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2025-12-25 - 03:39
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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 rackdslot4.osadl.org (updated Thu Dec 25, 2025 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
170582201167,23sleep10-21swapper/119:08:201
170282201168,22sleep30-21swapper/319:07:583
170872198165,22sleep00-21swapper/019:08:430
170592198166,21sleep20-21swapper/219:08:212
2302821470,6sleep31748299cyclictest21:30:173
1718828459,16sleep10-21swapper/119:10:011
1718828459,16sleep10-21swapper/119:10:011
17481996632,3cyclictest33-21ksoftirqd/221:35:222
17480996511,18cyclictest13315-21cut20:05:191
17479996329,4cyclictest9-21ksoftirqd/021:05:010
17479996126,10cyclictest9-21ksoftirqd/000:15:000
17479996026,10cyclictest9-21ksoftirqd/019:40:190
17479995925,8cyclictest9-21ksoftirqd/022:25:180
17481995828,7cyclictest33-21ksoftirqd/222:00:002
17480995710,19cyclictest19580-21seq20:19:151
1747999577,8cyclictest9-21ksoftirqd/020:55:130
17479995727,4cyclictest9-21ksoftirqd/022:50:160
17479995723,9cyclictest9-21ksoftirqd/022:05:180
17479995721,3cyclictest9-21ksoftirqd/020:45:250
17479995622,9cyclictest9-21ksoftirqd/020:30:170
17479995621,5cyclictest9-21ksoftirqd/022:35:030
17479995621,5cyclictest9-21ksoftirqd/022:35:030
17481995525,3cyclictest33-21ksoftirqd/200:15:002
17481995523,10cyclictest33-21ksoftirqd/220:45:002
17479995529,9cyclictest9-21ksoftirqd/023:35:510
17479995524,4cyclictest9-21ksoftirqd/023:05:200
17479995523,4cyclictest9-21ksoftirqd/023:55:270
17481995425,7cyclictest33-21ksoftirqd/223:50:142
17481995425,3cyclictest33-21ksoftirqd/220:30:192
17481995423,3cyclictest33-21ksoftirqd/219:45:232
17481995420,8cyclictest33-21ksoftirqd/223:55:192
1748099540,22cyclictest29426-21seq19:32:371
17479995421,5cyclictest9-21ksoftirqd/000:05:160
17481995324,7cyclictest33-21ksoftirqd/223:10:002
17481995322,7cyclictest33-21ksoftirqd/222:50:232
17481995322,4cyclictest33-21ksoftirqd/223:15:132
17481995320,7cyclictest33-21ksoftirqd/223:40:242
1747999536,8cyclictest9-21ksoftirqd/000:35:120
17479995326,6cyclictest9-21ksoftirqd/023:20:010
1747999531,9cyclictest9-21ksoftirqd/019:50:000
17481995230,15cyclictest33-21ksoftirqd/223:35:242
17481995222,4cyclictest33-21ksoftirqd/219:50:132
17481995222,4cyclictest33-21ksoftirqd/219:50:132
17481995216,4cyclictest33-21ksoftirqd/200:05:222
1747999526,10cyclictest9-21ksoftirqd/020:00:000
127642520,3sleep012768-21cpuspeed_turbos22:15:110
17481995123,19cyclictest33-21ksoftirqd/223:10:232
1747999516,7cyclictest9-21ksoftirqd/020:10:200
1747999515,6cyclictest9-21ksoftirqd/021:15:230
17479995134,8cyclictest9-21ksoftirqd/021:49:590
17481995026,6cyclictest33-21ksoftirqd/221:00:272
17481995026,6cyclictest33-21ksoftirqd/220:45:272
17481995022,7cyclictest33-21ksoftirqd/220:30:012
17481995022,3cyclictest33-21ksoftirqd/219:30:232
1747999507,8cyclictest9-21ksoftirqd/022:40:170
1747999506,7cyclictest9-21ksoftirqd/022:30:250
1747999505,4cyclictest9-21ksoftirqd/022:15:010
1747999505,4cyclictest9-21ksoftirqd/020:40:150
1747999503,6cyclictest9-21ksoftirqd/019:35:180
1747999503,10cyclictest9-21ksoftirqd/020:35:190
1747999502,10cyclictest9-21ksoftirqd/021:40:270
1747999501,7cyclictest9-21ksoftirqd/021:05:200
1747999501,5cyclictest9-21ksoftirqd/020:00:250
17481994920,4cyclictest33-21ksoftirqd/222:20:152
17481994920,10cyclictest33-21ksoftirqd/219:25:012
17481994915,3cyclictest33-21ksoftirqd/200:20:152
17481994914,9cyclictest33-21ksoftirqd/222:55:272
17481994914,9cyclictest33-21ksoftirqd/222:45:162
17481994910,9cyclictest33-21ksoftirqd/223:30:232
1747999495,6cyclictest9-21ksoftirqd/000:00:220
1747999490,9cyclictest9-21ksoftirqd/021:15:000
17481994822,6cyclictest33-21ksoftirqd/221:45:212
17481994821,7cyclictest33-21ksoftirqd/222:40:132
17481994820,7cyclictest33-21ksoftirqd/220:05:182
17481994819,3cyclictest33-21ksoftirqd/219:15:082
17481994817,3cyclictest33-21ksoftirqd/221:10:182
17481994817,3cyclictest33-21ksoftirqd/220:00:182
17481994812,9cyclictest33-21ksoftirqd/222:10:242
1748099482,17cyclictest0-21swapper/121:16:341
1747999487,2cyclictest9-21ksoftirqd/000:20:220
1747999486,7cyclictest9-21ksoftirqd/021:30:140
1747999486,6cyclictest9-21ksoftirqd/019:15:130
1747999485,6cyclictest9-21ksoftirqd/020:25:140
1747999484,8cyclictest9-21ksoftirqd/023:25:200
1747999484,10cyclictest9-21ksoftirqd/023:00:250
1747999483,9cyclictest9-21ksoftirqd/000:15:170
1747999483,6cyclictest9-21ksoftirqd/021:50:230
17479994835,3cyclictest9-21ksoftirqd/023:45:160
1747999482,9cyclictest9-21ksoftirqd/000:30:280
17479994829,4cyclictest9-21ksoftirqd/020:05:160
17479994829,10cyclictest9-21ksoftirqd/021:35:140
1747999482,8cyclictest9-21ksoftirqd/022:45:200
1747999482,8cyclictest9-21ksoftirqd/020:15:180
1747999480,5cyclictest9-21ksoftirqd/019:15:000
1747999480,5cyclictest9-21ksoftirqd/019:15:000
1748199473,3cyclictest121rcu_preempt19:40:282
17481994721,7cyclictest33-21ksoftirqd/222:35:162
17481994721,7cyclictest33-21ksoftirqd/222:35:162
17481994720,7cyclictest33-21ksoftirqd/221:30:142
17481994719,7cyclictest33-21ksoftirqd/222:00:162
17481994719,4cyclictest33-21ksoftirqd/219:59:142
17481994718,4cyclictest33-21ksoftirqd/220:39:292
1747999476,6cyclictest9-21ksoftirqd/023:30:140
1747999475,6cyclictest9-21ksoftirqd/022:00:150
1747999475,6cyclictest9-21ksoftirqd/019:25:190
1747999475,2cyclictest9-21ksoftirqd/019:50:160
1747999475,2cyclictest9-21ksoftirqd/019:50:150
1747999474,8cyclictest9-21ksoftirqd/019:20:180
1747999474,3cyclictest121rcu_preempt23:15:250
17481994630,5cyclictest33-21ksoftirqd/221:25:122
17481994630,5cyclictest33-21ksoftirqd/221:25:122
17481994618,4cyclictest33-21ksoftirqd/220:19:272
17481994618,3cyclictest33-21ksoftirqd/222:29:542
17481994616,4cyclictest33-21ksoftirqd/200:28:152
17481994615,3cyclictest33-21ksoftirqd/221:20:192
17481994613,8cyclictest33-21ksoftirqd/221:20:002
17481994610,9cyclictest33-21ksoftirqd/223:45:212
1747999466,7cyclictest9-21ksoftirqd/022:55:010
1747999466,5cyclictest9-21ksoftirqd/019:30:120
17479994629,8cyclictest9-21ksoftirqd/021:20:120
17479994627,9cyclictest9-21ksoftirqd/022:00:010
1747999462,6cyclictest9-21ksoftirqd/022:20:150
1747999460,6cyclictest9-21ksoftirqd/020:54:590
17481994535,3cyclictest33-21ksoftirqd/200:05:002
1748199452,3cyclictest33-21ksoftirqd/223:20:222
17481994519,7cyclictest33-21ksoftirqd/222:19:592
17481994519,7cyclictest33-21ksoftirqd/220:50:142
1747999455,7cyclictest9-21ksoftirqd/021:28:360
1747999455,7cyclictest9-21ksoftirqd/021:28:350
1747999454,7cyclictest9-21ksoftirqd/023:40:140
1747999454,3cyclictest9-21ksoftirqd/000:25:110
1747999450,6cyclictest101ktimersoftd/023:10:120
1748199449,9cyclictest33-21ksoftirqd/200:35:212
17481994417,3cyclictest33-21ksoftirqd/200:15:432
17481994416,4cyclictest33-21ksoftirqd/221:05:172
17481994416,4cyclictest33-21ksoftirqd/220:10:142
17481994416,3cyclictest33-21ksoftirqd/223:29:182
1748199441,3cyclictest33-21ksoftirqd/220:20:232
17481994411,9cyclictest33-21ksoftirqd/219:35:232
17481994410,9cyclictest33-21ksoftirqd/200:30:202
138491440,0ptp4l401ktimersoftd/320:20:243
17481994313,9cyclictest33-21ksoftirqd/219:25:122
17481994312,11cyclictest33-21ksoftirqd/222:05:192
1748199430,2cyclictest33-21ksoftirqd/221:50:122
1748099437,24cyclictest17071-21timerandwakeup23:25:281
1748099431,21cyclictest7729-21taskset00:12:311
1747999433,7cyclictest9-21ksoftirqd/023:50:140
138491430,0ptp4l401ktimersoftd/322:50:173
1748199423,2cyclictest33-21ksoftirqd/221:40:242
17481994225,5cyclictest33-21ksoftirqd/222:30:152
1748099423,21cyclictest0-21swapper/122:36:361
1748099423,21cyclictest0-21swapper/122:36:351
138491420,0ptp4l401ktimersoftd/300:28:223
138491420,0ptp4l401ktimersoftd/300:01:553
17481994125,5cyclictest33-21ksoftirqd/219:15:002
17481994125,5cyclictest33-21ksoftirqd/219:15:002
17481994111,9cyclictest33-21ksoftirqd/223:00:272
17481994010,7cyclictest33-21ksoftirqd/220:55:262
1748099409,19cyclictest1303-21runrttasks20:32:471
1748099408,18cyclictest1997-21seq20:48:591
1748099400,22cyclictest19616-21taskset22:28:131
138491400,33ptp4l0-21swapper/319:10:013
138491400,33ptp4l0-21swapper/319:10:013
138491400,1ptp4l401ktimersoftd/322:02:343
1747999393,7cyclictest9-21ksoftirqd/020:20:130
138491390,1ptp4l401ktimersoftd/300:12:353
17482993730,4cyclictest41-21ksoftirqd/323:00:003
1748099371,22cyclictest26166-21/usr/sbin/munin19:25:201
1748099370,22cyclictest243612sleep121:32:481
1748099370,21cyclictest24944-21seq23:43:461
17482993630,4cyclictest41-21ksoftirqd/322:36:093
17482993630,4cyclictest41-21ksoftirqd/322:36:083
17482993630,4cyclictest41-21ksoftirqd/320:32:093
1748099363,17cyclictest1303-21runrttasks22:51:511
17480993630,4cyclictest25-21ksoftirqd/122:21:111
17480993630,4cyclictest25-21ksoftirqd/120:23:331
17480993630,4cyclictest25-21ksoftirqd/100:36:341
1748099361,21cyclictest1303-21runrttasks22:02:121
1748099361,20cyclictest0-21swapper/100:03:311
1748099360,3cyclictest29425-21seq22:47:101
1748099360,1cyclictest0-21swapper/123:52:321
1748099360,1cyclictest0-21swapper/123:36:451
138491360,0ptp4l401ktimersoftd/320:55:003
17482993530,3cyclictest41-21ksoftirqd/321:15:113
17482993530,3cyclictest41-21ksoftirqd/321:10:543
17482993529,4cyclictest41-21ksoftirqd/323:57:443
17482993529,4cyclictest41-21ksoftirqd/323:52:183
17482993529,4cyclictest41-21ksoftirqd/323:17:093
17482993529,4cyclictest41-21ksoftirqd/323:15:013
17482993529,4cyclictest41-21ksoftirqd/323:07:263
17482993529,4cyclictest41-21ksoftirqd/321:54:053
1748099357,27cyclictest0-21swapper/100:16:541
17480993529,4cyclictest25-21ksoftirqd/122:56:331
17480993529,4cyclictest25-21ksoftirqd/121:35:091
17480993529,4cyclictest25-21ksoftirqd/120:10:371
1748099351,20cyclictest15517-21runrttasks00:29:381
17482993429,3cyclictest41-21ksoftirqd/321:25:103
17482993429,3cyclictest41-21ksoftirqd/321:25:103
17482993429,3cyclictest41-21ksoftirqd/320:11:563
17482993428,4cyclictest41-21ksoftirqd/321:03:393
17482993428,4cyclictest41-21ksoftirqd/320:45:413
17482993428,4cyclictest41-21ksoftirqd/320:28:523
17482993428,4cyclictest41-21ksoftirqd/319:51:343
17482993428,4cyclictest41-21ksoftirqd/319:51:343
17480993429,3cyclictest25-21ksoftirqd/119:46:021
17480993428,4cyclictest25-21ksoftirqd/123:55:411
17480993428,4cyclictest25-21ksoftirqd/123:47:281
17480993428,4cyclictest25-21ksoftirqd/123:12:421
17480993428,4cyclictest25-21ksoftirqd/120:51:331
17480993428,4cyclictest25-21ksoftirqd/100:21:011
17480993425,7cyclictest25-21ksoftirqd/119:36:431
1748099341,21cyclictest1890-21awk21:50:291
1748099341,20cyclictest1303-21runrttasks21:58:561
1748099341,19cyclictest19991-21taskset23:33:281
1748099341,19cyclictest0-21swapper/123:20:251
1748099340,20cyclictest1303-21runrttasks21:43:551
1748099340,20cyclictest1303-21runrttasks19:41:561
1748099340,20cyclictest1303-21runrttasks19:21:541
17482993327,4cyclictest41-21ksoftirqd/323:29:573
17482993327,4cyclictest41-21ksoftirqd/322:40:393
17482993327,4cyclictest41-21ksoftirqd/322:05:453
17482993327,4cyclictest41-21ksoftirqd/319:46:003
17482993327,4cyclictest41-21ksoftirqd/319:43:433
17482993327,4cyclictest41-21ksoftirqd/319:19:163
17482993327,3cyclictest41-21ksoftirqd/322:20:113
17480993327,4cyclictest25-21ksoftirqd/121:14:151
17480993327,4cyclictest25-21ksoftirqd/120:40:541
1748099331,19cyclictest0-21swapper/119:17:211
1748099330,3cyclictest1303-21runrttasks21:09:531
17482993227,3cyclictest41-21ksoftirqd/320:09:163
17482993227,3cyclictest41-21ksoftirqd/300:30:113
17482993226,4cyclictest41-21ksoftirqd/321:41:053
17482993226,4cyclictest41-21ksoftirqd/300:19:273
17480993226,4cyclictest25-21ksoftirqd/121:23:501
17480993226,4cyclictest25-21ksoftirqd/121:02:361
17480993226,4cyclictest25-21ksoftirqd/119:58:461
1748099320,3cyclictest1303-21runrttasks22:40:481
17482993126,3cyclictest41-21ksoftirqd/321:05:103
17482993125,4cyclictest41-21ksoftirqd/323:32:383
17482993125,4cyclictest41-21ksoftirqd/323:02:333
17482993125,4cyclictest41-21ksoftirqd/321:59:263
17482993125,3cyclictest17914-21fschecks_count20:15:153
17480993125,4cyclictest25-21ksoftirqd/123:05:281
17480993125,4cyclictest25-21ksoftirqd/121:25:551
17480993125,4cyclictest25-21ksoftirqd/121:25:551
17480993125,4cyclictest25-21ksoftirqd/100:06:301
1748099310,1cyclictest0-21swapper/120:25:211
1385913125,3phc2sys41-21ksoftirqd/321:35:003
138491310,0ptp4l401ktimersoftd/319:59:203
138491310,0ptp4l401ktimersoftd/300:21:163
17482993025,3cyclictest41-21ksoftirqd/322:48:073
17482993025,3cyclictest41-21ksoftirqd/320:35:253
17482993025,3cyclictest41-21ksoftirqd/319:35:113
17482993024,4cyclictest41-21ksoftirqd/323:46:143
17482993024,4cyclictest41-21ksoftirqd/323:40:003
17482993024,4cyclictest41-21ksoftirqd/323:24:073
17482993024,4cyclictest41-21ksoftirqd/321:46:273
17480993024,4cyclictest25-21ksoftirqd/122:31:051
17480993024,4cyclictest25-21ksoftirqd/122:09:471
1748099302,14cyclictest506-21rtkit-daemon23:03:141
1748099300,3cyclictest7255-21latency_hist21:00:011
1748099300,1cyclictest0-21swapper/122:15:171
138491300,0ptp4l401ktimersoftd/319:25:063
17482992924,3cyclictest41-21ksoftirqd/321:21:173
17482992924,3cyclictest41-21ksoftirqd/300:38:193
1748099295,21cyclictest12559-21cut23:20:011
17480992923,4cyclictest25-21ksoftirqd/121:45:531
17480992923,4cyclictest25-21ksoftirqd/119:53:361
17480992923,4cyclictest25-21ksoftirqd/119:53:361
1748099290,25cyclictest28110-21cut20:35:191
138491290,0ptp4l401ktimersoftd/322:32:133
138491290,0ptp4l401ktimersoftd/320:41:413
138491290,0ptp4l401ktimersoftd/319:22:503
17482992823,3cyclictest41-21ksoftirqd/323:42:003
17482992822,4cyclictest41-21ksoftirqd/319:30:363
17480992823,3cyclictest25-21ksoftirqd/120:00:131
17480992822,4cyclictest25-21ksoftirqd/100:31:041
1748099281,23cyclictest1967-21Xorg22:10:591
138491280,0ptp4l401ktimersoftd/322:14:563
138491280,0ptp4l401ktimersoftd/320:56:443
17482992723,3cyclictest41-21ksoftirqd/300:07:103
17482992722,3cyclictest41-21ksoftirqd/322:29:013
17482992722,3cyclictest41-21ksoftirqd/322:16:373
17482992622,3cyclictest41-21ksoftirqd/320:00:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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