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2025-12-14 - 06:08
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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 Sun Dec 14, 2025 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194642214180,22sleep20-21swapper/219:07:342
193152211178,22sleep00-21swapper/019:05:430
193132211177,23sleep30-21swapper/319:05:433
194632208176,21sleep10-21swapper/119:07:341
11432790,2sleep30-21swapper/319:35:303
311452640,5sleep11994199cyclictest20:40:201
110532610,2sleep30-21swapper/322:10:313
1394916040,11phc2sys0-21swapper/319:10:013
112032560,1sleep00-21swapper/000:25:350
26342510,3sleep3391rcuc/319:40:213
1994099491,45cyclictest22214-21dpkg23:45:000
287742480,2sleep00-21swapper/019:25:300
139391460,0ptp4l401ktimersoftd/323:57:583
139391450,1ptp4l401ktimersoftd/323:51:343
139391450,0ptp4l401ktimersoftd/300:29:293
19942994437,4cyclictest4592-21wc00:15:012
139391430,0ptp4l401ktimersoftd/322:25:373
139391420,0ptp4l401ktimersoftd/319:55:463
1994399412,36cyclictest31305-21fschecks_count20:40:223
139391410,0ptp4l401ktimersoftd/320:05:053
19943994036,2cyclictest41-21ksoftirqd/319:20:003
19941994035,3cyclictest25-21ksoftirqd/123:00:001
19941994035,3cyclictest14892-21cron21:15:001
1994399395,7cyclictest41-21ksoftirqd/300:08:153
19941993934,3cyclictest25-21ksoftirqd/122:15:001
19941993934,3cyclictest25-21ksoftirqd/121:20:001
19941993932,4cyclictest25-21ksoftirqd/121:25:001
19940993934,3cyclictest9-21ksoftirqd/022:30:010
1994399385,4cyclictest41-21ksoftirqd/323:35:283
1994399385,3cyclictest41-21ksoftirqd/319:50:323
19943993835,2cyclictest41-21ksoftirqd/321:40:003
19943993834,2cyclictest41-21ksoftirqd/300:20:003
19943993833,3cyclictest41-21ksoftirqd/300:15:003
19943993827,9cyclictest41-21ksoftirqd/320:25:323
19943993812,7cyclictest41-21ksoftirqd/321:15:003
19942993831,4cyclictest33-21ksoftirqd/221:35:592
19942993831,4cyclictest33-21ksoftirqd/219:28:592
19941993832,3cyclictest25-21ksoftirqd/123:45:011
19940993833,3cyclictest9-21ksoftirqd/019:35:010
19940993832,3cyclictest9-21ksoftirqd/019:35:270
139391380,1ptp4l401ktimersoftd/320:45:193
139391380,1ptp4l391rcuc/320:50:233
1994399376,2cyclictest41-21ksoftirqd/321:20:323
1994399373,4cyclictest41-21ksoftirqd/319:29:593
19943993732,2cyclictest41-21ksoftirqd/322:30:223
19943993732,2cyclictest41-21ksoftirqd/322:15:263
19943993731,3cyclictest41-21ksoftirqd/321:55:013
19943993731,3cyclictest41-21ksoftirqd/300:20:283
19943993730,4cyclictest41-21ksoftirqd/300:00:273
19943993730,4cyclictest41-21ksoftirqd/300:00:273
19943993726,9cyclictest41-21ksoftirqd/323:45:243
19942993731,4cyclictest33-21ksoftirqd/222:34:102
19942993730,4cyclictest33-21ksoftirqd/221:22:582
19941993734,2cyclictest25-21ksoftirqd/119:35:001
19941993731,4cyclictest25-21ksoftirqd/121:02:501
19940993732,3cyclictest9-21ksoftirqd/021:00:260
1994399364,8cyclictest41-21ksoftirqd/323:20:303
19943993631,3cyclictest41-21ksoftirqd/320:25:003
19943993630,4cyclictest41-21ksoftirqd/322:37:443
19943993630,3cyclictest41-21ksoftirqd/322:40:363
19943993624,9cyclictest41-21ksoftirqd/322:00:013
19943993624,10cyclictest41-21ksoftirqd/322:45:233
19943993623,11cyclictest41-21ksoftirqd/320:31:393
19942993631,3cyclictest33-21ksoftirqd/221:10:272
19942993630,4cyclictest33-21ksoftirqd/222:45:042
19942993630,4cyclictest33-21ksoftirqd/222:22:352
19942993630,4cyclictest33-21ksoftirqd/220:57:582
19942993630,4cyclictest33-21ksoftirqd/220:03:262
19941993632,2cyclictest25-21ksoftirqd/122:00:011
19941993630,4cyclictest25-21ksoftirqd/122:19:481
19941993630,4cyclictest25-21ksoftirqd/121:05:111
19941993630,4cyclictest25-21ksoftirqd/119:49:411
19941993630,3cyclictest25-21ksoftirqd/121:35:001
19941993630,3cyclictest25-21ksoftirqd/100:10:271
19940993632,2cyclictest9-21ksoftirqd/021:15:000
19940993631,3cyclictest9-21ksoftirqd/023:25:290
19940993631,2cyclictest9-21ksoftirqd/021:10:000
19940993630,3cyclictest9-21ksoftirqd/000:20:280
19943993530,3cyclictest41-21ksoftirqd/323:15:003
19943993530,3cyclictest41-21ksoftirqd/322:10:003
19943993530,3cyclictest41-21ksoftirqd/322:05:013
19943993530,3cyclictest41-21ksoftirqd/321:50:003
19943993530,3cyclictest41-21ksoftirqd/321:50:003
19943993530,3cyclictest41-21ksoftirqd/319:25:003
19943993529,4cyclictest41-21ksoftirqd/321:34:213
19943993529,3cyclictest41-21ksoftirqd/322:55:003
19942993530,3cyclictest33-21ksoftirqd/221:31:312
19942993529,4cyclictest33-21ksoftirqd/200:35:042
19941993530,3cyclictest25-21ksoftirqd/122:55:001
19941993530,3cyclictest25-21ksoftirqd/121:45:001
19941993530,3cyclictest25-21ksoftirqd/120:10:001
19941993530,3cyclictest25-21ksoftirqd/119:40:001
19941993530,3cyclictest25-21ksoftirqd/100:40:001
19941993529,4cyclictest25-21ksoftirqd/119:25:001
19940993530,3cyclictest9-21ksoftirqd/022:15:270
19940993529,4cyclictest9-21ksoftirqd/022:45:460
19940993528,4cyclictest9-21ksoftirqd/020:00:060
139391350,0ptp4l401ktimersoftd/320:10:373
1994399345,2cyclictest41-21ksoftirqd/323:25:333
19943993430,2cyclictest41-21ksoftirqd/300:30:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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