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2026-07-27 - 17:46
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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 Jul 27, 2026 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1313721490,4sleep113142-21latency10:30:201
1275421400,6sleep11529999cyclictest09:20:191
305402740,4sleep21530099cyclictest07:40:232
291572700,3sleep129023-21irqrtprio11:05:191
134491700,5ptp4l0-21swapper/010:20:180
134491660,23ptp4l3932-21awk10:10:240
15301996531,9cyclictest41-21ksoftirqd/310:05:173
1530199642,29cyclictest0-21swapper/309:00:223
134491640,4ptp4l13569-21apt-get08:15:010
1529999624,15cyclictest2346-21ntpd08:50:231
134491620,5ptp4l0-21swapper/008:35:280
15301996127,7cyclictest41-21ksoftirqd/308:50:233
1530199612,32cyclictest0-21swapper/309:57:433
134491610,4ptp4l0-21swapper/207:07:502
15301996029,7cyclictest41-21ksoftirqd/310:40:203
134491600,3ptp4l30378-21apt-get10:00:140
1530199592,30cyclictest0-21swapper/308:58:373
1529999592,11cyclictest21398-21latency_hist10:50:011
134491590,4ptp4l0-21swapper/207:39:212
134491590,3ptp4l10530-21meminfo09:15:200
134491580,13ptp4l0-21swapper/008:25:140
1530199573,5cyclictest41-21ksoftirqd/309:20:003
1530199572,36cyclictest0-21swapper/307:37:363
134491570,5ptp4l0-21swapper/008:01:040
134491570,4ptp4l0-21swapper/011:56:400
134491570,4ptp4l0-21swapper/007:12:540
134491570,3ptp4l0-21swapper/112:10:451
134491570,3ptp4l0-21swapper/010:06:370
134491570,3ptp4l0-21swapper/008:30:570
15301995627,9cyclictest41-21ksoftirqd/312:20:143
1530199562,30cyclictest0-21swapper/312:13:593
1529999563,10cyclictest757-21polkitd11:15:281
134491560,4ptp4l0-21swapper/007:29:200
134491560,3ptp4l0-21swapper/209:45:092
134491560,3ptp4l0-21swapper/109:13:021
134491560,3ptp4l0-21swapper/109:13:021
134491560,3ptp4l0-21swapper/107:34:241
1529999553,17cyclictest19788-21cat09:35:201
134491550,4ptp4l0-21swapper/307:05:283
134491550,3ptp4l0-21swapper/111:56:511
134491550,10ptp4l0-21swapper/008:20:140
1530199543,6cyclictest0-21swapper/309:45:273
15301995423,7cyclictest41-21ksoftirqd/309:40:303
1530199542,37cyclictest0-21swapper/311:25:273
1529999547,7cyclictest0-21swapper/110:01:261
134491540,4ptp4l0-21swapper/009:12:450
134491540,4ptp4l0-21swapper/009:12:450
134491540,4ptp4l0-21swapper/008:51:030
134491540,3ptp4l0-21swapper/007:23:100
312262530,4sleep20-21swapper/210:00:212
1530199534,7cyclictest41-21ksoftirqd/309:39:593
1530199533,8cyclictest41-21ksoftirqd/308:50:013
1530199530,13cyclictest41-21ksoftirqd/310:30:143
134491530,4ptp4l0-21swapper/009:32:060
134491530,4ptp4l0-21swapper/008:08:540
1530199525,9cyclictest41-21ksoftirqd/311:20:233
1530199525,6cyclictest22209-21cron07:25:003
1530199523,7cyclictest0-21swapper/308:30:183
1530199523,5cyclictest41-21ksoftirqd/312:19:593
1530199522,7cyclictest0-21swapper/309:10:253
1530199522,7cyclictest0-21swapper/309:10:253
1530199522,7cyclictest0-21swapper/308:15:113
1530199522,11cyclictest0-21swapper/308:28:013
1530199520,6cyclictest0-21swapper/310:15:173
1529999527,6cyclictest0-21swapper/111:44:291
1529999524,6cyclictest134491ptp4l09:40:231
1529999520,10cyclictest21278-21open_files07:20:231
134691520,10getstats9-21ksoftirqd/010:27:090
134491520,4ptp4l0-21swapper/210:55:512
134491520,4ptp4l0-21swapper/210:39:142
134491520,4ptp4l0-21swapper/010:48:570
134491520,4ptp4l0-21swapper/009:56:180
134491520,3ptp4l0-21swapper/211:28:082
134491520,3ptp4l0-21swapper/208:26:552
1530199515,8cyclictest41-21ksoftirqd/312:30:243
1530199515,8cyclictest41-21ksoftirqd/312:30:243
1530199515,7cyclictest41-21ksoftirqd/311:40:013
1530199514,7cyclictest41-21ksoftirqd/309:34:593
1530199513,7cyclictest41-21ksoftirqd/309:50:123
1530199513,7cyclictest0-21swapper/308:10:253
1530199512,8cyclictest0-21swapper/307:25:593
15301995119,7cyclictest41-21ksoftirqd/309:20:213
1530199510,6cyclictest41-21ksoftirqd/310:50:273
1530199510,13cyclictest41-21ksoftirqd/307:20:003
1529999516,11cyclictest0-21swapper/107:17:351
134491510,5ptp4l0-21swapper/211:55:212
134491510,4ptp4l0-21swapper/010:16:420
134491510,4ptp4l0-21swapper/009:20:490
1530199505,8cyclictest41-21ksoftirqd/312:00:143
1530199505,7cyclictest41-21ksoftirqd/311:40:293
1530199504,8cyclictest41-21ksoftirqd/308:00:263
1530199503,6cyclictest41-21ksoftirqd/308:20:263
1530199502,7cyclictest0-21swapper/312:05:253
1530199502,6cyclictest0-21swapper/312:27:393
1530199502,6cyclictest0-21swapper/310:29:593
1530199502,6cyclictest0-21swapper/308:39:593
1530199502,5cyclictest41-21ksoftirqd/311:55:223
1530199502,5cyclictest41-21ksoftirqd/310:20:263
1530199500,6cyclictest41-21ksoftirqd/311:45:223
134491500,4ptp4l0-21swapper/009:03:580
134491500,13ptp4l0-21swapper/209:39:412
1530199494,11cyclictest0-21swapper/307:55:163
1530199493,8cyclictest0-21swapper/307:45:563
1530199493,5cyclictest41-21ksoftirqd/307:30:173
1530199492,7cyclictest0-21swapper/308:40:193
1530199492,6cyclictest0-21swapper/311:12:133
1530199492,6cyclictest0-21swapper/309:25:153
1530199492,6cyclictest0-21swapper/308:05:273
1530199491,5cyclictest0-21swapper/310:12:153
1529999493,17cyclictest30728-21apt-key12:20:001
134691490,9getstats0-21swapper/010:40:060
134491490,5ptp4l0-21swapper/007:09:480
134491490,4ptp4l0-21swapper/009:06:260
134491490,3ptp4l0-21swapper/010:34:130
134491490,3ptp4l0-21swapper/009:50:270
134491490,3ptp4l0-21swapper/007:34:380
134491490,14ptp4l9-21ksoftirqd/010:50:190
1530199485,8cyclictest41-21ksoftirqd/311:05:223
1530199485,8cyclictest41-21ksoftirqd/310:45:183
1530199483,6cyclictest41-21ksoftirqd/311:50:163
1530199482,7cyclictest0-21swapper/311:00:143
1530099482,43cyclictest3145-21kworker/2:210:33:272
1529999485,11cyclictest0-21swapper/107:10:281
134491480,5ptp4l0-21swapper/012:23:470
134491480,3ptp4l0-21swapper/211:50:202
134491480,2ptp4l0-21swapper/209:00:092
1530199474,7cyclictest41-21ksoftirqd/307:50:203
1530199474,6cyclictest41-21ksoftirqd/310:55:183
1530199474,6cyclictest41-21ksoftirqd/310:40:003
1530199474,6cyclictest41-21ksoftirqd/307:40:253
1530199473,8cyclictest41-21ksoftirqd/307:15:013
1530199472,11cyclictest0-21swapper/309:06:333
1529999474,9cyclictest2981-21ntp_kernel_pll_07:50:211
1529999473,14cyclictest24746-21cat10:55:231
134491470,4ptp4l0-21swapper/112:33:061
134491470,4ptp4l0-21swapper/112:33:061
134491470,4ptp4l0-21swapper/007:49:080
134491470,3ptp4l0-21swapper/209:14:112
134491470,3ptp4l0-21swapper/209:14:112
15301994643,2cyclictest391rcuc/312:35:253
1530199462,11cyclictest0-21swapper/310:00:173
1529999465,10cyclictest0-21swapper/110:36:161
1529999462,9cyclictest0-21swapper/107:57:261
1529999462,6cyclictest0-21swapper/110:28:031
134491460,3ptp4l0-21swapper/008:57:310
134491460,11ptp4l0-21swapper/211:20:452
1530199456,7cyclictest41-21ksoftirqd/311:15:223
1530199453,8cyclictest41-21ksoftirqd/311:35:013
134491450,3ptp4l24753-21apt-get07:30:132
134491450,3ptp4l1530099cyclictest11:09:512
134491450,12ptp4l33-21ksoftirqd/207:58:312
1529999446,6cyclictest0-21swapper/111:39:521
1529999446,11cyclictest134491ptp4l08:05:181
134491440,9ptp4l0-21swapper/207:29:252
134491440,5ptp4l0-21swapper/008:45:320
134491440,4ptp4l0-21swapper/007:40:470
134491440,3ptp4l0-21swapper/111:52:071
134491440,3ptp4l0-21swapper/111:12:381
1529999434,6cyclictest10669-21ntpq09:15:221
1529999432,9cyclictest0-21swapper/107:25:151
1529999431,11cyclictest26935-21systemctl08:40:271
134491430,9ptp4l0-21swapper/210:44:262
134491430,9ptp4l0-21swapper/210:08:492
134491430,8ptp4l0-21swapper/211:40:442
134491430,6ptp4l14963-21ls08:15:181
134491430,5ptp4l0-21swapper/108:25:131
134491430,4ptp4l7978-21diskstats10:20:141
134491430,4ptp4l27414-21df_inode07:35:160
134491430,3ptp4l3956-21apt-get07:55:030
134491430,3ptp4l16353-21apt-get08:20:121
134491430,10ptp4l0-21swapper/211:48:312
1529999424,37cyclictest7792-21kworker/1:207:37:491
1529999422,10cyclictest0-21swapper/107:42:261
134691420,10getstats0-21swapper/009:29:020
134691420,10getstats0-21swapper/008:43:100
134491420,9ptp4l0-21swapper/211:04:522
134491420,9ptp4l0-21swapper/209:22:322
134491420,5ptp4l8042-21ntp_states08:00:241
134491420,4ptp4l0-21swapper/209:44:452
134491420,4ptp4l0-21swapper/011:41:200
134491420,4ptp4l0-21swapper/007:50:020
15300994135,4cyclictest33-21ksoftirqd/209:50:302
1529999416,5cyclictest0-21swapper/109:02:081
134691410,10getstats0-21swapper/012:39:010
134691410,10getstats0-21swapper/011:39:130
134691410,10getstats0-21swapper/010:59:440
134491410,8ptp4l0-21swapper/210:54:522
134491410,7ptp4l0-21swapper/107:08:591
134491410,5ptp4l5424-21hddtemp_smartct09:05:182
134491410,4ptp4l18577-21memory07:15:222
134491410,4ptp4l0-21swapper/211:10:102
134491410,4ptp4l0-21swapper/209:59:132
134491410,4ptp4l0-21swapper/208:41:142
134491410,4ptp4l0-21swapper/207:22:302
134491410,4ptp4l0-21swapper/012:32:350
134491410,4ptp4l0-21swapper/012:32:350
134491410,3ptp4l0-21swapper/210:21:562
134491410,3ptp4l0-21swapper/107:48:291
134491410,10ptp4l0-21swapper/111:00:081
15300994034,4cyclictest33-21ksoftirqd/212:25:322
1529999406,6cyclictest0-21swapper/108:14:151
134491400,5ptp4l0-21swapper/212:05:142
134491400,5ptp4l0-21swapper/210:10:172
134491400,5ptp4l0-21swapper/112:05:581
134491400,5ptp4l0-21swapper/111:45:151
134491400,5ptp4l0-21swapper/109:50:231
134491400,5ptp4l0-21swapper/009:45:130
134491400,4ptp4l5620-21diskstats11:25:160
134491400,4ptp4l26986-21irqstats11:00:180
134491400,4ptp4l17996-21ntp_states10:40:231
134491400,4ptp4l1529899cyclictest11:15:220
134491400,4ptp4l11830-21diskstats08:10:150
134491400,4ptp4l0-21swapper/212:17:592
134491400,4ptp4l0-21swapper/210:47:142
134491400,4ptp4l0-21swapper/210:25:372
134491400,4ptp4l0-21swapper/210:18:072
134491400,4ptp4l0-21swapper/209:17:072
134491400,4ptp4l0-21swapper/208:55:212
134491400,4ptp4l0-21swapper/208:51:492
134491400,4ptp4l0-21swapper/208:45:222
134491400,4ptp4l0-21swapper/208:35:372
134491400,4ptp4l0-21swapper/208:34:342
134491400,4ptp4l0-21swapper/208:17:242
134491400,4ptp4l0-21swapper/207:52:252
134491400,4ptp4l0-21swapper/110:10:211
134491400,4ptp4l0-21swapper/109:45:291
134491400,4ptp4l0-21swapper/108:37:351
134491400,4ptp4l0-21swapper/012:26:350
134491400,4ptp4l0-21swapper/012:06:590
134491400,4ptp4l0-21swapper/007:18:560
134491400,3ptp4l9224-21apt-get08:05:122
134491400,3ptp4l482-21perl08:55:161
134491400,3ptp4l16275-21meminfo07:10:202
134491400,3ptp4l1364-21iostat_ios12:25:181
134491400,3ptp4l0-21swapper/208:00:272
134491400,2ptp4l0-21swapper/110:05:131
1529999393,5cyclictest0-21swapper/111:29:131
134491390,5ptp4l0-21swapper/011:33:580
134491390,5ptp4l0-21swapper/009:42:360
134491390,4ptp4l10212-21diskstats11:35:152
134491390,4ptp4l0-21swapper/212:32:182
134491390,4ptp4l0-21swapper/212:32:182
134491390,4ptp4l0-21swapper/212:20:302
134491390,4ptp4l0-21swapper/211:15:252
134491390,4ptp4l0-21swapper/209:33:012
134491390,4ptp4l0-21swapper/209:25:072
134491390,4ptp4l0-21swapper/208:20:502
134491390,4ptp4l0-21swapper/208:11:312
134491390,4ptp4l0-21swapper/207:49:012
134491390,4ptp4l0-21swapper/112:16:551
134491390,4ptp4l0-21swapper/110:16:531
134491390,4ptp4l0-21swapper/109:30:221
134491390,4ptp4l0-21swapper/109:07:541
134491390,4ptp4l0-21swapper/108:45:271
134491390,4ptp4l0-21swapper/012:19:390
134491390,4ptp4l0-21swapper/012:10:230
134491390,4ptp4l0-21swapper/012:00:160
134491390,4ptp4l0-21swapper/011:49:340
134491390,4ptp4l0-21swapper/011:22:040
134491390,4ptp4l0-21swapper/011:05:070
134491390,4ptp4l0-21swapper/009:35:290
134491390,3ptp4l22366-21ls08:30:271
134491390,3ptp4l14769-21iostat_ios09:25:181
134491390,3ptp4l0-21swapper/212:35:172
134491390,3ptp4l0-21swapper/109:55:191
1529999383,10cyclictest0-21swapper/111:23:431
134491380,4ptp4l7961-21fschecks_count11:30:162
134491380,4ptp4l0-21swapper/212:01:262
134491380,4ptp4l0-21swapper/110:50:191
134491380,4ptp4l0-21swapper/011:10:180
134491380,3ptp4l15685-21ntp_states10:35:250
134491380,3ptp4l0-21swapper/212:11:122
134491370,4ptp4l0-21swapper/112:37:271
134491370,4ptp4l0-21swapper/112:00:021
134491370,4ptp4l0-21swapper/111:30:231
134491370,3ptp4l0-21swapper/011:51:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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