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2026-05-15 - 15:04
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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 Fri May 15, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591212167,33phc2sys0-21swapper/319:06:453
34582206172,22sleep10-21swapper/119:06:091
34722200166,22sleep00-21swapper/019:06:210
34542200166,23sleep20-21swapper/219:06:072
405899680,30cyclictest31703-21cut23:20:181
405899660,24cyclictest8705-21appstreamcli23:40:011
405899630,21cyclictest27964-21mailstats19:55:241
405899620,22cyclictest8994-21latency_hist19:20:011
138491610,1ptp4l401ktimersoftd/319:25:293
114382600,2sleep00-21swapper/023:45:140
138491590,9ptp4l0-21swapper/321:15:453
138491590,1ptp4l391rcuc/323:40:263
39102550,2sleep10-21swapper/122:25:111
138491550,1ptp4l401ktimersoftd/300:11:493
405899540,22cyclictest3241-21timerwakeupswit20:10:241
138491540,1ptp4l401ktimersoftd/300:20:463
134991540,1getstats0-21swapper/322:55:333
123932540,1sleep10-21swapper/121:35:211
92922530,2sleep10-21swapper/122:35:191
278452520,2sleep00-21swapper/019:55:220
4059995117,6cyclictest33-21ksoftirqd/223:40:282
4059995117,6cyclictest33-21ksoftirqd/223:05:272
4059995115,5cyclictest33-21ksoftirqd/223:35:252
4059995021,7cyclictest33-21ksoftirqd/200:15:002
4059994917,4cyclictest33-21ksoftirqd/222:10:002
4059994821,3cyclictest33-21ksoftirqd/200:20:232
4059994816,6cyclictest33-21ksoftirqd/219:55:212
4057994811,28cyclictest25658-21seq00:11:250
211742480,1sleep00-21swapper/000:05:150
4059994740,4cyclictest13529-21cron21:39:592
4059994725,3cyclictest33-21ksoftirqd/219:20:242
4059994721,7cyclictest33-21ksoftirqd/221:25:012
4059994718,10cyclictest33-21ksoftirqd/223:20:132
4059994716,7cyclictest33-21ksoftirqd/220:30:002
4059994713,4cyclictest33-21ksoftirqd/219:15:012
4059994622,8cyclictest33-21ksoftirqd/200:05:212
4059994619,6cyclictest33-21ksoftirqd/223:10:182
4059994613,6cyclictest33-21ksoftirqd/220:40:252
4059994612,4cyclictest33-21ksoftirqd/219:50:262
4059994518,6cyclictest33-21ksoftirqd/222:20:152
4059994518,4cyclictest33-21ksoftirqd/223:35:002
4059994515,4cyclictest33-21ksoftirqd/223:00:172
405899450,29cyclictest3185-21gpgv23:30:001
405999448,10cyclictest33-21ksoftirqd/223:15:142
4059994438,3cyclictest33-21ksoftirqd/221:25:102
4059994416,7cyclictest33-21ksoftirqd/222:25:112
4059994414,7cyclictest33-21ksoftirqd/200:20:012
4059994412,6cyclictest33-21ksoftirqd/219:30:232
4059994410,6cyclictest33-21ksoftirqd/222:45:002
405999440,3cyclictest121rcu_preempt22:50:012
405999437,4cyclictest33-21ksoftirqd/220:20:232
4059994318,6cyclictest33-21ksoftirqd/222:50:192
4059994315,7cyclictest33-21ksoftirqd/220:30:172
138491430,0ptp4l401ktimersoftd/300:09:013
405999423,6cyclictest33-21ksoftirqd/222:35:142
4059994230,9cyclictest33-21ksoftirqd/221:00:182
4059994217,6cyclictest33-21ksoftirqd/222:35:002
4059994214,7cyclictest33-21ksoftirqd/220:50:242
4059994214,7cyclictest33-21ksoftirqd/219:20:002
138491420,0ptp4l401ktimersoftd/323:47:303
405999419,6cyclictest33-21ksoftirqd/221:45:002
405999415,6cyclictest33-21ksoftirqd/221:50:282
4059994117,6cyclictest33-21ksoftirqd/221:00:002
4059994114,4cyclictest33-21ksoftirqd/221:10:272
4059994113,6cyclictest33-21ksoftirqd/200:30:192
138491410,0ptp4l401ktimersoftd/321:30:353
138491410,0ptp4l401ktimersoftd/321:07:413
405999408,6cyclictest33-21ksoftirqd/222:55:232
405999404,6cyclictest33-21ksoftirqd/221:45:142
4059994012,7cyclictest33-21ksoftirqd/223:50:272
4059994012,7cyclictest33-21ksoftirqd/223:50:272
138491400,1ptp4l401ktimersoftd/320:34:523
405999397,5cyclictest33-21ksoftirqd/220:00:132
405999396,4cyclictest33-21ksoftirqd/222:15:132
4059993934,3cyclictest33-21ksoftirqd/220:10:012
4059993929,8cyclictest33-21ksoftirqd/222:00:172
4059993929,2cyclictest33-21ksoftirqd/200:25:142
4059993927,10cyclictest33-21ksoftirqd/219:25:222
4059993913,7cyclictest33-21ksoftirqd/219:45:152
4059993913,4cyclictest33-21ksoftirqd/223:25:262
4059993911,4cyclictest33-21ksoftirqd/221:15:162
138491390,1ptp4l401ktimersoftd/320:14:533
405999388,4cyclictest33-21ksoftirqd/220:35:262
405999385,7cyclictest33-21ksoftirqd/220:10:182
4059993833,3cyclictest33-21ksoftirqd/219:45:002
4059993833,3cyclictest33-21ksoftirqd/200:00:002
4059993832,3cyclictest33-21ksoftirqd/220:15:122
4059993832,3cyclictest33-21ksoftirqd/220:15:122
4059993831,4cyclictest33-21ksoftirqd/219:37:442
138491380,0ptp4l401ktimersoftd/300:34:063
134991380,7getstats406099cyclictest22:35:073
405999376,3cyclictest33-21ksoftirqd/222:10:192
405999375,4cyclictest33-21ksoftirqd/221:30:132
4059993732,3cyclictest33-21ksoftirqd/221:55:172
4059993732,3cyclictest33-21ksoftirqd/220:45:132
4059993731,3cyclictest33-21ksoftirqd/200:35:162
4058993730,4cyclictest25-21ksoftirqd/121:46:121
4057993731,4cyclictest9-21ksoftirqd/020:47:220
4057993731,4cyclictest9-21ksoftirqd/019:53:060
4057993710,24cyclictest10950-21dump-pmu-power23:45:000
138491370,0ptp4l391rcuc/300:27:373
4060993631,3cyclictest41-21ksoftirqd/319:32:533
4060993630,4cyclictest41-21ksoftirqd/323:16:523
4060993630,4cyclictest41-21ksoftirqd/322:28:303
4060993630,4cyclictest41-21ksoftirqd/320:37:423
405999368,7cyclictest33-21ksoftirqd/223:45:142
405999361,5cyclictest33-21ksoftirqd/221:05:122
405799369,23cyclictest21545-21expr20:50:120
405799368,25cyclictest5265-21wc22:25:240
4057993630,4cyclictest9-21ksoftirqd/023:27:360
4057993630,3cyclictest9-21ksoftirqd/022:40:000
4060993529,4cyclictest41-21ksoftirqd/323:35:573
4060993529,4cyclictest41-21ksoftirqd/320:25:353
4060993529,4cyclictest41-21ksoftirqd/320:01:593
4060993529,4cyclictest41-21ksoftirqd/319:55:023
4060993529,4cyclictest41-21ksoftirqd/319:24:293
4060993528,4cyclictest41-21ksoftirqd/320:43:433
4059993530,3cyclictest33-21ksoftirqd/200:00:102
4058993529,4cyclictest25-21ksoftirqd/119:11:101
405899351,23cyclictest0-21swapper/123:50:261
405899351,23cyclictest0-21swapper/123:50:261
405799359,22cyclictest32638-21strings20:05:230
4057993529,4cyclictest9-21ksoftirqd/022:10:380
4057993529,4cyclictest9-21ksoftirqd/021:45:100
4057993529,4cyclictest9-21ksoftirqd/021:10:000
4057993529,4cyclictest9-21ksoftirqd/019:45:440
4057993512,20cyclictest26835-21if_enp1s000:15:170
4057993511,21cyclictest24982-21cat23:05:260
4057993510,22cyclictest6574-21sed22:30:140
4057993510,22cyclictest3928-21ls23:30:140
405799350,4cyclictest8848-21latency_hist20:25:000
405799350,3cyclictest16186-21latency_hist20:40:010
4060993428,4cyclictest41-21ksoftirqd/323:55:313
4060993428,4cyclictest41-21ksoftirqd/323:29:283
4060993428,4cyclictest41-21ksoftirqd/322:19:033
4060993428,4cyclictest41-21ksoftirqd/322:01:503
4060993428,4cyclictest41-21ksoftirqd/321:58:373
4060993428,4cyclictest41-21ksoftirqd/321:26:563
4060993427,4cyclictest41-21ksoftirqd/321:11:523
4058993428,4cyclictest25-21ksoftirqd/122:34:581
4058993427,4cyclictest25-21ksoftirqd/120:40:481
4058993427,4cyclictest25-21ksoftirqd/100:33:041
4058993415,16cyclictest5035-21missed_timers00:35:241
405899340,18cyclictest0-21swapper/121:25:161
405899340,17cyclictest0-21swapper/122:00:181
405799348,23cyclictest12056-21irqrtprio21:35:190
4057993429,3cyclictest9-21ksoftirqd/020:35:000
4057993429,3cyclictest9-21ksoftirqd/020:01:480
4057993429,3cyclictest9-21ksoftirqd/000:35:130
4057993429,3cyclictest9-21ksoftirqd/000:20:110
4057993428,4cyclictest9-21ksoftirqd/022:47:400
4057993428,4cyclictest9-21ksoftirqd/021:27:220
4057993428,4cyclictest9-21ksoftirqd/019:24:170
405799342,26cyclictest0-21swapper/000:25:120
4057993412,19cyclictest10659-21sed20:25:230
4057993411,21cyclictest16863-21awk20:40:150
4057993411,20cyclictest7546-21cut19:15:180
4057993411,20cyclictest28223-21seq21:02:260
138491340,0ptp4l401ktimersoftd/320:20:143
4060993327,4cyclictest41-21ksoftirqd/323:11:593
4060993327,4cyclictest41-21ksoftirqd/321:47:543
4060993327,4cyclictest41-21ksoftirqd/321:24:033
4060993327,4cyclictest41-21ksoftirqd/320:52:503
4060993326,4cyclictest41-21ksoftirqd/320:18:013
4060993326,4cyclictest41-21ksoftirqd/320:18:003
4058993328,3cyclictest25-21ksoftirqd/123:04:551
4058993328,3cyclictest25-21ksoftirqd/121:24:571
4058993327,4cyclictest25-21ksoftirqd/122:43:331
4058993327,4cyclictest25-21ksoftirqd/121:19:481
4058993327,4cyclictest25-21ksoftirqd/120:48:391
405899330,16cyclictest0-21swapper/122:20:141
405799339,21cyclictest9564-21if_err_enp4s021:30:180
405799339,21cyclictest27271-21cat22:05:200
405799339,21cyclictest19468-21cat21:50:180
405799338,22cyclictest3925-21latency_hist20:15:010
4057993328,3cyclictest9-21ksoftirqd/019:25:580
4057993327,4cyclictest9-21ksoftirqd/023:23:150
4057993327,4cyclictest9-21ksoftirqd/023:13:280
4057993327,4cyclictest9-21ksoftirqd/023:01:370
4057993327,4cyclictest9-21ksoftirqd/020:59:530
405799330,4cyclictest20639-21/usr/sbin/munin19:40:250
405799330,3cyclictest29820-21python23:15:240
138491330,0ptp4l401ktimersoftd/320:55:213
138491330,0ptp4l401ktimersoftd/319:45:143
4060993227,3cyclictest41-21ksoftirqd/323:52:383
4060993227,3cyclictest41-21ksoftirqd/323:52:383
4060993227,3cyclictest41-21ksoftirqd/322:46:243
4060993226,4cyclictest41-21ksoftirqd/322:07:213
4060993226,4cyclictest41-21ksoftirqd/319:42:133
4060993226,4cyclictest41-21ksoftirqd/319:11:533
4060993226,3cyclictest41-21ksoftirqd/323:30:583
406099320,3cyclictest121rcu_preempt21:50:223
4058993227,3cyclictest25-21ksoftirqd/120:31:581
4058993227,3cyclictest25-21ksoftirqd/119:47:381
4058993226,4cyclictest25-21ksoftirqd/121:05:571
4058993226,4cyclictest25-21ksoftirqd/100:28:111
4058993226,4cyclictest25-21ksoftirqd/100:18:001
4058993225,5cyclictest25-21ksoftirqd/100:24:581
4058993225,4cyclictest25-21ksoftirqd/121:14:421
405899321,18cyclictest0-21swapper/122:50:191
4057993227,3cyclictest9-21ksoftirqd/023:52:030
4057993227,3cyclictest9-21ksoftirqd/023:52:030
4057993227,3cyclictest9-21ksoftirqd/023:36:590
4057993227,3cyclictest9-21ksoftirqd/021:22:040
4057993227,3cyclictest9-21ksoftirqd/021:12:130
4057993227,3cyclictest9-21ksoftirqd/000:34:400
4057993226,4cyclictest9-21ksoftirqd/022:00:510
405799322,24cyclictest0-21swapper/019:35:110
4057993212,17cyclictest17327-21needreboot23:55:230
405799320,5cyclictest20860-21apt00:05:000
4060993126,3cyclictest41-21ksoftirqd/319:52:503
4060993125,4cyclictest41-21ksoftirqd/322:41:393
4060993125,4cyclictest41-21ksoftirqd/300:18:303
4060993124,4cyclictest41-21ksoftirqd/323:08:173
4058993126,3cyclictest25-21ksoftirqd/122:59:441
4058993125,4cyclictest25-21ksoftirqd/122:16:401
4058993125,4cyclictest25-21ksoftirqd/119:27:481
4058993116,12cyclictest27503-21phc2sys21:00:231
405799319,20cyclictest5839-21users20:15:270
405799319,20cyclictest5839-21users20:15:260
405799318,20cyclictest3181-21seq21:16:350
405799318,20cyclictest18102-21seq22:53:300
405799315,3cyclictest6004-21seq19:11:260
4057993127,3cyclictest9-21ksoftirqd/022:42:380
4057993126,3cyclictest9-21ksoftirqd/021:57:230
138491310,0ptp4l401ktimersoftd/321:35:283
4060993025,3cyclictest41-21ksoftirqd/322:32:283
4060993025,3cyclictest41-21ksoftirqd/300:40:003
4060993023,4cyclictest41-21ksoftirqd/321:00:333
4058993025,3cyclictest25-21ksoftirqd/119:33:571
4058993024,4cyclictest25-21ksoftirqd/100:07:531
4058993023,4cyclictest25-21ksoftirqd/119:41:231
4058993011,16cyclictest6208-21cpuspeed_turbos23:35:141
4058993011,16cyclictest30520-21grep20:00:231
405799303,4cyclictest31965-21sed22:15:180
405799302,4cyclictest0-21swapper/019:30:100
405799302,3cyclictest0-21swapper/021:40:110
405799300,4cyclictest1176-21ls22:20:110
138491300,0ptp4l401ktimersoftd/322:12:573
138491300,0ptp4l401ktimersoftd/319:35:123
4060992924,3cyclictest41-21ksoftirqd/319:15:563
4058992923,4cyclictest25-21ksoftirqd/123:17:021
4058992923,4cyclictest25-21ksoftirqd/123:09:361
4058992923,4cyclictest25-21ksoftirqd/120:08:511
4058992923,4cyclictest25-21ksoftirqd/119:22:031
4058992913,14cyclictest1303-21runrttasks21:44:151
4058992912,14cyclictest26130-21ls21:00:011
405799291,4cyclictest20139-21cat22:55:260
138491290,0ptp4l401ktimersoftd/323:20:423
138491290,0ptp4l401ktimersoftd/320:09:293
4060992823,3cyclictest41-21ksoftirqd/322:50:113
405899289,16cyclictest22886-21date20:50:251
4058992823,3cyclictest25-21ksoftirqd/122:11:111
4058992823,3cyclictest25-21ksoftirqd/100:03:231
4058992822,4cyclictest25-21ksoftirqd/121:59:471
4058992813,12cyclictest7797-21pluginstate20:20:221
405899281,21cyclictest3582-21apt-get23:30:131
4058992811,14cyclictest27296-21cat22:05:201
405899280,24cyclictest14231-21grep20:35:141
4060992722,3cyclictest41-21ksoftirqd/322:22:273
4060992722,3cyclictest41-21ksoftirqd/321:42:323
4058992722,3cyclictest25-21ksoftirqd/120:17:551
4058992722,3cyclictest25-21ksoftirqd/120:17:541
4058992721,4cyclictest25-21ksoftirqd/121:52:131
4058992721,4cyclictest25-21ksoftirqd/119:37:581
405899270,24cyclictest25649-21chrt00:11:181
405899270,24cyclictest14619-21cat22:45:221
405899270,23cyclictest26388-21latency_hist19:55:011
405899270,23cyclictest12660-21awk23:45:241
4060992620,3cyclictest41-21ksoftirqd/323:01:043
405899269,14cyclictest9035-21cpuspeed_turbos21:30:131
405899260,23cyclictest26362-21fschecks_count23:10:181
405899251,21cyclictest9679-21irqrtprio20:25:171
405899250,22cyclictest16424-21ls23:55:141
138491240,0ptp4l401ktimersoftd/320:45:033
138491240,0ptp4l401ktimersoftd/300:03:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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