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2026-09-23 - 20:59
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Wed Sep 23, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2687121700,3sleep23203099cyclictest11:35:272
3187521390,3sleep03202699cyclictest11:45:280
32028997227,4cyclictest25-21ksoftirqd/111:35:001
32028997026,6cyclictest25-21ksoftirqd/108:45:191
134491690,4ptp4l0-21swapper/212:34:492
32028996833,6cyclictest25-21ksoftirqd/110:34:591
32028996828,7cyclictest25-21ksoftirqd/111:35:281
32028996827,7cyclictest25-21ksoftirqd/108:10:161
32028996729,7cyclictest25-21ksoftirqd/108:25:131
32028996619,3cyclictest25-21ksoftirqd/107:10:161
32028996434,4cyclictest25-21ksoftirqd/111:45:151
32028996430,3cyclictest25-21ksoftirqd/112:15:241
32028996422,9cyclictest25-21ksoftirqd/111:24:591
32026996431,3cyclictest9-21ksoftirqd/012:00:300
134491640,5ptp4l0-21swapper/209:45:202
134491640,4ptp4l0-21swapper/008:05:120
32028996229,3cyclictest25-21ksoftirqd/110:15:141
32028996227,6cyclictest25-21ksoftirqd/108:55:171
32028996227,6cyclictest25-21ksoftirqd/108:55:171
32028996226,9cyclictest25-21ksoftirqd/111:10:231
32028996125,6cyclictest25-21ksoftirqd/110:40:111
134491610,4ptp4l0-21swapper/008:15:120
32028996027,3cyclictest25-21ksoftirqd/107:15:151
32028996021,10cyclictest25-21ksoftirqd/109:35:261
32026996028,8cyclictest9-21ksoftirqd/009:20:000
134491600,4ptp4l26433-21irqstats11:35:210
32028995928,4cyclictest25-21ksoftirqd/108:40:011
32028995926,4cyclictest25-21ksoftirqd/110:15:001
32028995922,6cyclictest25-21ksoftirqd/109:40:161
32026995929,3cyclictest9-21ksoftirqd/011:55:130
32026995929,3cyclictest9-21ksoftirqd/008:00:000
32026995924,3cyclictest9-21ksoftirqd/009:55:290
3203199586,7cyclictest18439-21latency_hist11:20:003
3203199585,10cyclictest14403-21irqrtprio11:10:233
32028995840,3cyclictest25-21ksoftirqd/107:50:001
32028995826,6cyclictest25-21ksoftirqd/110:55:191
32028995824,4cyclictest25-21ksoftirqd/107:50:171
32028995811,6cyclictest25-21ksoftirqd/108:45:001
32026995831,3cyclictest9-21ksoftirqd/008:40:250
32026995816,5cyclictest9-21ksoftirqd/008:55:190
32026995816,5cyclictest9-21ksoftirqd/008:55:180
134491580,4ptp4l0-21swapper/311:22:253
134491580,4ptp4l0-21swapper/011:15:200
3203199578,6cyclictest0-21swapper/312:15:263
3203199576,6cyclictest0-21swapper/309:20:263
3203199571,10cyclictest27217-21latency_hist08:10:013
32028995735,7cyclictest25-21ksoftirqd/110:35:281
32028995729,3cyclictest25-21ksoftirqd/109:00:291
32028995728,6cyclictest25-21ksoftirqd/108:30:271
32028995725,8cyclictest25-21ksoftirqd/109:20:171
32028995723,9cyclictest25-21ksoftirqd/110:50:181
32028995723,9cyclictest25-21ksoftirqd/109:45:171
32026995729,4cyclictest9-21ksoftirqd/010:30:290
32026995728,4cyclictest9-21ksoftirqd/012:30:260
32026995728,3cyclictest9-21ksoftirqd/010:40:240
134491570,5ptp4l0-21swapper/012:20:030
134491570,3ptp4l0-21swapper/311:55:173
134491570,3ptp4l0-21swapper/111:00:111
134491570,3ptp4l0-21swapper/010:15:270
134491570,27ptp4l41-21ksoftirqd/311:37:473
3203199568,6cyclictest0-21swapper/307:20:233
3203199567,6cyclictest0-21swapper/309:00:293
3203199567,6cyclictest0-21swapper/307:55:173
3203199565,6cyclictest6778-21date09:45:003
3203199564,6cyclictest7043-21cut10:55:133
32031995646,7cyclictest3695-21mailstats09:35:253
32026995629,4cyclictest9-21ksoftirqd/007:10:200
32026995628,4cyclictest9-21ksoftirqd/008:10:130
32026995618,3cyclictest9-21ksoftirqd/010:50:280
134491560,3ptp4l0-21swapper/211:25:222
134491560,3ptp4l0-21swapper/112:14:561
134491560,3ptp4l0-21swapper/012:10:270
134491560,14ptp4l14515-21meminfo07:40:192
3203199557,6cyclictest0-21swapper/312:35:153
3203199557,6cyclictest0-21swapper/312:10:293
3203199556,6cyclictest0-21swapper/308:00:153
3203199555,11cyclictest0-21swapper/312:09:563
3203199550,14cyclictest7021-21grep09:45:113
3202899554,8cyclictest25-21ksoftirqd/112:40:001
32028995518,6cyclictest25-21ksoftirqd/110:05:001
32028995514,6cyclictest25-21ksoftirqd/110:25:251
32026995528,4cyclictest9-21ksoftirqd/011:20:220
32026995528,3cyclictest9-21ksoftirqd/012:05:120
32026995525,3cyclictest9-21ksoftirqd/008:30:270
32026995523,3cyclictest9-21ksoftirqd/011:50:220
134491550,4ptp4l0-21swapper/209:37:542
8052540,2sleep2321ktimersoftd/211:50:222
3203199547,7cyclictest0-21swapper/307:35:173
3203199546,11cyclictest0-21swapper/307:15:233
3203199545,6cyclictest4313-21sed08:30:013
3203199545,6cyclictest14210-21cut07:40:183
32026995426,4cyclictest9-21ksoftirqd/009:40:150
32026995417,6cyclictest9-21ksoftirqd/012:29:590
32026995414,3cyclictest9-21ksoftirqd/008:49:590
134491540,4ptp4l0-21swapper/208:56:262
134491540,4ptp4l0-21swapper/208:56:252
134491540,4ptp4l0-21swapper/009:39:470
134491540,3ptp4l0-21swapper/009:30:000
3203199537,7cyclictest0-21swapper/307:12:083
3203199536,6cyclictest23713-21grep11:30:183
3202899536,7cyclictest25-21ksoftirqd/112:20:131
32028995321,6cyclictest25-21ksoftirqd/107:20:271
32028995311,7cyclictest25-21ksoftirqd/109:57:381
32026995323,3cyclictest9-21ksoftirqd/007:25:200
32026995321,3cyclictest9-21ksoftirqd/009:30:300
32026995316,7cyclictest9-21ksoftirqd/012:35:230
134491530,4ptp4l0-21swapper/108:24:291
3203199524,8cyclictest1521-21cat09:30:303
3202899529,6cyclictest25-21ksoftirqd/110:50:001
3202899528,3cyclictest134691getstats11:50:231
3202899523,2cyclictest121rcu_preempt12:34:591
32028995224,8cyclictest25-21ksoftirqd/109:10:011
32028995220,8cyclictest25-21ksoftirqd/109:50:161
32026995226,3cyclictest9-21ksoftirqd/011:30:280
32026995226,3cyclictest9-21ksoftirqd/011:00:190
32026995225,3cyclictest9-21ksoftirqd/010:28:170
134491520,4ptp4l13287-21chrt07:39:550
134491520,3ptp4l0-21swapper/211:10:002
3203199512,6cyclictest1567-21timerandwakeup11:50:313
32028995134,4cyclictest25-21ksoftirqd/111:15:251
3202899513,10cyclictest25-21ksoftirqd/107:35:011
32028995120,9cyclictest25-21ksoftirqd/109:30:161
32028995117,3cyclictest25-21ksoftirqd/107:40:361
3202899510,6cyclictest25-21ksoftirqd/108:05:221
32026995125,4cyclictest9-21ksoftirqd/008:00:110
32026995124,3cyclictest9-21ksoftirqd/009:00:170
32026995122,4cyclictest9-21ksoftirqd/010:45:180
32026995122,4cyclictest9-21ksoftirqd/010:10:280
134491510,5ptp4l0-21swapper/307:06:083
134491510,5ptp4l0-21swapper/207:05:532
134491510,4ptp4l0-21swapper/211:16:202
134491510,4ptp4l0-21swapper/209:32:382
134491510,3ptp4l0-21swapper/211:40:292
3203199507,7cyclictest0-21swapper/309:15:143
3203199507,6cyclictest0-21swapper/312:30:273
3203199506,6cyclictest0-21swapper/311:03:243
3203199506,6cyclictest0-21swapper/310:22:403
3202899505,8cyclictest25-21ksoftirqd/112:00:311
3202899504,8cyclictest25-21ksoftirqd/109:10:261
3202899504,8cyclictest0-21swapper/109:15:021
32028995017,4cyclictest25-21ksoftirqd/109:30:011
3202899501,2cyclictest121rcu_preempt08:00:001
32026995034,7cyclictest27123-21kworker/0:012:15:130
32026995021,3cyclictest9-21ksoftirqd/009:20:200
32026995016,9cyclictest9-21ksoftirqd/009:50:220
32026995015,6cyclictest9-21ksoftirqd/011:25:240
134491500,4ptp4l0-21swapper/208:37:322
134491500,4ptp4l0-21swapper/112:09:401
3203199497,6cyclictest0-21swapper/307:46:593
3203199496,6cyclictest0-21swapper/310:35:233
3203199493,6cyclictest41-21ksoftirqd/311:40:273
3203199490,6cyclictest16933-21hddtemp_smartct12:25:163
32030994930,17cyclictest33-21ksoftirqd/208:19:592
3202899497,3cyclictest25-21ksoftirqd/111:40:131
3202899494,8cyclictest25-21ksoftirqd/111:55:171
32028994931,8cyclictest25-21ksoftirqd/111:25:121
32028994930,9cyclictest25-21ksoftirqd/108:15:161
3202899491,2cyclictest121rcu_preempt07:35:161
32026994928,4cyclictest9-21ksoftirqd/008:40:000
32026994924,4cyclictest9-21ksoftirqd/008:24:360
32026994917,4cyclictest9-21ksoftirqd/011:40:220
134491490,4ptp4l0-21swapper/310:48:493
134491490,4ptp4l0-21swapper/212:18:392
134491490,4ptp4l0-21swapper/207:51:462
3202899485,3cyclictest25-21ksoftirqd/110:05:251
32028994833,4cyclictest25-21ksoftirqd/111:05:201
3202899481,5cyclictest14987-21sendmail_mailqu08:50:261
32028994814,8cyclictest25-21ksoftirqd/107:30:011
32026994818,6cyclictest9-21ksoftirqd/007:44:380
32026994818,3cyclictest9-21ksoftirqd/010:05:120
32026994816,4cyclictest9-21ksoftirqd/010:00:160
32026994816,3cyclictest9-21ksoftirqd/007:50:120
32026994815,6cyclictest9-21ksoftirqd/008:25:180
134491480,4ptp4l0-21swapper/211:48:262
134491480,4ptp4l0-21swapper/211:11:042
134491480,4ptp4l0-21swapper/209:42:392
134491480,3ptp4l0-21swapper/208:29:442
134491480,3ptp4l0-21swapper/011:06:250
3203199478,12cyclictest0-21swapper/311:25:253
3203199477,6cyclictest0-21swapper/310:13:133
3203199476,7cyclictest0-21swapper/310:50:173
3203199476,7cyclictest0-21swapper/310:30:323
3203199476,12cyclictest0-21swapper/308:20:213
3203199476,11cyclictest0-21swapper/309:06:303
3203199471,4cyclictest0-21swapper/310:05:403
32028994743,2cyclictest241ktimersoftd/108:00:211
32026994719,3cyclictest9-21ksoftirqd/009:10:280
32026994718,3cyclictest9-21ksoftirqd/008:50:270
32026994715,3cyclictest9-21ksoftirqd/009:45:140
134491470,4ptp4l0-21swapper/212:02:012
134491470,3ptp4l0-21swapper/209:53:342
134491470,15ptp4l0-21swapper/210:04:332
3203199468,6cyclictest0-21swapper/310:00:143
3203199465,6cyclictest0-21swapper/307:50:153
3203199464,6cyclictest0-21swapper/311:45:153
3202899462,2cyclictest121rcu_preempt12:30:001
3202699466,4cyclictest9-21ksoftirqd/010:20:170
32026994630,4cyclictest9-21ksoftirqd/007:19:590
134491460,4ptp4l0-21swapper/209:04:282
134491460,4ptp4l0-21swapper/011:13:440
3203199455,7cyclictest0-21swapper/308:40:143
3203199451,4cyclictest0-21swapper/309:50:473
32030994538,4cyclictest33-21ksoftirqd/210:55:002
3202899450,2cyclictest121rcu_preempt10:20:191
32026994537,3cyclictest9-21ksoftirqd/010:57:330
32026994531,4cyclictest9-21ksoftirqd/007:30:270
32026994520,3cyclictest9-21ksoftirqd/010:38:320
134491450,4ptp4l16176-21apt-get10:05:112
3203199446,11cyclictest0-21swapper/307:30:273
3203199444,6cyclictest0-21swapper/309:55:243
3203199444,6cyclictest0-21swapper/308:35:153
3203199442,6cyclictest0-21swapper/309:11:333
32026994430,4cyclictest9-21ksoftirqd/009:05:140
3202699441,3cyclictest121rcu_preempt07:45:130
134491440,8ptp4l0-21swapper/208:50:182
134491440,4ptp4l0-21swapper/212:13:312
3203199432,7cyclictest15147-21ssh08:50:283
3203199432,10cyclictest0-21swapper/312:20:163
32030994336,4cyclictest33-21ksoftirqd/208:45:242
32026994321,2cyclictest9-21ksoftirqd/007:21:220
134491430,9ptp4l0-21swapper/211:21:002
134491430,9ptp4l0-21swapper/207:59:042
134491430,9ptp4l0-21swapper/207:12:112
134491430,5ptp4l22982-21apt-get09:10:132
134491430,3ptp4l0-21swapper/209:22:362
134491430,10ptp4l0-21swapper/208:44:532
46198420,4rtkit-daemon0-21swapper/210:45:252
46198420,10rtkit-daemon0-21swapper/210:56:032
46198420,10rtkit-daemon0-21swapper/207:38:252
3203199425,6cyclictest0-21swapper/310:15:163
3203199422,26cyclictest0-21swapper/310:43:123
134691420,10getstats0-21swapper/212:07:052
134691420,10getstats0-21swapper/209:18:142
134691420,10getstats0-21swapper/207:46:262
134491420,9ptp4l0-21swapper/208:20:002
134491420,5ptp4l11940-21perl11:05:153
134491420,4ptp4l23149-21apt-get10:20:142
134491420,4ptp4l0-21swapper/208:30:132
134491420,3ptp4l25442-21apt-get10:25:122
46198410,9rtkit-daemon0-21swapper/211:04:382
3203199413,2cyclictest137891phc2sys09:29:283
134691410,10getstats0-21swapper/210:13:392
134491410,9ptp4l0-21swapper/308:32:173
134491410,8ptp4l0-21swapper/208:01:262
134491410,6ptp4l0-21swapper/308:10:233
134491410,5ptp4l0-21swapper/308:45:283
134491410,4ptp4l20827-21apt-get10:15:122
134491410,4ptp4l0-21swapper/308:55:253
134491410,4ptp4l0-21swapper/308:55:253
134491410,4ptp4l0-21swapper/209:07:382
134491410,3ptp4l32353-21apt-get10:40:112
134491410,3ptp4l30032-21apt-get10:35:122
134491410,10ptp4l0-21swapper/212:22:022
3203199402,6cyclictest0-21swapper/312:05:013
134691400,10getstats0-21swapper/207:23:092
134491400,4ptp4l0-21swapper/208:06:572
134491400,3ptp4l11565-21apt-get09:55:122
32030993933,3cyclictest33-21ksoftirqd/212:40:002
32030993933,3cyclictest33-21ksoftirqd/211:55:182
134491390,5ptp4l0-21swapper/210:30:282
134491390,4ptp4l0-21swapper/310:26:513
134491390,4ptp4l0-21swapper/209:25:282
134491390,4ptp4l0-21swapper/207:27:402
134491380,4ptp4l0-21swapper/308:17:023
134491380,4ptp4l0-21swapper/307:28:233
134491380,4ptp4l0-21swapper/212:25:212
134491380,4ptp4l0-21swapper/208:10:222
134491380,4ptp4l0-21swapper/207:34:542
134491380,4ptp4l0-21swapper/207:15:062
134491380,3ptp4l0-21swapper/211:30:422
294892223,12sleep129504-21apt-get07:05:111
46198150,12rtkit-daemon460-21rtkit-daemon07:06:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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