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2025-12-15 - 00:54
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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 rackdslot2.osadl.org (updated Sun Dec 14, 2025 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1289222610,16sleep10-21swapper/107:05:291
139591234172,50phc2sys0-21swapper/307:08:113
136402228196,22sleep20-21swapper/207:06:272
136802214181,22sleep00-21swapper/007:06:580
2774021620,1sleep10-21swapper/107:35:381
139291760,1ptp4l391rcuc/307:50:343
1421799658,17cyclictest9910-21idleruntime11:30:303
1395915845,7phc2sys0-21swapper/307:10:023
1421799528,14cyclictest2548-21diskstats11:15:283
139291520,1ptp4l391rcuc/310:16:073
71392500,2sleep00-21swapper/012:30:390
1421799487,8cyclictest26272-21ps10:55:373
1421799468,7cyclictest20308-21apt10:45:273
14216994641,3cyclictest3211-21cron07:54:592
14216994415,27cyclictest21050-21kworker/2:007:30:362
14215994438,3cyclictest25-21ksoftirqd/111:40:001
139291440,1ptp4l1224-21ls11:10:383
139291430,0ptp4l401ktimersoftd/310:05:033
14217994233,5cyclictest41-21ksoftirqd/309:55:253
1421799418,7cyclictest13470-21users11:35:403
1421799417,7cyclictest7568-21hddtemp_smartct09:10:283
14216994111,17cyclictest321ktimersoftd/209:35:332
14215994135,3cyclictest25-21ksoftirqd/107:44:591
1421799407,8cyclictest10972-21df_inode10:25:283
14216994010,28cyclictest9321-21kworker/2:211:48:452
14215994035,3cyclictest25-21ksoftirqd/109:00:001
135191400,3getstats401ktimersoftd/308:49:203
14215993935,2cyclictest25-21ksoftirqd/111:25:001
14215993934,3cyclictest25-21ksoftirqd/109:05:001
14215993932,4cyclictest25-21ksoftirqd/108:43:591
14217993834,3cyclictest41-21ksoftirqd/312:30:433
14217993832,4cyclictest41-21ksoftirqd/309:22:043
14216993832,4cyclictest33-21ksoftirqd/208:28:232
14215993832,3cyclictest25-21ksoftirqd/107:50:261
14215993827,9cyclictest25-21ksoftirqd/110:50:411
1421499381,35cyclictest21793-21fschecks_count07:25:310
1421799377,14cyclictest28704-21/usr/sbin/munin07:40:293
1421799377,12cyclictest26440-21diskstats09:50:283
14217993731,4cyclictest41-21ksoftirqd/309:39:003
14216993732,3cyclictest33-21ksoftirqd/210:15:202
14216993732,3cyclictest33-21ksoftirqd/209:23:392
14216993730,4cyclictest33-21ksoftirqd/209:25:242
14215993732,3cyclictest25-21ksoftirqd/110:40:301
14215993732,3cyclictest25-21ksoftirqd/110:35:001
14215993732,3cyclictest25-21ksoftirqd/110:05:311
14215993732,3cyclictest25-21ksoftirqd/108:50:001
14215993732,3cyclictest25-21ksoftirqd/107:34:591
14215993731,4cyclictest25-21ksoftirqd/109:47:211
14215993727,7cyclictest25-21ksoftirqd/107:20:331
1421599370,2cyclictest121rcu_preempt07:15:271
14214993732,3cyclictest9-21ksoftirqd/010:50:250
14214993731,3cyclictest9-21ksoftirqd/009:40:000
14217993631,3cyclictest41-21ksoftirqd/312:24:073
14217993631,3cyclictest41-21ksoftirqd/308:53:073
14217993631,3cyclictest41-21ksoftirqd/308:25:243
14217993631,3cyclictest41-21ksoftirqd/308:11:443
14217993631,3cyclictest41-21ksoftirqd/307:35:233
14217993630,4cyclictest41-21ksoftirqd/311:41:563
14217993630,4cyclictest41-21ksoftirqd/308:41:523
14216993631,3cyclictest33-21ksoftirqd/208:45:002
14216993630,4cyclictest33-21ksoftirqd/211:51:412
14216993630,4cyclictest33-21ksoftirqd/210:55:212
14216993630,4cyclictest33-21ksoftirqd/210:32:472
14215993631,3cyclictest25-21ksoftirqd/111:40:331
14215993631,3cyclictest25-21ksoftirqd/110:55:331
14215993631,3cyclictest25-21ksoftirqd/110:00:271
14215993631,3cyclictest25-21ksoftirqd/108:50:331
14215993630,4cyclictest25-21ksoftirqd/108:16:511
14214993630,4cyclictest9-21ksoftirqd/009:33:440
14214993630,4cyclictest9-21ksoftirqd/008:04:540
14214993629,4cyclictest9-21ksoftirqd/007:30:200
1421799359,15cyclictest217-21systemd-journal12:04:553
14217993529,4cyclictest41-21ksoftirqd/312:19:143
14217993529,4cyclictest41-21ksoftirqd/311:52:553
14217993529,4cyclictest41-21ksoftirqd/309:43:463
1421699354,28cyclictest19583-21grep10:40:382
14216993529,4cyclictest33-21ksoftirqd/212:30:412
14216993529,4cyclictest33-21ksoftirqd/211:56:342
14216993529,4cyclictest33-21ksoftirqd/211:39:542
14216993529,4cyclictest33-21ksoftirqd/211:30:552
14216993529,4cyclictest33-21ksoftirqd/209:01:052
14215993532,2cyclictest25-21ksoftirqd/110:25:011
14215993530,3cyclictest25-21ksoftirqd/112:40:011
14215993530,3cyclictest25-21ksoftirqd/112:40:011
14215993530,3cyclictest25-21ksoftirqd/111:30:321
14215993530,3cyclictest25-21ksoftirqd/109:35:401
14215993530,3cyclictest25-21ksoftirqd/109:10:241
14215993530,3cyclictest25-21ksoftirqd/108:39:051
14215993529,4cyclictest25-21ksoftirqd/112:14:231
14215993529,4cyclictest25-21ksoftirqd/111:08:561
14215993529,4cyclictest25-21ksoftirqd/110:15:171
14215993529,4cyclictest25-21ksoftirqd/109:43:161
14214993530,3cyclictest9-21ksoftirqd/011:10:250
14214993529,4cyclictest9-21ksoftirqd/012:10:210
14214993529,4cyclictest9-21ksoftirqd/010:50:000
14214993529,4cyclictest9-21ksoftirqd/010:29:560
14214993529,4cyclictest9-21ksoftirqd/009:05:000
14214993529,4cyclictest9-21ksoftirqd/008:19:310
14214993528,4cyclictest9-21ksoftirqd/011:43:580
14214993528,4cyclictest9-21ksoftirqd/007:52:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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