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2026-07-17 - 05:12
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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 rackdslot3.osadl.org (updated Fri Jul 17, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
305732206173,22sleep20-21swapper/219:07:382
307092205171,22sleep10-21swapper/119:09:261
139491205170,23phc2sys0-21swapper/319:09:483
307202202169,22sleep00-21swapper/019:09:330
224621360,4sleep13104599cyclictest19:15:231
31045997518,55cyclictest0-21swapper/122:47:131
31046996231,3cyclictest33-21ksoftirqd/220:25:192
31046996227,11cyclictest33-21ksoftirqd/222:15:152
31046996226,5cyclictest33-21ksoftirqd/221:50:252
31046996129,4cyclictest33-21ksoftirqd/222:10:262
31046996126,4cyclictest33-21ksoftirqd/220:45:242
31046996028,4cyclictest33-21ksoftirqd/200:05:002
31046995929,9cyclictest33-21ksoftirqd/221:20:242
31046995924,4cyclictest33-21ksoftirqd/222:35:222
31046995924,4cyclictest33-21ksoftirqd/222:35:212
31046995828,4cyclictest33-21ksoftirqd/221:30:332
3104799574,12cyclictest1195-21sed21:30:003
31046995726,9cyclictest33-21ksoftirqd/219:25:222
31046995722,4cyclictest33-21ksoftirqd/223:00:172
3104799568,11cyclictest20667-21awk23:15:253
31046995621,9cyclictest33-21ksoftirqd/219:20:232
218382560,1sleep30-21swapper/300:25:193
3104699553,8cyclictest33-21ksoftirqd/219:50:002
3104699552,6cyclictest33-21ksoftirqd/223:50:002
31046995522,4cyclictest33-21ksoftirqd/221:40:272
3104699546,9cyclictest14535-21/usr/sbin/munin23:05:142
3104699536,4cyclictest33-21ksoftirqd/223:25:182
3104699535,10cyclictest33-21ksoftirqd/220:55:012
31046995320,10cyclictest33-21ksoftirqd/200:10:222
3104699530,5cyclictest33-21ksoftirqd/219:40:002
3104799526,10cyclictest11700-21sshd22:57:253
3104799525,7cyclictest0-21swapper/319:50:013
3104699526,10cyclictest33-21ksoftirqd/219:40:242
3104699526,10cyclictest33-21ksoftirqd/219:40:242
3104699524,9cyclictest33-21ksoftirqd/221:15:002
31046995227,4cyclictest33-21ksoftirqd/220:32:292
31046995220,8cyclictest33-21ksoftirqd/200:20:252
3104699521,6cyclictest33-21ksoftirqd/220:00:012
3104799516,11cyclictest14742-21awk19:40:253
3104799516,11cyclictest14742-21awk19:40:253
3104699513,7cyclictest33-21ksoftirqd/200:35:012
3104699512,8cyclictest33-21ksoftirqd/223:10:242
31046995121,3cyclictest33-21ksoftirqd/200:15:282
31046995118,11cyclictest33-21ksoftirqd/200:05:312
3104799503,10cyclictest25019-21chrt22:17:383
3104799502,12cyclictest30463-21sed23:35:263
3104799501,11cyclictest22450-21hddtemp_smartct21:05:183
3104699506,6cyclictest33-21ksoftirqd/221:26:042
3104699505,6cyclictest33-21ksoftirqd/219:10:112
3104699503,8cyclictest33-21ksoftirqd/222:30:132
3104699503,5cyclictest33-21ksoftirqd/222:00:162
31046995019,9cyclictest33-21ksoftirqd/220:00:242
3104699501,6cyclictest33-21ksoftirqd/220:25:002
3104699500,7cyclictest33-21ksoftirqd/221:00:172
3104799498,17cyclictest18065-21netstat23:10:243
3104799493,9cyclictest29271-21chrt20:11:023
3104799493,9cyclictest29271-21chrt20:11:013
3104799492,10cyclictest26397-21irqstats22:20:193
3104799491,17cyclictest18639-21irqrtprio19:50:183
3104699496,8cyclictest33-21ksoftirqd/221:05:172
3104699495,9cyclictest33-21ksoftirqd/223:15:262
3104699492,8cyclictest33-21ksoftirqd/220:20:002
3104699492,5cyclictest33-21ksoftirqd/219:50:172
31046994919,8cyclictest33-21ksoftirqd/222:55:172
3104699491,5cyclictest33-21ksoftirqd/200:35:282
31046994915,4cyclictest33-21ksoftirqd/220:40:242
3104799483,11cyclictest6671-21taskset20:31:193
3104799482,15cyclictest5699-21chrt23:52:333
3104799482,15cyclictest5699-21chrt23:52:333
3104799482,15cyclictest26110-21chrt23:26:513
3104799482,12cyclictest21973-21sed19:55:263
3104799482,12cyclictest1642-21df23:45:143
3104799481,16cyclictest28207-21timerandwakeup21:15:273
3104699485,9cyclictest33-21ksoftirqd/223:50:152
3104699485,9cyclictest33-21ksoftirqd/223:50:152
3104699485,9cyclictest33-21ksoftirqd/219:15:202
3104699485,4cyclictest33-21ksoftirqd/200:00:012
3104699482,9cyclictest33-21ksoftirqd/220:05:142
3104699482,8cyclictest33-21ksoftirqd/222:45:192
31046994824,9cyclictest33-21ksoftirqd/223:35:182
3104699480,7cyclictest33-21ksoftirqd/221:50:012
16702480,2sleep00-21swapper/019:15:180
3104799472,9cyclictest27152-21taskset20:09:093
3104799471,10cyclictest14549-21missed_timers00:10:223
3104699476,8cyclictest33-21ksoftirqd/222:25:142
3104699475,9cyclictest33-21ksoftirqd/223:40:272
3104699475,9cyclictest33-21ksoftirqd/222:20:162
3104699475,10cyclictest33-21ksoftirqd/220:55:152
3104699473,8cyclictest33-21ksoftirqd/200:25:272
3104799464,5cyclictest0-21swapper/321:35:173
3104799461,17cyclictest16017-21apt-key00:15:003
3104699465,7cyclictest0-21swapper/221:15:272
3104699464,8cyclictest33-21ksoftirqd/222:50:292
3104699464,10cyclictest33-21ksoftirqd/221:40:012
3104699460,6cyclictest33-21ksoftirqd/220:35:162
3104799458,15cyclictest7747-21sed22:50:153
3104799456,11cyclictest15094-21awk21:55:263
3104799455,5cyclictest0-21swapper/300:05:273
3104799451,17cyclictest27287-21cat00:35:263
3104699456,9cyclictest33-21ksoftirqd/222:40:272
31046994530,3cyclictest33-21ksoftirqd/222:00:012
3104799444,11cyclictest20490-21systemd-cgroups00:23:303
3104799444,10cyclictest23727-21taskset23:21:363
3104799440,8cyclictest24088-21ps00:30:183
31046994429,8cyclictest33-21ksoftirqd/220:10:122
31046994429,8cyclictest33-21ksoftirqd/220:10:122
3104699441,8cyclictest33-21ksoftirqd/219:30:132
3104799431,9cyclictest26615-21apt-get23:30:113
3104699434,9cyclictest33-21ksoftirqd/222:10:002
3104699432,9cyclictest33-21ksoftirqd/223:20:182
139391430,0ptp4l401ktimersoftd/323:07:063
139391430,0ptp4l401ktimersoftd/321:02:303
3104799423,17cyclictest12770-21chrt19:37:253
3104799422,9cyclictest7000-21taskset22:48:313
3104799422,12cyclictest9418-21cat20:40:003
3104799422,10cyclictest8051-21taskset19:28:173
139391420,0ptp4l401ktimersoftd/320:52:233
3104799416,11cyclictest2685-21grep22:40:133
3104799414,11cyclictest18527-21chrt20:55:383
3104799413,15cyclictest7896-21taskset23:55:293
139391410,0ptp4l401ktimersoftd/320:46:053
3104799404,10cyclictest20307-21chrt22:07:563
3104799403,11cyclictest13251-21chrt21:53:473
3104799401,14cyclictest3536-21apt-config19:20:003
3104799394,10cyclictest2102-21seq22:37:213
3104799394,10cyclictest2102-21seq22:37:213
3104799393,11cyclictest10578-21taskset21:45:373
3104799393,10cyclictest22814-21chrt22:14:463
3104799391,9cyclictest2319-21ps21:30:343
31044993931,6cyclictest9-21ksoftirqd/021:02:020
3104799382,9cyclictest31138-21chrt21:24:193
3104799382,14cyclictest10630-21chrt00:04:503
3104699385,3cyclictest33-21ksoftirqd/223:30:272
3104799372,9cyclictest31878-21chrt20:18:523
3104799371,11cyclictest25937-21cat21:10:253
31045993715,4cyclictest2640-21grep20:25:131
31044993722,5cyclictest9-21ksoftirqd/000:05:260
31045993630,4cyclictest25-21ksoftirqd/122:35:301
31045993630,4cyclictest25-21ksoftirqd/122:35:301
31045993630,4cyclictest25-21ksoftirqd/120:32:381
31045993630,4cyclictest25-21ksoftirqd/120:11:291
31045993630,4cyclictest25-21ksoftirqd/120:11:281
3104599360,1cyclictest0-21swapper/100:24:131
31044993614,19cyclictest20431-21netstat23:15:230
31045993530,3cyclictest25-21ksoftirqd/119:10:111
31045993529,4cyclictest25-21ksoftirqd/123:33:331
31045993529,4cyclictest25-21ksoftirqd/121:34:441
31045993529,4cyclictest25-21ksoftirqd/120:54:321
31045993529,4cyclictest25-21ksoftirqd/120:04:421
31045993529,4cyclictest25-21ksoftirqd/119:51:181
31045993529,4cyclictest25-21ksoftirqd/119:36:501
31045993529,4cyclictest25-21ksoftirqd/100:32:271
31045993529,4cyclictest25-21ksoftirqd/100:07:481
31045993528,4cyclictest25-21ksoftirqd/100:18:191
31044993528,4cyclictest9-21ksoftirqd/023:24:070
31044993514,18cyclictest2696-21ptp4l23:45:240
31044993514,18cyclictest13348-21open_files23:00:240
31044993513,19cyclictest6202-21sendmail_mailst20:30:250
31044993512,20cyclictest27996-21sed00:40:000
31044993511,22cyclictest27391-21cut21:15:200
31044993511,21cyclictest10825-21cat22:55:220
3104799348,10cyclictest3055-21chrt19:17:543
31047993428,4cyclictest41-21ksoftirqd/322:34:353
31045993430,3cyclictest25-21ksoftirqd/123:52:291
31045993430,3cyclictest25-21ksoftirqd/123:52:291
31045993429,3cyclictest25-21ksoftirqd/122:44:551
31045993428,4cyclictest25-21ksoftirqd/123:07:031
31045993428,4cyclictest25-21ksoftirqd/121:27:101
31045993428,4cyclictest25-21ksoftirqd/120:18:461
31045993427,5cyclictest25-21ksoftirqd/119:30:481
31045993427,4cyclictest25-21ksoftirqd/122:50:341
31045993427,4cyclictest25-21ksoftirqd/100:35:491
31044993429,3cyclictest9-21ksoftirqd/022:24:590
31044993428,4cyclictest9-21ksoftirqd/022:50:570
31044993428,4cyclictest9-21ksoftirqd/022:13:330
31044993428,4cyclictest9-21ksoftirqd/019:46:510
3104499342,29cyclictest20180-21sort19:55:010
31044993411,20cyclictest25398-21seq00:33:030
31044993411,20cyclictest21328-21latency19:55:190
3104799334,13cyclictest10193-21chrt19:30:303
3104799333,10cyclictest7592-21awk21:40:213
31047993328,3cyclictest41-21ksoftirqd/323:42:593
31045993327,4cyclictest25-21ksoftirqd/123:26:441
31045993327,4cyclictest25-21ksoftirqd/122:07:491
31045993327,4cyclictest25-21ksoftirqd/121:35:321
31045993327,4cyclictest25-21ksoftirqd/121:15:341
31045993327,4cyclictest25-21ksoftirqd/120:37:431
31045993327,4cyclictest25-21ksoftirqd/119:25:021
31045993327,4cyclictest25-21ksoftirqd/100:03:431
31045993326,4cyclictest25-21ksoftirqd/123:15:291
31044993327,4cyclictest9-21ksoftirqd/023:59:210
31044993327,4cyclictest9-21ksoftirqd/021:13:490
31044993327,4cyclictest9-21ksoftirqd/019:24:180
31044993327,4cyclictest9-21ksoftirqd/000:25:130
31044993327,4cyclictest9-21ksoftirqd/000:11:250
31044993314,17cyclictest15368-21sh19:45:000
31044993314,17cyclictest15368-21sh19:45:000
31044993311,19cyclictest22732-21bc20:00:110
31044993310,3cyclictest8925-21cpuspeed_turbos21:45:150
139391330,1ptp4l391rcuc/320:25:563
31045993227,3cyclictest25-21ksoftirqd/122:57:551
31045993227,3cyclictest25-21ksoftirqd/121:23:411
31045993226,4cyclictest25-21ksoftirqd/120:41:041
3104499327,3cyclictest7465-21meminfo21:40:190
31044993227,3cyclictest9-21ksoftirqd/022:04:590
31044993227,3cyclictest9-21ksoftirqd/020:22:180
31044993226,4cyclictest9-21ksoftirqd/023:10:550
31044993226,4cyclictest9-21ksoftirqd/022:27:380
31044993226,4cyclictest9-21ksoftirqd/021:50:310
31044993226,4cyclictest9-21ksoftirqd/020:41:030
31044993225,4cyclictest9-21ksoftirqd/021:06:390
31044993225,4cyclictest9-21ksoftirqd/019:12:580
31044993213,17cyclictest8714-21timedrift20:35:250
31044993211,3cyclictest1317-21runrttasks00:16:420
3104799314,13cyclictest1651-21chrt20:21:083
3104799314,12cyclictest11747-21chrt20:44:393
3104799313,12cyclictest24708-21chrt20:03:113
31047993125,4cyclictest41-21ksoftirqd/319:11:323
3104799311,7cyclictest17859-21taskset22:02:023
31045993126,3cyclictest25-21ksoftirqd/123:47:161
31045993126,3cyclictest25-21ksoftirqd/121:57:081
31045993125,4cyclictest25-21ksoftirqd/123:39:151
31045993125,4cyclictest25-21ksoftirqd/122:13:111
31045993125,4cyclictest25-21ksoftirqd/121:50:391
31045993125,4cyclictest25-21ksoftirqd/121:40:421
31045993125,4cyclictest25-21ksoftirqd/121:11:251
31045993124,5cyclictest25-21ksoftirqd/122:32:401
3104499319,3cyclictest5983-21sed23:55:010
3104499319,3cyclictest5983-21sed23:55:010
3104499318,3cyclictest31793-21timerwakeupswit22:30:270
3104499318,3cyclictest17337-21if_enp4s020:55:160
3104499317,4cyclictest27490-21cpu20:10:120
3104499317,4cyclictest27490-21cpu20:10:120
31044993126,3cyclictest9-21ksoftirqd/022:47:220
31044993126,3cyclictest9-21ksoftirqd/022:44:340
31044993126,3cyclictest9-21ksoftirqd/021:21:150
31044993126,3cyclictest9-21ksoftirqd/020:50:500
31044993126,3cyclictest9-21ksoftirqd/020:18:580
31044993125,4cyclictest9-21ksoftirqd/023:25:430
31044993125,4cyclictest9-21ksoftirqd/023:08:020
31044993125,4cyclictest9-21ksoftirqd/021:56:490
31044993123,5cyclictest9-21ksoftirqd/000:24:480
31044993111,3cyclictest4802-21cut21:35:180
3104799301,5cyclictest41-21ksoftirqd/323:04:523
31045993025,3cyclictest27225-21sh20:10:001
31045993025,3cyclictest25-21ksoftirqd/121:08:561
31045993024,4cyclictest25-21ksoftirqd/123:44:131
31045993024,4cyclictest25-21ksoftirqd/120:24:231
3104499309,3cyclictest29459-21fschecks_time23:35:170
3104499309,3cyclictest19047-21irqrtprio22:05:200
3104499307,3cyclictest7602-21timerandwakeup19:25:250
31044993025,3cyclictest9-21ksoftirqd/023:31:290
31044993025,3cyclictest9-21ksoftirqd/019:38:020
31044993025,3cyclictest9-21ksoftirqd/019:32:090
31044993024,4cyclictest9-21ksoftirqd/022:38:330
31044993024,4cyclictest9-21ksoftirqd/022:38:330
31044993024,4cyclictest9-21ksoftirqd/020:07:130
3104499300,2cyclictest0-21swapper/022:15:280
31047992923,4cyclictest41-21ksoftirqd/322:28:493
31045992924,3cyclictest25-21ksoftirqd/122:16:011
31045992924,3cyclictest25-21ksoftirqd/100:12:491
31045992923,4cyclictest25-21ksoftirqd/120:55:321
31045992923,4cyclictest25-21ksoftirqd/119:48:171
3104499298,3cyclictest9-21ksoftirqd/000:00:120
3104499296,3cyclictest31962-21hwlatdetect21:25:160
3104499296,3cyclictest2299-21apt-key20:25:010
3104499295,3cyclictest12641-21/usr/sbin/munin20:45:170
31045992823,3cyclictest25-21ksoftirqd/123:00:161
31045992823,3cyclictest25-21ksoftirqd/121:03:471
31045992822,4cyclictest25-21ksoftirqd/122:00:431
31045992822,4cyclictest25-21ksoftirqd/119:22:451
31045992822,4cyclictest25-21ksoftirqd/100:00:001
31045992821,5cyclictest25-21ksoftirqd/119:57:521
3104499287,3cyclictest589-21grep23:40:280
31045992722,3cyclictest25-21ksoftirqd/123:14:091
31045992722,3cyclictest25-21ksoftirqd/122:23:431
31045992722,3cyclictest25-21ksoftirqd/100:28:581
3104499275,3cyclictest207-21systemd-journal21:30:060
3104599240,23cyclictest0-21swapper/122:25:281
31045992318,3cyclictest25-21ksoftirqd/121:49:511
31045992318,3cyclictest25-21ksoftirqd/119:40:291
31045992318,3cyclictest25-21ksoftirqd/119:40:291
31045992219,2cyclictest0-21swapper/123:20:331
31045991610,4cyclictest12233-21cstates20:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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