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2026-09-19 - 11:03
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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 rackdslot2.osadl.org (updated Sat Sep 19, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219342219150,23sleep10-21swapper/119:06:021
139591208175,22phc2sys0-21swapper/319:08:473
220282205171,23sleep20-21swapper/219:07:162
219682205171,22sleep00-21swapper/019:06:290
336521500,4sleep22253599cyclictest21:50:232
2224028564,11sleep20-21swapper/219:10:012
1395918263,11phc2sys0-21swapper/319:10:013
22535996330,4cyclictest33-21ksoftirqd/223:10:192
22535996126,6cyclictest33-21ksoftirqd/221:00:142
22535996125,3cyclictest33-21ksoftirqd/219:35:212
22535996125,3cyclictest33-21ksoftirqd/219:35:212
2253399613,12cyclictest23109-21grep23:40:180
22535996030,3cyclictest33-21ksoftirqd/200:30:152
22535996028,4cyclictest33-21ksoftirqd/223:40:252
22535996028,3cyclictest33-21ksoftirqd/223:25:132
22535996028,3cyclictest33-21ksoftirqd/223:25:132
2253399602,11cyclictest30638-21latency_hist20:35:000
22535995932,6cyclictest33-21ksoftirqd/222:10:232
22535995931,7cyclictest33-21ksoftirqd/221:30:222
22535995930,21cyclictest33-21ksoftirqd/223:00:262
22535995928,4cyclictest33-21ksoftirqd/219:55:142
22535995926,4cyclictest33-21ksoftirqd/220:35:212
22535995924,5cyclictest33-21ksoftirqd/222:55:142
22535995924,5cyclictest33-21ksoftirqd/222:55:132
22535995923,6cyclictest33-21ksoftirqd/222:50:132
22535995923,4cyclictest33-21ksoftirqd/200:25:252
22535995922,4cyclictest33-21ksoftirqd/200:00:242
22535995920,6cyclictest33-21ksoftirqd/219:45:122
22535995918,6cyclictest33-21ksoftirqd/200:00:012
22535995918,6cyclictest33-21ksoftirqd/200:00:002
22535995831,7cyclictest33-21ksoftirqd/223:30:132
22535995828,4cyclictest33-21ksoftirqd/200:05:192
22535995827,8cyclictest33-21ksoftirqd/220:15:232
22535995827,4cyclictest33-21ksoftirqd/223:15:002
22535995826,4cyclictest33-21ksoftirqd/220:05:262
22535995824,6cyclictest33-21ksoftirqd/222:30:002
22535995824,6cyclictest33-21ksoftirqd/220:40:132
22535995823,4cyclictest33-21ksoftirqd/221:45:222
22535995821,6cyclictest33-21ksoftirqd/222:30:142
22535995821,4cyclictest33-21ksoftirqd/223:50:232
22535995819,7cyclictest33-21ksoftirqd/221:15:142
2253399583,12cyclictest12946-21mailstats22:10:250
22535995734,6cyclictest33-21ksoftirqd/221:55:132
22535995731,7cyclictest33-21ksoftirqd/222:35:232
22535995731,6cyclictest33-21ksoftirqd/200:10:132
22535995729,7cyclictest33-21ksoftirqd/221:05:262
22535995728,7cyclictest33-21ksoftirqd/219:15:152
22535995724,3cyclictest33-21ksoftirqd/222:15:262
2253399573,17cyclictest9999-21irqrtprio22:05:190
22535995630,7cyclictest33-21ksoftirqd/219:20:192
22535995629,7cyclictest33-21ksoftirqd/220:25:142
22535995626,7cyclictest33-21ksoftirqd/221:20:122
22535995625,7cyclictest33-21ksoftirqd/220:30:242
22535995624,7cyclictest33-21ksoftirqd/220:00:182
22535995624,3cyclictest33-21ksoftirqd/220:20:182
22535995620,6cyclictest33-21ksoftirqd/223:05:082
22535995619,5cyclictest33-21ksoftirqd/221:10:222
22535995618,6cyclictest33-21ksoftirqd/222:25:012
22535995618,6cyclictest33-21ksoftirqd/222:25:012
22535995618,6cyclictest33-21ksoftirqd/220:50:162
22535995617,7cyclictest33-21ksoftirqd/219:50:122
22535995617,6cyclictest33-21ksoftirqd/221:25:202
2253399563,11cyclictest8835-21sed00:15:280
2253399562,12cyclictest715-21latency_hist22:55:010
22535995530,7cyclictest33-21ksoftirqd/220:45:242
22535995529,7cyclictest33-21ksoftirqd/219:40:042
22535995528,3cyclictest33-21ksoftirqd/220:10:222
22535995527,4cyclictest33-21ksoftirqd/223:23:082
22535995526,7cyclictest33-21ksoftirqd/222:01:232
22535995525,3cyclictest33-21ksoftirqd/222:45:182
22535995523,4cyclictest33-21ksoftirqd/222:40:282
22535995521,5cyclictest33-21ksoftirqd/221:40:142
22535995517,8cyclictest33-21ksoftirqd/219:25:012
2253399553,10cyclictest3156-21irqrtprio19:35:210
2253399553,10cyclictest3156-21irqrtprio19:35:210
2253399552,17cyclictest8003-21egrep23:10:130
2253399552,10cyclictest32391-21fschecks_count21:45:160
22535995428,7cyclictest33-21ksoftirqd/219:35:012
22535995426,7cyclictest33-21ksoftirqd/200:15:202
22535995420,4cyclictest33-21ksoftirqd/221:35:162
22535995419,4cyclictest33-21ksoftirqd/223:45:222
22535995418,6cyclictest33-21ksoftirqd/223:35:252
2253399542,16cyclictest783-21/usr/sbin/munin20:40:270
2253399540,15cyclictest0-21swapper/019:40:160
22535995327,7cyclictest33-21ksoftirqd/200:37:232
2253399536,11cyclictest18031-21uptime22:20:260
2253399536,11cyclictest18031-21uptime22:20:260
2253399532,11cyclictest30444-21irqrtprio23:55:200
2253399532,11cyclictest30444-21irqrtprio23:55:190
2253399531,11cyclictest8396-21cstates20:55:140
22535995221,7cyclictest33-21ksoftirqd/220:55:002
22535995217,6cyclictest33-21ksoftirqd/200:20:172
2253399513,15cyclictest10081-21apt-get23:15:010
139291510,1ptp4l391rcuc/319:49:413
22535995024,6cyclictest33-21ksoftirqd/222:06:262
2253399502,10cyclictest16753-21sed23:25:240
2253399502,10cyclictest16753-21sed23:25:240
22536994843,3cyclictest17400-21cron23:30:003
22536994843,3cyclictest17400-21cron23:30:003
2253399482,8cyclictest26355-21ls21:30:230
2253399481,16cyclictest0-21swapper/000:30:180
2253399481,14cyclictest11881-21apt-get00:25:130
2253399472,8cyclictest26096-21apt-get20:25:100
2253399472,7cyclictest9412-21apt-get19:50:090
2253399472,7cyclictest14174-21apt-get20:00:120
2253399472,14cyclictest3549-21ls00:05:270
2253399471,8cyclictest20124-21apt-get21:20:100
2253399462,8cyclictest30131-21hddtemp_smartct21:40:170
2253399462,7cyclictest17651-21apt-get23:30:120
22534994539,4cyclictest25-21ksoftirqd/122:41:241
2253399454,8cyclictest28345-21meminfo19:20:180
2253399451,7cyclictest11783-21apt-get19:55:110
139291450,1ptp4l0-21swapper/320:41:123
139291450,0ptp4l401ktimersoftd/322:10:023
2253399443,7cyclictest20136-21python22:25:240
2253399441,8cyclictest5203-21ps00:10:170
2253399441,7cyclictest30834-21apt-get20:35:120
2253399440,7cyclictest8619-21ls19:45:260
22536994338,3cyclictest41-21ksoftirqd/300:20:013
2253399432,8cyclictest949-21cstates22:55:130
2253399432,8cyclictest949-21cstates22:55:130
2253399431,8cyclictest27200-21apt-get23:50:120
2253399431,8cyclictest24125-21ps22:35:180
2253399431,7cyclictest16233-21irqstats21:10:190
139291430,0ptp4l401ktimersoftd/320:00:023
2253399422,8cyclictest10160-21iostat_ios00:20:170
2253399421,7cyclictest26068-21apt-get22:40:130
139291420,0ptp4l401ktimersoftd/321:48:453
139291420,0ptp4l401ktimersoftd/321:20:273
139291420,0ptp4l401ktimersoftd/321:09:593
139291420,0ptp4l401ktimersoftd/320:14:433
139291420,0ptp4l401ktimersoftd/319:57:083
2253399416,4cyclictest9-21ksoftirqd/023:22:330
2253399412,8cyclictest10954-21df_inode21:00:130
2253399411,8cyclictest24176-21fschecks_time20:20:150
2253399410,6cyclictest619-21ls00:00:210
139291410,0ptp4l401ktimersoftd/300:35:213
2253399402,14cyclictest1660-21sshd19:30:500
2253399402,11cyclictest6830-21processes23:05:220
2253399401,8cyclictest25944-21ls19:15:180
139291400,1ptp4l401ktimersoftd/321:32:423
22536993933,4cyclictest41-21ksoftirqd/321:20:013
22536993933,3cyclictest41-21ksoftirqd/323:40:133
22536993931,6cyclictest41-21ksoftirqd/323:05:013
22534993934,3cyclictest25-21ksoftirqd/120:00:011
2253399397,5cyclictest9-21ksoftirqd/021:36:580
2253399391,7cyclictest4451-21ps23:00:220
139291390,1ptp4l401ktimersoftd/322:52:263
139291390,0ptp4l401ktimersoftd/319:30:003
41298380,4rtkit-daemon11930-21diskstats22:10:161
22536993833,3cyclictest41-21ksoftirqd/323:40:003
22536993832,4cyclictest41-21ksoftirqd/320:34:533
22536993732,3cyclictest41-21ksoftirqd/323:48:393
22536993732,3cyclictest41-21ksoftirqd/322:32:243
22536993732,3cyclictest41-21ksoftirqd/319:51:053
22536993731,4cyclictest41-21ksoftirqd/300:26:493
22536993731,3cyclictest41-21ksoftirqd/322:20:113
22536993731,3cyclictest41-21ksoftirqd/322:20:113
22536993730,5cyclictest41-21ksoftirqd/300:14:463
22534993732,3cyclictest25-21ksoftirqd/100:00:101
22534993731,4cyclictest25-21ksoftirqd/100:26:151
22534993731,3cyclictest25-21ksoftirqd/123:30:001
22534993731,3cyclictest25-21ksoftirqd/123:30:001
22534993730,4cyclictest25-21ksoftirqd/121:08:581
22534993730,4cyclictest25-21ksoftirqd/119:31:251
2253399378,4cyclictest9-21ksoftirqd/020:13:230
2253399377,4cyclictest9-21ksoftirqd/021:16:450
2253399375,5cyclictest0-21swapper/023:35:140
2253399372,7cyclictest5048-21sshd20:46:020
2253399371,7cyclictest5993-21diskstats20:50:140
2253399370,7cyclictest22944-21df_inode19:10:140
41298360,2rtkit-daemon0-21swapper/123:45:441
41298360,2rtkit-daemon0-21swapper/122:49:301
22536993631,3cyclictest41-21ksoftirqd/322:45:113
22536993631,3cyclictest41-21ksoftirqd/322:00:033
22536993631,3cyclictest41-21ksoftirqd/320:59:383
22536993630,4cyclictest41-21ksoftirqd/323:58:123
22536993630,4cyclictest41-21ksoftirqd/323:58:123
22536993630,4cyclictest41-21ksoftirqd/323:51:153
22536993630,4cyclictest41-21ksoftirqd/322:09:543
22536993630,4cyclictest41-21ksoftirqd/320:50:003
22536993630,4cyclictest41-21ksoftirqd/319:42:463
22534993631,3cyclictest25-21ksoftirqd/120:10:121
22534993631,3cyclictest25-21ksoftirqd/119:11:241
22534993630,4cyclictest25-21ksoftirqd/123:40:291
22534993630,4cyclictest25-21ksoftirqd/122:15:571
22534993630,4cyclictest25-21ksoftirqd/100:39:251
22534993630,3cyclictest25-21ksoftirqd/120:16:421
22533993631,3cyclictest9-21ksoftirqd/021:50:110
22533993630,4cyclictest9-21ksoftirqd/020:06:030
2253399361,9cyclictest13594-21iostat_ios21:05:190
22536993530,3cyclictest41-21ksoftirqd/322:19:193
22536993530,3cyclictest41-21ksoftirqd/320:08:453
22536993530,3cyclictest41-21ksoftirqd/319:22:143
22536993530,3cyclictest41-21ksoftirqd/300:21:003
22536993530,3cyclictest18735-21kworker/3:021:40:133
22536993529,4cyclictest41-21ksoftirqd/321:54:403
22536993529,4cyclictest41-21ksoftirqd/321:38:243
22536993529,3cyclictest41-21ksoftirqd/320:53:333
22534993530,3cyclictest25-21ksoftirqd/123:09:561
22534993529,4cyclictest25-21ksoftirqd/123:04:441
22534993529,4cyclictest25-21ksoftirqd/122:51:311
22534993529,4cyclictest25-21ksoftirqd/121:04:131
22534993529,4cyclictest25-21ksoftirqd/120:28:581
22534993529,4cyclictest25-21ksoftirqd/119:19:541
22534993528,4cyclictest25-21ksoftirqd/121:59:291
22534993528,4cyclictest25-21ksoftirqd/119:50:071
22534993528,4cyclictest25-21ksoftirqd/119:35:051
22534993528,4cyclictest25-21ksoftirqd/119:35:051
2253399350,7cyclictest25755-21irqstats23:45:180
22536993429,3cyclictest41-21ksoftirqd/322:25:123
22536993429,3cyclictest41-21ksoftirqd/322:00:003
22536993429,3cyclictest41-21ksoftirqd/320:25:103
22536993429,3cyclictest41-21ksoftirqd/319:36:263
22536993429,3cyclictest41-21ksoftirqd/319:36:253
22536993428,4cyclictest41-21ksoftirqd/319:27:303
22536993428,4cyclictest41-21ksoftirqd/300:02:383
22536993428,3cyclictest41-21ksoftirqd/323:30:183
22534993429,3cyclictest25-21ksoftirqd/100:06:491
22534993428,4cyclictest25-21ksoftirqd/121:44:191
22534993428,4cyclictest25-21ksoftirqd/120:39:401
22534993428,4cyclictest25-21ksoftirqd/120:04:391
22534993428,4cyclictest25-21ksoftirqd/119:28:531
22534993428,3cyclictest25-21ksoftirqd/100:20:191
22534993427,4cyclictest25-21ksoftirqd/121:50:571
22534993427,4cyclictest25-21ksoftirqd/121:18:081
22534993427,4cyclictest25-21ksoftirqd/120:48:321
22534993427,4cyclictest25-21ksoftirqd/120:08:151
22536993328,3cyclictest41-21ksoftirqd/300:30:123
22536993328,3cyclictest41-21ksoftirqd/300:06:353
22536993327,4cyclictest41-21ksoftirqd/322:37:343
22536993327,4cyclictest41-21ksoftirqd/321:04:183
22534993328,3cyclictest25-21ksoftirqd/122:59:081
22534993328,3cyclictest25-21ksoftirqd/122:59:081
22534993328,3cyclictest25-21ksoftirqd/122:08:271
22534993328,3cyclictest25-21ksoftirqd/122:01:401
22534993327,4cyclictest25-21ksoftirqd/123:19:001
2253399335,5cyclictest0-21swapper/021:25:220
22536993227,3cyclictest41-21ksoftirqd/323:15:413
22536993227,3cyclictest41-21ksoftirqd/323:10:013
22536993226,4cyclictest41-21ksoftirqd/323:21:503
22536993226,4cyclictest41-21ksoftirqd/321:11:123
22536993226,4cyclictest41-21ksoftirqd/319:17:433
22536993226,3cyclictest41-21ksoftirqd/320:20:013
22536993221,9cyclictest41-21ksoftirqd/322:44:463
22534993227,3cyclictest25-21ksoftirqd/123:35:071
22534993227,3cyclictest25-21ksoftirqd/122:37:131
22534993227,3cyclictest25-21ksoftirqd/122:23:431
22534993227,3cyclictest25-21ksoftirqd/122:23:431
22534993227,3cyclictest25-21ksoftirqd/119:49:431
22534993227,3cyclictest25-21ksoftirqd/100:32:321
22534993226,4cyclictest25-21ksoftirqd/123:56:591
22534993226,4cyclictest25-21ksoftirqd/123:56:581
22534993226,4cyclictest25-21ksoftirqd/123:12:301
22534993226,4cyclictest25-21ksoftirqd/122:34:511
22534993226,4cyclictest25-21ksoftirqd/121:32:571
22534993226,4cyclictest25-21ksoftirqd/121:25:351
22534993225,4cyclictest25-21ksoftirqd/120:24:051
22533993226,4cyclictest9-21ksoftirqd/000:36:540
22536993125,4cyclictest41-21ksoftirqd/321:26:133
22536993125,4cyclictest41-21ksoftirqd/320:20:023
22534993126,3cyclictest25-21ksoftirqd/123:50:361
22534993126,3cyclictest25-21ksoftirqd/121:12:091
22534993126,3cyclictest25-21ksoftirqd/120:33:071
22533993125,4cyclictest9-21ksoftirqd/021:55:580
22533993125,3cyclictest9-21ksoftirqd/019:28:590
22536993026,3cyclictest41-21ksoftirqd/320:38:223
22536993024,4cyclictest41-21ksoftirqd/323:11:083
22534993026,2cyclictest5249-21kworker/1:023:30:261
22534993025,3cyclictest25-21ksoftirqd/121:35:461
22534993025,3cyclictest25-21ksoftirqd/120:55:121
22534993025,3cyclictest25-21ksoftirqd/120:42:571
22534993025,3cyclictest25-21ksoftirqd/119:44:201
22534993025,3cyclictest25-21ksoftirqd/100:16:001
22534993024,4cyclictest25-21ksoftirqd/123:22:041
22533993025,3cyclictest9-21ksoftirqd/022:19:460
22533993024,4cyclictest9-21ksoftirqd/022:45:170
22534992924,3cyclictest25-21ksoftirqd/121:24:361
22534992924,3cyclictest25-21ksoftirqd/119:24:041
22534992923,4cyclictest25-21ksoftirqd/100:12:111
22533992923,4cyclictest9-21ksoftirqd/022:32:560
2253399290,17cyclictest0-21swapper/020:15:120
139291280,0ptp4l401ktimersoftd/322:55:283
139291280,0ptp4l401ktimersoftd/322:55:283
22534992722,3cyclictest25-21ksoftirqd/121:48:271
22534992318,3cyclictest25-21ksoftirqd/122:29:081
2253399231,7cyclictest6807-21apt-get22:00:110
22534991914,3cyclictest25-21ksoftirqd/120:52:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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