
11198993125,4cyclictest9-21ksoftirqd/021:38:290
11198993125,4cyclictest9-21ksoftirqd/021:02:310
11198993125,4cyclictest9-21ksoftirqd/020:56:330
11198993125,4cyclictest9-21ksoftirqd/000:06:440
11198993125,3cyclictest9-21ksoftirqd/023:47:430
11198993124,4cyclictest9-21ksoftirqd/022:06:170
11198993124,4cyclictest9-21ksoftirqd/000:15:100
1120199302,4cyclictest41-21ksoftirqd/323:48:383
11201993024,4cyclictest41-21ksoftirqd/322:30:343
1120199301,7cyclictest41-21ksoftirqd/322:00:233
1120199301,5cyclictest41-21ksoftirqd/321:11:283
1120199301,4cyclictest41-21ksoftirqd/323:22:513
1120199301,4cyclictest41-21ksoftirqd/320:19:333
11200993025,3cyclictest33-21ksoftirqd/222:50:142
11200993025,3cyclictest33-21ksoftirqd/221:53:502
11200993025,3cyclictest33-21ksoftirqd/219:46:302
11200993025,3cyclictest33-21ksoftirqd/200:18:392
11200993024,4cyclictest33-21ksoftirqd/223:56:352
11200993024,4cyclictest33-21ksoftirqd/220:22:452
11200993024,4cyclictest33-21ksoftirqd/220:18:442
11200993024,3cyclictest33-21ksoftirqd/222:55:092
11199993025,3cyclictest25-21ksoftirqd/122:10:441
11199993025,3cyclictest25-21ksoftirqd/122:10:431
11199993025,3cyclictest25-21ksoftirqd/121:30:121
11199993025,3cyclictest25-21ksoftirqd/119:22:261
11199993024,4cyclictest25-21ksoftirqd/123:04:591
11199993024,4cyclictest25-21ksoftirqd/121:56:391
11198993026,3cyclictest9-21ksoftirqd/021:15:150
11198993025,3cyclictest9-21ksoftirqd/023:56:070
11198993025,3cyclictest9-21ksoftirqd/023:50:120
11198993025,3cyclictest9-21ksoftirqd/019:18:290
11198993024,4cyclictest9-21ksoftirqd/022:32:330
11198993024,4cyclictest9-21ksoftirqd/022:10:390
11198993024,4cyclictest9-21ksoftirqd/022:10:390
11198993024,4cyclictest9-21ksoftirqd/021:54:010
11198993024,4cyclictest9-21ksoftirqd/021:48:350
11198993024,4cyclictest9-21ksoftirqd/021:13:060
11198993024,4cyclictest9-21ksoftirqd/020:45:220
11198993024,4cyclictest9-21ksoftirqd/019:43:400
11198993024,4cyclictest9-21ksoftirqd/019:43:400
11198993024,4cyclictest9-21ksoftirqd/019:29:230
11198993024,3cyclictest9-21ksoftirqd/020:01:240
11201992923,4cyclictest41-21ksoftirqd/323:50:313
1120199290,15cyclictest8475-21diskstats20:10:163
11200992924,3cyclictest33-21ksoftirqd/223:52:182
11200992924,3cyclictest33-21ksoftirqd/223:03:172
11200992924,3cyclictest33-21ksoftirqd/221:33:432
11200992923,4cyclictest33-21ksoftirqd/222:38:212
11200992923,4cyclictest33-21ksoftirqd/221:41:202
11200992923,4cyclictest33-21ksoftirqd/220:44:482
11200992922,5cyclictest33-21ksoftirqd/220:00:012
11199992924,3cyclictest25-21ksoftirqd/123:47:591
11199992923,4cyclictest25-21ksoftirqd/123:55:461
11199992923,4cyclictest25-21ksoftirqd/122:30:011
11199992923,4cyclictest25-21ksoftirqd/119:15:321
11198992923,4cyclictest9-21ksoftirqd/022:28:040
11198992923,4cyclictest9-21ksoftirqd/000:35:050
11198992923,4cyclictest9-21ksoftirqd/000:34:370
11198992923,4cyclictest9-21ksoftirqd/000:34:370
11201992823,3cyclictest41-21ksoftirqd/321:53:163
11201992823,3cyclictest41-21ksoftirqd/320:57:343
11201992822,4cyclictest41-21ksoftirqd/319:29:023
11200992823,3cyclictest33-21ksoftirqd/223:24:082
11200992823,3cyclictest33-21ksoftirqd/220:31:142
11200992823,3cyclictest33-21ksoftirqd/220:07:202
11200992822,4cyclictest33-21ksoftirqd/221:09:112
11199992823,3cyclictest25-21ksoftirqd/100:33:331
11199992823,3cyclictest25-21ksoftirqd/100:33:331
11199992822,4cyclictest25-21ksoftirqd/121:27:231
11199992822,4cyclictest25-21ksoftirqd/119:46:011
11198992823,3cyclictest9-21ksoftirqd/020:28:490
11198992822,4cyclictest9-21ksoftirqd/000:13:260
11198992822,3cyclictest9-21ksoftirqd/000:20:030
11200992722,3cyclictest33-21ksoftirqd/222:07:392
11200992722,3cyclictest33-21ksoftirqd/219:26:012
11199992723,3cyclictest25-21ksoftirqd/100:14:591
11199992721,4cyclictest25-21ksoftirqd/122:42:521
11199992721,4cyclictest25-21ksoftirqd/120:40:091
11198992721,4cyclictest9-21ksoftirqd/022:01:480
11198992721,3cyclictest9-21ksoftirqd/000:28:500
11201992621,3cyclictest41-21ksoftirqd/321:06:283
11200992621,3cyclictest33-21ksoftirqd/223:29:272
11199992621,3cyclictest25-21ksoftirqd/123:20:061
11199992620,4cyclictest25-21ksoftirqd/119:41:201
11199992620,4cyclictest25-21ksoftirqd/119:41:201
11198992621,3cyclictest9-21ksoftirqd/020:20:110
11198992620,4cyclictest9-21ksoftirqd/020:35:550
139391250,0ptp4l401ktimersoftd/321:45:143
11201992520,3cyclictest41-21ksoftirqd/322:20:583
11199992520,3cyclictest25-21ksoftirqd/122:48:311
11199992318,3cyclictest25-21ksoftirqd/121:40:551
11198992320,2cyclictest9-21ksoftirqd/023:35:190
11199992115,4cyclictest25-21ksoftirqd/120:34:181
11198992015,3cyclictest15953-21cron22:40:010
11199991813,3cyclictest12605-21sshd23:40:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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