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2026-03-28 - 04:38
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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 rackdslot4.osadl.org (updated Sat Mar 28, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591225158,22phc2sys0-21swapper/319:09:123
243022202170,21sleep20-21swapper/219:07:592
242142202170,22sleep10-21swapper/119:06:511
243632199165,22sleep00-21swapper/019:08:460
1815921470,5sleep02494799cyclictest00:20:200
1815921470,5sleep02494799cyclictest00:20:200
237632700,2sleep32495099cyclictest20:10:233
138491690,1ptp4l391rcuc/322:05:423
41992620,2sleep00-21swapper/020:35:270
2495099616,15cyclictest32621-21cpuspeed_turbos19:25:133
2495099593,15cyclictest17733-21/usr/sbin/munin20:00:123
172142560,4sleep117215-21cpuspeed_turbos00:20:131
172142560,4sleep117215-21cpuspeed_turbos00:20:131
138491560,1ptp4l391rcuc/322:55:283
2495099554,11cyclictest22035-21date21:14:593
135191550,1getstats0-21swapper/322:48:543
2495099522,16cyclictest2555-21apt-get19:30:143
2495099504,9cyclictest20091-21cat23:20:183
2495099502,14cyclictest27452-21apt-get19:15:113
2495099501,11cyclictest0-21swapper/320:15:183
232752500,2sleep00-21swapper/000:30:190
50798460,9rtkit-daemon0-21swapper/122:18:401
2494999461,42cyclictest7108-21cron21:50:002
2494999450,42cyclictest14252-21sshd20:56:412
138491430,0ptp4l401ktimersoftd/323:49:273
138491430,0ptp4l401ktimersoftd/321:21:403
138491430,0ptp4l401ktimersoftd/320:30:123
2495099425,8cyclictest15513-21ps21:00:193
138491420,0ptp4l401ktimersoftd/321:57:473
138491420,0ptp4l401ktimersoftd/300:24:223
138491420,0ptp4l401ktimersoftd/300:24:213
2495099412,16cyclictest5631-21ps21:45:173
138491410,0ptp4l401ktimersoftd/321:30:173
138491410,0ptp4l401ktimersoftd/321:05:323
138491410,0ptp4l401ktimersoftd/319:50:223
138491410,0ptp4l401ktimersoftd/319:50:223
2495099403,7cyclictest28496-21meminfo20:20:213
2495099403,7cyclictest28496-21meminfo20:20:203
24949994035,3cyclictest33-21ksoftirqd/200:25:002
24949994035,3cyclictest33-21ksoftirqd/200:25:002
50798390,6rtkit-daemon0-21swapper/023:16:230
24950993934,3cyclictest7881-21fschecks_count20:45:173
24950993933,3cyclictest24367-21idleruntime-cro21:19:593
134991390,1getstats0-21swapper/319:12:083
50798380,5rtkit-daemon7046-21chrt21:49:131
24950993831,4cyclictest41-21ksoftirqd/300:30:003
24948993834,2cyclictest1303-21runrttasks23:06:231
138491380,0ptp4l401ktimersoftd/322:44:563
24949993732,3cyclictest33-21ksoftirqd/223:10:112
24949993732,3cyclictest33-21ksoftirqd/223:10:112
24949993732,3cyclictest33-21ksoftirqd/219:55:002
24949993732,3cyclictest33-21ksoftirqd/219:55:002
24948993734,2cyclictest25-21ksoftirqd/119:19:591
24948993732,3cyclictest25-21ksoftirqd/100:30:191
24948993732,3cyclictest25-21ksoftirqd/100:20:001
24948993731,4cyclictest25-21ksoftirqd/122:48:101
24948993731,3cyclictest25-21ksoftirqd/121:00:271
24950993630,4cyclictest41-21ksoftirqd/319:44:583
24950993630,4cyclictest41-21ksoftirqd/300:05:123
24949993632,2cyclictest33-21ksoftirqd/221:10:202
24949993631,2cyclictest33-21ksoftirqd/221:15:182
24949993630,4cyclictest33-21ksoftirqd/223:37:452
24949993630,4cyclictest33-21ksoftirqd/222:54:412
24949993630,4cyclictest33-21ksoftirqd/221:52:272
24949993630,4cyclictest33-21ksoftirqd/220:35:132
24948993631,3cyclictest25-21ksoftirqd/121:15:111
24948993630,4cyclictest25-21ksoftirqd/120:44:431
24948993630,4cyclictest25-21ksoftirqd/120:21:281
24948993630,4cyclictest25-21ksoftirqd/120:21:281
24948993630,4cyclictest25-21ksoftirqd/100:36:541
24948993630,3cyclictest25-21ksoftirqd/123:15:191
24948993630,3cyclictest25-21ksoftirqd/119:45:171
50798350,2rtkit-daemon0-21swapper/019:25:580
2495099352,13cyclictest6100-21irqrtprio19:35:193
2495099351,8cyclictest22633-21perl23:25:153
24949993530,3cyclictest33-21ksoftirqd/222:46:572
24949993530,3cyclictest33-21ksoftirqd/222:21:232
24949993530,3cyclictest33-21ksoftirqd/222:15:002
24949993530,3cyclictest33-21ksoftirqd/219:15:112
24949993529,4cyclictest33-21ksoftirqd/223:02:152
24949993529,4cyclictest33-21ksoftirqd/221:00:312
24949993529,4cyclictest33-21ksoftirqd/220:12:012
24949993529,4cyclictest33-21ksoftirqd/219:32:422
24949993528,5cyclictest33-21ksoftirqd/223:54:182
24948993530,3cyclictest25-21ksoftirqd/123:40:171
24948993530,3cyclictest25-21ksoftirqd/119:35:011
24948993529,4cyclictest25-21ksoftirqd/123:29:151
24948993529,4cyclictest25-21ksoftirqd/123:13:381
24948993529,4cyclictest25-21ksoftirqd/123:13:381
24948993529,4cyclictest25-21ksoftirqd/121:59:161
24948993529,4cyclictest25-21ksoftirqd/120:32:181
24948993528,4cyclictest25-21ksoftirqd/123:56:461
24947993530,3cyclictest9-21ksoftirqd/020:19:590
24947993529,4cyclictest9-21ksoftirqd/022:26:060
24947993529,4cyclictest9-21ksoftirqd/021:06:270
24947993529,4cyclictest9-21ksoftirqd/000:09:000
24947993529,4cyclictest9-21ksoftirqd/000:04:110
24947993528,4cyclictest9-21ksoftirqd/023:34:460
138491350,0ptp4l401ktimersoftd/321:25:023
50798340,2rtkit-daemon0-21swapper/022:43:250
50798340,2rtkit-daemon0-21swapper/019:24:460
24950993428,4cyclictest41-21ksoftirqd/323:51:343
24950993428,4cyclictest41-21ksoftirqd/323:05:463
24950993428,4cyclictest41-21ksoftirqd/322:24:033
24950993428,4cyclictest41-21ksoftirqd/322:15:423
24950993428,4cyclictest41-21ksoftirqd/322:14:503
24950993428,4cyclictest41-21ksoftirqd/319:21:373
24950993427,4cyclictest41-21ksoftirqd/322:30:113
24949993430,2cyclictest33-21ksoftirqd/200:20:002
24949993429,3cyclictest33-21ksoftirqd/221:25:112
24949993429,3cyclictest33-21ksoftirqd/200:35:582
24949993429,2cyclictest33-21ksoftirqd/200:35:012
24949993428,4cyclictest33-21ksoftirqd/222:34:112
24949993428,4cyclictest33-21ksoftirqd/220:03:242
24949993428,3cyclictest33-21ksoftirqd/221:35:182
24948993430,2cyclictest25-21ksoftirqd/121:40:011
24948993429,3cyclictest25-21ksoftirqd/123:30:191
24948993428,4cyclictest25-21ksoftirqd/122:31:341
24948993428,4cyclictest25-21ksoftirqd/121:07:451
24948993428,3cyclictest25-21ksoftirqd/100:05:011
24947993429,3cyclictest9-21ksoftirqd/023:11:240
24947993429,3cyclictest9-21ksoftirqd/023:11:240
24947993429,3cyclictest9-21ksoftirqd/020:49:590
24947993428,4cyclictest9-21ksoftirqd/023:46:180
24947993428,4cyclictest9-21ksoftirqd/021:57:020
24947993428,4cyclictest9-21ksoftirqd/019:47:170
24947993428,4cyclictest9-21ksoftirqd/019:33:480
24947993428,4cyclictest9-21ksoftirqd/019:12:390
24947993428,4cyclictest9-21ksoftirqd/000:27:260
24947993428,3cyclictest9-21ksoftirqd/021:33:470
24950993327,4cyclictest41-21ksoftirqd/323:57:013
24949993329,3cyclictest33-21ksoftirqd/222:05:142
24949993328,3cyclictest33-21ksoftirqd/223:30:552
24949993328,3cyclictest33-21ksoftirqd/220:44:592
24949993328,3cyclictest33-21ksoftirqd/220:30:132
24949993328,2cyclictest33-21ksoftirqd/221:20:172
24949993327,4cyclictest33-21ksoftirqd/223:27:342
24949993327,4cyclictest33-21ksoftirqd/222:28:412
24949993327,4cyclictest33-21ksoftirqd/220:48:482
24948993329,3cyclictest25-21ksoftirqd/119:20:181
24948993329,2cyclictest25-21ksoftirqd/122:05:181
24948993328,3cyclictest25-21ksoftirqd/121:44:591
24948993328,3cyclictest25-21ksoftirqd/121:00:001
24948993328,3cyclictest25-21ksoftirqd/120:28:581
24948993328,3cyclictest25-21ksoftirqd/120:05:051
24948993327,4cyclictest25-21ksoftirqd/122:02:131
24948993327,4cyclictest25-21ksoftirqd/121:31:121
24948993327,4cyclictest25-21ksoftirqd/121:22:531
24948993327,4cyclictest25-21ksoftirqd/119:50:191
24948993327,4cyclictest25-21ksoftirqd/119:50:191
24948993327,4cyclictest25-21ksoftirqd/119:37:021
24948993327,3cyclictest25-21ksoftirqd/100:05:191
24948993326,5cyclictest25-21ksoftirqd/122:59:221
24947993328,3cyclictest9-21ksoftirqd/022:01:580
24947993328,3cyclictest9-21ksoftirqd/020:05:110
24947993327,4cyclictest9-21ksoftirqd/023:53:370
24947993327,4cyclictest9-21ksoftirqd/022:51:500
24947993327,4cyclictest9-21ksoftirqd/020:55:090
24947993327,4cyclictest9-21ksoftirqd/020:41:160
24947993327,4cyclictest9-21ksoftirqd/019:57:350
24947993326,4cyclictest9-21ksoftirqd/022:36:210
24950993227,3cyclictest41-21ksoftirqd/322:00:123
24950993226,4cyclictest41-21ksoftirqd/320:41:393
24950993226,4cyclictest41-21ksoftirqd/319:46:403
24950993226,4cyclictest41-21ksoftirqd/300:35:123
24949993228,2cyclictest33-21ksoftirqd/220:20:142
24949993228,2cyclictest33-21ksoftirqd/220:20:132
24949993227,3cyclictest33-21ksoftirqd/223:00:002
24949993227,3cyclictest33-21ksoftirqd/220:25:142
24949993227,3cyclictest33-21ksoftirqd/219:30:002
24949993227,3cyclictest33-21ksoftirqd/200:05:202
24949993226,4cyclictest33-21ksoftirqd/223:42:192
24949993226,4cyclictest33-21ksoftirqd/223:15:312
24949993226,4cyclictest33-21ksoftirqd/223:05:322
24949993226,4cyclictest33-21ksoftirqd/220:52:062
24949993226,4cyclictest33-21ksoftirqd/220:52:062
24949993226,4cyclictest33-21ksoftirqd/219:12:452
24949993220,9cyclictest33-21ksoftirqd/200:00:202
24948993228,3cyclictest25-21ksoftirqd/122:20:181
24948993227,3cyclictest25-21ksoftirqd/123:21:031
24948993226,4cyclictest25-21ksoftirqd/122:43:281
24948993226,4cyclictest25-21ksoftirqd/122:10:351
24948993226,4cyclictest25-21ksoftirqd/121:29:031
24948993226,3cyclictest25-21ksoftirqd/120:04:591
24948993225,4cyclictest25-21ksoftirqd/119:11:481
24947993227,3cyclictest9-21ksoftirqd/021:37:330
24947993227,3cyclictest9-21ksoftirqd/020:13:530
24947993227,3cyclictest9-21ksoftirqd/020:04:540
24947993226,4cyclictest9-21ksoftirqd/021:26:060
24947993226,4cyclictest9-21ksoftirqd/020:52:560
24947993226,4cyclictest9-21ksoftirqd/020:52:560
24950993125,4cyclictest41-21ksoftirqd/323:33:143
24950993125,4cyclictest41-21ksoftirqd/321:50:033
24950993125,4cyclictest41-21ksoftirqd/321:43:293
24950993125,4cyclictest41-21ksoftirqd/320:50:013
24950993125,4cyclictest41-21ksoftirqd/320:50:013
24950993125,4cyclictest41-21ksoftirqd/320:09:463
24949993127,2cyclictest33-21ksoftirqd/222:15:112
24949993126,3cyclictest33-21ksoftirqd/223:50:012
24949993126,3cyclictest33-21ksoftirqd/221:42:342
24949993126,3cyclictest33-21ksoftirqd/220:09:032
24949993126,3cyclictest33-21ksoftirqd/219:40:112
24949993126,3cyclictest33-21ksoftirqd/200:10:122
24949993125,4cyclictest33-21ksoftirqd/222:04:302
24949993125,4cyclictest33-21ksoftirqd/221:05:452
24949993125,4cyclictest33-21ksoftirqd/219:56:532
24949993120,10cyclictest33-21ksoftirqd/223:55:232
24948993127,3cyclictest25-21ksoftirqd/120:50:131
24948993127,3cyclictest25-21ksoftirqd/120:50:121
24948993126,3cyclictest25-21ksoftirqd/123:50:131
24948993126,3cyclictest25-21ksoftirqd/123:35:141
24948993126,3cyclictest25-21ksoftirqd/123:05:011
24948993125,4cyclictest25-21ksoftirqd/119:43:521
24948993124,5cyclictest25-21ksoftirqd/122:29:011
24947993126,3cyclictest9-21ksoftirqd/023:25:090
24947993126,3cyclictest9-21ksoftirqd/021:42:310
24947993126,3cyclictest9-21ksoftirqd/020:31:540
24947993126,3cyclictest9-21ksoftirqd/019:40:470
24947993125,4cyclictest9-21ksoftirqd/022:16:450
24950993025,3cyclictest41-21ksoftirqd/320:25:023
24950993025,3cyclictest41-21ksoftirqd/300:18:463
24950993024,4cyclictest41-21ksoftirqd/322:35:323
24950993024,4cyclictest41-21ksoftirqd/300:10:523
24949993025,3cyclictest33-21ksoftirqd/221:30:192
24949993024,4cyclictest33-21ksoftirqd/223:21:122
24949993024,4cyclictest33-21ksoftirqd/221:57:122
24949993024,4cyclictest33-21ksoftirqd/200:26:362
24948993026,2cyclictest25-21ksoftirqd/120:40:001
24948993025,3cyclictest25-21ksoftirqd/122:50:161
24948993025,3cyclictest25-21ksoftirqd/120:15:541
24948993025,3cyclictest25-21ksoftirqd/120:12:111
24948993024,4cyclictest25-21ksoftirqd/123:45:511
24948993024,4cyclictest25-21ksoftirqd/120:45:391
2494899301,26cyclictest11706-21kworker/1:019:25:251
24947993025,3cyclictest9-21ksoftirqd/022:22:210
24947993025,3cyclictest9-21ksoftirqd/021:45:030
24947993025,3cyclictest9-21ksoftirqd/019:36:130
24947993025,3cyclictest9-21ksoftirqd/000:39:150
24947993024,4cyclictest9-21ksoftirqd/023:56:490
24950992924,3cyclictest41-21ksoftirqd/322:30:013
24950992923,4cyclictest41-21ksoftirqd/323:15:493
24950992923,3cyclictest41-21ksoftirqd/320:35:143
24949992924,3cyclictest33-21ksoftirqd/222:41:032
24949992924,2cyclictest33-21ksoftirqd/222:35:132
24949992923,4cyclictest33-21ksoftirqd/219:23:022
24948992924,3cyclictest25-21ksoftirqd/100:25:191
24948992924,3cyclictest25-21ksoftirqd/100:13:471
2494899291,2cyclictest121rcu_preempt19:59:201
24947992924,3cyclictest9-21ksoftirqd/023:05:420
24947992924,3cyclictest9-21ksoftirqd/020:24:190
24947992924,3cyclictest9-21ksoftirqd/020:24:190
24947992923,4cyclictest9-21ksoftirqd/023:40:480
24947992923,4cyclictest9-21ksoftirqd/023:22:430
24947992923,4cyclictest9-21ksoftirqd/022:47:220
24947992923,4cyclictest9-21ksoftirqd/021:21:530
24947992923,4cyclictest9-21ksoftirqd/021:11:160
24947992923,3cyclictest9-21ksoftirqd/023:36:090
138491290,0ptp4l401ktimersoftd/320:58:583
24950992823,3cyclictest41-21ksoftirqd/323:02:173
24950992822,4cyclictest41-21ksoftirqd/322:54:593
24950992822,4cyclictest41-21ksoftirqd/300:30:463
24950992822,4cyclictest41-21ksoftirqd/300:03:223
24949992824,3cyclictest33-21ksoftirqd/219:45:182
24948992823,3cyclictest25-21ksoftirqd/121:50:191
24948992823,3cyclictest25-21ksoftirqd/121:10:201
24947992823,3cyclictest9-21ksoftirqd/022:58:180
24947992823,3cyclictest9-21ksoftirqd/019:55:000
24947992823,3cyclictest9-21ksoftirqd/019:54:590
24947992822,4cyclictest9-21ksoftirqd/020:27:530
24947992822,4cyclictest9-21ksoftirqd/000:14:500
24948992721,3cyclictest25-21ksoftirqd/122:39:481
24947992722,3cyclictest9-21ksoftirqd/021:54:040
24947992721,4cyclictest9-21ksoftirqd/023:01:370
24947992721,4cyclictest9-21ksoftirqd/022:31:200
138491270,1ptp4l401ktimersoftd/323:10:133
138491270,1ptp4l401ktimersoftd/323:10:133
24950992622,2cyclictest1923-21dump-pmu-power21:40:003
24950992621,3cyclictest41-21ksoftirqd/323:37:543
24950992620,4cyclictest41-21ksoftirqd/323:41:193
24949992621,3cyclictest33-21ksoftirqd/220:16:472
24947992621,3cyclictest9-21ksoftirqd/021:18:360
24947992520,3cyclictest9-21ksoftirqd/022:11:430
24947992520,3cyclictest9-21ksoftirqd/019:15:360
24947992519,4cyclictest9-21ksoftirqd/021:00:380
50798240,8rtkit-daemon0-21swapper/022:06:100
24949992420,2cyclictest33-21ksoftirqd/219:40:012
24947992419,3cyclictest9-21ksoftirqd/000:18:300
138491230,0ptp4l401ktimersoftd/319:55:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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