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2026-07-02 - 23:30
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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 rackdslot2.osadl.org (updated Thu Jul 02, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285532213180,22sleep20-21swapper/207:06:232
285312208174,22sleep00-21swapper/007:06:050
139591208175,22phc2sys0-21swapper/307:07:053
285272206173,22sleep10-21swapper/107:06:031
37222820,2sleep32913299cyclictest08:30:173
29130996619,45cyclictest0-21swapper/111:30:251
72822540,2sleep20-21swapper/207:30:192
2912999530,9cyclictest24657-21/usr/sbin/munin11:30:140
2912999520,12cyclictest12118-21irqstats09:55:200
2912999510,11cyclictest5144-21cut07:25:230
2912999490,11cyclictest14217-21timerwakeupswit08:50:260
2912999484,8cyclictest23395-21ls11:25:230
2912999480,13cyclictest15006-21apt-get08:55:120
2912999480,10cyclictest3242-21timerwakeupswit11:50:260
2913099460,44cyclictest0-21swapper/109:27:461
2912999460,9cyclictest2874-21apt-get10:45:120
2912999460,17cyclictest7527-21irqstats12:00:180
29130994415,27cyclictest0-21swapper/109:11:051
139591430,3phc2sys11765-21anacron11:00:403
29130994229,10cyclictest25-21ksoftirqd/110:38:591
139291420,0ptp4l401ktimersoftd/310:05:243
139291420,0ptp4l401ktimersoftd/308:26:093
2912999410,8cyclictest32709-21memory09:30:200
2912999410,8cyclictest32709-21memory09:30:200
139291410,0ptp4l401ktimersoftd/312:00:143
139291410,0ptp4l401ktimersoftd/307:54:393
41298400,8rtkit-daemon0-21swapper/107:55:071
29130994033,4cyclictest10956-21ls09:54:591
2912999400,14cyclictest12348-21/usr/sbin/munin11:05:150
2912999400,11cyclictest4121-21dpkg11:55:000
2912999391,7cyclictest21416-21iostat08:00:190
2912999390,8cyclictest2262-21users08:25:280
2912999390,7cyclictest5749-21hddtemp_smartct10:50:170
139291390,0ptp4l401ktimersoftd/309:19:593
29132993832,4cyclictest41-21ksoftirqd/308:00:323
29131993833,3cyclictest33-21ksoftirqd/209:40:002
2912999380,8cyclictest7111-21iostat_ios09:45:190
2912999380,8cyclictest6700-21diskstats07:30:150
2912999380,7cyclictest29546-21diskstats07:10:140
2912999380,6cyclictest26587-21meminfo08:10:180
29132993733,3cyclictest41-21ksoftirqd/307:40:003
29132993732,3cyclictest41-21ksoftirqd/311:07:223
29132993732,3cyclictest41-21ksoftirqd/309:40:113
29132993731,4cyclictest41-21ksoftirqd/311:15:093
29132993731,4cyclictest41-21ksoftirqd/308:55:283
29132993731,4cyclictest41-21ksoftirqd/308:08:263
29131993732,3cyclictest33-21ksoftirqd/209:00:012
29131993731,4cyclictest33-21ksoftirqd/208:52:472
29130993731,4cyclictest25-21ksoftirqd/112:18:331
29130993731,4cyclictest25-21ksoftirqd/111:12:421
29130993730,4cyclictest25-21ksoftirqd/109:06:091
2912999371,10cyclictest24680-21grep10:20:230
2912999370,7cyclictest24996-21users12:35:270
29132993631,3cyclictest41-21ksoftirqd/311:43:133
29132993631,3cyclictest41-21ksoftirqd/309:00:123
29132993630,4cyclictest41-21ksoftirqd/312:08:163
29132993630,4cyclictest41-21ksoftirqd/311:11:073
29132993630,4cyclictest41-21ksoftirqd/308:21:353
29132993630,4cyclictest41-21ksoftirqd/308:19:453
29132993629,4cyclictest41-21ksoftirqd/310:46:403
29131993631,3cyclictest33-21ksoftirqd/210:30:422
29131993631,3cyclictest33-21ksoftirqd/209:27:592
29131993631,3cyclictest33-21ksoftirqd/208:47:432
29131993631,3cyclictest33-21ksoftirqd/207:40:142
29131993630,4cyclictest33-21ksoftirqd/210:49:562
29130993631,3cyclictest25-21ksoftirqd/111:02:071
29130993631,3cyclictest25-21ksoftirqd/110:18:451
29130993631,3cyclictest25-21ksoftirqd/107:19:391
29130993630,4cyclictest25-21ksoftirqd/109:03:241
29130993630,4cyclictest25-21ksoftirqd/107:47:501
2913099360,4cyclictest0-21swapper/108:20:121
29129993630,4cyclictest9-21ksoftirqd/009:01:400
29129993630,4cyclictest9-21ksoftirqd/007:15:520
2912999360,7cyclictest2601-21meminfo07:20:210
2912999360,7cyclictest20680-21irqstats09:05:190
29132993530,3cyclictest41-21ksoftirqd/311:59:423
29132993530,3cyclictest41-21ksoftirqd/307:22:423
29132993529,4cyclictest41-21ksoftirqd/310:12:583
29132993529,4cyclictest41-21ksoftirqd/309:50:443
29132993529,4cyclictest41-21ksoftirqd/308:47:473
29131993530,3cyclictest33-21ksoftirqd/211:47:052
29131993529,4cyclictest33-21ksoftirqd/211:42:522
29131993529,4cyclictest33-21ksoftirqd/211:23:512
29131993529,4cyclictest33-21ksoftirqd/211:05:572
29131993529,4cyclictest33-21ksoftirqd/210:01:002
29131993529,4cyclictest33-21ksoftirqd/210:01:002
29131993529,4cyclictest33-21ksoftirqd/208:03:332
29130993530,3cyclictest25-21ksoftirqd/107:42:161
29130993529,4cyclictest25-21ksoftirqd/112:02:081
29130993529,4cyclictest25-21ksoftirqd/111:18:321
29130993529,4cyclictest25-21ksoftirqd/110:26:211
29130993529,4cyclictest25-21ksoftirqd/110:11:481
29130993529,4cyclictest25-21ksoftirqd/109:42:121
29130993529,4cyclictest25-21ksoftirqd/109:17:281
29129993530,3cyclictest9-21ksoftirqd/010:35:110
29129993530,3cyclictest9-21ksoftirqd/007:45:110
29129993529,4cyclictest9-21ksoftirqd/012:11:470
29129993529,4cyclictest9-21ksoftirqd/011:15:550
29129993528,4cyclictest9-21ksoftirqd/010:25:190
2912999351,7cyclictest11714-21iostat07:40:180
2912999350,8cyclictest23213-21memory09:10:220
139591350,2phc2sys121rcu_preempt07:20:003
41298340,1rtkit-daemon0-21swapper/107:54:331
29132993429,3cyclictest41-21ksoftirqd/309:33:283
29132993429,3cyclictest41-21ksoftirqd/309:33:283
29132993429,3cyclictest41-21ksoftirqd/308:41:593
29132993429,3cyclictest41-21ksoftirqd/307:56:193
29132993428,4cyclictest41-21ksoftirqd/312:30:473
29132993428,4cyclictest41-21ksoftirqd/312:12:213
29132993428,4cyclictest41-21ksoftirqd/311:28:123
29132993428,4cyclictest41-21ksoftirqd/311:22:273
29132993428,4cyclictest41-21ksoftirqd/308:53:153
29132993428,4cyclictest41-21ksoftirqd/307:33:043
29131993429,3cyclictest33-21ksoftirqd/212:30:082
29131993429,3cyclictest33-21ksoftirqd/212:09:492
29131993429,3cyclictest33-21ksoftirqd/209:00:152
29131993429,3cyclictest33-21ksoftirqd/207:20:112
29131993428,4cyclictest33-21ksoftirqd/212:20:592
29131993428,4cyclictest33-21ksoftirqd/212:17:462
29131993428,4cyclictest33-21ksoftirqd/210:44:472
29131993428,4cyclictest33-21ksoftirqd/210:10:012
29131993428,4cyclictest33-21ksoftirqd/208:27:552
29131993428,4cyclictest33-21ksoftirqd/208:18:522
29131993428,4cyclictest33-21ksoftirqd/207:52:462
29131993428,4cyclictest33-21ksoftirqd/207:46:082
29130993429,3cyclictest25-21ksoftirqd/112:37:351
29130993429,3cyclictest25-21ksoftirqd/110:55:121
29130993429,3cyclictest25-21ksoftirqd/110:24:551
29130993429,3cyclictest25-21ksoftirqd/109:58:031
29130993429,3cyclictest25-21ksoftirqd/108:33:201
29130993429,3cyclictest25-21ksoftirqd/107:13:491
29130993428,4cyclictest25-21ksoftirqd/112:20:501
29130993428,4cyclictest25-21ksoftirqd/111:47:361
29130993428,4cyclictest25-21ksoftirqd/111:26:021
29130993428,4cyclictest25-21ksoftirqd/108:28:031
29130993428,4cyclictest25-21ksoftirqd/107:31:091
29130993419,12cyclictest25-21ksoftirqd/112:26:581
29130993411,20cyclictest3338-21cut10:45:161
2913099340,3cyclictest121rcu_preempt11:09:561
29129993428,4cyclictest9-21ksoftirqd/010:59:290
29129993428,4cyclictest9-21ksoftirqd/010:10:120
29129993428,4cyclictest9-21ksoftirqd/009:19:250
29129993428,4cyclictest9-21ksoftirqd/007:52:190
29129993427,4cyclictest9-21ksoftirqd/010:17:000
29132993328,3cyclictest41-21ksoftirqd/311:33:313
29132993328,3cyclictest41-21ksoftirqd/310:27:313
29132993328,3cyclictest41-21ksoftirqd/309:55:303
29132993328,3cyclictest41-21ksoftirqd/307:42:403
29132993327,4cyclictest41-21ksoftirqd/311:37:443
29132993327,4cyclictest41-21ksoftirqd/310:56:513
29132993327,4cyclictest41-21ksoftirqd/309:48:313
29132993327,4cyclictest41-21ksoftirqd/309:07:553
29131993328,3cyclictest33-21ksoftirqd/212:13:332
29131993328,3cyclictest33-21ksoftirqd/209:20:072
29131993328,3cyclictest33-21ksoftirqd/208:32:462
29131993328,3cyclictest33-21ksoftirqd/207:55:342
29131993327,4cyclictest33-21ksoftirqd/211:36:302
29131993327,4cyclictest33-21ksoftirqd/209:51:512
29131993327,4cyclictest33-21ksoftirqd/209:10:162
29130993328,3cyclictest25-21ksoftirqd/111:55:371
29130993328,3cyclictest25-21ksoftirqd/111:43:461
29130993328,3cyclictest25-21ksoftirqd/108:36:361
29130993328,3cyclictest25-21ksoftirqd/107:39:591
29130993328,3cyclictest25-21ksoftirqd/107:27:511
29130993327,4cyclictest25-21ksoftirqd/109:33:501
29130993327,4cyclictest25-21ksoftirqd/109:33:501
29129993328,3cyclictest9-21ksoftirqd/008:31:220
29129993327,4cyclictest9-21ksoftirqd/008:18:270
29129993327,3cyclictest9-21ksoftirqd/011:45:000
29132993227,3cyclictest41-21ksoftirqd/312:28:363
29132993227,3cyclictest41-21ksoftirqd/312:18:343
29132993227,3cyclictest41-21ksoftirqd/309:37:213
29132993227,3cyclictest41-21ksoftirqd/308:40:003
29132993226,4cyclictest41-21ksoftirqd/311:51:273
29132993226,4cyclictest41-21ksoftirqd/310:51:463
29132993226,4cyclictest41-21ksoftirqd/310:02:313
29132993226,4cyclictest41-21ksoftirqd/310:02:313
29131993227,3cyclictest33-21ksoftirqd/210:19:592
29131993227,3cyclictest33-21ksoftirqd/207:15:392
29131993227,2cyclictest33-21ksoftirqd/212:30:002
29131993226,4cyclictest33-21ksoftirqd/211:04:162
29131993226,4cyclictest33-21ksoftirqd/210:55:342
29131993226,4cyclictest33-21ksoftirqd/210:51:092
29131993226,4cyclictest33-21ksoftirqd/210:27:222
29131993226,4cyclictest33-21ksoftirqd/210:13:392
29131993226,4cyclictest33-21ksoftirqd/209:47:142
29131993226,4cyclictest33-21ksoftirqd/209:41:402
29130993227,3cyclictest25-21ksoftirqd/107:22:511
29130993226,4cyclictest25-21ksoftirqd/110:06:511
29130993226,4cyclictest25-21ksoftirqd/109:36:031
29130993226,4cyclictest25-21ksoftirqd/108:59:311
29130993226,4cyclictest25-21ksoftirqd/108:05:591
29129993227,3cyclictest9-21ksoftirqd/008:35:130
29129993226,4cyclictest9-21ksoftirqd/011:01:340
29129993226,4cyclictest9-21ksoftirqd/010:42:440
29129993226,4cyclictest9-21ksoftirqd/009:21:570
29129993226,4cyclictest9-21ksoftirqd/008:21:550
29132993126,3cyclictest41-21ksoftirqd/309:23:593
29132993125,4cyclictest41-21ksoftirqd/312:38:023
29132993125,4cyclictest41-21ksoftirqd/309:11:083
29131993126,3cyclictest33-21ksoftirqd/212:02:202
29131993125,4cyclictest33-21ksoftirqd/211:59:082
29131993125,4cyclictest33-21ksoftirqd/209:34:502
29131993125,4cyclictest33-21ksoftirqd/209:34:502
29131993125,4cyclictest33-21ksoftirqd/208:13:522
29131993124,5cyclictest33-21ksoftirqd/208:36:292
29130993126,3cyclictest25-21ksoftirqd/110:50:051
29130993126,3cyclictest25-21ksoftirqd/110:42:571
29130993126,3cyclictest25-21ksoftirqd/109:21:451
29130993125,4cyclictest25-21ksoftirqd/110:34:561
29130993124,4cyclictest25-21ksoftirqd/111:20:081
2913099311,6cyclictest0-21swapper/108:10:091
29129993125,4cyclictest9-21ksoftirqd/008:05:440
29129993125,4cyclictest9-21ksoftirqd/007:55:480
139291310,0ptp4l401ktimersoftd/310:19:293
29132993024,4cyclictest41-21ksoftirqd/309:29:193
29131993025,3cyclictest33-21ksoftirqd/211:25:452
29131993025,3cyclictest33-21ksoftirqd/209:18:302
29131993024,4cyclictest33-21ksoftirqd/211:11:352
29131993024,4cyclictest33-21ksoftirqd/209:05:112
29131993020,9cyclictest33-21ksoftirqd/208:40:182
29131993018,10cyclictest33-21ksoftirqd/207:25:162
2913099309,18cyclictest12308-21cat12:10:191
29130993025,3cyclictest25-21ksoftirqd/112:30:491
29130993024,4cyclictest25-21ksoftirqd/108:43:311
29130993024,4cyclictest25-21ksoftirqd/108:02:181
29129993025,3cyclictest9-21ksoftirqd/012:08:260
139291300,0ptp4l401ktimersoftd/311:48:333
29132992924,3cyclictest41-21ksoftirqd/312:21:133
29132992924,3cyclictest41-21ksoftirqd/310:40:123
29132992924,3cyclictest41-21ksoftirqd/307:10:383
29131992924,3cyclictest33-21ksoftirqd/212:40:002
29131992924,3cyclictest33-21ksoftirqd/208:06:302
29131992924,3cyclictest33-21ksoftirqd/207:36:032
29131992923,4cyclictest33-21ksoftirqd/210:36:082
29130992924,3cyclictest25-21ksoftirqd/111:36:101
29130992924,3cyclictest25-21ksoftirqd/110:00:031
29130992924,3cyclictest25-21ksoftirqd/110:00:031
29130992924,3cyclictest25-21ksoftirqd/108:45:581
29130992923,4cyclictest25-21ksoftirqd/111:51:171
29130992922,4cyclictest14755-21cron08:55:001
29129992924,3cyclictest9-21ksoftirqd/011:24:210
29129992924,3cyclictest9-21ksoftirqd/009:26:100
29129992924,3cyclictest9-21ksoftirqd/008:42:370
29129992923,4cyclictest9-21ksoftirqd/012:15:470
29132992823,3cyclictest41-21ksoftirqd/310:20:323
29132992823,3cyclictest41-21ksoftirqd/307:48:043
29132992822,4cyclictest41-21ksoftirqd/308:13:563
29131992823,3cyclictest33-21ksoftirqd/211:20:022
29131992823,3cyclictest33-21ksoftirqd/209:57:572
2913099287,3cyclictest29139-21latency08:15:191
29129992822,4cyclictest9-21ksoftirqd/012:34:250
29129992822,4cyclictest9-21ksoftirqd/012:27:230
139291280,0ptp4l401ktimersoftd/307:27:423
29131992723,3cyclictest33-21ksoftirqd/211:55:002
29131992721,4cyclictest33-21ksoftirqd/208:23:382
2913099276,3cyclictest9085-21cat12:05:131
29130992722,3cyclictest25-21ksoftirqd/109:48:051
29129992722,3cyclictest9-21ksoftirqd/012:22:130
29129992722,3cyclictest9-21ksoftirqd/011:10:500
29129992721,4cyclictest9-21ksoftirqd/010:02:370
29129992721,4cyclictest9-21ksoftirqd/010:02:370
2912999270,4cyclictest0-21swapper/009:54:040
29132992621,3cyclictest41-21ksoftirqd/310:39:473
29131992620,4cyclictest33-21ksoftirqd/207:10:362
29131992620,3cyclictest33-21ksoftirqd/210:21:152
2912999262,7cyclictest1652-21apt-get09:35:120
29129992621,3cyclictest9-21ksoftirqd/010:05:120
29129992620,4cyclictest9-21ksoftirqd/011:47:590
29131992520,3cyclictest33-21ksoftirqd/211:33:042
29129992520,3cyclictest9-21ksoftirqd/011:36:540
29129992419,3cyclictest9-21ksoftirqd/007:36:550
139291240,0ptp4l401ktimersoftd/310:30:273
29129992217,3cyclictest9-21ksoftirqd/010:31:090
29129992216,4cyclictest9-21ksoftirqd/008:49:110
29129992015,3cyclictest9-21ksoftirqd/009:41:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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