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2025-12-27 - 03:51
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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 Sat Dec 27, 2025 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491710,4ptp4l0-21swapper/121:07:251
134491700,3ptp4l21882-21users20:45:281
134491640,5ptp4l0-21swapper/119:45:171
134491630,2ptp4l17509-21mandb00:05:242
134491630,2ptp4l17509-21mandb00:05:232
850299607,7cyclictest0-21swapper/322:10:173
134491600,4ptp4l16470-21cut21:45:181
134491600,3ptp4l0-21swapper/322:25:173
850299596,7cyclictest0-21swapper/319:40:173
850299596,7cyclictest0-21swapper/319:40:173
8499995927,3cyclictest9-21ksoftirqd/021:34:590
134491590,3ptp4l0-21swapper/319:35:173
134491580,3ptp4l0-21swapper/323:02:013
134491580,15ptp4l0-21swapper/221:20:212
850299578,6cyclictest0-21swapper/300:20:273
134491570,4ptp4l0-21swapper/323:26:253
134491570,3ptp4l33-21ksoftirqd/222:30:232
134491570,16ptp4l6733-21iostat_ios19:05:172
850299568,12cyclictest0-21swapper/321:20:123
8499995626,4cyclictest9-21ksoftirqd/022:50:000
134491560,4ptp4l0-21swapper/221:52:552
134491560,4ptp4l0-21swapper/220:46:172
134491560,4ptp4l0-21swapper/220:29:102
134491560,3ptp4l0-21swapper/021:05:200
850299556,7cyclictest0-21swapper/320:55:273
850299556,6cyclictest0-21swapper/322:45:303
134491550,4ptp4l0-21swapper/020:56:540
850299547,6cyclictest0-21swapper/320:35:473
850299546,6cyclictest0-21swapper/320:25:173
8499995422,4cyclictest9-21ksoftirqd/019:40:130
8499995422,4cyclictest9-21ksoftirqd/019:40:130
8499995421,6cyclictest9-21ksoftirqd/022:52:240
134491540,4ptp4l0-21swapper/221:11:172
134491540,4ptp4l0-21swapper/120:20:291
134491540,4ptp4l0-21swapper/023:38:160
134491540,4ptp4l0-21swapper/000:37:280
850299535,12cyclictest0-21swapper/321:31:523
850299535,10cyclictest0-21swapper/320:10:223
850299535,10cyclictest0-21swapper/320:10:223
850299532,10cyclictest2318-21gnome-shell21:00:253
8499995322,3cyclictest9-21ksoftirqd/020:39:590
8499995313,7cyclictest9-21ksoftirqd/019:55:230
134491530,4ptp4l0-21swapper/219:56:042
134491530,4ptp4l0-21swapper/219:53:082
134491530,4ptp4l0-21swapper/121:38:491
134491530,4ptp4l0-21swapper/023:40:490
134491530,4ptp4l0-21swapper/020:07:560
134491530,3ptp4l0-21swapper/219:25:152
850299526,6cyclictest0-21swapper/323:55:123
850299526,6cyclictest0-21swapper/323:50:263
850299522,6cyclictest41-21ksoftirqd/300:15:243
134491520,5ptp4l0-21swapper/019:35:260
134491520,4ptp4l0-21swapper/220:15:502
134491520,3ptp4l0-21swapper/120:05:161
134491520,3ptp4l0-21swapper/120:00:261
850299518,6cyclictest0-21swapper/320:45:183
850299517,6cyclictest0-21swapper/323:05:593
850299515,6cyclictest0-21swapper/319:55:173
8499995124,3cyclictest9-21ksoftirqd/022:29:350
8499995123,3cyclictest9-21ksoftirqd/000:21:310
8499995121,3cyclictest9-21ksoftirqd/023:23:470
8499995120,3cyclictest9-21ksoftirqd/021:10:230
134491510,4ptp4l0-21swapper/200:32:062
134491510,12ptp4l0-21swapper/219:32:542
850299508,6cyclictest0-21swapper/319:15:213
850299506,6cyclictest0-21swapper/321:45:273
850299502,6cyclictest4843-21awk23:40:133
8499995019,7cyclictest9-21ksoftirqd/019:25:000
8499995019,4cyclictest9-21ksoftirqd/021:47:230
8499995019,4cyclictest9-21ksoftirqd/020:30:280
134491500,5ptp4l0-21swapper/022:05:390
134491500,4ptp4l0-21swapper/322:53:313
134491500,4ptp4l0-21swapper/220:00:322
134491500,4ptp4l0-21swapper/200:38:402
134491500,4ptp4l0-21swapper/200:21:592
134491500,4ptp4l0-21swapper/123:26:591
134491500,4ptp4l0-21swapper/122:52:011
134491500,4ptp4l0-21swapper/023:03:400
134491500,3ptp4l0-21swapper/122:21:201
134491500,3ptp4l0-21swapper/021:23:540
850299497,7cyclictest0-21swapper/319:30:213
850299497,6cyclictest0-21swapper/300:32:373
8499994922,4cyclictest9-21ksoftirqd/000:19:530
8499994922,3cyclictest9-21ksoftirqd/021:38:400
8499994922,3cyclictest9-21ksoftirqd/019:19:480
8499994921,3cyclictest9-21ksoftirqd/020:45:000
8499994917,4cyclictest9-21ksoftirqd/022:02:500
8499994917,3cyclictest9-21ksoftirqd/020:17:010
134491490,4ptp4l0-21swapper/222:48:222
134491490,4ptp4l0-21swapper/121:03:351
134491490,4ptp4l0-21swapper/023:47:580
134491490,4ptp4l0-21swapper/023:17:020
134491490,4ptp4l0-21swapper/022:12:220
134491490,4ptp4l0-21swapper/021:17:490
134491490,4ptp4l0-21swapper/021:03:200
134491490,10ptp4l0-21swapper/223:08:542
850299489,7cyclictest0-21swapper/319:45:183
850299482,12cyclictest0-21swapper/321:51:343
8499994819,3cyclictest9-21ksoftirqd/022:15:150
8499994818,3cyclictest9-21ksoftirqd/020:41:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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