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2025-07-01 - 09:51
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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 Mon Jun 30, 2025 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
184552620,3sleep018459-21timerandwakeup07:25:270
2847191610,3ptp4l0-21swapper/308:05:253
2847191600,3ptp4l0-21swapper/008:40:210
10004996029,3cyclictest33-21ksoftirqd/207:40:002
285882590,4sleep20-21swapper/207:50:172
2847191590,4ptp4l0-21swapper/307:27:373
2847191590,17ptp4l0-21swapper/107:41:411
2847191580,4ptp4l0-21swapper/011:35:240
2847191580,4ptp4l0-21swapper/011:35:240
2847191580,3ptp4l0-21swapper/211:20:222
2847191580,3ptp4l0-21swapper/209:35:022
2847191570,3ptp4l19960-21ls09:50:011
2847191570,3ptp4l0-21swapper/011:25:220
2847191560,4ptp4l0-21swapper/109:59:271
2847191560,4ptp4l0-21swapper/108:50:171
2847191560,3ptp4l0-21swapper/311:45:173
10004995625,5cyclictest33-21ksoftirqd/211:46:112
2847191550,3ptp4l0-21swapper/007:32:350
177172550,4sleep20-21swapper/208:35:192
10004995530,7cyclictest33-21ksoftirqd/207:15:232
10004995524,5cyclictest33-21ksoftirqd/207:55:272
10004995518,7cyclictest33-21ksoftirqd/209:20:302
2847191540,5ptp4l0-21swapper/012:15:200
2847191540,5ptp4l0-21swapper/007:09:550
2847191540,4ptp4l0-21swapper/212:25:582
2847191540,4ptp4l0-21swapper/211:01:582
2847191540,4ptp4l0-21swapper/111:35:291
2847191540,4ptp4l0-21swapper/111:35:291
2847191540,4ptp4l0-21swapper/010:39:140
2847191540,3ptp4l0-21swapper/107:35:121
2847191540,3ptp4l0-21swapper/010:18:390
10004995425,4cyclictest33-21ksoftirqd/211:12:022
10004995425,4cyclictest33-21ksoftirqd/210:24:332
10004995424,4cyclictest33-21ksoftirqd/210:55:242
1000399541,51cyclictest0-21swapper/109:34:401
2847191530,4ptp4l0-21swapper/211:56:002
2847191530,4ptp4l0-21swapper/210:18:462
2847191530,4ptp4l0-21swapper/007:48:590
2847191530,3ptp4l0-21swapper/008:48:090
2847191530,11ptp4l0-21swapper/310:59:373
196842530,5sleep30-21swapper/312:05:333
10004995325,4cyclictest33-21ksoftirqd/211:41:472
10004995324,5cyclictest33-21ksoftirqd/210:00:392
2847191520,4ptp4l0-21swapper/310:14:363
2847191520,4ptp4l0-21swapper/308:22:213
2847191520,4ptp4l0-21swapper/212:38:372
2847191520,4ptp4l0-21swapper/212:38:372
2847191520,4ptp4l0-21swapper/211:06:342
2847191520,4ptp4l0-21swapper/210:06:212
2847191520,4ptp4l0-21swapper/209:55:162
2847191520,4ptp4l0-21swapper/209:43:092
2847191520,4ptp4l0-21swapper/208:59:152
2847191520,4ptp4l0-21swapper/208:59:152
2847191520,4ptp4l0-21swapper/208:29:332
2847191520,4ptp4l0-21swapper/208:14:332
2847191520,4ptp4l0-21swapper/207:26:222
2847191520,4ptp4l0-21swapper/107:54:571
2847191520,4ptp4l0-21swapper/008:56:390
2847191520,4ptp4l0-21swapper/008:56:390
10004995227,3cyclictest33-21ksoftirqd/212:20:342
10004995221,6cyclictest33-21ksoftirqd/212:15:182
2847191510,9ptp4l0-21swapper/007:58:500
2847191510,4ptp4l0-21swapper/310:26:233
2847191510,4ptp4l0-21swapper/210:31:032
2847191510,4ptp4l0-21swapper/208:30:082
2847191510,4ptp4l0-21swapper/208:30:082
2847191510,4ptp4l0-21swapper/009:53:210
2847191510,14ptp4l0-21swapper/111:47:451
10004995124,3cyclictest33-21ksoftirqd/212:02:142
10004995123,5cyclictest33-21ksoftirqd/210:48:422
10004995123,4cyclictest33-21ksoftirqd/211:30:202
10004995121,3cyclictest33-21ksoftirqd/208:50:002
2847191500,4ptp4l0-21swapper/210:51:242
2847191500,4ptp4l0-21swapper/207:43:212
2847191500,4ptp4l0-21swapper/108:39:341
2847191500,4ptp4l0-21swapper/011:12:260
2847191500,4ptp4l0-21swapper/010:45:440
2847191500,4ptp4l0-21swapper/009:36:520
2847191500,3ptp4l0-21swapper/309:50:463
2847191500,3ptp4l0-21swapper/009:01:370
2847191500,15ptp4l25-21ksoftirqd/109:23:141
10004995020,3cyclictest33-21ksoftirqd/207:31:442
10004995019,4cyclictest33-21ksoftirqd/208:10:002
10004995015,8cyclictest33-21ksoftirqd/210:12:272
2849491490,1getstats21502-1kworker/2:2H09:30:052
2847191490,4ptp4l0-21swapper/311:02:113
2847191490,4ptp4l0-21swapper/307:06:173
2847191490,4ptp4l0-21swapper/207:49:432
2847191490,4ptp4l0-21swapper/111:14:571
2847191490,3ptp4l0-21swapper/109:39:461
10004994924,6cyclictest33-21ksoftirqd/207:24:592
10004994918,5cyclictest33-21ksoftirqd/212:10:272
2847191480,4ptp4l0-21swapper/308:35:233
2847191480,3ptp4l0-21swapper/107:31:381
2847191480,12ptp4l0-21swapper/208:00:062
1000499488,2cyclictest33-21ksoftirqd/208:20:282
10004994823,7cyclictest33-21ksoftirqd/209:29:592
10004994816,6cyclictest33-21ksoftirqd/209:05:172
10004994816,5cyclictest33-21ksoftirqd/211:50:322
2847191470,6ptp4l0-21swapper/107:10:001
2847191470,4ptp4l0-21swapper/109:19:301
2847191470,4ptp4l0-21swapper/011:52:360
2847191470,3ptp4l0-21swapper/312:24:293
2847191470,3ptp4l0-21swapper/310:03:363
2847191470,11ptp4l0-21swapper/208:50:262
1000499472,8cyclictest33-21ksoftirqd/208:43:052
1000499472,6cyclictest0-21swapper/209:50:172
10004994723,6cyclictest33-21ksoftirqd/210:43:432
10004994721,6cyclictest33-21ksoftirqd/211:18:362
10004994719,9cyclictest33-21ksoftirqd/208:17:132
2847191460,4ptp4l0-21swapper/112:35:381
2847191460,4ptp4l0-21swapper/112:35:381
2847191460,11ptp4l0-21swapper/308:52:463
2847191460,10ptp4l0-21swapper/209:47:062
2847191460,10ptp4l0-21swapper/011:41:290
10004994619,5cyclictest33-21ksoftirqd/210:35:182
10004994617,3cyclictest33-21ksoftirqd/207:12:062
10004994616,4cyclictest33-21ksoftirqd/211:25:272
2847191450,7ptp4l241ktimersoftd/111:09:541
2847191450,5ptp4l30800-21users09:00:321
2847191450,4ptp4l0-21swapper/207:05:402
2847191450,4ptp4l0-21swapper/110:08:311
2847191450,3ptp4l0-21swapper/309:24:123
2847191450,2ptp4l0-21swapper/308:10:173
2847191450,10ptp4l0-21swapper/209:13:222
2847191450,10ptp4l0-21swapper/008:10:280
10004994512,3cyclictest33-21ksoftirqd/212:30:272
2847191440,4ptp4l0-21swapper/111:34:421
1000499443,3cyclictest121rcu_preempt09:01:592
2847191430,8ptp4l23382-21timerandwakeup08:45:283
2847191430,5ptp4l26521-21apt-get08:55:191
2847191430,5ptp4l26521-21apt-get08:55:181
2847191430,5ptp4l0-21swapper/212:05:192
2847191430,4ptp4l31718-21apt-get10:15:161
2847191430,4ptp4l24211-21apt-get08:50:170
2847191430,4ptp4l15567-21apt-get10:50:160
2847191430,4ptp4l13548-21apt-get11:55:140
2847191430,4ptp4l0-21swapper/108:40:411
2847191430,3ptp4l25-21ksoftirqd/112:05:211
2847191430,10ptp4l0-21swapper/308:15:273
10004994312,6cyclictest33-21ksoftirqd/211:39:152
10004994312,6cyclictest33-21ksoftirqd/211:39:152
2847191420,5ptp4l0-21swapper/010:00:180
2847191420,5ptp4l0-21swapper/008:05:180
2847191420,4ptp4l20200-21apt-get11:00:141
2847191420,4ptp4l1735-21apt-get11:30:140
2847191420,4ptp4l15525-21irqstats07:20:180
2847191420,4ptp4l11780-21ntp_states09:30:300
2847191420,4ptp4l11716-21users07:10:280
2847191420,4ptp4l0-21swapper/109:26:421
2847191420,4ptp4l0-21swapper/107:25:061
2847191420,4ptp4l0-21swapper/009:29:590
2847191420,4ptp4l0-21swapper/009:20:010
2847191420,3ptp4l30900-21apt-get07:55:171
2847191420,3ptp4l29542-21ls07:50:240
2847191420,3ptp4l14962-21apt-get08:30:130
2847191420,3ptp4l14962-21apt-get08:30:130
2847191420,3ptp4l10035-21apt-get07:10:123
1000499420,6cyclictest33-21ksoftirqd/210:29:252
2847191410,8ptp4l0-21swapper/110:49:191
2847191410,8ptp4l0-21swapper/009:55:060
2847191410,6ptp4l0-21swapper/307:46:083
2847191410,5ptp4l0-21swapper/309:00:243
2847191410,5ptp4l0-21swapper/107:05:161
2847191410,5ptp4l0-21swapper/011:45:190
2847191410,5ptp4l0-21swapper/010:05:200
2847191410,4ptp4l1651-21diskstats09:10:180
2847191410,4ptp4l15105-21perl07:20:161
2847191410,4ptp4l13237-21iostat08:25:200
2847191410,4ptp4l11246-21apt-get11:50:171
2847191410,4ptp4l0-21swapper/310:43:473
2847191410,4ptp4l0-21swapper/310:30:053
2847191410,4ptp4l0-21swapper/310:24:233
2847191410,4ptp4l0-21swapper/309:58:343
2847191410,4ptp4l0-21swapper/309:35:183
2847191410,4ptp4l0-21swapper/112:15:201
2847191410,4ptp4l0-21swapper/111:20:291
2847191410,4ptp4l0-21swapper/110:50:291
2847191410,4ptp4l0-21swapper/108:08:051
2847191410,4ptp4l0-21swapper/009:45:250
2847191410,4ptp4l0-21swapper/008:04:070
2847191410,3ptp4l9-21ksoftirqd/012:05:220
2847191410,3ptp4l8619-21apt-get10:35:151
2847191410,3ptp4l8243-21hddtemp_smartct08:15:180
2847191410,3ptp4l7066-21ls08:10:291
2847191410,3ptp4l6985-21iostat11:40:201
2847191410,3ptp4l22483-21iostat08:45:191
2847191410,3ptp4l17384-21ls12:00:280
2847191410,3ptp4l17143-21ls10:50:313
2847191400,6ptp4l0-21swapper/009:15:430
2847191400,5ptp4l29629-21grep10:10:180
2847191400,5ptp4l28735-21awk12:25:273
2847191400,5ptp4l0-21swapper/310:06:033
2847191400,5ptp4l0-21swapper/308:58:073
2847191400,5ptp4l0-21swapper/308:58:063
2847191400,5ptp4l0-21swapper/110:40:211
2847191400,5ptp4l0-21swapper/007:15:180
2847191400,4ptp4l27574-21sensors_temp07:45:281
2847191400,4ptp4l18079-21df10:55:170
2847191400,4ptp4l1042-21python12:35:300
2847191400,4ptp4l1042-21python12:35:290
2847191400,4ptp4l0-21swapper/312:30:043
2847191400,4ptp4l0-21swapper/311:32:353
2847191400,4ptp4l0-21swapper/311:10:003
2847191400,4ptp4l0-21swapper/310:45:013
2847191400,4ptp4l0-21swapper/309:33:593
2847191400,4ptp4l0-21swapper/309:08:173
2847191400,4ptp4l0-21swapper/308:27:333
2847191400,4ptp4l0-21swapper/307:20:273
2847191400,4ptp4l0-21swapper/111:27:051
2847191400,4ptp4l0-21swapper/110:55:151
2847191400,4ptp4l0-21swapper/110:28:381
2847191400,4ptp4l0-21swapper/110:20:271
2847191400,4ptp4l0-21swapper/109:41:591
2847191400,4ptp4l0-21swapper/109:05:111
2847191400,4ptp4l0-21swapper/108:34:051
2847191400,4ptp4l0-21swapper/108:34:051
2847191400,4ptp4l0-21swapper/108:15:261
2847191400,4ptp4l0-21swapper/108:00:131
2847191400,4ptp4l0-21swapper/012:33:470
2847191400,4ptp4l0-21swapper/011:23:140
2847191400,4ptp4l0-21swapper/011:15:440
2847191400,4ptp4l0-21swapper/011:05:190
2847191400,4ptp4l0-21swapper/010:40:200
2847191400,4ptp4l0-21swapper/010:30:350
2847191400,4ptp4l0-21swapper/010:20:090
2847191400,4ptp4l0-21swapper/009:40:570
2847191400,4ptp4l0-21swapper/008:35:170
2847191400,3ptp4l32389-21meminfo09:05:240
2847191400,3ptp4l29844-21hddtemp_smartct10:10:191
2847191400,3ptp4l2348-21meminfo09:10:251
2847191400,3ptp4l22168-21iostat07:35:170
2847191400,3ptp4l17003-21ntp_states12:00:241
2847191400,3ptp4l15058-21ls11:55:293
2847191400,3ptp4l13516-21irqstats08:25:221
2847191400,3ptp4l0-21swapper/012:20:310
1000499404,2cyclictest33-21ksoftirqd/209:15:222
2847191390,5ptp4l0-21swapper/312:16:383
2847191390,4ptp4l0-21swapper/312:38:393
2847191390,4ptp4l0-21swapper/312:38:393
2847191390,4ptp4l0-21swapper/312:02:043
2847191390,4ptp4l0-21swapper/311:26:393
2847191390,4ptp4l0-21swapper/311:13:013
2847191390,4ptp4l0-21swapper/310:15:013
2847191390,4ptp4l0-21swapper/309:45:593
2847191390,4ptp4l0-21swapper/308:44:303
2847191390,4ptp4l0-21swapper/307:55:533
2847191390,4ptp4l0-21swapper/307:38:203
2847191390,4ptp4l0-21swapper/307:30:043
2847191390,4ptp4l0-21swapper/307:15:263
2847191390,4ptp4l0-21swapper/112:21:561
2847191390,4ptp4l0-21swapper/112:10:091
2847191390,4ptp4l0-21swapper/111:55:231
2847191390,4ptp4l0-21swapper/111:15:201
2847191390,4ptp4l0-21swapper/110:31:251
2847191390,4ptp4l0-21swapper/110:01:071
2847191390,4ptp4l0-21swapper/108:22:341
2847191390,4ptp4l0-21swapper/012:25:240
2847191390,4ptp4l0-21swapper/012:10:310
2847191390,4ptp4l0-21swapper/010:25:220
2847191390,4ptp4l0-21swapper/008:20:140
2847191390,3ptp4l28704-21ls11:15:303
2847191390,3ptp4l20773-21iostat11:00:190
2847191390,3ptp4l1894-21ls08:00:263
2847191390,3ptp4l0-21swapper/309:40:053
2847191390,3ptp4l0-21swapper/107:15:301
2847191380,4ptp4l0-21swapper/311:50:163
2847191380,4ptp4l0-21swapper/311:36:033
2847191380,4ptp4l0-21swapper/311:36:033
2847191380,4ptp4l0-21swapper/309:25:223
2847191380,4ptp4l0-21swapper/309:11:043
2847191380,4ptp4l0-21swapper/308:30:093
2847191380,4ptp4l0-21swapper/308:30:093
2847191380,4ptp4l0-21swapper/307:41:193
2847191380,4ptp4l0-21swapper/112:30:551
2847191380,4ptp4l0-21swapper/112:27:481
2847191380,4ptp4l0-21swapper/109:50:051
2847191380,4ptp4l0-21swapper/007:40:170
2847191380,3ptp4l0-21swapper/311:42:573
2847191370,3ptp4l10341-21taskset10:35:433
2847191370,3ptp4l0-21swapper/312:10:233
2847191370,3ptp4l0-21swapper/309:19:063
2847191370,3ptp4l0-21swapper/307:52:493
2847191350,4ptp4l0-21swapper/311:22:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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