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2026-04-16 - 20:53
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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 Thu Apr 16, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205170,24phc2sys0-21swapper/307:08:153
139491205170,24phc2sys0-21swapper/307:08:153
26252204171,22sleep20-21swapper/207:06:222
26252204171,22sleep20-21swapper/207:06:222
26192203170,22sleep10-21swapper/107:06:161
26192203170,22sleep10-21swapper/107:06:161
28922201168,22sleep00-21swapper/007:09:410
28922201168,22sleep00-21swapper/007:09:410
3210997510,19cyclictest13831-21date12:00:012
321099710,31cyclictest29040-21sshd11:21:252
60412550,2sleep10-21swapper/111:40:271
321099526,21cyclictest11100-21seq09:39:552
287432520,2sleep10-21swapper/110:15:151
146332510,3sleep314637-21irqrtprio12:00:183
321099463,30cyclictest0-21swapper/208:31:052
321099451,3cyclictest0-21swapper/209:59:272
321099441,3cyclictest0-21swapper/210:57:182
139391440,0ptp4l401ktimersoftd/309:39:563
139391430,0ptp4l401ktimersoftd/311:07:283
139391430,0ptp4l401ktimersoftd/307:21:003
3211994222,18cyclictest41-21ksoftirqd/309:20:203
321099429,19cyclictest14682-21seq08:39:512
321099429,19cyclictest14682-21seq08:39:502
139391410,0ptp4l401ktimersoftd/311:39:303
3211994034,4cyclictest41-21ksoftirqd/310:00:003
321099403,23cyclictest0-21swapper/212:07:322
3208993934,3cyclictest9-21ksoftirqd/008:45:010
3208993931,5cyclictest9-21ksoftirqd/008:50:130
139391380,0ptp4l401ktimersoftd/311:19:253
139391380,0ptp4l401ktimersoftd/311:19:253
3209993731,4cyclictest25-21ksoftirqd/112:34:131
3209993731,4cyclictest25-21ksoftirqd/107:25:061
3208993733,2cyclictest9-21ksoftirqd/008:15:260
3208993732,3cyclictest9-21ksoftirqd/010:55:000
3208993732,3cyclictest9-21ksoftirqd/007:20:010
3208993732,2cyclictest9-21ksoftirqd/010:05:010
3208993731,3cyclictest9-21ksoftirqd/011:15:000
3211993613,21cyclictest4894-21sed08:20:003
3210993630,4cyclictest33-21ksoftirqd/208:44:462
3210993630,4cyclictest33-21ksoftirqd/207:49:382
3209993631,3cyclictest25-21ksoftirqd/110:25:081
3209993630,4cyclictest25-21ksoftirqd/111:03:201
3209993630,4cyclictest25-21ksoftirqd/109:21:021
3209993630,3cyclictest25-21ksoftirqd/110:20:101
3209993629,5cyclictest25-21ksoftirqd/108:16:361
3208993631,3cyclictest9-21ksoftirqd/012:00:000
3208993630,4cyclictest9-21ksoftirqd/012:32:210
3208993630,3cyclictest9-21ksoftirqd/009:10:040
3211993529,4cyclictest41-21ksoftirqd/310:08:343
3211993513,20cyclictest11268-21cron11:55:003
3211993511,21cyclictest15624-21df_abs10:55:163
3211993510,22cyclictest4859-21fschecks_count11:40:163
3210993530,3cyclictest33-21ksoftirqd/212:16:342
3210993530,3cyclictest33-21ksoftirqd/209:48:242
3210993529,4cyclictest33-21ksoftirqd/209:24:402
3209993529,4cyclictest25-21ksoftirqd/110:42:461
3209993529,4cyclictest25-21ksoftirqd/109:50:231
3209993529,4cyclictest25-21ksoftirqd/109:04:071
3209993529,4cyclictest25-21ksoftirqd/108:45:361
3209993529,4cyclictest25-21ksoftirqd/108:09:311
3209993528,5cyclictest25-21ksoftirqd/111:18:441
3209993528,5cyclictest25-21ksoftirqd/111:18:441
320899353,30cyclictest1628-21latency_hist09:20:010
3208993531,3cyclictest9-21ksoftirqd/010:10:010
3208993531,3cyclictest9-21ksoftirqd/009:00:000
3208993531,3cyclictest9-21ksoftirqd/007:15:010
3208993531,2cyclictest9-21ksoftirqd/011:20:000
3208993531,2cyclictest9-21ksoftirqd/011:20:000
3208993530,3cyclictest9-21ksoftirqd/011:27:500
3208993530,3cyclictest9-21ksoftirqd/010:30:000
3208993530,3cyclictest9-21ksoftirqd/010:00:010
3208993530,3cyclictest9-21ksoftirqd/009:25:120
3208993530,2cyclictest9-21ksoftirqd/007:24:590
3208993530,2cyclictest449-21dbus-daemon07:25:220
3208993529,3cyclictest9-21ksoftirqd/007:55:000
3211993429,3cyclictest41-21ksoftirqd/312:15:103
3211993429,3cyclictest41-21ksoftirqd/310:01:043
3211993429,3cyclictest41-21ksoftirqd/309:48:363
3211993428,4cyclictest41-21ksoftirqd/308:58:233
3211993428,4cyclictest41-21ksoftirqd/308:30:593
3211993428,4cyclictest41-21ksoftirqd/307:35:343
3211993428,3cyclictest41-21ksoftirqd/309:15:123
3211993427,5cyclictest41-21ksoftirqd/310:20:003
3211993426,6cyclictest41-21ksoftirqd/307:45:003
3211993412,20cyclictest6768-21/usr/sbin/munin11:45:233
3211993412,20cyclictest19695-21/usr/sbin/munin08:50:243
3211993411,21cyclictest31978-21/usr/sbin/munin11:30:223
3210993429,3cyclictest33-21ksoftirqd/210:20:002
3210993429,3cyclictest33-21ksoftirqd/207:24:462
3210993428,4cyclictest33-21ksoftirqd/210:50:492
3210993428,4cyclictest33-21ksoftirqd/210:20:572
3210993428,4cyclictest33-21ksoftirqd/210:07:092
3210993428,4cyclictest33-21ksoftirqd/209:33:392
321099341,31cyclictest0-21swapper/207:55:192
321099340,4cyclictest207-21systemd-journal07:32:232
321099340,3cyclictest30016-21chrt12:31:592
3209993429,3cyclictest25-21ksoftirqd/110:51:251
3209993429,3cyclictest25-21ksoftirqd/109:25:111
3209993428,4cyclictest25-21ksoftirqd/110:09:411
3209993428,4cyclictest25-21ksoftirqd/110:04:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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