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2026-07-08 - 16:25
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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 rackdslot4.osadl.org (updated Wed Jul 08, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
263862205172,21sleep00-21swapper/007:05:400
265382202168,23sleep30-21swapper/307:07:403
266732200166,23sleep10-21swapper/107:09:191
265472200167,22sleep20-21swapper/207:07:472
997421520,6sleep02701999cyclictest10:55:150
997421520,6sleep02701999cyclictest10:55:150
174732700,2sleep00-21swapper/011:10:140
77942630,5sleep17797-21irqrtprio10:50:171
89922600,6sleep38993-21ls12:00:003
21702580,3sleep02175-21cpuspeed_turbos07:25:130
2702299551,51cyclictest31540-21cron10:35:013
322052500,4sleep10-21swapper/107:20:131
27020995044,3cyclictest6761-21sh07:35:001
50798460,5rtkit-daemon9472-21apache207:15:213
2672624633,7sleep30-21swapper/307:10:013
138491440,1ptp4l401ktimersoftd/310:40:323
2702299435,3cyclictest41-21ksoftirqd/310:50:273
138491430,0ptp4l401ktimersoftd/308:16:413
138491430,0ptp4l401ktimersoftd/307:40:343
138491430,0ptp4l401ktimersoftd/307:38:053
27022994136,3cyclictest41-21ksoftirqd/308:40:013
138491410,0ptp4l401ktimersoftd/311:46:453
27022993935,2cyclictest41-21ksoftirqd/311:20:003
27022993935,2cyclictest41-21ksoftirqd/309:20:003
27022993934,3cyclictest41-21ksoftirqd/309:40:013
27022993928,10cyclictest41-21ksoftirqd/308:40:213
27021993932,4cyclictest33-21ksoftirqd/207:15:002
27022993833,3cyclictest41-21ksoftirqd/309:45:013
27022993833,3cyclictest41-21ksoftirqd/307:30:003
27022993832,4cyclictest41-21ksoftirqd/310:38:013
27020993833,3cyclictest25-21ksoftirqd/109:59:591
27019993833,3cyclictest19519-21cron09:05:000
27022993732,3cyclictest41-21ksoftirqd/312:05:003
27022993732,3cyclictest41-21ksoftirqd/307:30:193
27022993731,4cyclictest41-21ksoftirqd/310:00:063
27022993731,3cyclictest41-21ksoftirqd/308:00:123
2702299371,33cyclictest21687-21cron10:15:013
27021993731,4cyclictest33-21ksoftirqd/211:04:062
27021993730,4cyclictest33-21ksoftirqd/207:25:002
27020993731,4cyclictest19521-21cron09:05:001
27022993632,3cyclictest41-21ksoftirqd/308:30:163
27022993632,2cyclictest41-21ksoftirqd/309:00:193
27022993631,3cyclictest41-21ksoftirqd/308:54:593
27022993630,4cyclictest41-21ksoftirqd/308:13:263
27022993625,9cyclictest41-21ksoftirqd/308:45:283
27021993631,3cyclictest33-21ksoftirqd/211:35:042
27021993631,3cyclictest33-21ksoftirqd/209:43:342
27021993630,4cyclictest33-21ksoftirqd/211:26:132
27021993630,4cyclictest33-21ksoftirqd/210:32:382
27021993630,4cyclictest33-21ksoftirqd/210:19:452
27021993630,4cyclictest33-21ksoftirqd/208:00:462
27021993630,4cyclictest33-21ksoftirqd/207:57:172
27021993630,4cyclictest33-21ksoftirqd/207:18:012
2702199362,2cyclictest121rcu_preempt12:07:512
27020993632,2cyclictest25-21ksoftirqd/108:50:001
27019993630,4cyclictest9-21ksoftirqd/008:55:400
27019993630,4cyclictest9-21ksoftirqd/008:09:100
27019993630,4cyclictest9-21ksoftirqd/007:48:000
27019993629,5cyclictest9-21ksoftirqd/010:36:490
27019993629,5cyclictest9-21ksoftirqd/009:57:180
27019993629,4cyclictest9-21ksoftirqd/010:45:090
27022993532,2cyclictest41-21ksoftirqd/311:25:003
27022993531,2cyclictest41-21ksoftirqd/311:00:013
27022993531,2cyclictest41-21ksoftirqd/311:00:013
27022993530,3cyclictest41-21ksoftirqd/311:40:013
27022993530,3cyclictest41-21ksoftirqd/311:35:013
27022993530,3cyclictest41-21ksoftirqd/311:00:193
27022993530,3cyclictest41-21ksoftirqd/309:57:403
27022993530,3cyclictest41-21ksoftirqd/309:30:143
27022993529,4cyclictest41-21ksoftirqd/312:23:073
27022993529,4cyclictest41-21ksoftirqd/312:09:223
27021993530,3cyclictest33-21ksoftirqd/209:14:432
27021993530,3cyclictest33-21ksoftirqd/208:59:032
27021993529,4cyclictest33-21ksoftirqd/212:28:232
27021993529,4cyclictest33-21ksoftirqd/210:25:432
27021993529,4cyclictest33-21ksoftirqd/208:38:412
27021993529,4cyclictest33-21ksoftirqd/208:15:302
27020993531,3cyclictest25-21ksoftirqd/112:24:161
27020993530,3cyclictest25-21ksoftirqd/112:29:161
27020993529,4cyclictest25-21ksoftirqd/111:56:331
27020993529,4cyclictest25-21ksoftirqd/111:49:191
27020993529,4cyclictest25-21ksoftirqd/110:30:321
27020993529,4cyclictest25-21ksoftirqd/109:37:451
27020993529,4cyclictest25-21ksoftirqd/109:16:071
27020993529,4cyclictest25-21ksoftirqd/108:59:261
27020993529,4cyclictest25-21ksoftirqd/108:09:191
27020993529,4cyclictest25-21ksoftirqd/107:41:391
27020993529,4cyclictest25-21ksoftirqd/107:17:011
27020993528,5cyclictest25-21ksoftirqd/108:16:411
27020993528,5cyclictest25-21ksoftirqd/107:37:101
27019993529,4cyclictest9-21ksoftirqd/011:07:010
27019993529,4cyclictest9-21ksoftirqd/010:50:090
138491350,0ptp4l401ktimersoftd/312:10:113
50798340,8rtkit-daemon0-21swapper/312:34:413
27022993431,2cyclictest41-21ksoftirqd/311:15:003
27022993431,2cyclictest41-21ksoftirqd/310:25:003
27022993430,3cyclictest41-21ksoftirqd/308:05:203
27022993429,3cyclictest41-21ksoftirqd/311:45:003
27022993429,3cyclictest41-21ksoftirqd/311:25:273
27022993429,3cyclictest41-21ksoftirqd/310:20:003
27022993429,3cyclictest41-21ksoftirqd/309:10:153
27022993429,3cyclictest41-21ksoftirqd/307:48:113
27022993428,4cyclictest41-21ksoftirqd/312:28:293
27022993428,4cyclictest41-21ksoftirqd/311:54:063
27021993429,3cyclictest33-21ksoftirqd/211:32:122
27021993428,4cyclictest33-21ksoftirqd/211:47:042
27021993428,4cyclictest33-21ksoftirqd/211:10:092
27021993428,4cyclictest33-21ksoftirqd/210:47:382
27021993428,4cyclictest33-21ksoftirqd/208:52:372
27021993428,4cyclictest33-21ksoftirqd/208:48:482
27021993428,4cyclictest33-21ksoftirqd/207:31:532
27021993427,5cyclictest33-21ksoftirqd/208:34:322
27021993426,5cyclictest33-21ksoftirqd/210:10:012
27020993428,4cyclictest25-21ksoftirqd/112:04:121
27020993428,4cyclictest25-21ksoftirqd/111:16:021
27020993428,4cyclictest25-21ksoftirqd/110:06:051
27020993428,4cyclictest25-21ksoftirqd/108:29:571
27020993428,4cyclictest25-21ksoftirqd/108:12:001
27020993428,3cyclictest26545-21cron11:30:001
27019993428,4cyclictest9-21ksoftirqd/012:22:470
27019993428,4cyclictest9-21ksoftirqd/012:19:420
27019993428,4cyclictest9-21ksoftirqd/008:36:540
27019993428,4cyclictest9-21ksoftirqd/008:04:570
27019993428,4cyclictest9-21ksoftirqd/007:13:260
27022993329,3cyclictest41-21ksoftirqd/309:45:193
27022993329,2cyclictest41-21ksoftirqd/311:10:013
27022993327,4cyclictest41-21ksoftirqd/312:16:503
27022993327,4cyclictest41-21ksoftirqd/309:52:023
27022993327,4cyclictest41-21ksoftirqd/309:27:203
27021993329,3cyclictest33-21ksoftirqd/210:55:132
27021993329,3cyclictest33-21ksoftirqd/210:55:132
27021993328,3cyclictest33-21ksoftirqd/210:38:562
27021993328,3cyclictest33-21ksoftirqd/208:20:102
27021993327,4cyclictest33-21ksoftirqd/212:01:362
27021993327,4cyclictest33-21ksoftirqd/211:42:302
27021993327,4cyclictest33-21ksoftirqd/211:21:192
27021993327,4cyclictest33-21ksoftirqd/211:15:432
27021993327,4cyclictest33-21ksoftirqd/209:25:432
27021993327,4cyclictest33-21ksoftirqd/207:26:202
27021993326,5cyclictest33-21ksoftirqd/207:43:172
27020993328,3cyclictest25-21ksoftirqd/112:14:501
27020993328,3cyclictest25-21ksoftirqd/111:24:551
27020993328,3cyclictest25-21ksoftirqd/109:54:321
27020993328,3cyclictest25-21ksoftirqd/108:51:551
27020993327,4cyclictest25-21ksoftirqd/112:06:441
27020993327,4cyclictest25-21ksoftirqd/111:51:231
27020993327,4cyclictest25-21ksoftirqd/109:24:491
27020993327,4cyclictest25-21ksoftirqd/107:10:581
27019993328,3cyclictest9-21ksoftirqd/007:24:490
27019993327,4cyclictest9-21ksoftirqd/011:26:310
27019993327,4cyclictest9-21ksoftirqd/010:42:470
27019993327,4cyclictest9-21ksoftirqd/009:41:570
27019993327,4cyclictest9-21ksoftirqd/009:38:200
27019993326,4cyclictest9-21ksoftirqd/007:41:300
138491330,10ptp4l401ktimersoftd/307:20:493
27022993229,2cyclictest41-21ksoftirqd/307:55:003
27022993228,2cyclictest41-21ksoftirqd/308:00:003
27022993227,3cyclictest41-21ksoftirqd/312:35:123
27022993227,3cyclictest41-21ksoftirqd/309:05:503
27022993227,3cyclictest41-21ksoftirqd/308:59:363
27022993226,4cyclictest41-21ksoftirqd/308:22:293
2702299321,29cyclictest391rcuc/309:20:133
27021993226,4cyclictest33-21ksoftirqd/212:32:412
27021993225,4cyclictest33-21ksoftirqd/209:07:132
27020993227,3cyclictest25-21ksoftirqd/109:12:571
27020993225,4cyclictest25-21ksoftirqd/111:14:571
27020993225,4cyclictest25-21ksoftirqd/110:11:511
27019993227,3cyclictest9-21ksoftirqd/012:04:100
27019993227,3cyclictest9-21ksoftirqd/011:45:100
27019993226,4cyclictest9-21ksoftirqd/011:36:300
27019993226,4cyclictest9-21ksoftirqd/011:31:280
27019993226,4cyclictest9-21ksoftirqd/009:11:570
27019993226,4cyclictest9-21ksoftirqd/009:09:200
27019993226,4cyclictest9-21ksoftirqd/008:31:530
27019993226,4cyclictest9-21ksoftirqd/008:21:500
27019993226,3cyclictest9-21ksoftirqd/009:47:430
27019993225,4cyclictest9-21ksoftirqd/012:39:250
27022993126,3cyclictest41-21ksoftirqd/310:25:053
27022993125,3cyclictest41-21ksoftirqd/308:25:123
27021993127,3cyclictest33-21ksoftirqd/207:50:122
27021993126,3cyclictest33-21ksoftirqd/212:17:122
27021993126,3cyclictest33-21ksoftirqd/212:11:272
27021993126,3cyclictest33-21ksoftirqd/211:50:112
27021993126,3cyclictest33-21ksoftirqd/210:01:292
27021993126,3cyclictest33-21ksoftirqd/209:34:572
27021993126,3cyclictest33-21ksoftirqd/209:24:552
27021993125,4cyclictest33-21ksoftirqd/210:20:502
27021993125,4cyclictest33-21ksoftirqd/209:36:102
27021993125,4cyclictest33-21ksoftirqd/209:19:282
27021993125,4cyclictest33-21ksoftirqd/208:11:492
27020993125,4cyclictest25-21ksoftirqd/111:09:081
27020993125,4cyclictest25-21ksoftirqd/108:31:221
27020993125,4cyclictest25-21ksoftirqd/107:50:381
27020993125,4cyclictest25-21ksoftirqd/107:49:451
27019993126,3cyclictest9-21ksoftirqd/010:10:010
27019993126,3cyclictest9-21ksoftirqd/008:40:070
27019993126,3cyclictest9-21ksoftirqd/008:11:360
27019993125,4cyclictest9-21ksoftirqd/011:19:020
27019993125,4cyclictest9-21ksoftirqd/010:28:100
27019993125,4cyclictest9-21ksoftirqd/010:11:180
27019993125,4cyclictest9-21ksoftirqd/009:53:210
27019993125,4cyclictest9-21ksoftirqd/008:49:140
27019993124,4cyclictest9-21ksoftirqd/010:30:400
27022993024,4cyclictest41-21ksoftirqd/310:09:043
27021993025,3cyclictest33-21ksoftirqd/212:39:352
27021993025,3cyclictest33-21ksoftirqd/211:06:392
27021993025,3cyclictest33-21ksoftirqd/207:36:242
2702199301,18cyclictest7129-21apt-get09:45:122
27020993025,3cyclictest25-21ksoftirqd/111:00:241
27020993025,3cyclictest25-21ksoftirqd/110:49:211
27020993025,3cyclictest25-21ksoftirqd/110:40:331
27020993024,4cyclictest25-21ksoftirqd/111:34:551
27020993024,4cyclictest25-21ksoftirqd/109:28:181
27019993025,3cyclictest9-21ksoftirqd/012:25:000
27019993025,3cyclictest9-21ksoftirqd/011:02:040
27019993024,4cyclictest9-21ksoftirqd/008:29:400
27019993024,4cyclictest9-21ksoftirqd/008:16:320
27019993024,4cyclictest9-21ksoftirqd/007:58:350
27019993024,4cyclictest9-21ksoftirqd/007:30:430
27019993024,3cyclictest9-21ksoftirqd/010:03:500
27021992924,3cyclictest33-21ksoftirqd/208:28:462
27021992923,4cyclictest33-21ksoftirqd/210:52:202
27021992923,4cyclictest33-21ksoftirqd/209:57:002
27021992923,4cyclictest33-21ksoftirqd/209:50:382
27020992924,3cyclictest25-21ksoftirqd/112:30:151
27020992923,4cyclictest25-21ksoftirqd/111:37:441
27020992923,4cyclictest25-21ksoftirqd/110:36:261
27020992923,4cyclictest25-21ksoftirqd/110:04:411
27020992923,4cyclictest25-21ksoftirqd/109:34:281
27019992923,4cyclictest9-21ksoftirqd/011:56:370
27019992922,4cyclictest9-21ksoftirqd/011:44:130
184222290,8sleep12702099cyclictest12:15:271
2702199286,11cyclictest6761-21apt-get11:55:122
27021992823,3cyclictest33-21ksoftirqd/212:24:002
27021992823,3cyclictest33-21ksoftirqd/210:11:242
27021992823,3cyclictest33-21ksoftirqd/209:03:442
27021992823,3cyclictest33-21ksoftirqd/208:43:562
27020992823,3cyclictest25-21ksoftirqd/108:22:591
27020992823,3cyclictest25-21ksoftirqd/107:57:471
27020992822,4cyclictest25-21ksoftirqd/110:18:371
27019992823,3cyclictest9-21ksoftirqd/012:12:010
27019992823,3cyclictest9-21ksoftirqd/011:22:140
27019992822,4cyclictest9-21ksoftirqd/010:16:140
27019992822,4cyclictest9-21ksoftirqd/009:20:580
27022992723,3cyclictest41-21ksoftirqd/310:45:103
2702199276,19cyclictest0-21swapper/207:45:122
27021992722,3cyclictest33-21ksoftirqd/208:06:212
27021992721,4cyclictest33-21ksoftirqd/210:43:452
2702099273,2cyclictest121rcu_preempt08:40:151
27020992722,3cyclictest25-21ksoftirqd/109:06:321
27020992721,4cyclictest25-21ksoftirqd/111:42:461
27019992723,2cyclictest9-21ksoftirqd/011:50:220
27019992722,3cyclictest9-21ksoftirqd/012:07:490
27019992722,3cyclictest9-21ksoftirqd/009:26:320
27019992722,3cyclictest9-21ksoftirqd/007:19:200
27019992721,4cyclictest9-21ksoftirqd/012:30:460
27019992721,4cyclictest9-21ksoftirqd/007:52:250
27020992622,2cyclictest25-21ksoftirqd/107:27:071
27020992620,4cyclictest25-21ksoftirqd/110:21:221
27019992621,3cyclictest9-21ksoftirqd/010:24:130
27019992620,4cyclictest9-21ksoftirqd/009:30:380
27019992620,4cyclictest9-21ksoftirqd/007:36:450
27020992520,3cyclictest25-21ksoftirqd/109:43:421
27020992419,3cyclictest25-21ksoftirqd/110:59:381
27020992419,3cyclictest25-21ksoftirqd/110:59:381
27019992216,4cyclictest9-21ksoftirqd/008:52:390
27020992116,3cyclictest25-21ksoftirqd/112:35:291
27020992113,5cyclictest9337-21sh09:50:001
27020992015,3cyclictest25-21ksoftirqd/110:30:001
27020992013,5cyclictest25-21ksoftirqd/108:02:171
27020991913,3cyclictest7165-21latency_hist08:40:011
27019991913,3cyclictest25409-21/usr/sbin/munin09:15:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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