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2026-09-07 - 20:19
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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 Sep 07, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491230164,22phc2sys0-21swapper/307:07:203
199912203170,22sleep00-21swapper/007:05:510
202672202170,21sleep10-21swapper/107:09:251
202882200167,22sleep20-21swapper/207:09:432
625621810,5sleep32061199cyclictest11:10:173
11992550,3sleep10-21swapper/108:45:121
291102490,2sleep30-21swapper/307:25:243
57898480,1rtkit-daemon0-21swapper/211:59:132
20611994627,16cyclictest41-21ksoftirqd/311:38:573
20609994337,4cyclictest1317-21runrttasks07:29:261
139391430,0ptp4l401ktimersoftd/310:55:203
139391420,0ptp4l401ktimersoftd/311:24:113
139391420,0ptp4l401ktimersoftd/309:40:223
20609994034,3cyclictest25-21ksoftirqd/107:19:591
139391400,0ptp4l401ktimersoftd/309:50:203
139391400,0ptp4l401ktimersoftd/309:16:413
57898380,21rtkit-daemon26840-21if_enp1s010:45:172
139391380,1ptp4l391rcuc/308:45:163
134391380,1getstats0-21swapper/312:30:273
20611993714,21cyclictest3507-21/usr/sbin/munin08:50:173
20610993719,9cyclictest33-21ksoftirqd/211:11:322
20609993732,3cyclictest25-21ksoftirqd/112:35:011
20609993731,4cyclictest25-21ksoftirqd/111:19:541
20608993732,3cyclictest9-21ksoftirqd/011:00:000
20611993630,4cyclictest41-21ksoftirqd/310:02:423
20611993630,4cyclictest41-21ksoftirqd/309:47:493
20611993614,20cyclictest644-21fschecks_count12:05:163
20611993613,20cyclictest32487-21mailstats08:40:243
20610993631,3cyclictest33-21ksoftirqd/208:37:002
20610993630,4cyclictest33-21ksoftirqd/208:50:132
20609993632,2cyclictest25-21ksoftirqd/112:15:001
20609993632,2cyclictest25-21ksoftirqd/112:15:001
20609993631,3cyclictest25-21ksoftirqd/110:34:591
20609993630,4cyclictest25-21ksoftirqd/112:39:091
20609993630,4cyclictest25-21ksoftirqd/111:00:561
20609993630,4cyclictest25-21ksoftirqd/109:52:241
20609993630,4cyclictest25-21ksoftirqd/109:04:031
20609993630,4cyclictest25-21ksoftirqd/108:24:151
20611993530,3cyclictest41-21ksoftirqd/309:33:313
20611993530,3cyclictest41-21ksoftirqd/307:35:013
20611993529,4cyclictest41-21ksoftirqd/311:34:483
20611993529,4cyclictest41-21ksoftirqd/310:11:523
20611993529,4cyclictest41-21ksoftirqd/309:06:503
20611993529,4cyclictest41-21ksoftirqd/309:06:503
20611993512,21cyclictest16081-21sed12:35:253
20611993512,20cyclictest4951-21/usr/sbin/munin07:45:253
20611993511,22cyclictest22425-21sh11:45:003
20610993529,4cyclictest33-21ksoftirqd/211:48:392
20610993529,4cyclictest33-21ksoftirqd/210:30:282
20610993529,3cyclictest33-21ksoftirqd/207:13:592
20609993530,3cyclictest25-21ksoftirqd/107:32:431
20609993530,2cyclictest25-21ksoftirqd/108:35:131
20609993529,4cyclictest25-21ksoftirqd/111:54:281
20609993529,4cyclictest25-21ksoftirqd/111:10:311
20609993529,4cyclictest25-21ksoftirqd/110:48:291
20609993529,4cyclictest25-21ksoftirqd/110:16:551
20609993529,4cyclictest25-21ksoftirqd/110:16:551
20609993529,4cyclictest25-21ksoftirqd/108:16:211
20609993529,3cyclictest25-21ksoftirqd/108:50:211
20608993529,4cyclictest9-21ksoftirqd/010:49:120
20608993529,4cyclictest9-21ksoftirqd/009:59:330
20611993429,3cyclictest41-21ksoftirqd/309:23:343
2061199342,28cyclictest21633-21cpuspeed_turbos10:35:133
20611993413,18cyclictest9785-21/usr/sbin/munin12:25:143
20610993429,3cyclictest33-21ksoftirqd/211:50:182
20610993429,3cyclictest33-21ksoftirqd/211:04:442
20610993429,3cyclictest33-21ksoftirqd/209:30:122
20610993428,4cyclictest33-21ksoftirqd/210:35:302
20610993428,4cyclictest33-21ksoftirqd/210:02:242
20610993428,4cyclictest33-21ksoftirqd/209:57:432
20610993428,4cyclictest33-21ksoftirqd/209:49:162
20610993428,4cyclictest33-21ksoftirqd/208:43:182
20610993428,4cyclictest33-21ksoftirqd/208:07:222
20610993428,4cyclictest33-21ksoftirqd/207:49:502
20609993429,3cyclictest25-21ksoftirqd/112:00:001
20609993429,3cyclictest25-21ksoftirqd/111:35:001
20609993429,3cyclictest25-21ksoftirqd/110:00:131
20609993428,4cyclictest25-21ksoftirqd/110:08:251
20609993428,4cyclictest25-21ksoftirqd/108:26:161
20609993428,3cyclictest25-21ksoftirqd/111:40:001
20608993430,2cyclictest9-21ksoftirqd/011:33:280
20608993428,4cyclictest9-21ksoftirqd/009:47:460
20608993428,4cyclictest9-21ksoftirqd/008:05:150
20608993427,5cyclictest9-21ksoftirqd/010:11:170
2061199339,3cyclictest4391-21irqstats11:05:203
2061199339,3cyclictest4391-21irqstats11:05:203
20611993328,3cyclictest41-21ksoftirqd/308:39:093
20611993328,3cyclictest41-21ksoftirqd/308:25:143
20611993328,3cyclictest41-21ksoftirqd/307:55:123
20611993327,4cyclictest41-21ksoftirqd/310:31:293
20611993327,4cyclictest41-21ksoftirqd/308:34:233
20611993327,4cyclictest41-21ksoftirqd/308:12:303
20610993328,3cyclictest33-21ksoftirqd/211:35:172
20610993327,4cyclictest33-21ksoftirqd/212:33:362
20610993327,4cyclictest33-21ksoftirqd/210:20:542
20610993327,4cyclictest33-21ksoftirqd/208:26:482
20610993327,4cyclictest33-21ksoftirqd/208:10:472
20610993327,4cyclictest33-21ksoftirqd/207:37:342
20610993327,3cyclictest33-21ksoftirqd/212:19:562
20610993327,3cyclictest33-21ksoftirqd/211:20:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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