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2025-12-26 - 22:39
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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 rackdslot2.osadl.org (updated Fri Dec 26, 2025 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303142207174,22sleep30-21swapper/307:08:003
302502207174,22sleep10-21swapper/107:07:091
303502206171,23sleep20-21swapper/207:08:272
301872203170,22sleep00-21swapper/007:06:200
569721450,7sleep33077099cyclictest08:30:233
3076799771,26cyclictest15112-21basename07:45:000
3076799670,24cyclictest14818-21cut11:05:160
3076799661,23cyclictest18992-21cat10:05:260
3076799660,23cyclictest20042-21sed12:25:010
3076799660,23cyclictest16603-21processes07:45:220
3076799650,23cyclictest655-21latency_hist07:15:000
3076799650,22cyclictest27666-21idleruntime10:25:170
3076799641,24cyclictest7295-21awk08:35:180
3076799640,22cyclictest13078-21switchtime11:00:260
3076799640,21cyclictest6770-21latency_hist10:50:010
3076799630,24cyclictest23437-21irqrtprio12:30:190
3076799620,23cyclictest18733-21dpkg11:15:000
3076799610,24cyclictest413-21awk11:40:310
3076799610,24cyclictest21831-21fschecks_count11:20:160
3076799610,24cyclictest21831-21fschecks_count11:20:160
3076799610,24cyclictest1850-21cat07:15:230
3076799600,23cyclictest5271-21irqstats08:30:180
3076799600,22cyclictest9126-21irqrtprio12:00:180
3076799594,22cyclictest9300-21cpuspeed_turbos08:40:160
3076799590,23cyclictest7864-21cat10:50:200
3076799586,21cyclictest13983-21grep08:50:140
3076799581,23cyclictest26619-21perl11:30:150
271662580,7sleep03076799cyclictest12:40:000
3076799571,22cyclictest19834-21latency_hist07:55:000
3076799570,23cyclictest30335-21cat11:35:280
3076799570,23cyclictest22403-21cat10:15:150
3076799570,18cyclictest16651-21ps12:15:230
205112570,2sleep00-21swapper/011:15:280
66872560,4sleep09-21ksoftirqd/007:25:210
3076799562,24cyclictest24393-21irqrtprio09:10:170
3076799561,25cyclictest1952-21ps09:30:230
3076799561,23cyclictest19018-21sed09:00:140
3076799560,24cyclictest15407-21sed10:00:150
3076799550,25cyclictest27120-21cat08:10:000
3076799550,23cyclictest12824-21cat12:10:010
3076799550,23cyclictest12824-21cat12:10:000
3076799541,24cyclictest28098-21irqrtprio08:10:180
3076799541,20cyclictest3775-21ps09:35:190
3076799540,24cyclictest4226-21sed11:50:220
3076799540,24cyclictest2494-21mailstats11:45:230
3076799540,23cyclictest32394-21grep08:20:170
3076799540,23cyclictest32394-21grep08:20:170
139291540,1ptp4l401ktimersoftd/309:37:593
3076799530,32cyclictest12368-21cut08:45:170
3076799530,25cyclictest15368-21date12:15:010
3076799530,24cyclictest21676-21timerwakeupswit07:55:270
3076799530,23cyclictest7988-21latency_hist12:00:000
3076799530,22cyclictest30964-21ls09:25:140
3076799511,24cyclictest9468-21cstates10:55:130
3076799511,23cyclictest10567-21df_abs09:50:140
3076799510,24cyclictest29574-21cat10:30:010
3076799510,21cyclictest32590-21hddtemp_smartct10:35:170
3076799510,21cyclictest32590-21hddtemp_smartct10:35:170
3076799510,19cyclictest22259-21ps09:05:240
139291510,0ptp4l401ktimersoftd/309:10:133
30768995043,4cyclictest19824-21cron07:55:001
3076799501,19cyclictest10960-21iostat07:35:200
3076799500,23cyclictest12986-21df_abs09:55:150
127542480,2sleep10-21swapper/109:55:141
3076799471,20cyclictest0-21swapper/008:25:240
3076799440,23cyclictest24008-21cat11:25:150
139291440,1ptp4l401ktimersoftd/310:50:573
30768994337,3cyclictest25-21ksoftirqd/107:30:001
30768994312,4cyclictest25-21ksoftirqd/111:35:001
30769994230,10cyclictest33-21ksoftirqd/211:35:262
30768994237,3cyclictest25-21ksoftirqd/109:45:001
30768994230,9cyclictest25-21ksoftirqd/107:15:281
139291420,0ptp4l401ktimersoftd/311:34:573
139291420,0ptp4l401ktimersoftd/311:24:303
139291420,0ptp4l401ktimersoftd/311:24:293
139291420,0ptp4l401ktimersoftd/307:50:163
30770994137,2cyclictest6609-21cron10:50:003
30769994129,11cyclictest33-21ksoftirqd/207:15:012
3076899417,4cyclictest25-21ksoftirqd/110:10:001
30768994136,3cyclictest25-21ksoftirqd/109:55:001
30768994135,3cyclictest25-21ksoftirqd/110:30:001
30768994135,3cyclictest25-21ksoftirqd/109:30:001
139291410,0ptp4l401ktimersoftd/310:15:203
139291410,0ptp4l401ktimersoftd/307:36:493
30770994034,4cyclictest41-21ksoftirqd/310:09:283
30770994033,4cyclictest41-21ksoftirqd/309:56:003
30770994033,4cyclictest41-21ksoftirqd/308:50:003
3076899409,8cyclictest25-21ksoftirqd/107:40:241
30768994034,3cyclictest25-21ksoftirqd/111:55:001
30768994034,3cyclictest25-21ksoftirqd/108:15:001
30768994034,3cyclictest25-21ksoftirqd/108:00:011
139291400,0ptp4l401ktimersoftd/311:00:013
41298390,1rtkit-daemon0-21swapper/207:56:352
30769993933,4cyclictest33-21ksoftirqd/209:55:392
30769993932,4cyclictest33-21ksoftirqd/207:32:332
30768993932,3cyclictest25-21ksoftirqd/107:25:001
30770993832,4cyclictest41-21ksoftirqd/312:25:593
30770993831,4cyclictest41-21ksoftirqd/311:13:053
30769993833,3cyclictest33-21ksoftirqd/211:45:002
30769993833,3cyclictest33-21ksoftirqd/211:20:002
30769993832,4cyclictest33-21ksoftirqd/211:52:452
30768993834,2cyclictest25-21ksoftirqd/109:20:011
30768993834,2cyclictest25-21ksoftirqd/109:00:001
30768993833,3cyclictest25-21ksoftirqd/112:39:591
30768993833,3cyclictest25-21ksoftirqd/111:10:111
30768993833,3cyclictest25-21ksoftirqd/111:00:011
30768993833,3cyclictest25-21ksoftirqd/110:20:231
30768993833,2cyclictest25-21ksoftirqd/109:10:011
30768993833,2cyclictest25-21ksoftirqd/107:40:001
30768993832,3cyclictest25-21ksoftirqd/110:00:141
30768993832,3cyclictest25-21ksoftirqd/108:55:001
30768993832,3cyclictest25-21ksoftirqd/108:40:001
30768993831,3cyclictest25-21ksoftirqd/108:05:141
139291380,1ptp4l401ktimersoftd/308:55:123
30770993731,4cyclictest41-21ksoftirqd/309:46:493
30770993730,4cyclictest41-21ksoftirqd/310:02:143
30769993733,3cyclictest33-21ksoftirqd/212:00:002
30769993731,4cyclictest33-21ksoftirqd/209:38:422
30769993730,4cyclictest33-21ksoftirqd/212:12:582
30768993732,3cyclictest25-21ksoftirqd/112:25:011
30768993732,3cyclictest25-21ksoftirqd/110:50:191
30768993731,3cyclictest25-21ksoftirqd/111:25:191
30768993731,3cyclictest25-21ksoftirqd/109:20:171
30767993715,19cyclictest29550-21/usr/sbin/munin08:15:300
30770993631,3cyclictest41-21ksoftirqd/311:50:533
30770993631,3cyclictest41-21ksoftirqd/309:22:473
30770993630,4cyclictest41-21ksoftirqd/312:12:023
30770993630,4cyclictest41-21ksoftirqd/310:13:253
30770993630,4cyclictest41-21ksoftirqd/308:28:393
30770993630,3cyclictest41-21ksoftirqd/309:25:523
30769993632,2cyclictest33-21ksoftirqd/208:20:002
30769993630,4cyclictest33-21ksoftirqd/212:29:102
30769993630,4cyclictest33-21ksoftirqd/212:24:542
30769993630,4cyclictest33-21ksoftirqd/209:54:262
30769993630,4cyclictest33-21ksoftirqd/209:44:112
30769993630,4cyclictest33-21ksoftirqd/207:53:192
30769993630,4cyclictest33-21ksoftirqd/207:38:592
30769993629,4cyclictest33-21ksoftirqd/211:30:232
30769993629,4cyclictest33-21ksoftirqd/208:05:112
30769993628,6cyclictest33-21ksoftirqd/212:05:182
30769993628,6cyclictest33-21ksoftirqd/212:05:182
3076899365,3cyclictest25-21ksoftirqd/111:40:161
30768993632,3cyclictest25-21ksoftirqd/108:50:001
30768993632,2cyclictest25-21ksoftirqd/112:05:181
30768993632,2cyclictest25-21ksoftirqd/112:05:181
30768993631,3cyclictest25-21ksoftirqd/112:30:201
30768993631,3cyclictest25-21ksoftirqd/112:25:151
30768993631,3cyclictest25-21ksoftirqd/112:00:001
30768993631,3cyclictest25-21ksoftirqd/111:00:281
30768993631,3cyclictest25-21ksoftirqd/110:48:211
30768993631,3cyclictest25-21ksoftirqd/108:45:001
30768993631,3cyclictest25-21ksoftirqd/108:20:151
30768993631,3cyclictest25-21ksoftirqd/108:20:151
30768993631,3cyclictest25-21ksoftirqd/107:35:011
30768993631,3cyclictest25-21ksoftirqd/107:15:001
30768993630,3cyclictest25-21ksoftirqd/109:30:151
30768993630,3cyclictest25-21ksoftirqd/108:20:001
30768993629,4cyclictest25-21ksoftirqd/112:13:211
3076899362,4cyclictest25-21ksoftirqd/108:00:221
3076799361,20cyclictest0-21swapper/009:20:170
3076799360,21cyclictest21285-21ls10:10:260
41298350,2rtkit-daemon0-21swapper/210:20:162
30770993530,3cyclictest41-21ksoftirqd/311:48:533
30770993530,3cyclictest41-21ksoftirqd/308:44:283
30770993530,3cyclictest41-21ksoftirqd/308:00:553
30770993530,3cyclictest41-21ksoftirqd/307:55:303
30770993529,4cyclictest41-21ksoftirqd/311:26:183
30770993529,4cyclictest41-21ksoftirqd/310:34:273
30770993529,4cyclictest41-21ksoftirqd/308:52:503
30770993529,4cyclictest41-21ksoftirqd/307:23:123
30769993530,3cyclictest33-21ksoftirqd/210:01:122
30769993530,3cyclictest33-21ksoftirqd/208:35:002
30769993529,4cyclictest33-21ksoftirqd/211:02:222
30769993529,4cyclictest33-21ksoftirqd/210:54:512
30769993529,4cyclictest33-21ksoftirqd/210:06:222
30768993531,3cyclictest25-21ksoftirqd/112:20:001
30768993531,2cyclictest25-21ksoftirqd/111:25:001
30768993531,2cyclictest25-21ksoftirqd/111:24:591
30768993530,3cyclictest25-21ksoftirqd/111:35:141
30768993530,2cyclictest25-21ksoftirqd/109:45:131
30768993525,9cyclictest25-21ksoftirqd/110:10:141
30770993429,3cyclictest41-21ksoftirqd/312:20:133
30770993429,3cyclictest41-21ksoftirqd/310:20:593
30770993428,4cyclictest41-21ksoftirqd/311:55:383
30770993428,4cyclictest41-21ksoftirqd/311:18:313
30770993428,4cyclictest41-21ksoftirqd/309:17:493
30770993428,4cyclictest41-21ksoftirqd/308:24:543
30770993428,4cyclictest41-21ksoftirqd/308:24:533
30769993429,3cyclictest33-21ksoftirqd/210:46:092
30769993428,4cyclictest33-21ksoftirqd/211:14:502
30769993428,4cyclictest33-21ksoftirqd/210:43:452
30769993428,4cyclictest33-21ksoftirqd/208:29:062
30769993428,4cyclictest33-21ksoftirqd/208:15:002
30769993428,4cyclictest33-21ksoftirqd/207:27:122
30769993426,5cyclictest33-21ksoftirqd/208:44:582
30768993430,2cyclictest25-21ksoftirqd/109:00:161
30768993429,3cyclictest25-21ksoftirqd/112:00:141
30768993429,3cyclictest25-21ksoftirqd/111:45:161
30768993429,3cyclictest25-21ksoftirqd/109:35:191
30768993429,2cyclictest25-21ksoftirqd/109:15:011
30768993428,3cyclictest25-21ksoftirqd/111:15:271
30768993428,3cyclictest25-21ksoftirqd/110:40:141
30768993428,3cyclictest25-21ksoftirqd/108:35:001
30768993428,3cyclictest25-21ksoftirqd/107:45:131
30768993424,3cyclictest25-21ksoftirqd/110:30:261
30767993428,4cyclictest9-21ksoftirqd/007:20:360
3076799341,21cyclictest0-21swapper/009:40:160
3076799340,18cyclictest0-21swapper/012:25:170
30770993327,4cyclictest41-21ksoftirqd/312:16:493
30770993327,4cyclictest41-21ksoftirqd/309:50:103
30770993327,3cyclictest41-21ksoftirqd/310:40:013
30769993329,3cyclictest33-21ksoftirqd/207:47:182
30769993328,3cyclictest33-21ksoftirqd/209:35:002
30769993328,3cyclictest33-21ksoftirqd/209:20:082
30769993328,3cyclictest33-21ksoftirqd/209:07:342
30769993328,3cyclictest33-21ksoftirqd/208:36:082
30769993328,3cyclictest33-21ksoftirqd/208:02:002
30769993327,4cyclictest33-21ksoftirqd/209:29:162
30769993322,8cyclictest33-21ksoftirqd/212:30:252
3076899337,2cyclictest25-21ksoftirqd/110:15:151
3076899336,2cyclictest25-21ksoftirqd/110:35:211
3076899336,2cyclictest25-21ksoftirqd/110:35:211
30767993312,18cyclictest23242-21sed08:00:190
30767993312,18cyclictest16251-21/usr/sbin/munin08:55:150
30767993310,20cyclictest25707-21awk10:20:240
30770993228,3cyclictest41-21ksoftirqd/307:16:503
30770993227,3cyclictest41-21ksoftirqd/311:40:143
30770993227,3cyclictest41-21ksoftirqd/307:28:583
30770993227,3cyclictest41-21ksoftirqd/307:14:013
30770993226,4cyclictest41-21ksoftirqd/308:36:223
30769993226,4cyclictest33-21ksoftirqd/210:56:442
30769993226,4cyclictest33-21ksoftirqd/210:33:342
30769993226,4cyclictest33-21ksoftirqd/210:19:342
30769993226,3cyclictest33-21ksoftirqd/208:59:202
30768993228,3cyclictest25-21ksoftirqd/111:05:151
30767993227,3cyclictest9-21ksoftirqd/009:17:500
30770993126,3cyclictest41-21ksoftirqd/310:37:443
30770993126,3cyclictest41-21ksoftirqd/310:27:213
30770993126,3cyclictest41-21ksoftirqd/309:02:323
30770993126,3cyclictest41-21ksoftirqd/307:41:223
30770993125,4cyclictest41-21ksoftirqd/312:31:013
30770993125,3cyclictest41-21ksoftirqd/309:05:463
30770993125,3cyclictest41-21ksoftirqd/307:48:323
30769993126,3cyclictest33-21ksoftirqd/211:09:012
30769993125,3cyclictest33-21ksoftirqd/209:02:322
30769993124,4cyclictest33-21ksoftirqd/208:51:122
30769993124,4cyclictest33-21ksoftirqd/207:41:002
30769993119,10cyclictest33-21ksoftirqd/210:25:142
30768993126,2cyclictest25-21ksoftirqd/108:25:151
3076799312,23cyclictest7947-21apt-get07:30:100
139291310,0ptp4l401ktimersoftd/312:36:203
139291310,0ptp4l401ktimersoftd/310:42:383
3077099309,19cyclictest0-21swapper/308:17:453
30770993025,3cyclictest41-21ksoftirqd/312:06:193
30770993025,3cyclictest41-21ksoftirqd/312:06:193
30770993025,3cyclictest41-21ksoftirqd/311:01:393
30770993024,4cyclictest41-21ksoftirqd/309:34:503
30769993025,3cyclictest33-21ksoftirqd/208:49:372
30769993025,3cyclictest33-21ksoftirqd/207:20:182
30769993025,3cyclictest33-21ksoftirqd/207:17:512
30769993024,4cyclictest33-21ksoftirqd/209:45:482
30769993024,3cyclictest33-21ksoftirqd/211:20:072
30769993024,3cyclictest33-21ksoftirqd/211:20:072
30769993019,9cyclictest33-21ksoftirqd/211:25:252
30767993024,4cyclictest9-21ksoftirqd/009:45:340
139291300,0ptp4l401ktimersoftd/312:00:213
139291300,0ptp4l401ktimersoftd/308:11:213
30770992923,4cyclictest41-21ksoftirqd/309:43:443
30769992924,3cyclictest33-21ksoftirqd/210:10:302
30769992923,3cyclictest33-21ksoftirqd/212:20:012
30769992923,3cyclictest33-21ksoftirqd/212:00:172
30769992923,3cyclictest33-21ksoftirqd/210:39:382
30769992923,3cyclictest33-21ksoftirqd/210:39:382
30770992823,3cyclictest41-21ksoftirqd/311:05:033
30769992823,3cyclictest33-21ksoftirqd/212:36:232
30769992823,3cyclictest33-21ksoftirqd/211:47:472
30769992723,2cyclictest33-21ksoftirqd/209:10:222
30769992722,3cyclictest33-21ksoftirqd/209:17:162
3076799270,24cyclictest2779-21/usr/sbin/munin10:40:190
30770992519,3cyclictest41-21ksoftirqd/308:05:273
30769992520,3cyclictest33-21ksoftirqd/208:20:362
30769992520,3cyclictest33-21ksoftirqd/208:20:362
30770992419,3cyclictest41-21ksoftirqd/307:34:413
139291240,0ptp4l401ktimersoftd/311:35:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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