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2026-05-17 - 21:17
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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 Sun May 17, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43602203169,23sleep10-21swapper/107:05:431
46582201167,23sleep30-21swapper/307:09:313
46802200166,22sleep00-21swapper/007:09:470
43662195163,21sleep20-21swapper/207:05:472
469928662,15sleep10-21swapper/107:10:021
4993997012,16cyclictest1303-21runrttasks09:15:233
499399639,16cyclictest0-21swapper/311:45:243
4993996310,16cyclictest25833-21cat07:50:183
499399629,16cyclictest0-21swapper/307:15:173
157032610,4sleep115709-21irqrtprio09:40:191
4993996012,17cyclictest5815-21sed08:15:173
4993995911,8cyclictest23165-21sed12:05:173
499399579,15cyclictest0-21swapper/311:20:173
499399579,15cyclictest0-21swapper/307:10:173
4993995611,16cyclictest6023-21date11:30:203
4993995511,8cyclictest2315-21gnome-shell09:11:593
4993995510,15cyclictest14309-21timerwakeupswit10:40:273
499399549,16cyclictest0-21swapper/309:35:153
499399548,16cyclictest0-21swapper/307:20:163
499399538,16cyclictest0-21swapper/310:45:183
4993995312,17cyclictest2315-21gnome-shell11:53:593
4993995310,7cyclictest10791-21irqstats09:30:183
499399529,8cyclictest21629-21ls09:50:263
236672520,1sleep00-21swapper/009:55:230
203632520,1sleep20-21swapper/208:45:162
4993995112,6cyclictest1095-21meminfo10:15:203
4993995111,7cyclictest26423-21ssh10:00:263
4993995111,7cyclictest26423-21ssh10:00:263
4993995110,8cyclictest31555-21ls09:05:263
200542510,4sleep09-21ksoftirqd/009:50:130
138491510,1ptp4l391rcuc/310:31:413
4993995010,7cyclictest30560-21ps12:20:183
499399499,8cyclictest22969-21ps08:50:173
499399489,7cyclictest17180-21apt-get09:45:123
4993994811,8cyclictest7921-21hddtemp_smartct09:25:153
499399479,7cyclictest20713-21ps12:00:193
499399479,16cyclictest0-21swapper/311:28:573
4990994742,3cyclictest27118-21grep12:15:010
499399458,7cyclictest29080-21ls10:05:243
138491450,0ptp4l401ktimersoftd/310:35:163
138491450,0ptp4l401ktimersoftd/310:35:163
63522440,1sleep20-21swapper/209:20:232
499399449,7cyclictest3362-21ls08:10:213
4993994410,13cyclictest23041-21ps07:45:183
4991994337,3cyclictest25-21ksoftirqd/110:20:001
4991994337,3cyclictest25-21ksoftirqd/108:19:591
138491430,0ptp4l401ktimersoftd/308:49:443
4991994237,2cyclictest25-21ksoftirqd/110:00:001
138491420,0ptp4l401ktimersoftd/311:15:303
138491420,0ptp4l401ktimersoftd/311:12:463
138491420,0ptp4l401ktimersoftd/310:54:563
138491420,0ptp4l401ktimersoftd/310:20:193
4992994135,3cyclictest24631-21cron12:10:002
4991994135,3cyclictest25-21ksoftirqd/107:19:591
499399399,14cyclictest5214-21df12:35:133
4993993911,11cyclictest32734-21perl08:05:163
4992993932,4cyclictest33-21ksoftirqd/210:29:232
4991993934,3cyclictest25-21ksoftirqd/107:24:591
499199391,36cyclictest7145-21grep11:35:001
499399388,17cyclictest0-21swapper/310:25:273
4993993815,20cyclictest17907-21diskstats11:55:143
4993993811,17cyclictest18039-21awk07:35:173
4992993832,4cyclictest33-21ksoftirqd/208:28:442
4991993833,3cyclictest25-21ksoftirqd/108:35:101
4991993831,4cyclictest25-21ksoftirqd/107:25:121
4993993731,4cyclictest41-21ksoftirqd/309:01:303
4993993731,4cyclictest41-21ksoftirqd/309:01:303
4991993731,3cyclictest25-21ksoftirqd/109:15:011
4991993730,4cyclictest25-21ksoftirqd/112:06:341
4991993730,4cyclictest25-21ksoftirqd/108:41:261
4990993732,3cyclictest9-21ksoftirqd/012:10:000
4993993630,4cyclictest41-21ksoftirqd/309:55:113
4993993630,4cyclictest41-21ksoftirqd/307:55:553
4993993629,4cyclictest41-21ksoftirqd/311:37:243
4992993631,3cyclictest33-21ksoftirqd/208:00:202
4992993631,3cyclictest33-21ksoftirqd/208:00:192
4992993630,4cyclictest33-21ksoftirqd/211:50:432
4992993630,4cyclictest33-21ksoftirqd/208:21:292
4992993630,3cyclictest33-21ksoftirqd/210:35:102
4992993630,3cyclictest33-21ksoftirqd/210:35:102
4991993630,3cyclictest25-21ksoftirqd/110:35:171
4991993630,3cyclictest25-21ksoftirqd/110:35:171
4991993629,4cyclictest25-21ksoftirqd/110:20:071
4991993629,4cyclictest25-21ksoftirqd/108:01:551
4991993629,4cyclictest25-21ksoftirqd/108:01:551
499199361,32cyclictest29368-21cron09:05:001
499199361,32cyclictest29368-21cron09:05:001
4990993630,4cyclictest9-21ksoftirqd/008:21:310
499399359,16cyclictest10957-21ls11:40:203
499399359,12cyclictest1319-21snmpd12:10:203
499399358,16cyclictest0-21swapper/308:00:263
499399358,16cyclictest0-21swapper/308:00:263
4993993511,16cyclictest14490-21sshd08:34:263
4993993511,16cyclictest14490-21sshd08:34:263
4992993530,3cyclictest33-21ksoftirqd/207:20:122
4992993529,4cyclictest33-21ksoftirqd/207:10:372
4991993531,3cyclictest25-21ksoftirqd/112:20:121
4991993530,3cyclictest25-21ksoftirqd/110:45:571
4991993529,4cyclictest25-21ksoftirqd/112:38:151
4991993529,4cyclictest25-21ksoftirqd/110:27:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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