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2025-11-29 - 19:42
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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 Sat Nov 29, 2025 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1175121590,6sleep21330599cyclictest11:40:312
1916421210,4sleep00-21swapper/007:20:250
2847191640,4ptp4l30443-21apt-get11:15:130
2847191610,3ptp4l552-21apt-get11:20:130
2847191600,4ptp4l0-21swapper/212:10:412
13304996021,8cyclictest25-21ksoftirqd/112:15:201
232152590,4sleep01330399cyclictest12:05:280
2847191580,5ptp4l0-21swapper/207:07:182
2847191580,4ptp4l0-21swapper/208:38:212
2847191580,3ptp4l0-21swapper/211:23:072
2847191570,4ptp4l0-21swapper/310:53:123
2847191570,4ptp4l0-21swapper/310:53:123
2847191570,3ptp4l0-21swapper/012:20:280
1330599578,5cyclictest33-21ksoftirqd/210:15:242
13304995725,4cyclictest25-21ksoftirqd/108:05:451
13304995720,6cyclictest25-21ksoftirqd/108:11:191
2847191560,3ptp4l0-21swapper/110:05:201
2847191560,3ptp4l0-21swapper/108:15:251
2847191560,3ptp4l0-21swapper/012:30:210
2847191560,3ptp4l0-21swapper/012:10:180
13304995627,5cyclictest25-21ksoftirqd/110:40:201
2847191550,5ptp4l0-21swapper/011:40:310
2847191550,4ptp4l0-21swapper/211:27:582
2847191550,3ptp4l0-21swapper/111:05:491
2847191550,3ptp4l0-21swapper/008:00:230
13304995525,4cyclictest25-21ksoftirqd/112:25:261
13304995520,7cyclictest25-21ksoftirqd/110:50:211
13304995520,7cyclictest25-21ksoftirqd/110:50:211
2847191540,4ptp4l0-21swapper/110:49:521
2847191540,3ptp4l0-21swapper/008:09:580
13306995419,7cyclictest41-21ksoftirqd/311:43:063
1330499543,7cyclictest25-21ksoftirqd/112:00:001
2847191530,4ptp4l0-21swapper/107:39:071
2847191530,3ptp4l0-21swapper/308:27:443
2847191530,3ptp4l0-21swapper/009:05:230
13304995324,8cyclictest25-21ksoftirqd/109:05:211
13304995317,6cyclictest25-21ksoftirqd/107:50:261
2847191520,4ptp4l0-21swapper/311:47:323
2847191520,4ptp4l0-21swapper/310:57:193
2847191520,4ptp4l0-21swapper/310:57:193
2847191520,4ptp4l0-21swapper/209:21:042
2847191520,4ptp4l0-21swapper/208:16:562
2847191520,4ptp4l0-21swapper/109:43:361
2847191520,4ptp4l0-21swapper/008:51:170
2847191520,3ptp4l6260-21/usr/sbin/munin09:10:300
1330499526,3cyclictest25-21ksoftirqd/107:15:161
13304995224,9cyclictest25-21ksoftirqd/108:45:191
13304995220,7cyclictest25-21ksoftirqd/111:13:001
2847191510,4ptp4l0-21swapper/209:36:532
2847191510,4ptp4l0-21swapper/110:28:411
2847191510,4ptp4l0-21swapper/110:11:221
2847191510,4ptp4l0-21swapper/109:01:101
2847191510,4ptp4l0-21swapper/108:54:251
2847191510,4ptp4l0-21swapper/009:15:560
2847191510,3ptp4l0-21swapper/010:14:090
2847191510,3ptp4l0-21swapper/008:19:210
13306995120,8cyclictest41-21ksoftirqd/308:40:003
13305995119,9cyclictest33-21ksoftirqd/212:07:162
13305995113,11cyclictest33-21ksoftirqd/210:28:272
1330499515,3cyclictest121rcu_preempt11:00:001
1330499515,3cyclictest121rcu_preempt11:00:001
1330499514,7cyclictest25-21ksoftirqd/107:50:011
13304995122,8cyclictest25-21ksoftirqd/108:44:591
13304995122,4cyclictest25-21ksoftirqd/110:00:231
13304995120,6cyclictest25-21ksoftirqd/108:20:271
13304995120,4cyclictest25-21ksoftirqd/108:30:141
13304995119,4cyclictest25-21ksoftirqd/109:34:281
13304995118,6cyclictest25-21ksoftirqd/109:10:011
13304995117,4cyclictest25-21ksoftirqd/107:20:191
318482500,3sleep231846-21systemctl09:00:012
2847191500,4ptp4l0-21swapper/211:15:092
2847191500,4ptp4l0-21swapper/211:02:192
2847191500,4ptp4l0-21swapper/111:51:241
2847191500,4ptp4l0-21swapper/011:09:570
2847191500,4ptp4l0-21swapper/010:34:390
2847191500,3ptp4l0-21swapper/107:56:241
13305995020,8cyclictest33-21ksoftirqd/212:22:292
1330499506,8cyclictest25-21ksoftirqd/111:00:171
13304995024,8cyclictest25-21ksoftirqd/109:50:291
13304995023,4cyclictest25-21ksoftirqd/111:35:221
13304995021,6cyclictest25-21ksoftirqd/109:30:001
13304995019,7cyclictest25-21ksoftirqd/107:25:201
13304995018,4cyclictest25-21ksoftirqd/112:20:291
13304995017,6cyclictest25-21ksoftirqd/108:56:441
2847191490,4ptp4l0-21swapper/311:03:243
2847191490,4ptp4l0-21swapper/211:59:072
2847191490,4ptp4l0-21swapper/209:54:072
2847191490,4ptp4l0-21swapper/010:16:410
2847191490,4ptp4l0-21swapper/007:59:050
13305994912,5cyclictest33-21ksoftirqd/207:55:222
1330499494,7cyclictest25-21ksoftirqd/111:20:251
13304994927,7cyclictest25-21ksoftirqd/110:15:021
13304994923,10cyclictest25-21ksoftirqd/110:30:141
13304994920,4cyclictest25-21ksoftirqd/109:15:261
13304994915,3cyclictest25-21ksoftirqd/111:40:231
2847191480,4ptp4l0-21swapper/207:17:512
2847191480,4ptp4l0-21swapper/109:47:201
2847191480,3ptp4l0-21swapper/309:22:323
2847191480,3ptp4l0-21swapper/111:25:251
2847191480,3ptp4l0-21swapper/007:27:230
2847191480,10ptp4l0-21swapper/007:46:070
1330599485,4cyclictest33-21ksoftirqd/210:00:252
13305994820,3cyclictest33-21ksoftirqd/211:30:222
13305994819,4cyclictest33-21ksoftirqd/212:00:472
13305994817,9cyclictest33-21ksoftirqd/209:43:262
13304994828,4cyclictest25-21ksoftirqd/111:30:141
13304994818,7cyclictest25-21ksoftirqd/108:00:271
1330399484,7cyclictest26968-21kworker/0:207:43:560
2847191470,4ptp4l0-21swapper/307:12:223
2847191470,3ptp4l0-21swapper/207:11:402
2847191470,3ptp4l0-21swapper/010:35:210
2847191470,3ptp4l0-21swapper/008:55:390
2847191470,12ptp4l0-21swapper/012:25:580
13306994710,5cyclictest41-21ksoftirqd/308:49:593
13305994718,9cyclictest33-21ksoftirqd/209:18:402
13305994714,4cyclictest33-21ksoftirqd/212:38:552
1330499475,7cyclictest25-21ksoftirqd/110:20:201
1330499475,2cyclictest25-21ksoftirqd/112:35:011
1330499473,6cyclictest25-21ksoftirqd/107:10:181
1330499471,7cyclictest25-21ksoftirqd/109:35:301
1330499471,6cyclictest25-21ksoftirqd/107:40:171
13304994713,8cyclictest25-21ksoftirqd/112:10:001
2847191460,5ptp4l0-21swapper/307:07:103
2847191460,4ptp4l0-21swapper/009:26:360
2847191460,4ptp4l0-21swapper/008:21:450
2847191460,3ptp4l0-21swapper/208:41:212
13305994627,4cyclictest33-21ksoftirqd/208:28:542
13305994623,12cyclictest33-21ksoftirqd/209:33:202
13305994617,5cyclictest33-21ksoftirqd/212:19:232
13305994613,8cyclictest33-21ksoftirqd/212:28:312
1330499467,3cyclictest25-21ksoftirqd/107:30:161
1330499466,6cyclictest25-21ksoftirqd/109:55:311
1330499462,9cyclictest25-21ksoftirqd/110:35:181
1330399465,3cyclictest9-21ksoftirqd/007:32:370
2847191450,4ptp4l0-21swapper/108:27:101
2847191450,3ptp4l0-21swapper/211:36:552
2847191450,3ptp4l0-21swapper/009:50:150
2847191450,13ptp4l0-21swapper/007:15:080
13306994516,4cyclictest41-21ksoftirqd/309:35:323
13306994511,8cyclictest41-21ksoftirqd/310:46:293
13305994524,10cyclictest33-21ksoftirqd/208:33:382
13305994522,12cyclictest33-21ksoftirqd/209:01:462
13305994513,4cyclictest33-21ksoftirqd/209:50:002
1330499454,3cyclictest121rcu_preempt12:00:161
1330499451,7cyclictest121rcu_preempt09:20:191
13303994532,4cyclictest9-21ksoftirqd/011:00:010
13303994532,4cyclictest9-21ksoftirqd/011:00:010
13303994516,4cyclictest9-21ksoftirqd/012:35:150
2847191440,5ptp4l0-21swapper/211:45:152
2847191440,4ptp4l0-21swapper/011:57:520
2847191440,3ptp4l0-21swapper/309:07:573
1330599449,4cyclictest33-21ksoftirqd/210:10:002
1330599445,3cyclictest121rcu_preempt10:50:002
13305994411,9cyclictest33-21ksoftirqd/208:45:232
13305994410,9cyclictest33-21ksoftirqd/210:39:542
13305994410,4cyclictest33-21ksoftirqd/207:29:262
13304994431,3cyclictest25-21ksoftirqd/111:15:301
1330499442,2cyclictest121rcu_preempt08:35:141
1330399445,3cyclictest30251-21cut11:15:000
1330399440,4cyclictest18569-21tune2fs08:30:160
2847191430,4ptp4l0-21swapper/008:36:390
2847191430,3ptp4l0-21swapper/211:05:012
13306994328,7cyclictest41-21ksoftirqd/309:48:583
13306994312,6cyclictest41-21ksoftirqd/308:07:263
13305994323,11cyclictest33-21ksoftirqd/207:50:012
1330499431,2cyclictest121rcu_preempt12:10:161
1330399435,9cyclictest13500-21kworker/0:109:42:030
13303994328,3cyclictest9-21ksoftirqd/009:05:010
13303994323,7cyclictest9-21ksoftirqd/011:35:250
1330399430,10cyclictest14581-21awk11:50:000
2847191420,5ptp4l0-21swapper/307:30:233
2847191420,4ptp4l0-21swapper/311:55:373
2847191420,4ptp4l0-21swapper/209:14:402
2847191420,4ptp4l0-21swapper/010:29:350
2847191420,4ptp4l0-21swapper/010:21:430
2847191420,4ptp4l0-21swapper/009:23:470
2847191420,4ptp4l0-21swapper/008:29:210
2847191420,4ptp4l0-21swapper/008:14:130
13306994229,3cyclictest41-21ksoftirqd/310:15:013
1330599423,4cyclictest33-21ksoftirqd/208:00:272
13304994228,4cyclictest25-21ksoftirqd/112:30:211
13304994210,6cyclictest25-21ksoftirqd/111:46:011
13303994222,8cyclictest9-21ksoftirqd/008:47:000
1330399420,8cyclictest27052-21systemctl07:39:590
2847191410,7ptp4l0-21swapper/007:50:540
2847191410,5ptp4l0-21swapper/312:20:193
2847191410,5ptp4l0-21swapper/311:35:213
2847191410,5ptp4l0-21swapper/308:40:153
2847191410,3ptp4l3907-21ls11:25:230
2847191410,3ptp4l0-21swapper/210:56:402
2847191410,3ptp4l0-21swapper/210:56:392
1330699417,3cyclictest41-21ksoftirqd/309:00:143
1330699414,4cyclictest41-21ksoftirqd/310:35:293
1330699414,3cyclictest41-21ksoftirqd/311:55:003
1330699413,8cyclictest41-21ksoftirqd/310:01:133
13306994126,6cyclictest41-21ksoftirqd/310:25:473
1330599415,3cyclictest33-21ksoftirqd/208:05:192
13305994120,4cyclictest33-21ksoftirqd/208:50:282
1330599411,9cyclictest33-21ksoftirqd/207:45:182
13305994118,12cyclictest33-21ksoftirqd/210:12:582
13305994117,13cyclictest33-21ksoftirqd/209:27:382
13305994117,12cyclictest33-21ksoftirqd/207:41:142
13305994112,9cyclictest33-21ksoftirqd/211:10:152
2847191400,5ptp4l0-21swapper/012:15:170
2847191400,5ptp4l0-21swapper/010:45:150
2847191400,4ptp4l24977-21apt-get07:35:162
2847191400,4ptp4l21278-21hddtemp_smartct09:45:170
2847191400,4ptp4l15646-21apt-get07:15:133
2847191400,4ptp4l0-21swapper/312:06:173
2847191400,4ptp4l0-21swapper/312:04:363
2847191400,4ptp4l0-21swapper/310:40:593
2847191400,4ptp4l0-21swapper/011:30:360
2847191400,4ptp4l0-21swapper/010:05:170
2847191400,4ptp4l0-21swapper/009:38:120
2847191400,3ptp4l28755-21meminfo10:00:210
2847191400,3ptp4l24461-21/usr/sbin/munin11:00:210
2847191400,3ptp4l2379-21apt-get10:15:163
2847191400,3ptp4l20345-21irqstats12:00:220
1330699405,2cyclictest121rcu_preempt08:55:243
13306994027,3cyclictest41-21ksoftirqd/307:20:223
13306994026,6cyclictest41-21ksoftirqd/310:20:273
1330699401,7cyclictest121rcu_preempt07:28:423
1330599408,5cyclictest33-21ksoftirqd/207:22:322
1330599404,3cyclictest121rcu_preempt10:34:262
13305994019,10cyclictest33-21ksoftirqd/210:23:172
13305994017,11cyclictest33-21ksoftirqd/208:11:112
13305994013,5cyclictest33-21ksoftirqd/209:06:442
1330599400,3cyclictest121rcu_preempt11:55:002
2847191390,4ptp4l0-21swapper/311:20:373
2847191390,4ptp4l0-21swapper/311:17:393
2847191390,4ptp4l0-21swapper/311:09:313
2847191390,4ptp4l0-21swapper/309:19:513
2847191390,4ptp4l0-21swapper/308:20:173
2847191390,4ptp4l0-21swapper/308:16:323
2847191390,4ptp4l0-21swapper/210:50:182
2847191390,4ptp4l0-21swapper/210:50:182
2847191390,4ptp4l0-21swapper/210:43:362
2847191390,4ptp4l0-21swapper/007:11:030
2847191390,3ptp4l14145-21df_inode09:30:150
1330699398,4cyclictest41-21ksoftirqd/307:55:253
13306993928,3cyclictest41-21ksoftirqd/308:00:123
13305993916,11cyclictest33-21ksoftirqd/207:34:482
13305993915,10cyclictest33-21ksoftirqd/212:34:572
2847191380,4ptp4l0-21swapper/311:14:043
2847191380,4ptp4l0-21swapper/310:34:213
2847191380,4ptp4l0-21swapper/309:40:303
2847191380,4ptp4l0-21swapper/309:34:443
2847191380,4ptp4l0-21swapper/309:28:183
2847191380,4ptp4l0-21swapper/309:10:243
2847191380,4ptp4l0-21swapper/308:31:453
2847191380,4ptp4l0-21swapper/307:42:303
2847191380,4ptp4l0-21swapper/307:35:293
2847191380,4ptp4l0-21swapper/209:57:592
2847191380,4ptp4l0-21swapper/011:50:310
2847191380,4ptp4l0-21swapper/010:50:140
2847191380,4ptp4l0-21swapper/010:50:130
2847191380,4ptp4l0-21swapper/010:42:280
2847191380,4ptp4l0-21swapper/009:55:030
2847191380,4ptp4l0-21swapper/008:41:290
13306993826,3cyclictest41-21ksoftirqd/308:50:163
13306993825,3cyclictest41-21ksoftirqd/307:53:103
1330699382,3cyclictest0-21swapper/312:35:013
13306993823,7cyclictest41-21ksoftirqd/311:30:023
13306993823,3cyclictest41-21ksoftirqd/312:18:423
13306993821,8cyclictest41-21ksoftirqd/309:50:153
13306993821,7cyclictest41-21ksoftirqd/309:55:283
1330599381,10cyclictest33-21ksoftirqd/208:20:262
2847191370,3ptp4l0-21swapper/310:06:223
2847191370,3ptp4l0-21swapper/308:14:223
2847191370,3ptp4l0-21swapper/307:49:183
1330699374,2cyclictest0-21swapper/312:35:273
2847191360,3ptp4l0-21swapper/312:12:503
2847191360,3ptp4l0-21swapper/311:28:033
13306993621,7cyclictest41-21ksoftirqd/312:25:233
119212243,13sleep012044-21/usr/sbin/munin07:05:210
115222172,9sleep111704-21cut07:05:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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