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2026-03-28 - 07:30
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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 Sat Mar 28, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2248521670,5sleep01487399cyclictest21:45:130
2826121620,3sleep21487599cyclictest00:15:142
1487399712,26cyclictest22281-21sed20:35:150
14873997113,19cyclictest1317-21runrttasks00:36:420
14874996927,8cyclictest25-21ksoftirqd/100:37:431
1487399686,22cyclictest26335-21timerandwakeup23:00:260
14874996635,3cyclictest25-21ksoftirqd/123:20:011
134491660,4ptp4l0-21swapper/119:24:071
14874996435,7cyclictest25-21ksoftirqd/120:25:001
14874996333,8cyclictest25-21ksoftirqd/122:10:011
14874996332,4cyclictest25-21ksoftirqd/121:15:001
118022630,5sleep10-21swapper/122:30:191
14874996230,4cyclictest25-21ksoftirqd/100:30:161
14874996229,8cyclictest25-21ksoftirqd/120:20:001
14874996226,10cyclictest25-21ksoftirqd/119:30:251
1487599615,54cyclictest0-21swapper/222:55:292
14874996128,7cyclictest25-21ksoftirqd/122:40:011
14874996127,4cyclictest25-21ksoftirqd/121:00:001
14874996124,8cyclictest25-21ksoftirqd/123:25:231
14874996031,7cyclictest25-21ksoftirqd/100:00:011
14874996028,4cyclictest25-21ksoftirqd/120:40:201
14874996024,4cyclictest25-21ksoftirqd/120:35:221
14874996023,8cyclictest25-21ksoftirqd/120:30:171
1487599592,37cyclictest0-21swapper/219:45:172
14874995931,7cyclictest25-21ksoftirqd/119:50:001
14874995928,8cyclictest25-21ksoftirqd/120:55:001
14874995927,7cyclictest25-21ksoftirqd/120:50:001
14874995926,4cyclictest25-21ksoftirqd/119:35:281
14874995925,4cyclictest25-21ksoftirqd/121:05:231
14874995923,9cyclictest25-21ksoftirqd/123:25:001
1487399592,35cyclictest17615-21seq22:43:540
1487699585,12cyclictest1354-21taskset22:08:433
14874995830,6cyclictest25-21ksoftirqd/122:00:001
14874995826,4cyclictest25-21ksoftirqd/121:30:201
14874995826,4cyclictest25-21ksoftirqd/100:25:141
14874995825,8cyclictest25-21ksoftirqd/120:00:271
14874995825,4cyclictest25-21ksoftirqd/100:25:011
14874995824,10cyclictest25-21ksoftirqd/100:15:121
14874995823,9cyclictest25-21ksoftirqd/123:10:151
14874995823,8cyclictest25-21ksoftirqd/100:00:261
14874995820,10cyclictest25-21ksoftirqd/119:55:271
1487699576,12cyclictest7882-21taskset21:12:513
1487599573,5cyclictest33-21ksoftirqd/223:25:002
14874995728,6cyclictest25-21ksoftirqd/122:25:181
14874995728,3cyclictest25-21ksoftirqd/122:20:191
14874995727,7cyclictest25-21ksoftirqd/123:07:031
14874995727,4cyclictest25-21ksoftirqd/122:45:011
14874995726,7cyclictest25-21ksoftirqd/121:40:011
14874995726,7cyclictest25-21ksoftirqd/120:25:161
14874995726,4cyclictest25-21ksoftirqd/122:15:111
14874995725,7cyclictest25-21ksoftirqd/123:35:301
14874995723,8cyclictest25-21ksoftirqd/123:40:241
14874995719,9cyclictest25-21ksoftirqd/122:50:001
14874995719,7cyclictest25-21ksoftirqd/123:00:011
134491570,3ptp4l0-21swapper/123:30:431
1487699566,17cyclictest25620-21chrt00:10:023
1487699564,12cyclictest16691-21taskset19:11:043
14875995629,4cyclictest33-21ksoftirqd/223:01:132
14875995628,4cyclictest33-21ksoftirqd/222:19:042
14874995628,6cyclictest25-21ksoftirqd/119:10:241
14874995628,3cyclictest25-21ksoftirqd/121:40:161
14874995627,7cyclictest25-21ksoftirqd/121:50:001
14874995627,3cyclictest25-21ksoftirqd/121:20:171
14874995625,8cyclictest25-21ksoftirqd/120:15:001
14874995625,3cyclictest25-21ksoftirqd/100:10:241
14874995624,7cyclictest25-21ksoftirqd/123:45:191
14874995624,4cyclictest25-21ksoftirqd/123:00:151
14874995624,4cyclictest25-21ksoftirqd/121:00:241
14874995622,4cyclictest25-21ksoftirqd/119:50:151
14874995618,8cyclictest25-21ksoftirqd/122:15:001
1487699558,10cyclictest25321-21taskset00:09:033
1487599554,9cyclictest33-21ksoftirqd/222:50:282
1487599553,6cyclictest33-21ksoftirqd/222:20:162
1487599553,6cyclictest33-21ksoftirqd/200:05:272
1487599552,28cyclictest0-21swapper/221:30:212
14874995527,7cyclictest25-21ksoftirqd/119:15:161
14874995526,7cyclictest25-21ksoftirqd/121:25:141
14874995524,3cyclictest25-21ksoftirqd/120:05:201
14874995523,8cyclictest25-21ksoftirqd/122:50:201
14874995520,10cyclictest25-21ksoftirqd/122:00:271
134491550,5ptp4l0-21swapper/119:25:181
134491550,3ptp4l0-21swapper/022:07:520
134491550,3ptp4l0-21swapper/019:14:470
134491550,2ptp4l0-21swapper/021:34:310
1487699546,9cyclictest29607-21ls22:00:133
1487599545,8cyclictest33-21ksoftirqd/219:10:272
1487599542,7cyclictest33-21ksoftirqd/221:55:272
1487599542,34cyclictest0-21swapper/219:30:162
14874995429,7cyclictest25-21ksoftirqd/121:55:001
14874995424,4cyclictest25-21ksoftirqd/121:15:361
14874995423,7cyclictest25-21ksoftirqd/123:50:191
14874995421,6cyclictest25-21ksoftirqd/119:40:161
14874995420,8cyclictest25-21ksoftirqd/100:05:201
134491540,3ptp4l0-21swapper/021:58:220
1487599535,4cyclictest33-21ksoftirqd/222:40:242
1487599533,7cyclictest33-21ksoftirqd/222:35:172
1487599533,6cyclictest33-21ksoftirqd/200:00:262
1487599533,6cyclictest1788-21sh21:00:162
1487599532,34cyclictest0-21swapper/222:05:152
1487699528,6cyclictest0-21swapper/323:40:123
1487599522,8cyclictest33-21ksoftirqd/219:35:142
1487599522,7cyclictest33-21ksoftirqd/223:10:262
1487599522,6cyclictest33-21ksoftirqd/223:50:262
1487599522,6cyclictest33-21ksoftirqd/200:30:012
1487599522,33cyclictest0-21swapper/220:45:202
1487599522,31cyclictest0-21swapper/221:10:172
1487599522,10cyclictest33-21ksoftirqd/200:10:122
1487599521,8cyclictest33-21ksoftirqd/221:20:142
1487599521,6cyclictest33-21ksoftirqd/223:40:132
1487599514,10cyclictest33-21ksoftirqd/220:15:172
1487599512,6cyclictest33-21ksoftirqd/223:05:292
1487599512,6cyclictest33-21ksoftirqd/221:45:142
1487599512,32cyclictest0-21swapper/222:25:142
1487599511,6cyclictest33-21ksoftirqd/223:45:162
1487599511,6cyclictest33-21ksoftirqd/219:55:262
1487699507,10cyclictest12427-21taskset20:14:083
1487699504,16cyclictest6834-21taskset00:39:433
1487699502,14cyclictest13111-21taskset21:25:063
1487599504,4cyclictest33-21ksoftirqd/200:35:262
1487599504,10cyclictest33-21ksoftirqd/223:35:302
14875995033,6cyclictest33-21ksoftirqd/219:45:012
1487599503,12cyclictest33-21ksoftirqd/223:30:282
1487599502,6cyclictest0-21swapper/219:50:142
1487599501,6cyclictest33-21ksoftirqd/220:50:262
1487599500,6cyclictest33-21ksoftirqd/220:35:292
1487399500,4cyclictest18541-21ntp_states20:25:240
134491500,5ptp4l0-21swapper/119:07:261
1487699496,6cyclictest31393-21cpuspeed_turbos20:55:133
1487699496,5cyclictest13214-21idleruntime20:15:153
1487699493,10cyclictest25433-21ntpq20:40:203
1487699491,9cyclictest0-21swapper/320:45:223
1487699491,11cyclictest21076-21df_abs00:00:153
1487599496,4cyclictest33-21ksoftirqd/222:10:162
1487599494,8cyclictest10546-21dpkg21:20:002
1487599493,8cyclictest33-21ksoftirqd/221:25:172
1487599493,7cyclictest0-21swapper/200:31:192
1487599492,7cyclictest0-21swapper/223:15:122
1487599492,6cyclictest33-21ksoftirqd/220:55:162
1487599492,6cyclictest0-21swapper/220:25:172
1487599490,7cyclictest33-21ksoftirqd/223:55:252
1487599490,6cyclictest33-21ksoftirqd/222:30:192
1487599490,6cyclictest33-21ksoftirqd/220:00:252
1487699488,7cyclictest0-21swapper/321:45:353
1487699488,11cyclictest12736-21seq22:31:223
1487699487,13cyclictest0-21swapper/323:00:153
1487699481,15cyclictest0-21swapper/321:09:043
1487599483,6cyclictest33-21ksoftirqd/220:10:012
1487599482,6cyclictest33-21ksoftirqd/222:00:132
1487599482,6cyclictest0-21swapper/220:20:152
1487699478,6cyclictest0-21swapper/320:00:153
1487699478,11cyclictest10460-21seq22:26:373
1487699477,11cyclictest28418-21taskset19:38:533
1487699475,11cyclictest0-21swapper/323:30:273
1487699475,10cyclictest32765-21chrt19:45:333
1487699474,40cyclictest107842chrt23:36:043
1487699474,11cyclictest23938-21taskset20:38:233
1487699471,16cyclictest0-21swapper/323:54:283
1487599475,9cyclictest33-21ksoftirqd/200:20:252
1487599473,3cyclictest33-21ksoftirqd/219:20:242
1487599472,6cyclictest33-21ksoftirqd/219:25:192
1487599472,6cyclictest0-21swapper/220:10:132
1487599471,6cyclictest33-21ksoftirqd/221:05:152
1487599471,6cyclictest33-21ksoftirqd/220:45:012
1487599471,6cyclictest33-21ksoftirqd/220:30:132
134491470,5ptp4l0-21swapper/019:07:200
1487699469,11cyclictest4012-21seq23:25:063
1487699469,11cyclictest19316-21seq20:28:023
1487699468,11cyclictest15299-21seq22:39:363
1487699467,9cyclictest19692-21taskset21:38:123
1487699464,7cyclictest8887-21/usr/sbin/munin20:05:203
1487699463,10cyclictest269192sleep321:54:343
1487699462,21cyclictest0-21swapper/323:07:103
1487599464,9cyclictest33-21ksoftirqd/222:45:172
1487599462,5cyclictest33-21ksoftirqd/221:35:182
134491460,5ptp4l0-21swapper/319:09:323
134491460,4ptp4l0-21swapper/022:10:530
1487699458,6cyclictest0-21swapper/323:10:243
1487699458,11cyclictest23912-21seq19:29:583
1487699457,11cyclictest3257-21taskset21:02:263
1487699457,11cyclictest29776-21taskset00:17:223
1487699457,11cyclictest29124-21taskset21:58:243
1487699457,10cyclictest21810-21taskset21:40:443
1487699453,10cyclictest21515-21taskset19:23:393
1487699452,4cyclictest0-21swapper/319:30:153
1487599453,5cyclictest33-21ksoftirqd/221:40:142
134491450,4ptp4l4070-21apt-get22:15:103
134491450,3ptp4l1487699cyclictest20:34:343
134491450,10ptp4l0-21swapper/000:10:400
1487699448,7cyclictest1567-21cat23:20:013
1487699448,10cyclictest32186-21seq00:23:303
1487699446,11cyclictest12777-21taskset21:23:403
1487699445,10cyclictest17413-21chrt22:41:243
1487699440,10cyclictest0-21swapper/320:21:353
134491440,5ptp4l0-21swapper/319:40:123
134491440,4ptp4l4033-21apt-get23:25:100
134491440,4ptp4l111rcuc/019:20:180
1487699437,11cyclictest1986-21taskset00:27:083
1487699437,10cyclictest5354-21taskset19:59:513
1487699435,15cyclictest8375-21taskset22:24:153
134491430,9ptp4l0-21swapper/020:23:510
134491430,8ptp4l111rcuc/023:15:260
134491430,6ptp4l3707-21apt-get21:05:110
134491430,5ptp4l27168-21apt-get23:05:130
134491430,5ptp4l0-21swapper/321:30:133
134491430,4ptp4l11372-21apt-get23:40:100
134491430,3ptp4l0-21swapper/022:28:380
134491430,2ptp4l111rcuc/022:59:270
1487699428,11cyclictest20304-21taskset23:59:123
1487699427,9cyclictest22011-21taskset22:51:293
1487699427,10cyclictest3460-21taskset22:10:303
1487699426,11cyclictest0-21swapper/300:30:163
1487699424,12cyclictest19094-21chrt19:17:213
1487599422,30cyclictest0-21swapper/219:15:132
1487599420,6cyclictest33-21ksoftirqd/221:50:232
1487399423,17cyclictest134491ptp4l21:20:230
134491420,9ptp4l0-21swapper/021:42:010
134491420,9ptp4l0-21swapper/021:39:520
134491420,5ptp4l0-21swapper/000:25:180
134491420,4ptp4l9054-21apt-get23:35:140
134491420,4ptp4l6086-21apt-get23:30:010
134491420,4ptp4l26465-21apt-get19:35:130
134491420,4ptp4l13670-21apt-get23:45:120
1487699417,10cyclictest30684-21taskset20:51:263
1487699414,16cyclictest24551-21chrt22:59:293
1487699414,12cyclictest10007-21chrt21:15:433
1487599416,7cyclictest33-21ksoftirqd/223:25:242
134491410,5ptp4l30805-21python23:10:260
134491410,4ptp4l31073-21apt-get19:45:120
134491410,4ptp4l11568-21ntp_states20:10:230
134491410,4ptp4l0-21swapper/020:55:240
134491410,4ptp4l0-21swapper/000:05:110
134491410,3ptp4l6390-21apt-get22:20:120
134491410,3ptp4l11415-21hddtemp_smartct22:30:160
1487699406,11cyclictest19837-21taskset22:47:563
1487399401,3cyclictest134491ptp4l19:18:000
134491400,6ptp4l0-21swapper/219:09:362
134491400,5ptp4l3673-21latency_hist21:05:010
134491400,5ptp4l0-21swapper/021:25:110
134491400,4ptp4l2511-21apt-get00:30:130
134491400,4ptp4l22441-21iostat19:25:180
134491400,4ptp4l20677-21meminfo20:30:240
134491400,4ptp4l0-21swapper/022:35:160
134491400,4ptp4l0-21swapper/022:16:260
134491400,4ptp4l0-21swapper/020:47:000
134491400,4ptp4l0-21swapper/019:59:540
134491400,4ptp4l0-21swapper/019:30:260
134491400,4ptp4l0-21swapper/000:20:200
134491400,4ptp4l0-21swapper/000:19:510
134491400,3ptp4l20855-21apt-get00:00:120
134491400,3ptp4l16597-21iostat_ios23:50:180
1487399390,3cyclictest6119-21/usr/sbin/munin20:00:170
134491390,5ptp4l0-21swapper/021:10:210
134491390,5ptp4l0-21swapper/020:05:170
134491390,4ptp4l29732-21df22:00:140
134491390,4ptp4l19437-21ntp_states23:55:220
134491390,4ptp4l0-21swapper/323:48:113
134491390,4ptp4l0-21swapper/323:23:413
134491390,4ptp4l0-21swapper/023:20:200
134491390,4ptp4l0-21swapper/020:50:220
134491390,4ptp4l0-21swapper/019:41:510
134491390,3ptp4l8301-21apt-get21:15:110
134491390,3ptp4l0-21swapper/022:46:060
1487699383,10cyclictest2788-21runrttasks19:51:283
134491380,4ptp4l0-21swapper/022:50:040
134491380,4ptp4l0-21swapper/020:40:120
134491380,4ptp4l0-21swapper/020:16:360
134491380,4ptp4l0-21swapper/019:50:200
134491380,3ptp4l0-21swapper/021:50:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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