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2026-06-01 - 22:03
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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 Mon Jun 01, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69092208175,22sleep20-21swapper/207:06:572
68472207173,22sleep30-21swapper/307:06:093
68442204171,22sleep00-21swapper/007:06:070
70642201168,22sleep10-21swapper/107:08:561
139391750,2ptp4l391rcuc/307:55:263
744699671,25cyclictest1-21systemd11:40:231
744699671,25cyclictest1-21systemd11:40:231
7445996730,4cyclictest9-21ksoftirqd/012:40:000
744699661,23cyclictest8595-21latency_hist08:19:591
744699660,24cyclictest25574-21cat08:55:011
744699651,23cyclictest28394-21df_abs09:00:151
744699650,26cyclictest10182-21sed07:15:151
744699650,25cyclictest28943-21cut11:15:191
744699650,24cyclictest25752-21cat10:00:261
744699650,23cyclictest1541-21latency_hist08:05:011
744699641,25cyclictest17767-21sed12:00:181
744699640,25cyclictest6251-21sed09:20:181
744699640,24cyclictest8648-21cat10:35:001
744699640,24cyclictest28307-21cat07:50:271
744699640,24cyclictest17983-21cut09:45:191
744699640,23cyclictest987-21chrt12:31:211
744699640,23cyclictest987-21chrt12:31:211
744699640,23cyclictest22863-21date09:55:221
7447996333,7cyclictest33-21ksoftirqd/212:40:002
744699631,26cyclictest18866-21/usr/sbin/munin07:30:271
744699631,25cyclictest0-21swapper/111:05:201
744699631,23cyclictest28203-21timerwakeupswit10:05:251
744699630,33cyclictest2904-21awk08:05:261
744699630,24cyclictest13896-21sed09:35:261
744699630,24cyclictest13008-21chrt10:41:451
744699630,23cyclictest23120-21ptp4l12:10:221
744699620,25cyclictest1805-21cat12:35:131
744699620,24cyclictest12673-21df_abs11:50:131
744699620,22cyclictest11163-21cat08:25:001
7445996230,4cyclictest9-21ksoftirqd/010:20:140
7447996124,6cyclictest33-21ksoftirqd/207:59:592
744699610,24cyclictest21713-21date12:10:001
7445996130,10cyclictest9-21ksoftirqd/008:40:190
7445996127,4cyclictest9-21ksoftirqd/008:15:240
7445996126,4cyclictest9-21ksoftirqd/010:40:220
744699601,25cyclictest8268-21interrupts09:25:181
744699600,23cyclictest2962-21cpuspeed_turbos09:15:131
7445996028,5cyclictest9-21ksoftirqd/010:15:000
7445996026,4cyclictest9-21ksoftirqd/010:35:150
7445996025,4cyclictest9-21ksoftirqd/012:00:160
7445996022,11cyclictest9-21ksoftirqd/009:30:160
7445996022,10cyclictest9-21ksoftirqd/010:05:140
7447995927,4cyclictest33-21ksoftirqd/209:00:262
7447995927,4cyclictest33-21ksoftirqd/208:00:262
744699590,24cyclictest24171-21/usr/sbin/munin12:15:161
744699590,22cyclictest10500-21smartctl09:30:151
7445995930,5cyclictest9-21ksoftirqd/007:46:440
7445995929,11cyclictest9-21ksoftirqd/009:00:230
7445995926,4cyclictest9-21ksoftirqd/010:45:130
7445995925,4cyclictest9-21ksoftirqd/010:00:180
7445995923,5cyclictest9-21ksoftirqd/011:30:200
7447995828,3cyclictest33-21ksoftirqd/210:55:272
7447995827,3cyclictest33-21ksoftirqd/210:15:272
744699580,27cyclictest19576-21sshd08:40:191
7445995828,5cyclictest9-21ksoftirqd/008:20:070
7445995824,9cyclictest9-21ksoftirqd/009:45:130
7445995823,4cyclictest9-21ksoftirqd/012:15:180
7447995730,7cyclictest33-21ksoftirqd/211:25:272
7447995728,7cyclictest33-21ksoftirqd/210:05:002
7447995727,3cyclictest33-21ksoftirqd/211:05:222
7447995721,6cyclictest33-21ksoftirqd/209:45:132
7447995719,9cyclictest33-21ksoftirqd/211:10:192
7447995718,10cyclictest33-21ksoftirqd/211:45:162
744699571,24cyclictest24590-21df07:45:141
744699570,28cyclictest23991-21taskset07:44:241
744699570,24cyclictest10886-21/usr/sbin/munin11:45:171
744699570,23cyclictest7181-21sshd11:38:131
744699570,22cyclictest8774-21/usr/sbin/munin07:10:231
7445995729,6cyclictest9-21ksoftirqd/011:15:160
7445995726,4cyclictest9-21ksoftirqd/008:30:190
7445995726,4cyclictest9-21ksoftirqd/008:30:190
7445995725,4cyclictest9-21ksoftirqd/007:35:150
7445995719,10cyclictest9-21ksoftirqd/010:15:180
7445995626,4cyclictest9-21ksoftirqd/008:45:210
7445995625,4cyclictest9-21ksoftirqd/007:25:260
7445995625,4cyclictest9-21ksoftirqd/007:15:010
7445995624,9cyclictest9-21ksoftirqd/011:45:120
7445995623,4cyclictest9-21ksoftirqd/011:25:140
7445995623,10cyclictest9-21ksoftirqd/008:35:200
7445995623,10cyclictest9-21ksoftirqd/007:15:180
7445995621,4cyclictest9-21ksoftirqd/008:00:140
7445995621,4cyclictest9-21ksoftirqd/007:50:250
7447995526,4cyclictest33-21ksoftirqd/208:15:282
7447995523,4cyclictest33-21ksoftirqd/211:15:212
7447995522,3cyclictest33-21ksoftirqd/210:30:202
744699550,23cyclictest15999-21dpkg08:35:001
7445995524,4cyclictest9-21ksoftirqd/011:10:140
7445995523,11cyclictest9-21ksoftirqd/008:05:190
7445995520,5cyclictest9-21ksoftirqd/007:55:230
7445995518,7cyclictest9-21ksoftirqd/012:12:350
139391550,1ptp4l401ktimersoftd/308:04:093
7447995426,7cyclictest33-21ksoftirqd/209:55:212
7447995426,4cyclictest33-21ksoftirqd/207:35:142
7447995424,3cyclictest33-21ksoftirqd/207:25:192
7447995423,6cyclictest33-21ksoftirqd/208:40:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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