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2026-04-18 - 11:29
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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 Sat Apr 18, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491232169,52phc2sys0-21swapper/319:06:123
247442206172,22sleep10-21swapper/119:07:501
248932203170,22sleep00-21swapper/019:09:450
247152202170,22sleep20-21swapper/219:07:262
2915121390,5sleep22520799cyclictest23:45:182
139391650,1ptp4l401ktimersoftd/320:02:383
125022580,2sleep00-21swapper/023:10:220
134391540,2getstats0-21swapper/323:30:113
134391520,1getstats17077-1kworker/3:1H21:55:113
139391510,1ptp4l401ktimersoftd/322:52:243
139391480,0ptp4l401ktimersoftd/321:49:273
139391480,0ptp4l401ktimersoftd/321:49:273
90502460,1sleep30-21swapper/319:40:253
57898430,9rtkit-daemon0-21swapper/320:48:453
25208994236,3cyclictest41-21ksoftirqd/323:20:003
139391420,0ptp4l401ktimersoftd/321:25:213
25208994129,10cyclictest41-21ksoftirqd/319:55:133
139391410,0ptp4l401ktimersoftd/323:00:243
25208994035,3cyclictest20035-21grep22:20:153
25208994035,2cyclictest41-21ksoftirqd/300:20:013
139391400,1ptp4l401ktimersoftd/322:37:413
139391400,0ptp4l401ktimersoftd/322:25:173
57898390,3rtkit-daemon24425-21apt-get20:15:122
25208993934,3cyclictest10392-21fschecks_count19:45:153
139391390,0ptp4l401ktimersoftd/322:40:223
134391390,2getstats0-21swapper/322:05:103
25207993832,4cyclictest33-21ksoftirqd/223:44:302
25207993820,17cyclictest33-21ksoftirqd/220:05:012
25206993831,3cyclictest207-21systemd-journal22:19:591
2520699380,2cyclictest0-21swapper/120:20:431
25208993732,3cyclictest41-21ksoftirqd/322:50:003
25207993730,4cyclictest33-21ksoftirqd/221:25:122
25206993732,3cyclictest25-21ksoftirqd/123:40:011
25206993731,4cyclictest25-21ksoftirqd/121:43:051
25206993731,4cyclictest25-21ksoftirqd/121:43:051
25206993731,4cyclictest25-21ksoftirqd/120:34:391
25206993731,4cyclictest25-21ksoftirqd/119:19:251
25205993731,4cyclictest9-21ksoftirqd/020:35:000
25208993632,2cyclictest41-21ksoftirqd/320:25:013
25208993631,3cyclictest41-21ksoftirqd/320:40:003
25208993631,3cyclictest41-21ksoftirqd/319:50:223
25208993630,4cyclictest41-21ksoftirqd/323:42:303
25208993630,4cyclictest41-21ksoftirqd/300:09:223
25208993629,5cyclictest41-21ksoftirqd/319:30:123
25208993624,3cyclictest41-21ksoftirqd/320:50:203
25207993631,3cyclictest33-21ksoftirqd/223:30:012
2520799360,33cyclictest12104-21cron19:49:592
25206993631,3cyclictest25-21ksoftirqd/120:29:291
25206993630,4cyclictest25-21ksoftirqd/120:05:141
25206993630,4cyclictest25-21ksoftirqd/100:05:551
25208993531,2cyclictest41-21ksoftirqd/323:30:013
25208993530,3cyclictest41-21ksoftirqd/323:20:093
25208993530,3cyclictest41-21ksoftirqd/320:05:103
25208993530,3cyclictest41-21ksoftirqd/319:30:003
25208993529,4cyclictest41-21ksoftirqd/300:14:073
25208993529,3cyclictest41-21ksoftirqd/321:08:253
2520899352,4cyclictest41-21ksoftirqd/320:35:013
25207993529,4cyclictest33-21ksoftirqd/221:36:292
25207993529,4cyclictest33-21ksoftirqd/221:17:402
25207993529,4cyclictest33-21ksoftirqd/221:13:072
25207993528,4cyclictest33-21ksoftirqd/220:32:462
25207993516,17cyclictest33-21ksoftirqd/222:25:002
25206993529,4cyclictest25-21ksoftirqd/123:55:561
25206993529,4cyclictest25-21ksoftirqd/123:34:221
25206993529,4cyclictest25-21ksoftirqd/122:04:161
25206993529,4cyclictest25-21ksoftirqd/121:58:151
25206993529,4cyclictest25-21ksoftirqd/121:00:331
25206993529,4cyclictest25-21ksoftirqd/119:34:201
25205993529,4cyclictest9-21ksoftirqd/020:58:440
25205993529,4cyclictest9-21ksoftirqd/020:58:440
25205993529,4cyclictest9-21ksoftirqd/020:28:110
25205993528,5cyclictest9-21ksoftirqd/019:52:290
25208993430,2cyclictest41-21ksoftirqd/322:10:153
25208993429,3cyclictest41-21ksoftirqd/322:55:193
25208993429,3cyclictest41-21ksoftirqd/322:15:123
25208993429,3cyclictest41-21ksoftirqd/321:10:183
25208993429,3cyclictest41-21ksoftirqd/321:00:013
25208993429,3cyclictest41-21ksoftirqd/321:00:013
25208993428,4cyclictest41-21ksoftirqd/321:44:203
25208993428,4cyclictest41-21ksoftirqd/321:44:203
25208993428,4cyclictest41-21ksoftirqd/321:24:073
25208993428,4cyclictest41-21ksoftirqd/319:23:593
25208993428,4cyclictest41-21ksoftirqd/300:36:143
25208993428,4cyclictest41-21ksoftirqd/300:30:123
25208993428,4cyclictest41-21ksoftirqd/300:25:433
2520899342,3cyclictest41-21ksoftirqd/323:10:253
25207993429,3cyclictest33-21ksoftirqd/221:00:122
25207993429,3cyclictest33-21ksoftirqd/219:20:342
25207993428,4cyclictest33-21ksoftirqd/223:19:022
25207993428,4cyclictest33-21ksoftirqd/220:36:312
25207993428,4cyclictest33-21ksoftirqd/220:09:322
25207993428,4cyclictest33-21ksoftirqd/219:32:382
25207993428,4cyclictest33-21ksoftirqd/219:10:262
25207993428,3cyclictest33-21ksoftirqd/222:45:092
25207993428,3cyclictest33-21ksoftirqd/200:35:112
25206993429,3cyclictest25-21ksoftirqd/121:32:241
25206993429,3cyclictest25-21ksoftirqd/100:18:291
25206993428,4cyclictest25-21ksoftirqd/119:58:481
25205993429,3cyclictest9-21ksoftirqd/023:56:390
25205993429,3cyclictest9-21ksoftirqd/020:00:150
25205993428,4cyclictest9-21ksoftirqd/021:45:460
25205993428,4cyclictest9-21ksoftirqd/021:45:460
25205993428,4cyclictest9-21ksoftirqd/021:11:520
25205993428,4cyclictest9-21ksoftirqd/020:09:180
25205993428,4cyclictest9-21ksoftirqd/000:28:280
25208993329,2cyclictest41-21ksoftirqd/323:45:183
25208993329,2cyclictest41-21ksoftirqd/322:00:123
25208993328,3cyclictest41-21ksoftirqd/323:05:143
25208993328,3cyclictest41-21ksoftirqd/319:15:193
25208993327,4cyclictest41-21ksoftirqd/319:35:123
25207993329,3cyclictest33-21ksoftirqd/219:19:592
25207993328,2cyclictest33-21ksoftirqd/223:15:002
25207993327,4cyclictest33-21ksoftirqd/223:30:382
25207993327,4cyclictest33-21ksoftirqd/222:56:322
25207993327,4cyclictest33-21ksoftirqd/222:10:112
25207993327,4cyclictest33-21ksoftirqd/222:09:542
25207993327,4cyclictest33-21ksoftirqd/221:52:172
25207993327,4cyclictest33-21ksoftirqd/200:33:322
25207993327,4cyclictest33-21ksoftirqd/200:20:002
25207993326,4cyclictest33-21ksoftirqd/221:21:522
25206993328,3cyclictest25-21ksoftirqd/100:29:591
25206993327,4cyclictest25-21ksoftirqd/119:45:571
25206993327,4cyclictest25-21ksoftirqd/119:39:221
25206993327,4cyclictest25-21ksoftirqd/119:23:301
25206993327,4cyclictest25-21ksoftirqd/100:31:011
25206993327,3cyclictest25-21ksoftirqd/123:00:041
25205993328,3cyclictest9-21ksoftirqd/021:02:490
25205993327,4cyclictest9-21ksoftirqd/023:44:030
25205993327,4cyclictest9-21ksoftirqd/021:54:280
25205993327,4cyclictest9-21ksoftirqd/021:31:250
25205993327,4cyclictest9-21ksoftirqd/020:53:030
25205993327,4cyclictest9-21ksoftirqd/020:42:590
25205993327,4cyclictest9-21ksoftirqd/019:14:500
25205993327,4cyclictest9-21ksoftirqd/000:37:270
25205993327,4cyclictest9-21ksoftirqd/000:15:490
25205993327,3cyclictest9-21ksoftirqd/000:24:190
25205993326,4cyclictest9-21ksoftirqd/020:25:000
25208993229,2cyclictest41-21ksoftirqd/320:25:223
25208993229,2cyclictest41-21ksoftirqd/320:10:183
25208993228,3cyclictest41-21ksoftirqd/321:00:193
25208993228,2cyclictest41-21ksoftirqd/323:35:183
25208993227,3cyclictest41-21ksoftirqd/300:22:393
25208993226,4cyclictest41-21ksoftirqd/321:37:543
2520899322,3cyclictest41-21ksoftirqd/300:00:193
2520899322,3cyclictest41-21ksoftirqd/300:00:193
2520899321,2cyclictest121rcu_preempt22:30:193
25207993229,2cyclictest33-21ksoftirqd/219:55:002
25207993227,3cyclictest33-21ksoftirqd/223:50:172
25207993227,3cyclictest33-21ksoftirqd/220:27:412
25207993226,4cyclictest33-21ksoftirqd/221:44:482
25207993226,4cyclictest33-21ksoftirqd/221:44:472
25207993226,4cyclictest33-21ksoftirqd/200:26:102
25206993226,4cyclictest25-21ksoftirqd/122:38:061
25206993226,4cyclictest25-21ksoftirqd/100:14:531
25205993227,3cyclictest9-21ksoftirqd/022:49:480
25205993227,3cyclictest9-21ksoftirqd/019:24:280
25205993226,4cyclictest9-21ksoftirqd/022:22:400
25205993226,4cyclictest9-21ksoftirqd/021:24:190
25205993226,4cyclictest9-21ksoftirqd/019:41:500
25208993126,3cyclictest41-21ksoftirqd/321:50:183
25208993125,4cyclictest41-21ksoftirqd/320:41:063
25208993125,4cyclictest41-21ksoftirqd/320:19:553
25208993125,3cyclictest41-21ksoftirqd/323:55:153
25207993126,3cyclictest33-21ksoftirqd/222:44:362
25207993126,3cyclictest33-21ksoftirqd/221:06:252
25207993126,3cyclictest33-21ksoftirqd/220:45:572
25207993126,3cyclictest33-21ksoftirqd/219:27:302
25207993125,4cyclictest33-21ksoftirqd/223:37:522
25207993125,4cyclictest33-21ksoftirqd/222:00:482
25207993125,4cyclictest33-21ksoftirqd/221:57:272
25207993125,4cyclictest33-21ksoftirqd/221:48:052
25207993125,4cyclictest33-21ksoftirqd/221:48:042
25207993122,4cyclictest33-21ksoftirqd/200:01:232
25207993122,4cyclictest33-21ksoftirqd/200:01:232
25207993121,9cyclictest33-21ksoftirqd/219:35:242
25206993126,3cyclictest25-21ksoftirqd/121:20:351
25206993126,3cyclictest25-21ksoftirqd/120:16:041
25206993126,3cyclictest25-21ksoftirqd/119:29:221
25206993125,4cyclictest25-21ksoftirqd/123:12:271
25206993125,4cyclictest25-21ksoftirqd/122:26:061
25206993125,4cyclictest25-21ksoftirqd/121:13:251
25206993125,4cyclictest25-21ksoftirqd/120:02:441
25206993125,4cyclictest25-21ksoftirqd/119:51:581
25206993124,5cyclictest25-21ksoftirqd/122:13:581
25205993126,3cyclictest9-21ksoftirqd/022:15:110
25205993126,3cyclictest9-21ksoftirqd/020:12:470
25205993126,3cyclictest9-21ksoftirqd/019:55:190
25205993126,3cyclictest9-21ksoftirqd/019:35:110
25205993126,3cyclictest9-21ksoftirqd/000:11:480
25205993125,4cyclictest9-21ksoftirqd/023:31:400
25205993125,4cyclictest9-21ksoftirqd/022:57:180
25205993125,4cyclictest9-21ksoftirqd/022:02:460
25208993025,3cyclictest41-21ksoftirqd/321:35:013
25208993025,3cyclictest41-21ksoftirqd/319:10:263
25207993026,3cyclictest33-21ksoftirqd/223:01:152
25207993026,2cyclictest33-21ksoftirqd/200:20:182
25207993025,3cyclictest33-21ksoftirqd/223:08:572
25207993025,3cyclictest33-21ksoftirqd/221:31:352
25207993024,4cyclictest33-21ksoftirqd/222:26:032
25207993024,4cyclictest33-21ksoftirqd/200:06:042
25206993025,3cyclictest25-21ksoftirqd/123:07:101
25206993025,3cyclictest25-21ksoftirqd/122:44:471
25206993024,4cyclictest25-21ksoftirqd/100:37:201
2520699300,28cyclictest0-21swapper/120:37:241
25205993025,3cyclictest9-21ksoftirqd/023:02:390
25205993025,3cyclictest9-21ksoftirqd/022:05:150
25205993025,3cyclictest9-21ksoftirqd/021:57:130
25205993025,3cyclictest9-21ksoftirqd/021:26:280
25205993025,3cyclictest9-21ksoftirqd/019:32:400
25205993024,4cyclictest9-21ksoftirqd/023:50:290
25205993024,4cyclictest9-21ksoftirqd/022:38:240
25205993024,4cyclictest9-21ksoftirqd/019:49:280
25205993024,4cyclictest9-21ksoftirqd/000:34:540
139391300,0ptp4l401ktimersoftd/323:50:223
25207992925,3cyclictest33-21ksoftirqd/220:54:552
25207992925,2cyclictest33-21ksoftirqd/222:50:192
25207992925,2cyclictest33-21ksoftirqd/220:20:152
25207992924,3cyclictest33-21ksoftirqd/219:40:502
25207992923,4cyclictest33-21ksoftirqd/222:36:022
25206992924,3cyclictest25-21ksoftirqd/122:22:561
25206992924,3cyclictest25-21ksoftirqd/121:39:051
25206992923,4cyclictest25-21ksoftirqd/122:33:201
25206992923,4cyclictest25-21ksoftirqd/121:54:331
2520699290,27cyclictest0-21swapper/123:50:231
25205992924,3cyclictest9-21ksoftirqd/023:19:090
25205992924,3cyclictest9-21ksoftirqd/020:47:050
25205992923,4cyclictest9-21ksoftirqd/023:29:110
25205992923,4cyclictest9-21ksoftirqd/021:17:260
25205992923,4cyclictest9-21ksoftirqd/000:06:220
25205992917,4cyclictest9-21ksoftirqd/020:35:570
994522822,2sleep09-21ksoftirqd/023:05:210
25207992823,3cyclictest33-21ksoftirqd/222:31:572
25207992823,3cyclictest33-21ksoftirqd/200:10:442
25206992823,3cyclictest25-21ksoftirqd/123:43:001
25206992823,3cyclictest25-21ksoftirqd/123:21:181
25206992823,3cyclictest25-21ksoftirqd/123:17:161
25206992823,3cyclictest25-21ksoftirqd/122:54:481
25206992823,3cyclictest25-21ksoftirqd/122:45:091
25206992822,4cyclictest25-21ksoftirqd/100:04:511
25206992822,4cyclictest25-21ksoftirqd/100:04:511
25205992823,3cyclictest9-21ksoftirqd/023:47:020
25205992823,3cyclictest9-21ksoftirqd/023:36:280
25205992823,3cyclictest9-21ksoftirqd/021:05:490
25205992823,3cyclictest9-21ksoftirqd/019:29:070
25205992822,4cyclictest9-21ksoftirqd/022:26:050
25208992723,3cyclictest41-21ksoftirqd/321:15:233
25207992722,3cyclictest33-21ksoftirqd/220:14:342
25207992722,3cyclictest33-21ksoftirqd/219:55:182
25206992722,3cyclictest25-21ksoftirqd/121:48:511
25206992722,3cyclictest25-21ksoftirqd/121:48:511
25206992722,3cyclictest25-21ksoftirqd/120:11:421
25206992722,3cyclictest25-21ksoftirqd/119:14:221
25206992721,4cyclictest25-21ksoftirqd/122:09:411
25206992721,4cyclictest25-21ksoftirqd/120:44:491
25206992712,14cyclictest0-21swapper/123:25:341
25205992722,3cyclictest9-21ksoftirqd/021:42:080
25205992722,3cyclictest9-21ksoftirqd/021:42:080
25205992721,4cyclictest9-21ksoftirqd/022:10:360
25205992721,4cyclictest9-21ksoftirqd/021:37:270
25207992621,3cyclictest33-21ksoftirqd/223:57:082
25207992621,3cyclictest33-21ksoftirqd/220:56:142
25207992621,3cyclictest33-21ksoftirqd/220:56:142
25207992620,4cyclictest33-21ksoftirqd/222:16:582
25207992615,10cyclictest33-21ksoftirqd/220:40:262
25206992621,3cyclictest25-21ksoftirqd/121:09:431
25206992621,3cyclictest25-21ksoftirqd/120:45:491
25206992620,4cyclictest25-21ksoftirqd/121:28:541
25206992620,4cyclictest25-21ksoftirqd/120:55:491
25206992620,4cyclictest25-21ksoftirqd/120:55:491
25205992621,3cyclictest9-21ksoftirqd/023:21:170
25207992520,3cyclictest33-21ksoftirqd/223:23:092
25205992520,3cyclictest9-21ksoftirqd/022:51:550
25205992520,3cyclictest9-21ksoftirqd/000:00:080
25205992520,3cyclictest9-21ksoftirqd/000:00:080
25205992519,4cyclictest9-21ksoftirqd/022:43:460
25205992519,4cyclictest9-21ksoftirqd/020:17:010
25206992419,3cyclictest25-21ksoftirqd/119:43:111
25206992419,3cyclictest25-21ksoftirqd/100:20:111
25206992418,4cyclictest25-21ksoftirqd/120:50:261
25205992419,3cyclictest9-21ksoftirqd/019:15:580
25205992418,4cyclictest9-21ksoftirqd/022:32:350
25206992216,4cyclictest25-21ksoftirqd/121:19:471
25206992116,3cyclictest25-21ksoftirqd/122:58:271
2520699201,3cyclictest28719-21diskstats23:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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