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2026-08-11 - 19:23
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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 rackdslot4.osadl.org (updated Tue Aug 11, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48202234168,21sleep20-21swapper/207:06:102
48982207174,22sleep30-21swapper/307:07:113
48512204170,22sleep10-21swapper/107:06:331
48232201166,23sleep00-21swapper/007:06:120
2093621350,2sleep20-21swapper/207:40:162
209332750,2sleep10-21swapper/112:00:151
541799550,25cyclictest26040-21grep10:00:173
541799541,50cyclictest20091-21ls09:50:003
541799530,49cyclictest9873-21unixbench_multi10:30:273
134991520,3getstats13350irq/39-mmc110:20:253
541799500,24cyclictest10309-21grep09:30:133
5415994741,3cyclictest2807-21apt12:30:001
541799460,15cyclictest0-21swapper/312:20:213
5417994526,16cyclictest41-21ksoftirqd/309:40:093
541799431,24cyclictest1319-21snmpd10:17:373
5416994338,3cyclictest7581-21cron11:35:002
138491420,0ptp4l401ktimersoftd/312:12:493
138491420,0ptp4l401ktimersoftd/310:25:503
138491420,0ptp4l401ktimersoftd/308:25:303
138491420,0ptp4l401ktimersoftd/307:52:373
5416994134,4cyclictest22602-21cron08:50:012
541599412,36cyclictest22604-21cron08:50:001
138491410,0ptp4l401ktimersoftd/307:32:323
138491410,0ptp4l401ktimersoftd/307:15:503
5414994032,5cyclictest9-21ksoftirqd/010:10:000
134991400,2getstats0-21swapper/310:05:263
541799380,35cyclictest30210-21cron12:20:003
5416993832,4cyclictest33-21ksoftirqd/209:13:472
541799370,24cyclictest21487-21expr08:45:193
5415993732,3cyclictest22483-21cron07:45:011
5415993730,4cyclictest25-21ksoftirqd/111:45:001
50798370,7rtkit-daemon0-21swapper/111:52:301
5417993629,4cyclictest41-21ksoftirqd/310:38:583
5417993614,19cyclictest32767-21/usr/sbin/munin08:05:183
5417993613,20cyclictest2775-21date11:25:013
5416993632,2cyclictest418-21in:imuxsock08:02:102
5416993631,3cyclictest33-21ksoftirqd/210:00:002
5416993630,4cyclictest33-21ksoftirqd/210:39:052
5416993630,4cyclictest33-21ksoftirqd/210:33:182
5415993631,3cyclictest25-21ksoftirqd/112:39:531
5415993631,3cyclictest25-21ksoftirqd/110:15:121
5415993630,4cyclictest25-21ksoftirqd/110:26:031
5415993630,4cyclictest25-21ksoftirqd/109:29:231
5414993630,4cyclictest9-21ksoftirqd/012:29:060
5414993630,4cyclictest9-21ksoftirqd/010:21:530
5414993630,4cyclictest9-21ksoftirqd/008:48:180
5417993529,4cyclictest41-21ksoftirqd/311:09:013
5417993529,4cyclictest41-21ksoftirqd/309:57:453
5417993529,4cyclictest41-21ksoftirqd/308:32:163
5417993529,4cyclictest41-21ksoftirqd/308:20:123
5417993513,18cyclictest3030-21/usr/sbin/munin12:30:253
5417993512,20cyclictest20344-21cat12:00:003
5416993530,3cyclictest33-21ksoftirqd/212:13:432
5416993529,4cyclictest33-21ksoftirqd/212:20:382
5416993529,4cyclictest33-21ksoftirqd/211:24:382
5416993529,4cyclictest33-21ksoftirqd/209:41:232
5416993529,4cyclictest33-21ksoftirqd/209:28:192
5416993529,4cyclictest33-21ksoftirqd/208:41:022
5415993529,4cyclictest25-21ksoftirqd/110:08:141
5415993529,4cyclictest25-21ksoftirqd/109:43:581
5415993529,4cyclictest25-21ksoftirqd/109:11:051
5415993529,4cyclictest25-21ksoftirqd/107:57:071
5415993529,3cyclictest25-21ksoftirqd/109:55:001
5414993531,3cyclictest9-21ksoftirqd/010:54:070
5414993530,3cyclictest9-21ksoftirqd/011:30:100
5414993529,4cyclictest9-21ksoftirqd/012:16:140
5414993529,4cyclictest9-21ksoftirqd/011:28:590
5414993529,4cyclictest9-21ksoftirqd/011:11:550
5414993529,4cyclictest9-21ksoftirqd/010:35:420
5414993529,4cyclictest9-21ksoftirqd/007:29:300
541499352,2cyclictest121rcu_preempt11:59:540
50798350,2rtkit-daemon0-21swapper/108:20:261
5417993428,4cyclictest41-21ksoftirqd/308:12:353
5417993427,4cyclictest41-21ksoftirqd/311:38:263
541799341,21cyclictest0-21swapper/307:10:123
5417993412,19cyclictest19955-21latency_hist07:40:013
5417993412,19cyclictest16055-21if_enp1s008:35:163
5417993412,19cyclictest10727-21df_abs11:40:143
5417993411,20cyclictest16425-21irqstats11:50:183
5417993411,20cyclictest11817-21mailstats07:20:243
5417993410,21cyclictest13882-21sed07:25:203
5416993429,3cyclictest33-21ksoftirqd/210:11:012
5416993429,3cyclictest33-21ksoftirqd/207:56:272
5416993429,3cyclictest33-21ksoftirqd/207:10:112
5416993428,4cyclictest33-21ksoftirqd/211:04:272
5416993428,4cyclictest33-21ksoftirqd/210:47:222
5416993428,4cyclictest33-21ksoftirqd/208:07:272
5416993427,4cyclictest33-21ksoftirqd/209:05:472
5415993429,3cyclictest25-21ksoftirqd/112:10:591
5415993429,3cyclictest25-21ksoftirqd/107:26:101
5415993428,4cyclictest25-21ksoftirqd/111:49:061
5415993428,4cyclictest25-21ksoftirqd/111:22:231
5415993428,4cyclictest25-21ksoftirqd/110:46:411
5415993428,4cyclictest25-21ksoftirqd/109:59:191
5415993428,4cyclictest25-21ksoftirqd/108:54:491
5415993427,5cyclictest25-21ksoftirqd/108:01:291
5415993427,4cyclictest25-21ksoftirqd/109:50:001
5414993428,4cyclictest9-21ksoftirqd/012:22:280
5414993428,4cyclictest9-21ksoftirqd/011:48:580
5414993428,4cyclictest9-21ksoftirqd/009:29:330
5414993428,4cyclictest9-21ksoftirqd/008:01:530
5414993428,4cyclictest9-21ksoftirqd/007:11:460
5417993328,3cyclictest41-21ksoftirqd/309:20:353
5417993310,20cyclictest27769-21/usr/sbin/munin09:00:243
541799330,30cyclictest15477-21cat10:45:003
5416993328,3cyclictest33-21ksoftirqd/209:00:032
5416993328,3cyclictest33-21ksoftirqd/208:37:152
5416993328,3cyclictest33-21ksoftirqd/207:25:322
5416993327,4cyclictest33-21ksoftirqd/211:43:512
5416993327,4cyclictest33-21ksoftirqd/211:16:192
5416993327,4cyclictest33-21ksoftirqd/211:10:452
5416993327,4cyclictest33-21ksoftirqd/207:49:392
5416993327,4cyclictest33-21ksoftirqd/207:24:272
5416993327,3cyclictest21056-21grep12:00:162
5415993329,2cyclictest25-21ksoftirqd/107:10:151
5415993328,3cyclictest25-21ksoftirqd/112:30:121
5415993327,4cyclictest25-21ksoftirqd/109:38:541
5415993327,4cyclictest25-21ksoftirqd/108:56:091
5415993327,4cyclictest25-21ksoftirqd/108:31:331
5415993327,4cyclictest25-21ksoftirqd/107:46:481
5415993326,5cyclictest25-21ksoftirqd/108:44:211
5414993328,3cyclictest9-21ksoftirqd/012:05:140
5414993328,3cyclictest9-21ksoftirqd/010:40:030
5414993328,3cyclictest9-21ksoftirqd/008:31:090
5414993327,4cyclictest9-21ksoftirqd/012:04:030
5414993327,4cyclictest9-21ksoftirqd/011:41:240
5414993327,4cyclictest9-21ksoftirqd/010:47:200
5414993327,4cyclictest9-21ksoftirqd/010:33:440
5414993327,4cyclictest9-21ksoftirqd/008:44:250
5414993327,4cyclictest9-21ksoftirqd/008:13:230
50798330,2rtkit-daemon0-21swapper/107:50:111
5417993227,3cyclictest41-21ksoftirqd/312:25:123
5417993226,4cyclictest41-21ksoftirqd/310:46:473
5417993226,4cyclictest41-21ksoftirqd/309:50:063
5417993226,4cyclictest41-21ksoftirqd/308:55:073
5417993226,4cyclictest41-21ksoftirqd/308:44:033
5417993211,18cyclictest20197-21/usr/sbin/munin07:40:103
5417993210,20cyclictest32661-21cat08:05:013
541799320,29cyclictest7944-21cat12:40:013
541799320,29cyclictest222951timerwakeupswit12:00:293
5416993227,3cyclictest33-21ksoftirqd/211:07:402
5416993227,3cyclictest33-21ksoftirqd/210:51:132
5416993227,3cyclictest33-21ksoftirqd/209:22:372
5416993227,3cyclictest33-21ksoftirqd/208:30:112
5416993227,3cyclictest33-21ksoftirqd/208:16:102
5416993226,4cyclictest33-21ksoftirqd/212:28:122
5416993226,4cyclictest33-21ksoftirqd/211:58:392
5416993226,4cyclictest33-21ksoftirqd/211:52:452
5416993226,4cyclictest33-21ksoftirqd/211:37:052
5416993226,4cyclictest33-21ksoftirqd/210:42:492
5416993226,4cyclictest33-21ksoftirqd/210:21:352
5416993226,4cyclictest33-21ksoftirqd/209:33:402
5416993226,4cyclictest33-21ksoftirqd/208:52:082
5415993227,3cyclictest25-21ksoftirqd/111:35:421
5415993227,3cyclictest25-21ksoftirqd/111:05:221
5415993227,3cyclictest25-21ksoftirqd/110:35:451
5415993226,4cyclictest25-21ksoftirqd/112:15:071
5415993226,4cyclictest25-21ksoftirqd/110:34:211
5415993226,4cyclictest25-21ksoftirqd/110:24:071
5415993226,4cyclictest25-21ksoftirqd/107:37:421
5415993225,5cyclictest25-21ksoftirqd/110:53:511
5415993225,5cyclictest25-21ksoftirqd/107:19:241
5414993227,3cyclictest9-21ksoftirqd/012:32:110
5414993227,3cyclictest9-21ksoftirqd/011:53:520
5414993227,3cyclictest9-21ksoftirqd/009:36:230
5414993227,3cyclictest9-21ksoftirqd/009:33:380
5414993227,3cyclictest9-21ksoftirqd/009:11:250
5414993227,3cyclictest9-21ksoftirqd/008:50:570
5414993226,4cyclictest9-21ksoftirqd/011:37:590
5414993226,4cyclictest9-21ksoftirqd/010:18:080
5414993226,4cyclictest9-21ksoftirqd/009:54:090
5414993226,4cyclictest9-21ksoftirqd/007:37:320
5414993226,3cyclictest9-21ksoftirqd/007:47:220
5417993126,3cyclictest41-21ksoftirqd/307:58:323
5417993126,3cyclictest41-21ksoftirqd/307:45:123
5417993125,4cyclictest41-21ksoftirqd/308:52:593
5417993110,18cyclictest25466-21sed12:10:013
541799310,28cyclictest3281-21df11:25:153
541799310,28cyclictest30208-21cat11:15:003
5416993126,3cyclictest33-21ksoftirqd/210:59:162
5416993126,3cyclictest33-21ksoftirqd/209:39:402
5416993125,4cyclictest33-21ksoftirqd/210:27:002
5415993126,3cyclictest25-21ksoftirqd/108:12:101
5415993125,4cyclictest25-21ksoftirqd/111:29:461
5415993125,4cyclictest25-21ksoftirqd/109:33:401
5415993125,4cyclictest25-21ksoftirqd/109:20:121
5414993126,3cyclictest9-21ksoftirqd/011:21:050
5414993126,3cyclictest9-21ksoftirqd/011:02:100
5414993126,3cyclictest9-21ksoftirqd/010:26:420
5414993126,3cyclictest9-21ksoftirqd/009:47:100
5414993126,3cyclictest9-21ksoftirqd/008:36:290
5414993126,3cyclictest9-21ksoftirqd/008:24:540
5414993126,3cyclictest9-21ksoftirqd/007:55:130
5414993126,3cyclictest9-21ksoftirqd/007:23:050
541799308,19cyclictest13398-21irqrtprio09:35:223
541799306,21cyclictest1319-21snmpd09:27:283
5417993025,3cyclictest41-21ksoftirqd/311:30:103
541799302,22cyclictest32697-21apt-get09:10:123
541799302,22cyclictest2811-21apt-get09:15:113
541799300,28cyclictest14982-21latency_hist11:50:003
5416993025,3cyclictest33-21ksoftirqd/212:05:412
5416993025,3cyclictest33-21ksoftirqd/210:18:002
5416993025,3cyclictest33-21ksoftirqd/210:09:272
5416993025,3cyclictest33-21ksoftirqd/208:26:562
5416993025,3cyclictest33-21ksoftirqd/208:20:402
5416993024,3cyclictest33-21ksoftirqd/207:30:132
5415993025,3cyclictest25-21ksoftirqd/111:35:001
5415993025,3cyclictest25-21ksoftirqd/111:19:131
5415993024,4cyclictest25-21ksoftirqd/111:59:511
5415993024,4cyclictest25-21ksoftirqd/111:10:441
5415993024,4cyclictest25-21ksoftirqd/109:06:191
5415993024,4cyclictest25-21ksoftirqd/108:38:231
5414993025,3cyclictest9-21ksoftirqd/011:19:460
5414993025,3cyclictest9-21ksoftirqd/010:59:240
5414993025,3cyclictest9-21ksoftirqd/010:00:270
5414993025,3cyclictest9-21ksoftirqd/009:06:480
5414993025,3cyclictest9-21ksoftirqd/008:55:330
5414993024,4cyclictest9-21ksoftirqd/009:23:520
5414993024,4cyclictest9-21ksoftirqd/007:18:040
541799295,21cyclictest30894-21cut11:15:163
5417992923,4cyclictest41-21ksoftirqd/310:57:233
5417992923,3cyclictest41-21ksoftirqd/308:15:163
541799291,24cyclictest30240-21apt-get09:05:113
5416992924,3cyclictest33-21ksoftirqd/209:50:262
5416992924,3cyclictest33-21ksoftirqd/207:52:302
5416992924,3cyclictest33-21ksoftirqd/207:40:002
5416992922,5cyclictest33-21ksoftirqd/212:18:452
5415992924,3cyclictest25-21ksoftirqd/112:24:171
5415992924,3cyclictest25-21ksoftirqd/112:07:591
5415992924,3cyclictest25-21ksoftirqd/110:02:591
5415992924,3cyclictest25-21ksoftirqd/109:02:081
5415992924,3cyclictest25-21ksoftirqd/108:28:511
5415992924,3cyclictest25-21ksoftirqd/108:15:451
5415992923,4cyclictest25-21ksoftirqd/110:55:411
5415992923,4cyclictest25-21ksoftirqd/107:32:331
5415992923,3cyclictest25-21ksoftirqd/109:18:161
5414992924,3cyclictest9-21ksoftirqd/007:54:060
5414992924,2cyclictest9-21ksoftirqd/012:35:590
5414992923,4cyclictest9-21ksoftirqd/010:12:060
5414992923,4cyclictest9-21ksoftirqd/008:16:400
5414992923,4cyclictest9-21ksoftirqd/007:30:180
5414992923,3cyclictest9-21ksoftirqd/009:42:050
541799286,19cyclictest23493-21fschecks_time11:00:173
541799286,19cyclictest17961-21/usr/sbin/munin10:50:183
541799281,23cyclictest31081-21df_inode10:10:153
5416992823,3cyclictest33-21ksoftirqd/209:47:532
5416992822,4cyclictest33-21ksoftirqd/211:28:312
5416992822,4cyclictest33-21ksoftirqd/210:02:332
5415992823,3cyclictest25-21ksoftirqd/110:13:431
5414992823,3cyclictest9-21ksoftirqd/011:05:010
5414992823,3cyclictest9-21ksoftirqd/009:58:040
5414992823,3cyclictest9-21ksoftirqd/009:15:200
5416992722,3cyclictest33-21ksoftirqd/212:38:162
5416992722,3cyclictest33-21ksoftirqd/212:30:422
5416992722,3cyclictest33-21ksoftirqd/211:45:352
5416992722,3cyclictest33-21ksoftirqd/207:15:382
5416992721,4cyclictest33-21ksoftirqd/208:12:332
5415992722,3cyclictest25-21ksoftirqd/110:40:431
5415992721,4cyclictest25-21ksoftirqd/111:00:061
5415992721,4cyclictest25-21ksoftirqd/107:21:101
5414992722,3cyclictest9-21ksoftirqd/009:00:010
5414992722,3cyclictest9-21ksoftirqd/008:26:520
5414992722,3cyclictest9-21ksoftirqd/008:07:330
5414992721,4cyclictest9-21ksoftirqd/007:42:540
5416992622,3cyclictest33-21ksoftirqd/209:15:402
5416992620,4cyclictest33-21ksoftirqd/208:57:142
5415992620,4cyclictest25-21ksoftirqd/108:08:031
5414992420,2cyclictest9-21ksoftirqd/012:10:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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