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2025-12-10 - 12:49
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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 rackdslot2.osadl.org (updated Wed Dec 10, 2025 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227522230202,19sleep30-21swapper/319:05:593
227972207173,23sleep20-21swapper/219:06:342
227752205171,23sleep00-21swapper/019:06:160
208832203169,23sleep10-21swapper/119:05:081
1365911070,1ptp4l9108-21ls19:45:203
1366918762,16phc2sys0-21swapper/319:10:013
133391600,7getstats2336699cyclictest00:20:393
2336399566,20cyclictest9047-21taskset20:52:380
136591550,1ptp4l401ktimersoftd/321:43:453
136591540,1ptp4l401ktimersoftd/320:09:103
136591470,1ptp4l401ktimersoftd/321:56:233
2336399451,3cyclictest0-21swapper/022:15:460
23363994510,25cyclictest25801-21seq21:28:330
2336399425,22cyclictest13919-21taskset21:04:020
2336399421,3cyclictest18679-21runrttasks00:31:550
136591420,0ptp4l401ktimersoftd/321:33:433
2336399410,4cyclictest26788-21seq22:36:370
23364993933,4cyclictest9431-21cron00:15:001
2336399392,4cyclictest27667-21runrttasks19:17:220
136591390,1ptp4l401ktimersoftd/322:22:593
2336399361,2cyclictest0-21swapper/021:42:070
23366993529,4cyclictest6848-21cron00:10:003
23365993529,3cyclictest33-21ksoftirqd/222:15:002
23365993523,9cyclictest33-21ksoftirqd/221:15:212
23365993522,10cyclictest33-21ksoftirqd/223:20:172
23365993522,10cyclictest33-21ksoftirqd/223:20:172
2336399351,3cyclictest0-21swapper/023:13:390
23366993423,9cyclictest41-21ksoftirqd/323:45:283
23365993428,4cyclictest33-21ksoftirqd/223:36:362
23365993427,4cyclictest33-21ksoftirqd/222:48:062
23365993427,4cyclictest33-21ksoftirqd/219:32:172
23365993426,5cyclictest33-21ksoftirqd/200:04:242
23365993422,10cyclictest33-21ksoftirqd/222:35:212
23364993427,4cyclictest25-21ksoftirqd/119:20:131
2336399340,3cyclictest7790-21snmpd20:40:170
2336399340,3cyclictest7790-21snmpd20:40:170
23366993327,4cyclictest41-21ksoftirqd/320:34:313
23366993326,4cyclictest41-21ksoftirqd/321:04:013
23365993327,4cyclictest33-21ksoftirqd/223:32:472
23365993327,3cyclictest33-21ksoftirqd/223:44:592
23365993326,4cyclictest33-21ksoftirqd/220:47:072
23365993321,9cyclictest33-21ksoftirqd/223:05:202
23364993327,4cyclictest25-21ksoftirqd/100:23:571
23363993327,4cyclictest9-21ksoftirqd/019:55:340
23363993314,16cyclictest24808-21grep23:40:170
23366993226,4cyclictest41-21ksoftirqd/323:30:403
23366993226,4cyclictest41-21ksoftirqd/321:20:063
23366993226,4cyclictest41-21ksoftirqd/319:59:023
23366993225,4cyclictest41-21ksoftirqd/323:07:443
23366993225,4cyclictest41-21ksoftirqd/323:03:393
23366993225,4cyclictest41-21ksoftirqd/300:10:563
2336599327,10cyclictest0-21swapper/200:20:172
23365993227,3cyclictest33-21ksoftirqd/222:00:142
23365993227,3cyclictest33-21ksoftirqd/219:22:362
23365993227,3cyclictest33-21ksoftirqd/200:30:012
23365993227,3cyclictest33-21ksoftirqd/200:15:192
23365993225,4cyclictest33-21ksoftirqd/200:39:152
23364993227,3cyclictest25-21ksoftirqd/121:13:361
23364993227,3cyclictest25-21ksoftirqd/120:25:141
23364993226,4cyclictest25-21ksoftirqd/123:30:341
23364993226,4cyclictest25-21ksoftirqd/121:44:231
23364993225,4cyclictest25-21ksoftirqd/120:46:181
2336399323,3cyclictest0-21swapper/020:09:530
23363993226,4cyclictest9-21ksoftirqd/023:18:090
23363993226,4cyclictest9-21ksoftirqd/023:08:190
23363993226,4cyclictest9-21ksoftirqd/022:22:450
23363993226,3cyclictest9-21ksoftirqd/019:40:100
23363993219,10cyclictest9-21ksoftirqd/020:40:000
23363993214,15cyclictest13105-21ls22:10:130
2336399320,4cyclictest24679-21runrttasks20:19:040
136591320,0ptp4l401ktimersoftd/321:25:163
23366993126,3cyclictest41-21ksoftirqd/320:50:213
23366993125,4cyclictest41-21ksoftirqd/321:18:533
23366993125,4cyclictest41-21ksoftirqd/319:17:383
23365993127,3cyclictest33-21ksoftirqd/223:29:352
23365993126,3cyclictest33-21ksoftirqd/221:45:132
23365993126,3cyclictest33-21ksoftirqd/220:20:142
23365993126,3cyclictest33-21ksoftirqd/219:35:142
23365993126,3cyclictest33-21ksoftirqd/219:35:142
23365993126,3cyclictest33-21ksoftirqd/219:28:362
23365993125,4cyclictest33-21ksoftirqd/221:56:222
23365993125,4cyclictest33-21ksoftirqd/219:57:202
23365993125,4cyclictest33-21ksoftirqd/219:15:322
23365993125,3cyclictest33-21ksoftirqd/221:42:072
23365993124,4cyclictest33-21ksoftirqd/220:50:042
23365993119,10cyclictest33-21ksoftirqd/221:35:292
23365993118,10cyclictest33-21ksoftirqd/221:20:182
23364993126,3cyclictest25-21ksoftirqd/119:30:001
23364993125,4cyclictest25-21ksoftirqd/122:12:151
23364993125,4cyclictest25-21ksoftirqd/121:29:301
23364993125,4cyclictest25-21ksoftirqd/121:02:431
23364993125,4cyclictest25-21ksoftirqd/120:57:411
23364993124,4cyclictest25-21ksoftirqd/119:13:101
2336399319,19cyclictest10776-21grep00:15:210
2336399318,21cyclictest24718-21ptp4l-jitter19:10:240
23363993125,4cyclictest9-21ksoftirqd/019:48:360
23363993114,14cyclictest524-21in:imuxsock21:50:000
2336399310,2cyclictest5416-21smartctl23:00:170
2336399310,2cyclictest0-21swapper/022:30:250
2336399310,2cyclictest0-21swapper/020:00:170
2336399310,2cyclictest0-21swapper/019:39:330
2336399310,2cyclictest0-21swapper/019:39:330
136591310,0ptp4l401ktimersoftd/300:30:443
23366993025,3cyclictest41-21ksoftirqd/320:35:113
23366993024,4cyclictest41-21ksoftirqd/323:44:203
23366993024,4cyclictest41-21ksoftirqd/322:01:383
23366993024,4cyclictest41-21ksoftirqd/321:06:143
23366993024,3cyclictest41-21ksoftirqd/321:45:103
23366993024,3cyclictest41-21ksoftirqd/300:17:543
23366993023,4cyclictest41-21ksoftirqd/322:07:003
23366993023,4cyclictest41-21ksoftirqd/320:29:113
2336599307,11cyclictest33-21ksoftirqd/222:15:272
23365993025,3cyclictest33-21ksoftirqd/223:00:142
23365993025,3cyclictest33-21ksoftirqd/200:09:592
23365993025,2cyclictest33-21ksoftirqd/223:50:002
23365993024,4cyclictest33-21ksoftirqd/223:12:022
23365993024,4cyclictest33-21ksoftirqd/220:57:452
23365993024,3cyclictest33-21ksoftirqd/221:00:202
23365993018,10cyclictest33-21ksoftirqd/222:20:202
23365993017,10cyclictest33-21ksoftirqd/220:40:262
23365993017,10cyclictest33-21ksoftirqd/220:40:262
23364993025,3cyclictest25-21ksoftirqd/122:49:581
23364993024,4cyclictest25-21ksoftirqd/123:58:221
23364993024,4cyclictest25-21ksoftirqd/123:20:551
23364993024,4cyclictest25-21ksoftirqd/123:20:551
23364993024,4cyclictest25-21ksoftirqd/123:10:431
23364993024,4cyclictest25-21ksoftirqd/123:04:411
23364993024,4cyclictest25-21ksoftirqd/122:40:471
23364993024,4cyclictest25-21ksoftirqd/122:09:021
23364993024,4cyclictest25-21ksoftirqd/122:03:451
23364993024,4cyclictest25-21ksoftirqd/121:47:241
23364993024,4cyclictest25-21ksoftirqd/121:31:301
23364993024,4cyclictest25-21ksoftirqd/120:12:441
23364993024,4cyclictest25-21ksoftirqd/120:12:441
23364993024,4cyclictest25-21ksoftirqd/119:54:551
23364993024,4cyclictest25-21ksoftirqd/119:19:561
23364993024,4cyclictest25-21ksoftirqd/100:07:131
23364993023,4cyclictest25-21ksoftirqd/120:50:471
2336399309,18cyclictest17476-21sed21:10:210
2336399307,20cyclictest5818-21cat21:54:590
23363993025,3cyclictest9-21ksoftirqd/022:43:020
23363993025,3cyclictest9-21ksoftirqd/021:56:450
23363993025,3cyclictest9-21ksoftirqd/020:23:340
23363993025,3cyclictest9-21ksoftirqd/000:27:060
2336399301,7cyclictest0-21swapper/000:10:180
23363993011,17cyclictest32063-21idleruntime-cro22:49:590
23363993010,17cyclictest12776-21sh22:10:000
2336399300,2cyclictest0-21swapper/022:51:050
2336399300,2cyclictest0-21swapper/022:51:040
136591300,1ptp4l401ktimersoftd/320:41:063
136591300,1ptp4l401ktimersoftd/320:41:063
136591300,0ptp4l401ktimersoftd/323:36:313
136591300,0ptp4l401ktimersoftd/320:04:013
136591300,0ptp4l401ktimersoftd/319:35:553
136591300,0ptp4l401ktimersoftd/319:35:553
23366992924,3cyclictest41-21ksoftirqd/323:19:053
23366992924,3cyclictest41-21ksoftirqd/322:45:203
23366992924,3cyclictest41-21ksoftirqd/322:35:523
23366992924,3cyclictest41-21ksoftirqd/319:40:533
23366992923,4cyclictest41-21ksoftirqd/323:21:583
23366992923,4cyclictest41-21ksoftirqd/323:21:583
23366992923,4cyclictest41-21ksoftirqd/322:16:293
23366992922,4cyclictest41-21ksoftirqd/320:55:473
23365992924,3cyclictest33-21ksoftirqd/223:54:002
23365992924,3cyclictest33-21ksoftirqd/223:53:592
23365992924,3cyclictest33-21ksoftirqd/222:56:362
23365992924,3cyclictest33-21ksoftirqd/222:40:182
23365992924,3cyclictest33-21ksoftirqd/221:51:172
23365992924,3cyclictest33-21ksoftirqd/221:30:382
23365992924,3cyclictest33-21ksoftirqd/220:25:212
23365992924,3cyclictest33-21ksoftirqd/220:15:002
23365992924,3cyclictest33-21ksoftirqd/220:15:002
23365992924,3cyclictest33-21ksoftirqd/219:45:192
23365992924,3cyclictest33-21ksoftirqd/200:12:002
23365992923,3cyclictest33-21ksoftirqd/222:31:462
23365992922,4cyclictest33-21ksoftirqd/222:52:562
23365992922,4cyclictest33-21ksoftirqd/222:52:552
23365992922,4cyclictest33-21ksoftirqd/221:13:592
23364992924,3cyclictest25-21ksoftirqd/120:35:171
23364992923,4cyclictest25-21ksoftirqd/123:06:501
23364992923,4cyclictest25-21ksoftirqd/122:57:081
23364992923,4cyclictest25-21ksoftirqd/122:52:471
23364992923,4cyclictest25-21ksoftirqd/122:52:471
23364992923,4cyclictest25-21ksoftirqd/122:19:281
23364992923,4cyclictest25-21ksoftirqd/121:24:211
23364992923,4cyclictest25-21ksoftirqd/119:55:391
23364992923,4cyclictest25-21ksoftirqd/119:39:061
23364992923,4cyclictest25-21ksoftirqd/119:39:061
23364992923,4cyclictest25-21ksoftirqd/100:38:171
23364992923,3cyclictest25-21ksoftirqd/122:25:001
23364992922,5cyclictest25-21ksoftirqd/122:26:591
23364992922,4cyclictest25-21ksoftirqd/123:44:541
2336399299,18cyclictest10658-21ls19:50:140
2336399299,17cyclictest27441-21fschecks_time23:45:160
2336399297,19cyclictest31051-21sed21:40:000
2336399296,19cyclictest6938-21apt-key00:09:590
23363992924,3cyclictest9-21ksoftirqd/021:31:010
23363992924,3cyclictest9-21ksoftirqd/021:25:000
23363992924,3cyclictest9-21ksoftirqd/021:16:060
23363992924,3cyclictest9-21ksoftirqd/020:59:010
23363992923,4cyclictest9-21ksoftirqd/023:24:550
23363992923,4cyclictest9-21ksoftirqd/023:24:550
23363992923,4cyclictest9-21ksoftirqd/020:28:150
23363992923,4cyclictest9-21ksoftirqd/020:11:230
23363992923,4cyclictest9-21ksoftirqd/020:11:230
23363992923,4cyclictest9-21ksoftirqd/019:27:590
23363992923,4cyclictest9-21ksoftirqd/019:24:290
23363992913,14cyclictest30208-21fschecks_time20:30:150
2336399291,23cyclictest29544-21apt-get23:50:120
2336399291,23cyclictest29544-21apt-get23:50:120
2336399290,3cyclictest2725-21if_enp1s000:00:170
2336399290,3cyclictest21944-21users22:25:290
136591290,0ptp4l401ktimersoftd/323:57:443
136591290,0ptp4l401ktimersoftd/323:50:153
136591290,0ptp4l401ktimersoftd/323:50:153
136591290,0ptp4l401ktimersoftd/322:28:263
136591290,0ptp4l401ktimersoftd/319:52:523
136591290,0ptp4l401ktimersoftd/319:26:063
23366992825,1cyclictest136591ptp4l20:15:393
23366992823,3cyclictest41-21ksoftirqd/300:27:493
23365992823,3cyclictest33-21ksoftirqd/220:40:002
23365992822,4cyclictest33-21ksoftirqd/220:34:232
23365992821,4cyclictest33-21ksoftirqd/221:26:512
23365992817,10cyclictest33-21ksoftirqd/200:30:252
23365992816,10cyclictest33-21ksoftirqd/222:05:202
23365992816,10cyclictest33-21ksoftirqd/219:50:252
23364992822,4cyclictest25-21ksoftirqd/120:34:581
23364992822,4cyclictest25-21ksoftirqd/100:31:591
23364992822,3cyclictest25-21ksoftirqd/123:50:001
23364992821,4cyclictest25-21ksoftirqd/123:27:251
2336399288,17cyclictest5322-21awk20:45:190
2336399284,20cyclictest2091-21date00:00:000
23363992823,3cyclictest9-21ksoftirqd/023:30:040
23363992823,3cyclictest9-21ksoftirqd/023:29:510
23363992823,3cyclictest9-21ksoftirqd/000:24:030
2336399282,21cyclictest21985-21apt-get23:35:130
2336399280,2cyclictest2485-21appstreamcli22:55:010
136591280,0ptp4l401ktimersoftd/322:57:243
136591280,0ptp4l401ktimersoftd/322:32:213
23366992722,3cyclictest41-21ksoftirqd/320:24:523
23366992722,3cyclictest41-21ksoftirqd/320:11:593
23366992722,3cyclictest41-21ksoftirqd/320:11:593
23366992721,3cyclictest41-21ksoftirqd/323:25:203
23365992723,2cyclictest33-21ksoftirqd/220:05:202
23365992721,3cyclictest33-21ksoftirqd/222:25:212
23365992721,3cyclictest33-21ksoftirqd/220:00:162
23365992716,9cyclictest33-21ksoftirqd/219:10:142
23365992714,10cyclictest33-21ksoftirqd/223:55:182
23364992723,3cyclictest25-21ksoftirqd/121:50:141
23364992722,3cyclictest25-21ksoftirqd/122:31:531
23364992721,4cyclictest25-21ksoftirqd/120:19:061
23364992721,4cyclictest25-21ksoftirqd/120:00:441
2336399275,19cyclictest2092-21systemctl19:30:240
23363992722,3cyclictest9-21ksoftirqd/000:37:330
136591270,0ptp4l401ktimersoftd/322:42:503
23365992620,4cyclictest33-21ksoftirqd/223:16:432
23365992620,4cyclictest33-21ksoftirqd/219:42:402
23364992620,4cyclictest25-21ksoftirqd/122:37:391
23364992619,4cyclictest25-21ksoftirqd/123:53:211
23364992619,4cyclictest25-21ksoftirqd/123:53:211
2336399264,3cyclictest15894-21grep21:05:270
2336399264,19cyclictest10015-21uptime22:00:280
136591260,0ptp4l401ktimersoftd/322:50:203
136591260,0ptp4l401ktimersoftd/322:50:203
23366992513,10cyclictest41-21ksoftirqd/321:50:203
23365992520,3cyclictest33-21ksoftirqd/221:07:292
23364992520,3cyclictest25-21ksoftirqd/123:15:201
23364992520,3cyclictest25-21ksoftirqd/121:55:211
23364992520,3cyclictest25-21ksoftirqd/121:19:481
23364992519,4cyclictest25-21ksoftirqd/123:38:571
23364992519,4cyclictest25-21ksoftirqd/120:21:391
23364992518,5cyclictest25-21ksoftirqd/121:07:481
2336499250,2cyclictest25-21ksoftirqd/100:20:001
136591250,0ptp4l401ktimersoftd/321:35:143
136591250,0ptp4l401ktimersoftd/321:10:283
23366992418,4cyclictest41-21ksoftirqd/323:10:183
23365992412,10cyclictest33-21ksoftirqd/220:15:192
23364992419,3cyclictest25-21ksoftirqd/119:30:031
23364992419,3cyclictest25-21ksoftirqd/100:25:161
23364992418,3cyclictest25-21ksoftirqd/120:07:311
136591240,0ptp4l401ktimersoftd/319:30:123
23364992318,3cyclictest25-21ksoftirqd/120:44:131
23364992318,3cyclictest25-21ksoftirqd/120:44:131
23364992317,4cyclictest25-21ksoftirqd/119:44:241
23364992317,3cyclictest25-21ksoftirqd/100:00:191
23364992316,4cyclictest25-21ksoftirqd/121:36:001
136591230,1ptp4l401ktimersoftd/300:00:223
136591230,0ptp4l401ktimersoftd/322:10:123
136591230,0ptp4l401ktimersoftd/320:45:063
136591230,0ptp4l401ktimersoftd/319:21:423
136591230,0ptp4l401ktimersoftd/300:35:313
23364992217,3cyclictest25-21ksoftirqd/119:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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