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2026-07-31 - 00:41
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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 Thu Jul 30, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2367021280,3sleep11369899cyclictest10:55:201
141972820,5sleep00-21swapper/011:45:140
1369999760,10cyclictest33-21ksoftirqd/208:50:502
274312690,6sleep31370099cyclictest11:05:133
13699996934,6cyclictest33-21ksoftirqd/212:35:142
13699996731,6cyclictest33-21ksoftirqd/209:30:002
134491670,6ptp4l0-21swapper/007:09:290
13699996633,7cyclictest33-21ksoftirqd/210:40:002
13699996532,4cyclictest33-21ksoftirqd/207:46:472
13699996531,7cyclictest33-21ksoftirqd/209:48:322
13699996531,6cyclictest33-21ksoftirqd/209:42:222
13699996530,4cyclictest33-21ksoftirqd/211:43:532
13699996529,4cyclictest33-21ksoftirqd/207:35:322
13697996546,4cyclictest9-21ksoftirqd/008:50:430
13699996431,4cyclictest33-21ksoftirqd/207:54:372
13699996430,6cyclictest33-21ksoftirqd/211:50:472
13699996430,6cyclictest33-21ksoftirqd/209:50:182
13699996430,3cyclictest33-21ksoftirqd/210:04:532
13699996428,5cyclictest33-21ksoftirqd/212:10:362
13699996428,5cyclictest33-21ksoftirqd/211:49:182
13699996333,8cyclictest33-21ksoftirqd/209:15:202
13699996333,7cyclictest33-21ksoftirqd/208:22:422
13699996330,6cyclictest33-21ksoftirqd/207:27:482
13699996330,4cyclictest33-21ksoftirqd/210:24:292
13699996330,4cyclictest33-21ksoftirqd/208:25:502
13699996330,4cyclictest33-21ksoftirqd/207:21:002
13699996329,5cyclictest33-21ksoftirqd/211:15:152
13699996328,5cyclictest33-21ksoftirqd/210:10:202
13699996328,4cyclictest33-21ksoftirqd/210:09:262
134491630,3ptp4l16393-21df_inode07:15:150
134491630,29ptp4l0-21swapper/207:05:012
13699996232,6cyclictest33-21ksoftirqd/207:33:202
13699996232,5cyclictest33-21ksoftirqd/208:10:252
13699996232,4cyclictest33-21ksoftirqd/211:10:192
13699996232,3cyclictest33-21ksoftirqd/211:56:082
13699996231,8cyclictest33-21ksoftirqd/208:34:292
13699996230,6cyclictest33-21ksoftirqd/210:15:272
13699996230,5cyclictest33-21ksoftirqd/212:00:292
13699996229,4cyclictest33-21ksoftirqd/210:51:012
13699996229,4cyclictest33-21ksoftirqd/208:05:362
13699996229,3cyclictest33-21ksoftirqd/210:57:152
13699996132,6cyclictest33-21ksoftirqd/209:55:172
13699996131,6cyclictest33-21ksoftirqd/210:30:232
13699996129,6cyclictest33-21ksoftirqd/212:05:172
13699996129,4cyclictest33-21ksoftirqd/208:18:242
13699996129,4cyclictest33-21ksoftirqd/207:40:262
13699996127,4cyclictest33-21ksoftirqd/210:46:562
13699996127,3cyclictest33-21ksoftirqd/209:06:302
13699996127,3cyclictest33-21ksoftirqd/208:35:272
1369899614,16cyclictest3597-21grep11:20:261
13699996033,7cyclictest33-21ksoftirqd/212:35:002
13699996030,3cyclictest33-21ksoftirqd/211:38:592
13699996030,3cyclictest33-21ksoftirqd/211:29:162
13699996029,6cyclictest33-21ksoftirqd/209:20:202
13699996029,5cyclictest33-21ksoftirqd/207:18:482
13699996028,5cyclictest33-21ksoftirqd/208:40:192
13699996028,4cyclictest33-21ksoftirqd/208:00:592
13699996027,6cyclictest33-21ksoftirqd/211:05:182
13699996026,5cyclictest33-21ksoftirqd/208:55:152
13699996025,4cyclictest33-21ksoftirqd/211:22:582
13699996023,4cyclictest33-21ksoftirqd/212:20:122
134491600,3ptp4l0-21swapper/007:45:170
134491600,3ptp4l0-21swapper/007:25:010
13699995927,7cyclictest33-21ksoftirqd/212:17:182
13699995926,3cyclictest33-21ksoftirqd/208:45:292
13699995923,4cyclictest33-21ksoftirqd/209:15:002
1369899594,9cyclictest0-21swapper/108:50:201
134491590,9ptp4l0-21swapper/010:22:540
134491590,4ptp4l0-21swapper/010:53:240
134491590,3ptp4l6931-21fschecks_count11:30:163
1369999584,7cyclictest33-21ksoftirqd/209:36:112
13699995827,3cyclictest33-21ksoftirqd/209:32:352
134491580,4ptp4l0-21swapper/010:25:430
13699995726,8cyclictest33-21ksoftirqd/212:25:142
1369899577,6cyclictest757-21polkitd09:23:451
13699995628,6cyclictest33-21ksoftirqd/211:30:162
13699995626,7cyclictest33-21ksoftirqd/210:40:172
1369899563,19cyclictest21139-21if_enp1s012:00:171
1369899563,12cyclictest4298-21cat12:35:001
1369899562,12cyclictest382-21avahi-daemon10:20:251
1369899562,11cyclictest23716-21cut07:30:181
134491560,4ptp4l0-21swapper/007:51:390
134491560,3ptp4l0-21swapper/012:30:000
13699995525,5cyclictest33-21ksoftirqd/209:00:222
13699995523,3cyclictest33-21ksoftirqd/211:00:152
1369999545,5cyclictest33-21ksoftirqd/210:30:002
13699995425,3cyclictest33-21ksoftirqd/207:59:362
1369899546,6cyclictest18992-21irqrtprio07:20:181
1369899543,11cyclictest25627-21fschecks_time12:10:161
134491540,4ptp4l0-21swapper/007:43:540
134491540,3ptp4l0-21swapper/112:16:341
134491540,12ptp4l0-21swapper/007:35:150
1369899534,7cyclictest18285-21latency_hist07:20:001
1369899534,6cyclictest747-21missed_timers07:50:191
1369899530,10cyclictest25582-21df_abs07:35:141
1369899530,10cyclictest0-21swapper/112:25:111
134491530,4ptp4l0-21swapper/010:18:420
134491530,4ptp4l0-21swapper/008:32:130
134491530,4ptp4l0-21swapper/008:25:260
134491530,2ptp4l0-21swapper/009:05:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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