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2026-07-07 - 06:59
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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 Tue Jul 07, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491227164,51phc2sys0-21swapper/319:06:153
139491227164,51phc2sys0-21swapper/319:06:153
150172203169,22sleep00-21swapper/019:06:290
150172203169,22sleep00-21swapper/019:06:290
149942203169,22sleep20-21swapper/219:06:112
149942203169,22sleep20-21swapper/219:06:112
149412201168,22sleep10-21swapper/119:05:301
149412201168,22sleep10-21swapper/119:05:301
611121490,7sleep31559199cyclictest22:15:193
139391750,1ptp4l391rcuc/322:10:233
149332630,3sleep3391rcuc/322:35:013
1559199548,44cyclictest12631-21kworker/3:120:41:333
1559199547,45cyclictest6011-21kworker/3:023:12:133
139391450,2ptp4l0-21swapper/300:30:353
15588994439,3cyclictest32600-21turbostat.cron22:05:000
139391430,0ptp4l401ktimersoftd/320:20:283
139391430,0ptp4l401ktimersoftd/300:18:433
1558999423,9cyclictest25-21ksoftirqd/123:10:181
139391420,0ptp4l401ktimersoftd/321:30:243
15589994036,3cyclictest25-21ksoftirqd/119:20:011
15589994035,2cyclictest25-21ksoftirqd/122:59:591
15589994035,2cyclictest25-21ksoftirqd/121:20:001
57898390,5rtkit-daemon21172-21python22:45:241
15589993934,3cyclictest25-21ksoftirqd/120:19:591
1558899393,34cyclictest15701-21cron23:45:010
57898380,6rtkit-daemon0-21swapper/022:57:180
15591993814,21cyclictest9509-21unixbench_multi22:20:263
15589993833,3cyclictest25-21ksoftirqd/100:35:001
15589993832,4cyclictest25-21ksoftirqd/119:52:021
15589993832,4cyclictest25-21ksoftirqd/119:52:021
15591993711,22cyclictest1800-21expr23:15:153
15590993731,3cyclictest33-21ksoftirqd/222:00:002
15590993728,8cyclictest33-21ksoftirqd/223:00:252
15589993733,2cyclictest25-21ksoftirqd/122:35:011
15589993732,3cyclictest25-21ksoftirqd/122:54:591
15589993732,3cyclictest25-21ksoftirqd/120:14:591
15589993731,4cyclictest25-21ksoftirqd/123:42:331
15589993731,4cyclictest25-21ksoftirqd/100:02:081
15589993731,4cyclictest25-21ksoftirqd/100:02:071
15588993721,13cyclictest9-21ksoftirqd/000:30:130
139391370,0ptp4l401ktimersoftd/319:44:553
1559199369,26cyclictest12631-21kworker/3:120:57:123
15591993611,22cyclictest28800-21cron20:50:003
15590993631,3cyclictest33-21ksoftirqd/220:49:252
15590993630,4cyclictest33-21ksoftirqd/220:52:462
15590993630,4cyclictest33-21ksoftirqd/200:27:412
15589993632,3cyclictest25-21ksoftirqd/121:25:001
15589993632,2cyclictest25-21ksoftirqd/120:00:011
15589993631,2cyclictest25-21ksoftirqd/120:25:191
15589993630,4cyclictest25-21ksoftirqd/119:20:541
15589993630,4cyclictest25-21ksoftirqd/119:11:521
15589993630,4cyclictest25-21ksoftirqd/100:14:161
15589993630,3cyclictest25-21ksoftirqd/121:40:011
15589993629,4cyclictest25-21ksoftirqd/123:23:171
15591993530,3cyclictest41-21ksoftirqd/321:00:253
15591993530,3cyclictest41-21ksoftirqd/319:11:573
15591993529,4cyclictest41-21ksoftirqd/323:59:363
15591993529,4cyclictest41-21ksoftirqd/323:33:593
15591993529,4cyclictest41-21ksoftirqd/323:33:583
15591993529,4cyclictest41-21ksoftirqd/321:48:503
15591993529,4cyclictest41-21ksoftirqd/321:16:223
15591993513,20cyclictest25426-21/usr/sbin/munin00:05:253
15591993513,19cyclictest25717-21/usr/sbin/munin19:35:133
15591993512,20cyclictest601-21/usr/sbin/munin22:05:113
15591993511,21cyclictest21443-21fw_packets21:40:163
1559199350,3cyclictest16123-21head22:35:213
15590993530,3cyclictest33-21ksoftirqd/200:23:372
15590993529,4cyclictest33-21ksoftirqd/223:25:372
15590993529,4cyclictest33-21ksoftirqd/223:20:482
15590993529,4cyclictest33-21ksoftirqd/222:26:202
15590993529,4cyclictest33-21ksoftirqd/221:16:172
15590993529,4cyclictest33-21ksoftirqd/200:13:032
15590993529,3cyclictest33-21ksoftirqd/223:00:002
15589993531,3cyclictest25-21ksoftirqd/123:40:001
15589993531,3cyclictest25-21ksoftirqd/100:10:011
15589993530,3cyclictest25-21ksoftirqd/122:20:011
15589993530,3cyclictest25-21ksoftirqd/121:30:001
15589993530,3cyclictest25-21ksoftirqd/120:50:001
15589993530,3cyclictest25-21ksoftirqd/119:45:111
15589993530,3cyclictest25-21ksoftirqd/100:22:481
15589993529,4cyclictest25-21ksoftirqd/123:06:111
15589993529,4cyclictest25-21ksoftirqd/123:02:181
15589993529,4cyclictest25-21ksoftirqd/121:49:371
15589993529,4cyclictest25-21ksoftirqd/121:30:441
15589993529,3cyclictest25-21ksoftirqd/123:54:591
15588993529,4cyclictest9-21ksoftirqd/019:29:040
1559199348,22cyclictest16259-21cpu19:15:113
15591993429,3cyclictest41-21ksoftirqd/319:46:023
15591993429,3cyclictest41-21ksoftirqd/319:33:243
15591993428,4cyclictest41-21ksoftirqd/300:37:523
15591993428,4cyclictest41-21ksoftirqd/300:37:523
15591993413,18cyclictest23131-21phc2sys-jitter20:35:233
15591993412,19cyclictest9952-21latency_hist20:10:003
15591993412,19cyclictest1317-21runrttasks23:38:593
15591993411,20cyclictest21061-21cut22:45:233
1559199340,4cyclictest6364-21date21:10:003
15590993429,3cyclictest33-21ksoftirqd/222:07:272
15590993429,3cyclictest33-21ksoftirqd/220:05:112
15590993428,4cyclictest33-21ksoftirqd/223:30:352
15590993428,4cyclictest33-21ksoftirqd/223:30:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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