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2025-11-25 - 09:13
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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 all highest latencies:
System rackdslot1.osadl.org (updated Tue Nov 25, 2025 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1962321760,5sleep31360299cyclictest22:50:163
1877321560,4sleep31360299cyclictest21:40:013
2111821430,7sleep21360199cyclictest19:25:162
137112710,4sleep30-21swapper/322:35:293
2847191680,4ptp4l20426-21chrt20:31:490
2847191680,4ptp4l20426-21chrt20:31:490
2847191650,6ptp4l0-21swapper/119:07:411
1360299652,60cyclictest0-21swapper/319:45:233
1360299641,28cyclictest1778-21gnome-shell21:57:593
1360299641,26cyclictest20948-21taskset21:43:453
1360299631,29cyclictest1778-21gnome-shell19:32:583
2847191620,17ptp4l7825-21hddtemp_smartct21:15:170
150102620,6sleep21360199cyclictest23:50:012
1360299620,26cyclictest1293-21snmpd00:11:593
1360299610,26cyclictest29763-21taskset19:44:213
1360299610,25cyclictest18649-21taskset22:47:213
1360299600,27cyclictest4643-21taskset21:07:453
1360299600,26cyclictest2564-21taskset22:14:013
1360299600,26cyclictest1819-21taskset19:51:143
226352590,3sleep222639-21fschecks_time00:05:172
1360299591,28cyclictest1778-21gnome-shell23:05:583
1360299590,26cyclictest7787-21taskset23:34:153
1360299590,26cyclictest4613-21taskset22:15:463
1360299590,26cyclictest18347-21taskset20:29:433
1360299590,26cyclictest14597-21taskset23:47:283
1360299590,24cyclictest1464-21taskset00:28:443
1360299590,24cyclictest1464-21taskset00:28:443
13601995927,4cyclictest33-21ksoftirqd/200:00:202
2847191580,5ptp4l0-21swapper/000:27:560
2847191580,5ptp4l0-21swapper/000:27:550
2847191580,4ptp4l0-21swapper/320:31:263
2847191580,4ptp4l0-21swapper/320:31:263
1360299581,29cyclictest1778-21gnome-shell19:26:583
1360299581,27cyclictest8965-21seq20:08:193
1360299581,27cyclictest1778-21gnome-shell23:29:583
1360299581,26cyclictest3002-21taskset23:22:163
1360299581,26cyclictest3002-21taskset23:22:163
1360299581,23cyclictest1428-21mactelnetd20:11:503
1360299580,27cyclictest31476-21seq00:22:483
1360299580,27cyclictest19083-21seq23:55:443
1360299580,26cyclictest30629-21taskset23:14:343
1360299580,16cyclictest2847191ptp4l22:28:223
1360299571,29cyclictest1778-21gnome-shell21:25:593
1360299571,24cyclictest27359-21seq19:38:293
1360299570,26cyclictest32424-21seq22:07:343
13601995728,5cyclictest33-21ksoftirqd/220:25:142
2847191560,4ptp4l0-21swapper/321:33:403
2847191560,4ptp4l0-21swapper/221:29:082
2847191560,3ptp4l0-21swapper/300:15:163
2847191560,3ptp4l0-21swapper/122:45:161
2847191560,12ptp4l0-21swapper/020:05:010
1360299561,25cyclictest30277-21taskset22:04:313
2847191550,3ptp4l0-21swapper/019:05:180
234372540,7sleep21360199cyclictest19:30:182
1360299540,18cyclictest23877-21ls23:00:153
1360199542,35cyclictest0-21swapper/200:11:582
1360199542,24cyclictest0-21swapper/223:30:272
2847191530,4ptp4l0-21swapper/200:22:022
1360299531,27cyclictest1778-21gnome-shell19:22:583
2847191520,3ptp4l0-21swapper/219:39:422
1360299520,22cyclictest22258-21mailstats20:35:263
1360199521,11cyclictest0-21swapper/220:09:112
2847191510,4ptp4l0-21swapper/221:42:232
1360199514,10cyclictest33-21ksoftirqd/221:10:172
1360199512,21cyclictest0-21swapper/221:00:242
2847191500,3ptp4l0-21swapper/221:30:472
1360299501,19cyclictest2847191ptp4l20:50:243
1360299500,23cyclictest9815-21chrt23:35:463
1360199502,7cyclictest0-21swapper/222:41:592
2847191490,3ptp4l0-21swapper/223:28:452
1360299491,28cyclictest1778-21gnome-shell22:21:593
1360299490,26cyclictest2511-21seq21:04:593
1360199495,8cyclictest33-21ksoftirqd/221:35:292
1360199493,5cyclictest0-21swapper/200:15:182
1360199490,9cyclictest33-21ksoftirqd/200:30:262
1360199490,8cyclictest17122-21latency_hist23:55:002
1360199490,3cyclictest2847191ptp4l19:25:012
1360099498,39cyclictest19558-21kworker/1:220:29:291
13600994910,37cyclictest25572-21kworker/1:123:44:301
2847191480,4ptp4l0-21swapper/222:24:002
2847191480,1ptp4l0-21swapper/023:04:030
1360299483,23cyclictest0-21swapper/322:56:023
1360299483,22cyclictest0-21swapper/322:43:103
1360299480,21cyclictest1299-21runrttasks20:24:503
1360199485,9cyclictest33-21ksoftirqd/222:05:212
1360199485,8cyclictest33-21ksoftirqd/223:00:002
1360199482,9cyclictest33-21ksoftirqd/222:45:172
1360199482,7cyclictest0-21swapper/220:54:552
1360199482,7cyclictest0-21swapper/220:19:492
1360199482,29cyclictest0-21swapper/219:50:242
13601994820,8cyclictest33-21ksoftirqd/200:35:182
2847191470,3ptp4l0-21swapper/223:25:002
2847191470,3ptp4l0-21swapper/223:25:002
2847191470,3ptp4l0-21swapper/023:27:320
1360299472,20cyclictest0-21swapper/323:55:013
1360299471,28cyclictest1778-21gnome-shell21:21:583
1360299471,26cyclictest1778-21gnome-shell23:19:583
1360199476,8cyclictest33-21ksoftirqd/222:25:262
1360199475,8cyclictest33-21ksoftirqd/223:05:022
1360199475,8cyclictest33-21ksoftirqd/200:25:262
1360199475,8cyclictest33-21ksoftirqd/200:25:252
1360199475,7cyclictest26660-21netstat20:45:232
1360199474,9cyclictest33-21ksoftirqd/219:15:012
1360199473,8cyclictest33-21ksoftirqd/219:55:222
1360199473,6cyclictest33-21ksoftirqd/223:00:272
1360199472,7cyclictest0-21swapper/222:33:122
1360199472,7cyclictest0-21swapper/221:09:562
1360199471,7cyclictest33-21ksoftirqd/223:15:002
1360199471,10cyclictest0-21swapper/222:00:522
1360099477,38cyclictest19558-21kworker/1:220:53:091
2847191460,4ptp4l0-21swapper/220:43:202
2847191460,3ptp4l15924-1kworker/2:0H23:18:122
1360299462,42cyclictest0-21swapper/320:45:163
1360299461,26cyclictest1778-21gnome-shell20:04:593
1360299461,25cyclictest1778-21gnome-shell21:47:593
1360299461,25cyclictest1778-21gnome-shell21:47:593
1360299460,23cyclictest21513-21chrt00:02:013
1360199462,7cyclictest0-21swapper/223:55:162
1360199462,7cyclictest0-21swapper/219:18:442
1360199462,28cyclictest0-21swapper/219:40:152
2847191450,9ptp4l0-21swapper/019:52:560
2847191450,6ptp4l11663-21apt-get20:15:163
2847191450,5ptp4l23269-21apt-get20:40:143
2847191450,5ptp4l14005-21apt-get20:20:140
2847191450,11ptp4l0-21swapper/023:41:180
2847191450,10ptp4l0-21swapper/021:41:030
1360299453,24cyclictest0-21swapper/319:13:293
1360199453,6cyclictest33-21ksoftirqd/220:00:172
1360199452,10cyclictest0-21swapper/221:45:142
1360199452,10cyclictest0-21swapper/221:45:142
1360199450,7cyclictest33-21ksoftirqd/221:55:002
2847191440,9ptp4l0-21swapper/022:21:420
2847191440,9ptp4l0-21swapper/021:01:590
2847191440,5ptp4l7389-21apt-get21:15:132
2847191440,4ptp4l14498-21apt-get22:40:121
2847191440,3ptp4l29603-21apt-get00:20:150
2847191440,10ptp4l0-21swapper/322:30:593
1360299442,15cyclictest0-21swapper/300:05:003
1360299440,22cyclictest30445-21df_abs20:55:163
1360199445,9cyclictest33-21ksoftirqd/220:30:192
1360199445,9cyclictest33-21ksoftirqd/220:30:192
1360199445,10cyclictest33-21ksoftirqd/223:40:192
1360199442,7cyclictest33-21ksoftirqd/223:35:292
1360199442,6cyclictest0-21swapper/222:40:012
1360199441,6cyclictest33-21ksoftirqd/220:22:312
1360199440,6cyclictest33-21ksoftirqd/220:10:142
1360199440,6cyclictest21357-21cat22:55:002
1360199440,6cyclictest21356-21fschecks_time20:35:152
2847191430,9ptp4l33-21ksoftirqd/219:45:112
2847191430,5ptp4l0-21swapper/019:55:120
2847191430,4ptp4l0-21swapper/022:38:560
2847191430,11ptp4l0-21swapper/023:10:360
2847191430,10ptp4l23276-21grep20:40:140
1360299430,27cyclictest3748-21taskset00:32:443
1360199432,6cyclictest0-21swapper/222:17:552
13601994317,5cyclictest33-21ksoftirqd/221:56:302
1360199431,5cyclictest33-21ksoftirqd/221:25:002
1360099439,32cyclictest11473-21kworker/1:022:00:291
13600994314,28cyclictest0-21swapper/121:07:101
2847191420,9ptp4l0-21swapper/020:53:050
2847191420,5ptp4l22152-21irqstats21:45:200
2847191420,5ptp4l22152-21irqstats21:45:200
2847191420,5ptp4l0-21swapper/323:40:133
2847191420,4ptp4l17940-21ntp_states22:45:240
2847191420,4ptp4l0-21swapper/022:40:120
2847191420,3ptp4l0-21swapper/120:10:011
2847191420,3ptp4l0-21swapper/019:26:260
1360299422,38cyclictest0-21swapper/321:15:203
1360299422,27cyclictest0-21swapper/300:37:433
1360299420,27cyclictest4299-21taskset19:58:003
13600994212,28cyclictest0-21swapper/120:36:301
2847191410,9ptp4l0-21swapper/021:08:140
2847191410,5ptp4l8394-21python20:05:250
2847191410,5ptp4l30488-21df_abs20:55:150
2847191410,5ptp4l0-21swapper/022:55:200
2847191410,4ptp4l5289-21df21:10:150
2847191410,4ptp4l491-21apt-get22:10:132
2847191410,4ptp4l25-21ksoftirqd/122:16:221
2847191410,4ptp4l20830-21ntp_states00:00:240
2847191410,4ptp4l0-21swapper/023:56:400
2847191410,4ptp4l0-21swapper/023:45:500
2847191410,4ptp4l0-21swapper/000:30:070
1360299412,24cyclictest0-21swapper/321:50:553
1359999411,6cyclictest2847191ptp4l00:10:210
2847191400,5ptp4l0-21swapper/123:19:201
2847191400,5ptp4l0-21swapper/021:29:380
2847191400,4ptp4l8764-21ps22:25:240
2847191400,4ptp4l5392-21df_inode21:10:171
2847191400,4ptp4l10785-21/usr/sbin/munin21:20:220
2847191400,4ptp4l0-21swapper/123:00:291
2847191400,4ptp4l0-21swapper/122:36:261
2847191400,4ptp4l0-21swapper/120:00:271
2847191400,4ptp4l0-21swapper/119:55:001
2847191400,4ptp4l0-21swapper/023:50:320
2847191400,4ptp4l0-21swapper/023:38:000
2847191400,4ptp4l0-21swapper/023:32:100
2847191400,4ptp4l0-21swapper/023:20:150
2847191400,4ptp4l0-21swapper/023:20:150
2847191400,4ptp4l0-21swapper/022:50:240
2847191400,4ptp4l0-21swapper/022:31:160
2847191400,4ptp4l0-21swapper/022:17:080
2847191400,4ptp4l0-21swapper/022:07:130
2847191400,4ptp4l0-21swapper/022:02:030
2847191400,4ptp4l0-21swapper/021:56:320
2847191400,4ptp4l0-21swapper/021:50:180
2847191400,4ptp4l0-21swapper/021:38:240
2847191400,4ptp4l0-21swapper/020:28:120
2847191400,4ptp4l0-21swapper/020:15:180
2847191400,4ptp4l0-21swapper/019:41:290
2847191400,4ptp4l0-21swapper/019:38:150
2847191400,4ptp4l0-21swapper/000:35:140
2847191400,4ptp4l0-21swapper/000:17:120
2847191400,4ptp4l0-21swapper/000:06:230
2847191400,3ptp4l0-21swapper/019:30:280
2847191400,3ptp4l0-21swapper/019:10:530
1360299401,24cyclictest15917-21taskset19:15:043
1360099406,14cyclictest30266-21kworker/1:222:33:491
2847191390,5ptp4l0-21swapper/120:20:141
2847191390,5ptp4l0-21swapper/023:17:480
2847191390,5ptp4l0-21swapper/020:35:070
2847191390,5ptp4l0-21swapper/020:10:220
2847191390,5ptp4l0-21swapper/019:20:100
2847191390,4ptp4l0-21swapper/321:10:293
2847191390,4ptp4l0-21swapper/220:55:182
2847191390,4ptp4l0-21swapper/123:50:081
2847191390,4ptp4l0-21swapper/123:35:591
2847191390,4ptp4l0-21swapper/123:10:141
2847191390,4ptp4l0-21swapper/122:25:151
2847191390,4ptp4l0-21swapper/120:59:341
2847191390,4ptp4l0-21swapper/119:36:111
2847191390,4ptp4l0-21swapper/119:29:131
2847191390,4ptp4l0-21swapper/023:07:470
2847191390,4ptp4l0-21swapper/019:46:080
2847191390,4ptp4l0-21swapper/019:15:280
2847191390,3ptp4l7106-21mailstats23:30:271
2847191390,3ptp4l2707-21df_inode19:55:131
2847191390,3ptp4l24395-21ntp_states20:40:251
2847191390,3ptp4l0-21swapper/022:10:550
2847191390,3ptp4l0-21swapper/021:31:180
2847191390,3ptp4l0-21swapper/020:45:300
2847191380,4ptp4l0-21swapper/123:55:131
2847191380,4ptp4l0-21swapper/123:25:241
2847191380,4ptp4l0-21swapper/123:20:581
2847191380,4ptp4l0-21swapper/123:20:581
2847191380,4ptp4l0-21swapper/122:53:581
2847191380,4ptp4l0-21swapper/122:22:151
2847191380,4ptp4l0-21swapper/122:05:141
2847191380,4ptp4l0-21swapper/121:43:271
2847191380,4ptp4l0-21swapper/121:24:261
2847191380,4ptp4l0-21swapper/121:03:011
2847191380,4ptp4l0-21swapper/120:31:471
2847191380,4ptp4l0-21swapper/120:31:471
2847191380,4ptp4l0-21swapper/120:17:271
2847191380,4ptp4l0-21swapper/119:11:411
2847191380,4ptp4l0-21swapper/100:20:031
2847191380,4ptp4l0-21swapper/100:09:561
2847191380,3ptp4l0-21swapper/123:47:291
2847191380,3ptp4l0-21swapper/119:46:211
2847191380,3ptp4l0-21swapper/100:34:421
2847191380,3ptp4l0-21swapper/100:15:281
2847191380,3ptp4l0-21swapper/100:10:221
1360099388,29cyclictest19558-21kworker/1:221:16:481
13600993811,26cyclictest0-21swapper/123:05:291
2847191370,4ptp4l0-21swapper/122:55:241
2847191370,4ptp4l0-21swapper/121:58:001
2847191370,4ptp4l0-21swapper/121:51:271
2847191370,4ptp4l0-21swapper/121:45:211
2847191370,4ptp4l0-21swapper/121:45:211
2847191370,4ptp4l0-21swapper/121:30:211
2847191370,4ptp4l0-21swapper/121:25:581
2847191370,4ptp4l0-21swapper/120:10:331
2847191370,4ptp4l0-21swapper/119:22:321
2847191370,4ptp4l0-21swapper/119:15:211
2847191370,4ptp4l0-21swapper/100:25:271
2847191370,4ptp4l0-21swapper/100:25:271
2847191370,3ptp4l0-21swapper/120:45:121
2847191370,3ptp4l0-21swapper/100:00:221
2847191360,3ptp4l0-21swapper/121:36:231
2847191360,3ptp4l0-21swapper/119:30:231
2847191360,3ptp4l0-21swapper/100:37:471
2847191350,3ptp4l0-21swapper/119:42:481
2847191280,3ptp4l0-21swapper/122:14:261
130742192,3sleep20-21swapper/219:07:082
130602191,3sleep30-21swapper/319:06:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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