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2025-12-30 - 23:43
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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 rackdslot1.osadl.org (updated Tue Dec 30, 2025 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2622621770,5sleep01116999cyclictest12:20:010
1263721450,3sleep31117299cyclictest08:20:193
185112780,7sleep11117099cyclictest07:25:131
11171997033,8cyclictest33-21ksoftirqd/210:00:002
11171997033,8cyclictest33-21ksoftirqd/209:59:592
11171996731,6cyclictest33-21ksoftirqd/208:55:262
11171996633,9cyclictest33-21ksoftirqd/208:14:592
11171996532,5cyclictest33-21ksoftirqd/208:04:592
11171996528,8cyclictest33-21ksoftirqd/211:15:012
11171996434,7cyclictest33-21ksoftirqd/209:24:592
11171996427,6cyclictest33-21ksoftirqd/209:54:592
11171996425,5cyclictest33-21ksoftirqd/207:50:212
134491630,4ptp4l0-21swapper/310:00:213
11171996330,5cyclictest33-21ksoftirqd/211:20:162
11171996329,7cyclictest33-21ksoftirqd/208:05:242
1116999637,26cyclictest2007-21seq07:57:370
1116999632,27cyclictest0-21swapper/009:08:430
1116999631,26cyclictest20632-21taskset10:57:440
1116999630,60cyclictest19640-21memory08:35:230
11171996231,5cyclictest33-21ksoftirqd/208:30:192
11171996230,6cyclictest33-21ksoftirqd/208:20:152
11171996229,5cyclictest33-21ksoftirqd/211:10:012
11171996227,8cyclictest33-21ksoftirqd/209:00:442
11171996226,6cyclictest33-21ksoftirqd/208:40:262
1116999621,30cyclictest11512-21seq10:38:480
1116999620,58cyclictest29397-21/usr/sbin/munin10:05:280
1116999620,31cyclictest18316-21seq08:33:360
134491610,2ptp4l0-21swapper/007:06:200
11171996132,6cyclictest33-21ksoftirqd/210:55:212
11171996131,5cyclictest33-21ksoftirqd/208:50:162
11171996131,5cyclictest33-21ksoftirqd/208:50:162
11171996130,4cyclictest33-21ksoftirqd/212:10:282
11171996129,6cyclictest33-21ksoftirqd/208:15:152
11171996128,6cyclictest33-21ksoftirqd/209:30:172
11171996127,5cyclictest33-21ksoftirqd/212:04:592
11171996123,6cyclictest33-21ksoftirqd/210:05:182
11171996123,6cyclictest33-21ksoftirqd/207:30:272
11171996123,6cyclictest33-21ksoftirqd/207:30:262
1116999611,30cyclictest15216-21seq07:15:580
1116999610,31cyclictest25189-21seq11:07:010
1116999610,30cyclictest9132-21seq11:43:270
134491600,4ptp4l0-21swapper/111:00:181
11171996032,5cyclictest33-21ksoftirqd/211:30:282
11171996031,5cyclictest33-21ksoftirqd/211:40:212
11171996029,5cyclictest33-21ksoftirqd/208:35:212
11171996028,5cyclictest33-21ksoftirqd/207:45:162
11171996024,5cyclictest33-21ksoftirqd/212:15:212
11171996022,6cyclictest33-21ksoftirqd/212:30:262
1116999602,26cyclictest0-21swapper/012:07:540
1116999601,29cyclictest332-21seq12:33:370
1116999600,30cyclictest25185-21seq08:48:080
134491590,4ptp4l0-21swapper/212:35:222
134491590,4ptp4l0-21swapper/107:15:221
134491590,4ptp4l0-21swapper/009:56:380
134491590,4ptp4l0-21swapper/009:56:370
11171995933,3cyclictest33-21ksoftirqd/210:05:012
11171995930,3cyclictest33-21ksoftirqd/210:15:012
11171995929,6cyclictest33-21ksoftirqd/211:50:162
1116999590,31cyclictest9212-21seq10:33:510
11171995833,6cyclictest33-21ksoftirqd/212:20:202
11171995829,6cyclictest33-21ksoftirqd/207:40:212
11171995827,4cyclictest33-21ksoftirqd/211:35:272
11171995826,6cyclictest33-21ksoftirqd/208:25:252
11171995825,8cyclictest33-21ksoftirqd/211:55:152
11171995822,4cyclictest33-21ksoftirqd/207:15:212
1116999582,28cyclictest23196-21seq12:11:180
1116999582,26cyclictest0-21swapper/010:29:270
1116999581,30cyclictest32153-21seq11:22:400
1116999580,30cyclictest2650-21seq12:37:190
1116999580,29cyclictest15930-21taskset11:57:100
1116999580,26cyclictest4383-21seq09:13:400
134491570,4ptp4l0-21swapper/311:19:453
1117199575,7cyclictest33-21ksoftirqd/210:40:012
11171995730,9cyclictest33-21ksoftirqd/211:25:282
11171995727,3cyclictest33-21ksoftirqd/210:47:032
1116999570,3cyclictest22369-21switchtime08:40:270
1116999570,31cyclictest22436-21seq07:32:100
1116999570,31cyclictest22436-21seq07:32:090
1116999570,29cyclictest25734-21seq12:19:240
11171995630,6cyclictest33-21ksoftirqd/212:05:152
11171995625,3cyclictest33-21ksoftirqd/209:45:202
11171995624,6cyclictest33-21ksoftirqd/209:35:222
11171995622,6cyclictest33-21ksoftirqd/209:15:142
1116999562,23cyclictest0-21swapper/009:15:530
1116999561,25cyclictest1317-21runrttasks09:37:100
1116999560,30cyclictest4346-21seq11:31:560
11171995526,3cyclictest33-21ksoftirqd/210:15:132
242252540,4sleep30-21swapper/309:55:193
242252540,4sleep30-21swapper/309:55:193
134491540,3ptp4l0-21swapper/312:35:293
134491540,13ptp4l0-21swapper/109:30:501
134491540,12ptp4l0-21swapper/311:40:483
11171995442,4cyclictest33-21ksoftirqd/210:45:012
11171995424,5cyclictest33-21ksoftirqd/209:10:182
1116999542,25cyclictest0-21swapper/011:19:160
1116999540,27cyclictest13796-21taskset10:43:240
134491530,4ptp4l0-21swapper/310:53:093
134491530,4ptp4l0-21swapper/309:47:263
134491530,4ptp4l0-21swapper/308:29:093
134491530,3ptp4l0-21swapper/311:35:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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