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2026-04-29 - 17:50
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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 Wed Apr 29, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491233166,22phc2sys0-21swapper/307:09:143
137412233190,33sleep20-21swapper/207:06:002
139032210182,18sleep10-21swapper/107:07:591
138812200167,22sleep00-21swapper/007:07:420
207621730,3sleep31435299cyclictest07:50:163
275672600,6sleep327570-21df_abs12:05:143
139391600,1ptp4l401ktimersoftd/311:26:413
281712540,5sleep11435099cyclictest11:00:011
139391510,1ptp4l401ktimersoftd/307:15:033
288532500,1sleep30-21swapper/308:45:163
1434999476,8cyclictest9-21ksoftirqd/009:45:240
1434999455,10cyclictest9-21ksoftirqd/011:20:180
139391450,1ptp4l401ktimersoftd/312:25:343
139391450,0ptp4l401ktimersoftd/312:17:543
14352994439,3cyclictest16552-21cron07:15:003
1434999445,3cyclictest9-21ksoftirqd/009:40:160
1434999445,3cyclictest9-21ksoftirqd/009:40:160
139391440,2ptp4l401ktimersoftd/309:10:333
139391440,2ptp4l401ktimersoftd/309:10:333
139391440,0ptp4l401ktimersoftd/312:24:263
1434999437,2cyclictest9-21ksoftirqd/008:10:160
1434999436,3cyclictest9-21ksoftirqd/008:55:170
139391430,0ptp4l401ktimersoftd/310:43:283
139391430,0ptp4l401ktimersoftd/310:43:273
134391430,1getstats0-21swapper/310:34:333
14349994238,2cyclictest9-21ksoftirqd/012:14:590
139391420,0ptp4l401ktimersoftd/311:10:073
139391420,0ptp4l401ktimersoftd/311:03:493
14351994135,3cyclictest33-21ksoftirqd/209:00:002
14350994136,3cyclictest25-21ksoftirqd/112:40:001
1434999416,10cyclictest9-21ksoftirqd/007:35:000
1434999415,3cyclictest9-21ksoftirqd/011:45:000
1434999415,3cyclictest9-21ksoftirqd/011:30:210
1434999415,3cyclictest9-21ksoftirqd/008:25:250
139391410,0ptp4l401ktimersoftd/309:25:263
1434999402,3cyclictest9-21ksoftirqd/011:10:160
132822400,2sleep30-21swapper/309:20:173
14351993934,3cyclictest33-21ksoftirqd/212:20:012
14351993933,3cyclictest33-21ksoftirqd/212:05:172
1434999395,2cyclictest9-21ksoftirqd/007:20:140
1434999395,10cyclictest9-21ksoftirqd/011:39:590
139391390,1ptp4l24107-21ls11:55:263
14351993833,2cyclictest33-21ksoftirqd/210:15:002
14351993833,2cyclictest33-21ksoftirqd/210:15:002
14351993827,9cyclictest33-21ksoftirqd/208:25:242
14350993834,2cyclictest25-21ksoftirqd/107:45:001
14350993833,3cyclictest25-21ksoftirqd/111:35:001
14350993833,3cyclictest25-21ksoftirqd/109:40:001
1434999386,3cyclictest9-21ksoftirqd/010:30:270
1434999385,2cyclictest9-21ksoftirqd/009:55:250
14349993833,3cyclictest9-21ksoftirqd/012:00:010
14349993833,3cyclictest9-21ksoftirqd/007:20:000
1434999382,2cyclictest9-21ksoftirqd/008:50:150
14350993733,2cyclictest25-21ksoftirqd/108:25:011
14350993733,2cyclictest25-21ksoftirqd/107:40:001
14350993732,2cyclictest25-21ksoftirqd/109:00:001
14350993731,4cyclictest25-21ksoftirqd/111:51:311
14350993731,3cyclictest25-21ksoftirqd/108:10:001
14350993723,3cyclictest25-21ksoftirqd/109:30:241
1434999375,3cyclictest121rcu_preempt09:35:240
1434999375,2cyclictest9-21ksoftirqd/008:15:120
1434999373,2cyclictest9-21ksoftirqd/012:15:220
1434999373,2cyclictest121rcu_preempt12:30:150
14349993730,4cyclictest9-21ksoftirqd/010:10:000
1434999372,4cyclictest9-21ksoftirqd/011:15:220
1434999370,2cyclictest9-21ksoftirqd/007:25:240
139391370,0ptp4l401ktimersoftd/310:10:253
139391370,0ptp4l401ktimersoftd/310:10:253
14352993631,3cyclictest41-21ksoftirqd/308:57:583
14352993630,4cyclictest41-21ksoftirqd/309:45:343
14351993631,3cyclictest33-21ksoftirqd/212:00:182
14351993631,3cyclictest33-21ksoftirqd/210:58:022
14351993631,3cyclictest33-21ksoftirqd/210:03:102
14351993631,3cyclictest33-21ksoftirqd/209:39:592
14351993631,3cyclictest33-21ksoftirqd/209:15:182
14351993631,2cyclictest33-21ksoftirqd/208:05:192
14351993630,4cyclictest33-21ksoftirqd/210:30:102
14351993624,9cyclictest33-21ksoftirqd/211:45:192
14350993633,2cyclictest25-21ksoftirqd/107:15:191
14350993632,3cyclictest25-21ksoftirqd/109:05:001
14350993631,3cyclictest25-21ksoftirqd/112:25:001
14350993631,3cyclictest25-21ksoftirqd/109:25:001
14350993630,4cyclictest25-21ksoftirqd/110:33:301
14350993630,4cyclictest25-21ksoftirqd/110:15:281
14350993630,4cyclictest25-21ksoftirqd/109:56:551
14350993630,4cyclictest25-21ksoftirqd/108:33:231
14350993630,4cyclictest25-21ksoftirqd/108:27:531
14350993630,3cyclictest25-21ksoftirqd/111:30:011
14350993630,3cyclictest25-21ksoftirqd/107:50:121
14350993627,2cyclictest25-21ksoftirqd/110:45:191
14350993623,4cyclictest25-21ksoftirqd/108:45:261
1435099361,3cyclictest121rcu_preempt11:40:251
1434999367,3cyclictest9-21ksoftirqd/008:05:000
1434999367,2cyclictest9-21ksoftirqd/008:40:220
1434999367,2cyclictest9-21ksoftirqd/008:40:220
1434999366,3cyclictest9-21ksoftirqd/012:26:570
14349993632,2cyclictest9-21ksoftirqd/008:40:000
14349993632,2cyclictest9-21ksoftirqd/008:34:590
1434999360,2cyclictest121rcu_preempt11:00:230
57898350,2rtkit-daemon577-21rtkit-daemon07:46:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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