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2026-05-26 - 01:34
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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 rackdslot4.osadl.org (updated Mon May 25, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591226161,53phc2sys0-21swapper/307:08:483
94992221161,48sleep10-21swapper/107:06:011
97432201166,23sleep00-21swapper/007:09:090
94702200167,22sleep20-21swapper/207:05:382
2346421420,6sleep01011199cyclictest09:45:220
301221280,1sleep10-21swapper/110:10:181
103732610,6sleep11011299cyclictest10:25:151
1385916039,12phc2sys0-21swapper/307:10:003
47622570,6sleep11011299cyclictest10:15:111
1011499534,10cyclictest2315-21gnome-shell12:05:243
10112995211,7cyclictest25-21ksoftirqd/111:16:321
1011499512,17cyclictest11553-21mailstats08:15:263
10112995012,7cyclictest25-21ksoftirqd/112:09:311
10112995012,6cyclictest25-21ksoftirqd/112:26:471
10112994912,6cyclictest25-21ksoftirqd/108:19:521
10112994911,7cyclictest25-21ksoftirqd/112:22:061
10112994911,7cyclictest25-21ksoftirqd/109:56:241
10112994810,9cyclictest25-21ksoftirqd/110:08:491
138491470,2ptp4l0-21swapper/311:37:173
1011499471,17cyclictest0-21swapper/310:50:203
1011299479,9cyclictest25-21ksoftirqd/108:13:191
10112994715,4cyclictest25-21ksoftirqd/110:45:001
10112994611,10cyclictest25-21ksoftirqd/110:20:181
138491450,0ptp4l401ktimersoftd/311:01:373
1011299459,4cyclictest25-21ksoftirqd/108:45:211
10112994535,3cyclictest25-21ksoftirqd/111:45:151
10112994526,7cyclictest25-21ksoftirqd/108:55:151
10112994510,6cyclictest25-21ksoftirqd/107:25:001
10112994510,6cyclictest25-21ksoftirqd/107:25:001
1011299449,3cyclictest25-21ksoftirqd/109:20:241
1011299448,8cyclictest25-21ksoftirqd/108:50:171
10112994439,3cyclictest25-21ksoftirqd/111:05:001
10111994413,3cyclictest9-21ksoftirqd/009:25:000
1011299438,8cyclictest25-21ksoftirqd/109:30:231
1011299438,4cyclictest25-21ksoftirqd/112:10:231
1011299437,4cyclictest25-21ksoftirqd/111:10:221
1011299436,8cyclictest25-21ksoftirqd/107:10:171
10112994310,4cyclictest25-21ksoftirqd/107:35:221
10111994314,4cyclictest9-21ksoftirqd/007:25:140
10111994314,4cyclictest9-21ksoftirqd/007:25:130
138491420,0ptp4l401ktimersoftd/309:20:203
1011299429,4cyclictest25-21ksoftirqd/107:45:131
1011299421,5cyclictest25-21ksoftirqd/108:05:251
1011299421,3cyclictest121rcu_preempt10:50:001
1011299421,3cyclictest121rcu_preempt08:00:111
10112994211,9cyclictest25-21ksoftirqd/111:55:141
138491410,0ptp4l401ktimersoftd/311:19:303
138491410,0ptp4l401ktimersoftd/309:34:393
1011299419,7cyclictest25-21ksoftirqd/109:15:291
1011299417,7cyclictest25-21ksoftirqd/108:30:131
1011299414,5cyclictest121rcu_preempt09:40:221
1011299413,2cyclictest121rcu_preempt07:59:591
10112994113,9cyclictest25-21ksoftirqd/111:35:481
1011499403,7cyclictest30142-21diskstats10:00:153
1011299406,8cyclictest25-21ksoftirqd/109:45:241
1011299404,3cyclictest4534-21cron09:10:001
10112994036,2cyclictest25-21ksoftirqd/107:25:011
10112994036,2cyclictest25-21ksoftirqd/107:25:011
10112994035,3cyclictest25-21ksoftirqd/111:10:011
10112994035,3cyclictest25-21ksoftirqd/107:30:121
10112994034,3cyclictest25-21ksoftirqd/112:20:001
10112994034,3cyclictest25-21ksoftirqd/107:40:241
1011299400,2cyclictest121rcu_preempt09:00:141
10111994036,2cyclictest9-21ksoftirqd/009:39:590
10111994034,3cyclictest9-21ksoftirqd/012:00:010
10111994010,3cyclictest9-21ksoftirqd/012:15:180
1011299398,10cyclictest25-21ksoftirqd/110:05:001
1011299397,3cyclictest25-21ksoftirqd/109:14:311
1011299394,8cyclictest25-21ksoftirqd/108:35:231
1011299394,5cyclictest25-21ksoftirqd/111:26:071
10112993935,2cyclictest25-21ksoftirqd/112:40:001
10112993933,3cyclictest25-21ksoftirqd/107:15:171
10112993926,10cyclictest25-21ksoftirqd/109:50:241
1011299392,2cyclictest121rcu_preempt10:50:171
1011299390,5cyclictest25-21ksoftirqd/107:50:161
10111993935,2cyclictest9-21ksoftirqd/012:10:000
10112993832,3cyclictest25-21ksoftirqd/111:40:161
10112993832,3cyclictest25-21ksoftirqd/109:25:251
10112993822,5cyclictest25-21ksoftirqd/111:30:241
1011299381,8cyclictest25-21ksoftirqd/108:43:071
10111993833,3cyclictest9-21ksoftirqd/010:40:280
10111993832,3cyclictest9-21ksoftirqd/011:35:170
10113993731,4cyclictest33-21ksoftirqd/209:37:412
10113993731,4cyclictest31887-21cron10:04:592
10112993733,2cyclictest25-21ksoftirqd/112:05:001
10112993732,3cyclictest25-21ksoftirqd/112:30:261
10112993732,3cyclictest25-21ksoftirqd/109:35:151
10112993732,3cyclictest25-21ksoftirqd/108:25:251
10112993731,3cyclictest25-21ksoftirqd/108:25:001
10111993733,2cyclictest9-21ksoftirqd/007:35:000
10111993732,3cyclictest9-21ksoftirqd/011:45:110
10111993732,3cyclictest9-21ksoftirqd/010:50:020
10111993732,3cyclictest9-21ksoftirqd/007:55:000
1011199371,2cyclictest121rcu_preempt08:00:140
10114993631,3cyclictest41-21ksoftirqd/308:00:213
10114993630,4cyclictest41-21ksoftirqd/312:12:323
10114993629,4cyclictest41-21ksoftirqd/308:22:483
10113993631,3cyclictest33-21ksoftirqd/212:03:072
10113993630,4cyclictest33-21ksoftirqd/212:27:442
10113993630,4cyclictest33-21ksoftirqd/211:15:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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