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2026-08-01 - 20:25
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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 Sat Aug 01, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190232235167,22sleep10-21swapper/107:08:241
139491210175,23phc2sys0-21swapper/307:09:063
190892208174,23sleep00-21swapper/007:09:160
190142205172,22sleep20-21swapper/207:08:172
229092670,5sleep341-21ksoftirqd/307:15:203
223292670,3sleep20-21swapper/207:15:152
19449996130,4cyclictest33-21ksoftirqd/209:20:002
19449995922,6cyclictest33-21ksoftirqd/211:45:002
231792580,2sleep30-21swapper/310:40:153
129782580,1sleep30-21swapper/312:35:013
129782580,1sleep30-21swapper/312:35:013
19449995524,3cyclictest33-21ksoftirqd/207:10:212
19449995423,3cyclictest33-21ksoftirqd/212:24:592
19449995420,8cyclictest33-21ksoftirqd/208:25:272
139391540,1ptp4l401ktimersoftd/309:19:433
139391540,1ptp4l391rcuc/312:05:053
67942530,2sleep20-21swapper/208:55:282
139391530,1ptp4l401ktimersoftd/309:28:513
127702530,3sleep2311rcuc/210:15:272
127702530,3sleep2311rcuc/210:15:272
19449995222,3cyclictest33-21ksoftirqd/210:30:222
19449995220,4cyclictest33-21ksoftirqd/211:05:142
57898510,2rtkit-daemon0-21swapper/310:18:083
57898510,2rtkit-daemon0-21swapper/310:18:073
19449995121,4cyclictest33-21ksoftirqd/212:10:282
286152500,5sleep09-21ksoftirqd/009:44:350
19449995023,7cyclictest33-21ksoftirqd/209:30:192
19449995023,7cyclictest33-21ksoftirqd/208:35:182
19449995022,4cyclictest33-21ksoftirqd/209:40:212
19449994919,4cyclictest33-21ksoftirqd/209:45:222
19449994821,4cyclictest33-21ksoftirqd/212:05:282
19449994812,4cyclictest33-21ksoftirqd/210:35:262
27942470,1sleep10-21swapper/107:40:251
19449994721,7cyclictest33-21ksoftirqd/212:25:182
19449994719,7cyclictest33-21ksoftirqd/208:40:222
19449994718,4cyclictest33-21ksoftirqd/208:45:222
19449994716,4cyclictest33-21ksoftirqd/212:40:002
19449994715,3cyclictest33-21ksoftirqd/210:45:212
268092460,2sleep30-21swapper/309:40:143
19449994640,3cyclictest33-21ksoftirqd/209:40:002
19449994632,3cyclictest33-21ksoftirqd/212:05:002
19449994620,6cyclictest33-21ksoftirqd/210:55:172
19449994618,3cyclictest33-21ksoftirqd/209:25:272
19449994616,3cyclictest33-21ksoftirqd/212:16:442
19449994612,4cyclictest33-21ksoftirqd/211:30:232
19450994538,4cyclictest3763-21cron07:45:003
19449994518,3cyclictest33-21ksoftirqd/207:52:282
19449994517,3cyclictest33-21ksoftirqd/207:30:012
19449994516,3cyclictest33-21ksoftirqd/210:07:122
19449994515,3cyclictest33-21ksoftirqd/212:00:002
19449994515,3cyclictest33-21ksoftirqd/212:00:002
19449994515,3cyclictest33-21ksoftirqd/209:58:292
19449994439,3cyclictest33-21ksoftirqd/210:30:002
19449994418,6cyclictest33-21ksoftirqd/209:25:002
19449994416,5cyclictest33-21ksoftirqd/208:30:252
19449994413,7cyclictest33-21ksoftirqd/210:05:002
19449994413,4cyclictest33-21ksoftirqd/211:02:072
1944999436,7cyclictest33-21ksoftirqd/211:20:142
1944999433,7cyclictest33-21ksoftirqd/210:10:132
19449994312,10cyclictest33-21ksoftirqd/210:44:592
139391430,0ptp4l401ktimersoftd/311:37:023
139391430,0ptp4l401ktimersoftd/307:34:183
1944999428,3cyclictest33-21ksoftirqd/210:50:232
1944999427,11cyclictest33-21ksoftirqd/208:20:002
1944999427,10cyclictest33-21ksoftirqd/208:50:172
19449994236,3cyclictest33-21ksoftirqd/207:45:002
1944999423,2cyclictest121rcu_preempt11:15:192
19449994232,2cyclictest33-21ksoftirqd/209:10:162
1944999419,5cyclictest33-21ksoftirqd/208:00:212
19449994111,7cyclictest33-21ksoftirqd/208:00:002
139391410,1ptp4l401ktimersoftd/307:39:213
139391410,0ptp4l401ktimersoftd/311:13:453
139391410,0ptp4l401ktimersoftd/310:32:023
19449994027,10cyclictest33-21ksoftirqd/211:10:302
19449994026,11cyclictest33-21ksoftirqd/208:05:152
19449994011,3cyclictest33-21ksoftirqd/209:01:042
134491400,1getstats0-21swapper/309:14:173
19450993934,3cyclictest41-21ksoftirqd/310:55:003
19450993934,3cyclictest24549-21fschecks_count09:35:163
19449993932,4cyclictest33-21ksoftirqd/211:40:002
19449993930,3cyclictest33-21ksoftirqd/208:15:002
19448993934,3cyclictest27436-21basename10:50:001
19450993833,3cyclictest41-21ksoftirqd/312:30:013
19450993833,3cyclictest4056-21fschecks_count12:15:173
19449993834,2cyclictest33-21ksoftirqd/211:54:592
19449993833,3cyclictest33-21ksoftirqd/211:30:002
19449993833,3cyclictest33-21ksoftirqd/207:25:002
19449993832,3cyclictest33-21ksoftirqd/209:50:232
19449993832,3cyclictest33-21ksoftirqd/207:25:182
1944999381,2cyclictest121rcu_preempt07:49:502
19448993831,5cyclictest25-21ksoftirqd/108:37:301
1944899380,2cyclictest6588-21/usr/sbin/munin07:50:231
19450993727,9cyclictest41-21ksoftirqd/311:55:233
19450993727,9cyclictest41-21ksoftirqd/311:55:233
19449993733,2cyclictest33-21ksoftirqd/209:10:012
19449993731,3cyclictest33-21ksoftirqd/207:40:002
19449993728,3cyclictest33-21ksoftirqd/210:25:012
1944999370,3cyclictest121rcu_preempt08:20:112
19448993731,4cyclictest25-21ksoftirqd/110:51:411
19448993731,4cyclictest25-21ksoftirqd/110:24:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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