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2026-08-17 - 20:27
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Mon Aug 17, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491230164,22phc2sys0-21swapper/307:06:223
313392205172,22sleep00-21swapper/007:08:510
313472204171,22sleep10-21swapper/107:08:561
312802204170,23sleep20-21swapper/207:08:042
2373421360,6sleep33173499cyclictest11:20:253
3143928262,11sleep20-21swapper/207:10:012
139391710,1ptp4l401ktimersoftd/308:50:223
139391700,1ptp4l401ktimersoftd/310:24:583
139391640,1ptp4l401ktimersoftd/312:21:053
139391570,1ptp4l401ktimersoftd/307:18:223
139391560,1ptp4l401ktimersoftd/312:38:383
141842550,2sleep10-21swapper/109:55:191
31732995414,3cyclictest25-21ksoftirqd/111:12:021
31732995414,3cyclictest25-21ksoftirqd/111:12:021
31732995414,3cyclictest25-21ksoftirqd/109:20:431
31732995414,3cyclictest25-21ksoftirqd/109:20:431
91182530,3sleep23173399cyclictest09:45:132
3173299533,15cyclictest10887-21cron12:05:001
3173299527,7cyclictest23628-21/usr/sbin/munin09:05:241
31732995214,6cyclictest25-21ksoftirqd/108:45:441
31732995211,5cyclictest25-21ksoftirqd/111:39:311
3173299513,18cyclictest11780-21threads08:40:271
31732995110,5cyclictest25-21ksoftirqd/110:37:221
31732995013,3cyclictest25-21ksoftirqd/107:24:581
31732995012,3cyclictest25-21ksoftirqd/108:18:461
31732995011,5cyclictest25-21ksoftirqd/112:39:251
31732995011,5cyclictest25-21ksoftirqd/111:27:081
31732995011,5cyclictest25-21ksoftirqd/108:22:591
31732995011,5cyclictest25-21ksoftirqd/108:22:591
31732995010,5cyclictest25-21ksoftirqd/112:16:391
31732995010,5cyclictest25-21ksoftirqd/110:12:391
31732994920,9cyclictest25-21ksoftirqd/112:07:321
31732994911,4cyclictest25-21ksoftirqd/108:37:361
3173299491,12cyclictest26006-21/usr/sbin/munin09:10:271
31732994910,5cyclictest25-21ksoftirqd/109:54:211
31732994910,5cyclictest25-21ksoftirqd/108:26:241
31732994910,5cyclictest25-21ksoftirqd/107:12:031
31732994814,3cyclictest25-21ksoftirqd/109:46:581
31732994810,5cyclictest25-21ksoftirqd/109:36:251
3173199487,5cyclictest9-21ksoftirqd/011:25:010
3173199487,5cyclictest9-21ksoftirqd/007:15:170
3173199486,5cyclictest9-21ksoftirqd/008:15:200
31731994844,3cyclictest111rcuc/008:05:150
31732994713,3cyclictest25-21ksoftirqd/109:04:261
31732994711,5cyclictest25-21ksoftirqd/107:48:171
3173199477,6cyclictest9-21ksoftirqd/012:05:230
31732994613,4cyclictest25-21ksoftirqd/107:32:441
31732994613,3cyclictest25-21ksoftirqd/110:09:411
3173199466,6cyclictest9-21ksoftirqd/010:40:140
31731994624,9cyclictest9-21ksoftirqd/008:35:250
31732994514,3cyclictest25-21ksoftirqd/112:22:471
31732994513,3cyclictest25-21ksoftirqd/111:58:081
3173199457,5cyclictest9-21ksoftirqd/012:28:190
31731994514,5cyclictest9-21ksoftirqd/012:20:520
139391450,0ptp4l401ktimersoftd/309:22:453
139391450,0ptp4l401ktimersoftd/309:22:453
3173299448,5cyclictest25-21ksoftirqd/111:30:531
3173299446,6cyclictest25-21ksoftirqd/107:35:271
3173299441,12cyclictest7650-21open_inodes09:40:261
31732994410,5cyclictest25-21ksoftirqd/108:10:121
3173199446,4cyclictest9-21ksoftirqd/009:20:250
3173199446,4cyclictest9-21ksoftirqd/009:20:250
3173199445,6cyclictest9-21ksoftirqd/012:30:150
3173199445,5cyclictest9-21ksoftirqd/010:45:170
139391440,0ptp4l401ktimersoftd/309:06:043
139391440,0ptp4l401ktimersoftd/308:17:183
31732994316,5cyclictest25-21ksoftirqd/108:00:231
3173199437,5cyclictest9-21ksoftirqd/011:53:240
3173199436,5cyclictest9-21ksoftirqd/011:30:260
3173199436,5cyclictest9-21ksoftirqd/008:00:180
3173199435,5cyclictest9-21ksoftirqd/008:55:250
3173299428,5cyclictest25-21ksoftirqd/109:32:551
3173299427,6cyclictest21281-21timerwakeupswit11:15:251
31732994212,3cyclictest25-21ksoftirqd/110:58:591
3173199425,5cyclictest9-21ksoftirqd/008:25:130
3173299419,4cyclictest25-21ksoftirqd/110:17:241
31732994120,8cyclictest25-21ksoftirqd/111:47:531
3173199415,5cyclictest9-21ksoftirqd/008:30:230
3173199412,6cyclictest9-21ksoftirqd/010:15:220
31731994125,8cyclictest9-21ksoftirqd/010:55:210
139391410,0ptp4l401ktimersoftd/311:50:313
139391410,0ptp4l401ktimersoftd/310:06:053
3173299409,2cyclictest25-21ksoftirqd/112:34:571
3173299407,5cyclictest25-21ksoftirqd/107:59:121
3173299401,11cyclictest14154-21chrt11:00:491
31731994017,6cyclictest9-21ksoftirqd/011:08:590
31731994010,5cyclictest9-21ksoftirqd/008:20:140
31731994010,5cyclictest9-21ksoftirqd/008:20:140
3173199400,2cyclictest121rcu_preempt11:25:170
139391400,0ptp4l401ktimersoftd/310:55:183
3173299399,5cyclictest25-21ksoftirqd/107:16:441
31732993910,8cyclictest25-21ksoftirqd/110:03:561
31732993833,3cyclictest31108-21irqrtprio10:30:211
31732993815,7cyclictest25-21ksoftirqd/111:23:541
31732993814,8cyclictest25-21ksoftirqd/111:52:221
3173199382,8cyclictest9-21ksoftirqd/009:09:500
31731993818,4cyclictest9-21ksoftirqd/008:40:070
31731993817,3cyclictest9-21ksoftirqd/011:16:450
31731993817,3cyclictest9-21ksoftirqd/009:40:330
3173199380,5cyclictest9-21ksoftirqd/008:50:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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