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2026-07-11 - 15:47
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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 Jul 11, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
327632207172,24sleep30-21swapper/307:06:303
3622204170,22sleep00-21swapper/007:07:150
5242203170,22sleep20-21swapper/207:09:182
327362203170,22sleep10-21swapper/107:06:081
2715521770,3sleep191099cyclictest08:05:011
2861321470,3sleep291199cyclictest09:15:142
2026221360,3sleep291199cyclictest08:55:242
23052580,1sleep30-21swapper/309:25:263
267652570,4sleep026764-21unixbench_multi12:30:290
139391550,1ptp4l391rcuc/307:55:153
90999542,2cyclictest5475-21seq11:48:320
139391540,1ptp4l401ktimersoftd/312:35:213
139391540,1ptp4l401ktimersoftd/308:29:273
139391540,1ptp4l401ktimersoftd/308:29:263
139391530,1ptp4l401ktimersoftd/309:58:473
139391500,1ptp4l391rcuc/307:40:363
3052490,2sleep30-21swapper/308:15:183
91199470,45cyclictest0-21swapper/209:50:232
139391460,0ptp4l401ktimersoftd/312:09:123
134391460,1getstats0-21swapper/309:30:303
139391450,5ptp4l91299cyclictest11:11:543
139391430,0ptp4l401ktimersoftd/312:20:243
139391420,0ptp4l401ktimersoftd/307:30:243
139391410,1ptp4l401ktimersoftd/308:39:343
134391410,1getstats25086-1kworker/3:2H10:50:513
91199400,38cyclictest0-21swapper/209:35:432
91199400,1cyclictest0-21swapper/208:45:232
910993932,4cyclictest9183-21cron10:49:591
57898390,4rtkit-daemon590-21gmain08:06:421
139391390,0ptp4l401ktimersoftd/310:01:203
91199388,28cyclictest1681-21kworker/2:209:45:232
911993832,4cyclictest33-21ksoftirqd/212:25:002
91199380,37cyclictest0-21swapper/209:05:232
910993832,3cyclictest25-21ksoftirqd/108:25:001
910993831,4cyclictest25-21ksoftirqd/111:29:121
910993831,4cyclictest25-21ksoftirqd/107:45:361
139391380,1ptp4l401ktimersoftd/308:07:513
139391380,14ptp4l401ktimersoftd/309:05:163
134391380,1getstats0-21swapper/309:45:303
912993731,4cyclictest41-21ksoftirqd/310:08:343
910993731,4cyclictest25-21ksoftirqd/108:44:281
910993730,4cyclictest25-21ksoftirqd/109:16:581
912993630,4cyclictest41-21ksoftirqd/311:47:433
911993630,4cyclictest33-21ksoftirqd/212:18:062
911993629,4cyclictest33-21ksoftirqd/212:39:212
911993627,4cyclictest33-21ksoftirqd/210:07:252
91199360,2cyclictest0-21swapper/208:15:232
910993630,4cyclictest25-21ksoftirqd/111:39:471
910993630,4cyclictest25-21ksoftirqd/110:11:371
910993630,4cyclictest25-21ksoftirqd/107:38:381
910993630,4cyclictest25-21ksoftirqd/107:15:341
910993629,4cyclictest25-21ksoftirqd/109:33:581
909993629,4cyclictest9-21ksoftirqd/007:18:230
90999360,4cyclictest28926-21/usr/sbin/munin09:15:160
90999360,4cyclictest2122-21/usr/sbin/munin08:20:280
90999360,3cyclictest1277-21/usr/sbin/munin09:25:160
139491362,3phc2sys41-21ksoftirqd/307:10:463
912993530,3cyclictest41-21ksoftirqd/311:30:003
912993529,4cyclictest41-21ksoftirqd/311:42:103
912993529,4cyclictest41-21ksoftirqd/310:16:573
912993529,4cyclictest41-21ksoftirqd/307:36:193
912993528,4cyclictest41-21ksoftirqd/310:27:163
912993528,4cyclictest41-21ksoftirqd/308:00:113
911993530,3cyclictest33-21ksoftirqd/211:17:572
911993529,4cyclictest33-21ksoftirqd/209:01:582
911993528,4cyclictest33-21ksoftirqd/209:27:172
911993528,4cyclictest33-21ksoftirqd/207:40:592
910993530,3cyclictest25-21ksoftirqd/110:00:341
910993529,4cyclictest25-21ksoftirqd/112:29:331
910993529,4cyclictest25-21ksoftirqd/112:17:461
910993529,4cyclictest25-21ksoftirqd/112:03:371
910993529,4cyclictest25-21ksoftirqd/109:40:361
910993529,4cyclictest25-21ksoftirqd/109:09:431
910993529,4cyclictest25-21ksoftirqd/107:53:211
909993529,3cyclictest9-21ksoftirqd/011:42:590
909993528,4cyclictest9-21ksoftirqd/009:36:460
909993514,19cyclictest25214-21sensors_temp09:05:250
909993511,21cyclictest11480-21latency_hist08:40:000
90999350,4cyclictest16046-21grep09:55:160
139391350,0ptp4l401ktimersoftd/311:55:243
912993429,3cyclictest41-21ksoftirqd/312:28:073
912993428,4cyclictest41-21ksoftirqd/312:34:443
912993428,4cyclictest41-21ksoftirqd/312:13:193
912993428,4cyclictest41-21ksoftirqd/311:02:023
912993428,4cyclictest41-21ksoftirqd/309:20:003
911993428,4cyclictest33-21ksoftirqd/212:28:142
911993428,4cyclictest33-21ksoftirqd/211:48:542
911993428,4cyclictest33-21ksoftirqd/211:01:242
911993428,4cyclictest33-21ksoftirqd/210:48:412
911993428,4cyclictest33-21ksoftirqd/210:27:142
911993428,4cyclictest33-21ksoftirqd/210:12:552
911993428,4cyclictest33-21ksoftirqd/209:42:302
911993428,4cyclictest33-21ksoftirqd/209:10:412
911993428,4cyclictest33-21ksoftirqd/208:55:002
910993429,3cyclictest25-21ksoftirqd/107:10:031
910993429,3cyclictest15356-21cron09:55:001
910993428,4cyclictest25-21ksoftirqd/112:36:581
910993428,4cyclictest25-21ksoftirqd/112:30:421
910993428,4cyclictest25-21ksoftirqd/107:31:391
910993427,4cyclictest25-21ksoftirqd/109:29:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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