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2025-12-16 - 06:41
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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 highest latencies:
System rackdslot1.osadl.org (updated Tue Dec 16, 2025 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
723121760,7sleep31673699cyclictest23:25:503
238852930,3sleep223886-21latency_hist21:45:002
16735997735,9cyclictest33-21ksoftirqd/221:05:002
16735996832,5cyclictest33-21ksoftirqd/219:40:002
16735996832,5cyclictest33-21ksoftirqd/219:40:002
16735996628,4cyclictest33-21ksoftirqd/219:30:002
16735996532,15cyclictest33-21ksoftirqd/220:45:522
16735996529,5cyclictest33-21ksoftirqd/221:40:002
16735996529,4cyclictest33-21ksoftirqd/222:15:012
16735996433,4cyclictest33-21ksoftirqd/200:20:582
16735996432,7cyclictest33-21ksoftirqd/219:55:002
16735996432,4cyclictest33-21ksoftirqd/220:15:392
16735996432,4cyclictest33-21ksoftirqd/220:15:392
16735996431,7cyclictest33-21ksoftirqd/221:25:002
16735996431,4cyclictest33-21ksoftirqd/222:00:402
16735996425,7cyclictest33-21ksoftirqd/222:50:002
16736996315,13cyclictest7470-21ls22:15:533
16735996332,6cyclictest33-21ksoftirqd/220:30:012
16735996331,8cyclictest33-21ksoftirqd/219:50:002
16735996331,5cyclictest33-21ksoftirqd/222:34:592
16735996331,4cyclictest33-21ksoftirqd/221:50:002
16735996232,5cyclictest33-21ksoftirqd/221:55:012
16735996231,4cyclictest33-21ksoftirqd/223:50:412
16735996227,6cyclictest33-21ksoftirqd/219:55:382
16735996227,4cyclictest33-21ksoftirqd/221:10:452
16735996227,4cyclictest33-21ksoftirqd/220:40:532
16735996225,6cyclictest33-21ksoftirqd/223:50:002
323032610,3sleep00-21swapper/020:50:500
16735996134,7cyclictest33-21ksoftirqd/220:40:012
16735996131,3cyclictest33-21ksoftirqd/221:15:432
16735996130,4cyclictest33-21ksoftirqd/200:15:562
16735996129,6cyclictest33-21ksoftirqd/223:00:452
16735996129,6cyclictest33-21ksoftirqd/221:00:002
16735996129,4cyclictest33-21ksoftirqd/200:00:002
16735996129,3cyclictest33-21ksoftirqd/219:10:412
16735996127,6cyclictest33-21ksoftirqd/220:30:432
16735996126,7cyclictest33-21ksoftirqd/219:15:442
16735996126,6cyclictest33-21ksoftirqd/223:10:392
16735996125,6cyclictest33-21ksoftirqd/222:25:012
16735996125,4cyclictest33-21ksoftirqd/223:30:412
16735996031,5cyclictest33-21ksoftirqd/221:55:532
16735996031,5cyclictest33-21ksoftirqd/221:55:532
16735996029,5cyclictest33-21ksoftirqd/223:35:462
16735996028,4cyclictest33-21ksoftirqd/222:15:542
16735996028,10cyclictest33-21ksoftirqd/220:20:402
16735996027,5cyclictest33-21ksoftirqd/200:04:592
16735996025,6cyclictest33-21ksoftirqd/220:00:442
16735996025,5cyclictest33-21ksoftirqd/200:30:012
16735996023,4cyclictest33-21ksoftirqd/219:20:412
16735996010,3cyclictest33-21ksoftirqd/200:39:592
134491600,4ptp4l0-21swapper/019:53:120
16735995931,7cyclictest33-21ksoftirqd/222:05:452
16735995931,7cyclictest33-21ksoftirqd/222:05:452
16735995928,4cyclictest33-21ksoftirqd/223:15:572
16735995928,4cyclictest33-21ksoftirqd/221:25:442
16735995922,4cyclictest33-21ksoftirqd/222:40:472
134491590,4ptp4l0-21swapper/023:58:570
1673699585,11cyclictest3089-21taskset19:50:193
16735995828,6cyclictest33-21ksoftirqd/220:50:412
16735995828,13cyclictest33-21ksoftirqd/221:05:442
16735995827,5cyclictest33-21ksoftirqd/223:40:542
16735995827,5cyclictest33-21ksoftirqd/222:50:442
16735995827,5cyclictest33-21ksoftirqd/222:50:442
16735995826,3cyclictest33-21ksoftirqd/219:30:442
16735995826,11cyclictest33-21ksoftirqd/222:30:002
16735995822,5cyclictest33-21ksoftirqd/223:20:442
1673699570,11cyclictest448-21dbus-daemon21:45:503
16735995729,6cyclictest33-21ksoftirqd/220:05:412
16735995726,5cyclictest33-21ksoftirqd/223:00:012
16735995725,5cyclictest33-21ksoftirqd/220:10:452
16735995725,5cyclictest33-21ksoftirqd/200:30:452
16735995725,4cyclictest33-21ksoftirqd/223:05:432
16735995723,5cyclictest33-21ksoftirqd/223:30:002
134491570,4ptp4l0-21swapper/020:38:400
1673699560,12cyclictest21609-21cat23:55:543
16735995625,5cyclictest33-21ksoftirqd/222:35:402
16735995622,4cyclictest33-21ksoftirqd/219:40:482
134491560,5ptp4l0-21swapper/022:27:470
134491560,4ptp4l0-21swapper/200:09:262
134491560,4ptp4l0-21swapper/023:25:000
134491560,3ptp4l0-21swapper/320:35:453
1673699550,11cyclictest17416-21latency_hist22:40:003
1673699540,12cyclictest8429-21taskset00:39:223
1673699540,12cyclictest30564-21taskset20:47:553
1673699540,12cyclictest28174-21taskset19:33:373
1673699540,12cyclictest16684-21taskset21:28:033
1673699532,9cyclictest0-21swapper/322:00:453
1673699530,16cyclictest12635-21chrt22:27:493
1673699530,12cyclictest19551-21taskset23:51:073
1673699530,11cyclictest16649-21awk23:45:483
16735995322,6cyclictest33-21ksoftirqd/221:35:012
1673499531,31cyclictest739-21chrt19:45:371
16736995212,9cyclictest28701-21switchtime00:10:533
1673699520,15cyclictest5672-21ls00:30:513
1673699520,12cyclictest30926-21taskset21:57:393
1673699520,12cyclictest30926-21taskset21:57:393
1673699520,12cyclictest21201-21taskset21:37:093
1673699520,11cyclictest28605-21latency_hist20:45:003
16735995222,4cyclictest33-21ksoftirqd/200:10:552
1673499521,49cyclictest19025-21kworker/1:000:09:011
16736995115,9cyclictest19052-21taskset19:15:183
1673699510,17cyclictest24344-21taskset22:54:403
1673699510,17cyclictest24344-21taskset22:54:403
1673699510,12cyclictest933-21taskset23:12:173
1673699510,12cyclictest10463-21taskset22:24:233
1673699510,11cyclictest23489-21taskset21:41:033
1673699510,11cyclictest1313-21taskset00:22:283
1673699510,10cyclictest12493-21taskset21:20:213
1673399512,1cyclictest0-21swapper/022:35:520
1673699500,8cyclictest134491ptp4l19:25:503
1673699500,14cyclictest28751-21taskset23:02:083
1673699500,12cyclictest31041-21taskset23:07:033
1673699500,12cyclictest2555-21runrttasks19:46:253
1673699500,11cyclictest21797-21/usr/sbin/munin20:30:513
1673699500,11cyclictest14955-21taskset22:33:063
134491500,4ptp4l0-21swapper/319:05:033
1673699491,10cyclictest0-21swapper/300:15:443
1673699490,9cyclictest15744-21wc20:15:443
1673699490,9cyclictest15744-21wc20:15:443
1673699490,14cyclictest30832-21runrttasks19:40:103
1673699490,10cyclictest14877-21unixbench_singl23:40:553
1673699480,11cyclictest7391-21runrttasks19:56:493
134491480,13ptp4l0-21swapper/100:20:421
1673699470,10cyclictest18037-21cut20:20:443
134491470,5ptp4l0-21swapper/219:05:382
134491470,3ptp4l0-21swapper/020:26:100
134491470,12ptp4l0-21swapper/021:55:510
134491470,12ptp4l0-21swapper/021:55:510
16736994612,11cyclictest9773-21taskset20:02:333
1673499462,42cyclictest27258-21kworker/1:200:11:011
134491460,5ptp4l0-21swapper/319:10:013
134491460,12ptp4l0-21swapper/021:00:450
1673699450,10cyclictest5810-21chrt23:24:333
1673699450,10cyclictest19033-21taskset21:33:423
134491450,10ptp4l0-21swapper/021:49:110
134491450,10ptp4l0-21swapper/019:34:050
1673699440,8cyclictest28565-21apt-get19:35:373
1673699440,8cyclictest28565-21apt-get19:35:373
1673699440,17cyclictest2318-21gnome-shell21:08:593
1673699440,11cyclictest3678-21dpkg22:10:403
134491440,9ptp4l25-21ksoftirqd/122:20:441
134491440,9ptp4l0-21swapper/023:26:510
134491440,5ptp4l0-21swapper/319:20:483
134491440,10ptp4l0-21swapper/022:03:030
134491440,10ptp4l0-21swapper/019:38:320
134491440,10ptp4l0-21swapper/019:38:320
1673699430,17cyclictest11178-21cat20:05:453
1673699430,12cyclictest9307-21ssh21:10:543
134491430,9ptp4l0-21swapper/021:38:370
134491430,9ptp4l0-21swapper/020:44:440
134491430,9ptp4l0-21swapper/000:31:290
134491430,9ptp4l0-21swapper/000:21:570
134491430,9ptp4l0-21swapper/000:18:160
134491430,9ptp4l0-21swapper/000:03:210
134491430,5ptp4l0-21swapper/021:05:450
134491430,4ptp4l23763-21apt-get19:25:380
134491430,10ptp4l0-21swapper/020:02:220
1673499420,3cyclictest6246-21df_abs22:15:411
134491420,9ptp4l0-21swapper/023:01:470
134491420,9ptp4l0-21swapper/020:17:570
134491420,9ptp4l0-21swapper/020:17:570
134491420,5ptp4l26317-21apt-get21:50:003
134491420,5ptp4l0-21swapper/023:05:440
134491420,5ptp4l0-21swapper/022:40:450
134491420,5ptp4l0-21swapper/000:35:430
134491420,4ptp4l21795-21apt-get21:40:380
134491420,3ptp4l8430-21apt-get23:30:390
134491420,10ptp4l0-21swapper/000:08:140
1673699410,9cyclictest30962-21taskset20:50:093
1673699410,10cyclictest33582sleep322:09:403
1673699410,10cyclictest33582sleep322:09:393
1673699410,10cyclictest24429-21chrt00:03:443
134491410,9ptp4l0-21swapper/021:24:490
134491410,9ptp4l0-21swapper/019:22:190
134491410,5ptp4l0-21swapper/020:55:440
134491410,5ptp4l0-21swapper/020:20:470
134491410,5ptp4l0-21swapper/019:50:000
134491410,4ptp4l25775-21ntp_states22:55:523
134491410,4ptp4l22375-21iostat20:30:431
134491410,4ptp4l20966-21memory22:45:470
134491410,4ptp4l13888-21python20:10:531
134491410,4ptp4l0-21swapper/323:35:433
134491410,4ptp4l0-21swapper/321:00:413
134491410,4ptp4l0-21swapper/300:09:553
134491410,4ptp4l0-21swapper/023:35:410
134491410,4ptp4l0-21swapper/020:45:460
134491410,4ptp4l0-21swapper/019:10:470
134491410,11ptp4l0-21swapper/022:14:250
16736994011,13cyclictest0-21swapper/322:43:163
1673699400,10cyclictest21161-21chrt20:26:063
134491400,9ptp4l0-21swapper/020:31:140
134491400,5ptp4l0-21swapper/323:30:413
134491400,5ptp4l0-21swapper/121:00:511
134491400,5ptp4l0-21swapper/023:10:420
134491400,5ptp4l0-21swapper/000:10:410
134491400,4ptp4l13660-21ntp_states20:10:503
134491400,4ptp4l0-21swapper/122:04:511
134491400,4ptp4l0-21swapper/121:40:561
134491400,4ptp4l0-21swapper/119:10:531
134491400,4ptp4l0-21swapper/023:54:010
134491400,4ptp4l0-21swapper/023:48:370
134491400,4ptp4l0-21swapper/019:56:340
134491400,4ptp4l0-21swapper/019:16:010
134491400,4ptp4l0-21swapper/000:29:300
1673499391,3cyclictest19650-21sshd23:52:221
134491390,5ptp4l0-21swapper/121:10:401
134491390,5ptp4l0-21swapper/119:41:131
134491390,5ptp4l0-21swapper/100:04:481
134491390,5ptp4l0-21swapper/022:30:410
134491390,4ptp4l4102-21hddtemp_smartct22:10:431
134491390,4ptp4l30414-21/usr/sbin/munin21:55:511
134491390,4ptp4l30414-21/usr/sbin/munin21:55:511
134491390,4ptp4l0-21swapper/322:45:543
134491390,4ptp4l0-21swapper/320:55:453
134491390,4ptp4l0-21swapper/300:25:533
134491390,4ptp4l0-21swapper/122:30:471
134491390,4ptp4l0-21swapper/121:30:411
134491390,4ptp4l0-21swapper/120:16:211
134491390,4ptp4l0-21swapper/120:16:211
134491390,4ptp4l0-21swapper/119:55:491
134491390,4ptp4l0-21swapper/119:32:291
134491390,4ptp4l0-21swapper/100:25:411
134491390,4ptp4l0-21swapper/023:42:090
134491390,4ptp4l0-21swapper/023:18:210
134491390,4ptp4l0-21swapper/021:51:570
134491390,4ptp4l0-21swapper/021:30:390
134491390,4ptp4l0-21swapper/021:15:390
134491390,4ptp4l0-21swapper/019:41:190
134491390,3ptp4l20222-21ntp_states19:15:561
134491390,3ptp4l12968-21fschecks_time20:10:430
134491390,3ptp4l0-21swapper/021:25:460
16734993833,3cyclictest25-21ksoftirqd/122:35:381
16734993832,4cyclictest25-21ksoftirqd/121:17:151
1673499380,36cyclictest17310-21tr20:20:391
134491380,5ptp4l0-21swapper/022:05:200
134491380,5ptp4l0-21swapper/022:05:200
134491380,5ptp4l0-21swapper/020:05:410
134491380,4ptp4l0-21swapper/323:15:593
134491380,4ptp4l0-21swapper/321:15:093
134491380,4ptp4l0-21swapper/123:40:521
134491380,4ptp4l0-21swapper/123:09:381
134491380,4ptp4l0-21swapper/122:45:391
134491380,4ptp4l0-21swapper/122:05:481
134491380,4ptp4l0-21swapper/122:05:481
134491380,4ptp4l0-21swapper/121:30:011
134491380,4ptp4l0-21swapper/120:27:011
134491380,4ptp4l0-21swapper/120:04:531
134491380,4ptp4l0-21swapper/119:50:481
134491380,4ptp4l0-21swapper/119:37:271
134491380,4ptp4l0-21swapper/119:37:271
134491380,4ptp4l0-21swapper/100:30:391
134491380,4ptp4l0-21swapper/022:55:380
134491380,4ptp4l0-21swapper/022:51:070
134491380,4ptp4l0-21swapper/022:51:070
134491380,4ptp4l0-21swapper/022:24:250
134491380,4ptp4l0-21swapper/022:15:150
134491380,4ptp4l0-21swapper/021:11:360
134491380,3ptp4l0-21swapper/121:20:511
134491380,3ptp4l0-21swapper/120:06:351
134491370,4ptp4l0-21swapper/123:59:391
134491370,4ptp4l0-21swapper/123:00:501
134491370,4ptp4l0-21swapper/121:37:041
134491370,4ptp4l0-21swapper/120:50:321
134491370,4ptp4l0-21swapper/120:45:001
134491370,4ptp4l0-21swapper/120:40:031
134491370,3ptp4l0-21swapper/122:27:491
134491370,3ptp4l0-21swapper/119:25:411
134491370,3ptp4l0-21swapper/100:38:471
16734993631,3cyclictest25-21ksoftirqd/121:50:371
134491360,4ptp4l0-21swapper/123:13:501
134491360,4ptp4l0-21swapper/120:36:291
134491360,4ptp4l0-21swapper/119:20:411
134491360,3ptp4l0-21swapper/123:34:431
134491360,3ptp4l0-21swapper/123:26:591
134491360,3ptp4l0-21swapper/123:20:091
134491360,3ptp4l0-21swapper/122:43:551
134491350,4ptp4l0-21swapper/120:56:531
134491350,3ptp4l0-21swapper/121:05:531
134491340,3ptp4l0-21swapper/122:58:371
134491340,3ptp4l0-21swapper/100:16:221
16734993327,4cyclictest25-21ksoftirqd/123:39:591
16734993327,4cyclictest25-21ksoftirqd/123:18:091
134491330,4ptp4l0-21swapper/121:45:311
158532320,7sleep11673499cyclictest23:45:411
16734993127,3cyclictest25-21ksoftirqd/122:52:271
16734993127,3cyclictest25-21ksoftirqd/122:52:271
1378912924,2phc2sys0-21swapper/119:08:371
146242213,11sleep014734-21df_inode19:05:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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