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2026-06-11 - 23:18
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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 Thu Jun 11, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1443621300,3sleep314430-21turbostat07:40:003
685997416,55cyclictest11895-21seq07:32:111
685996914,15cyclictest15283-21chrt12:19:311
685996912,17cyclictest1317-21runrttasks10:33:521
68599688,57cyclictest31474-21if_enp4s009:25:171
685996714,15cyclictest9793-21chrt09:48:161
68799668,15cyclictest31894-21iostat10:35:183
685996613,15cyclictest31239-21chrt11:41:411
685996612,12cyclictest884-21chrt10:39:101
685996611,16cyclictest1317-21runrttasks09:01:241
685996610,17cyclictest16708-21awk11:10:211
685996514,14cyclictest28206-21taskset08:06:541
685996514,14cyclictest16813-21chrt10:01:521
685996513,12cyclictest7808-21chrt10:52:341
685996512,16cyclictest1317-21runrttasks11:17:451
68599649,19cyclictest0-21swapper/111:28:501
685996415,16cyclictest2771-21chrt09:32:271
685996415,16cyclictest2771-21chrt09:32:271
685996413,10cyclictest1057-21taskset11:45:491
685996412,9cyclictest12837-21chrt12:12:371
685996412,17cyclictest17340-21seq12:21:111
685996412,16cyclictest1317-21runrttasks11:24:391
685996412,15cyclictest1317-21runrttasks09:09:221
68799639,11cyclictest9619-21taskset07:27:293
685996314,13cyclictest2777-21taskset08:21:461
685996314,12cyclictest16732-21seq08:53:031
685996313,47cyclictest6534-21df12:00:141
685996313,12cyclictest14635-21taskset09:58:431
685996313,10cyclictest14466-21chrt08:48:261
685996312,16cyclictest28917-21taskset11:36:381
685996312,11cyclictest7235-21chrt09:40:341
685996311,11cyclictest30742-21taskset08:14:561
685996311,10cyclictest1317-21runrttasks12:27:281
685996212,11cyclictest5019-21chrt09:36:521
685996211,9cyclictest1317-21runrttasks10:48:521
685996113,12cyclictest9969-21taskset08:39:561
685996112,11cyclictest25993-21chrt10:21:301
685996112,11cyclictest23630-21taskset10:15:561
685996013,12cyclictest18991-21chrt08:57:331
685996012,15cyclictest3543-21chrt11:52:151
685996012,12cyclictest25870-21chrt09:12:081
685996012,11cyclictest10693-21taskset12:09:371
685996011,11cyclictest12169-21chrt09:54:181
134491600,4ptp4l0-21swapper/107:50:241
134491600,3ptp4l0-21swapper/011:05:150
134491600,3ptp4l0-21swapper/011:05:150
68799598,11cyclictest12844-21chrt12:12:433
68599599,15cyclictest21452-21taskset10:12:291
685995914,8cyclictest19199-21chrt10:08:021
685995914,14cyclictest9585-21chrt07:27:021
685995913,10cyclictest8229-21chrt10:55:061
685995911,11cyclictest1317-21runrttasks07:44:471
134491590,4ptp4l0-21swapper/212:01:312
134491590,4ptp4l0-21swapper/009:10:150
685995812,11cyclictest4877-21chrt07:16:311
685995811,9cyclictest25965-21taskset08:02:371
134491580,4ptp4l0-21swapper/211:14:192
134491570,4ptp4l0-21swapper/012:25:250
68799567,19cyclictest0-21swapper/309:27:353
685995613,9cyclictest7320-21chrt07:23:091
182352560,5sleep268699cyclictest11:15:132
134491560,3ptp4l0-21swapper/107:12:591
68799557,18cyclictest0-21swapper/308:22:323
68799555,14cyclictest7265-21ls12:00:203
685995511,15cyclictest1317-21runrttasks08:30:521
134491540,5ptp4l0-21swapper/207:06:252
134491540,4ptp4l0-21swapper/207:41:262
134491540,4ptp4l0-21swapper/011:36:180
134491540,4ptp4l0-21swapper/011:24:460
134491540,4ptp4l0-21swapper/009:44:360
134491540,4ptp4l0-21swapper/008:19:050
134491540,4ptp4l0-21swapper/007:14:350
134491540,3ptp4l0-21swapper/207:10:072
134491540,24ptp4l9-21ksoftirqd/009:59:020
68799536,10cyclictest24823-21/usr/sbin/munin11:30:253
68799535,15cyclictest6667-21cut10:50:183
68799531,11cyclictest15182-21if_enp1s007:40:163
685995314,9cyclictest5226-21chrt08:28:441
134491530,4ptp4l0-21swapper/212:32:062
134491530,4ptp4l0-21swapper/011:41:360
134491530,3ptp4l0-21swapper/208:11:112
68799525,5cyclictest0-21swapper/312:28:073
68799525,14cyclictest2746-21ssh10:40:273
685995214,7cyclictest17196-21df07:45:131
134491520,5ptp4l0-21swapper/107:05:171
134491520,4ptp4l0-21swapper/211:48:152
134491520,4ptp4l0-21swapper/210:38:472
134491520,4ptp4l0-21swapper/210:11:122
134491520,4ptp4l0-21swapper/207:26:032
134491520,4ptp4l0-21swapper/008:02:000
134491520,3ptp4l0-21swapper/010:20:240
134491520,3ptp4l0-21swapper/008:08:370
68799517,8cyclictest23663-21ntp_states11:25:223
68799517,7cyclictest19042-21ntp_states11:15:223
68799516,13cyclictest16544-21meminfo12:20:193
68799514,14cyclictest28227-21/usr/sbin/munin11:35:233
134491510,4ptp4l0-21swapper/212:21:252
134491510,4ptp4l0-21swapper/211:58:492
134491510,4ptp4l0-21swapper/210:54:452
134491510,4ptp4l0-21swapper/011:56:090
134491510,4ptp4l0-21swapper/011:54:520
134491510,4ptp4l0-21swapper/010:19:150
134491510,3ptp4l0-21swapper/007:27:300
68799505,5cyclictest0-21swapper/309:09:533
68799505,12cyclictest0-21swapper/309:31:003
68799505,12cyclictest0-21swapper/309:31:003
685995014,10cyclictest3262-21chrt10:43:521
685995012,8cyclictest28554-21taskset10:29:561
685995010,10cyclictest0-21swapper/109:21:341
134491500,4ptp4l0-21swapper/208:37:582
134491500,4ptp4l0-21swapper/012:24:140
134491500,4ptp4l0-21swapper/010:03:070
68799497,7cyclictest30404-21memory11:40:183
68799496,5cyclictest0-21swapper/308:57:133
68799495,17cyclictest3992-21/usr/sbin/munin11:55:243
685994915,18cyclictest28045-21seq09:15:371
685994910,15cyclictest25939-21ntpq11:30:221
134491490,8ptp4l0-21swapper/010:33:280
134491490,4ptp4l0-21swapper/209:34:022
134491490,4ptp4l0-21swapper/209:34:022
134491490,4ptp4l0-21swapper/011:04:040
134491490,3ptp4l0-21swapper/009:08:280
134491490,3ptp4l0-21swapper/008:22:560
68799486,7cyclictest16988-21apt-get07:45:113
68799484,17cyclictest0-21swapper/308:25:243
68799484,10cyclictest0-21swapper/308:32:393
685994814,18cyclictest558-21taskset08:19:241
685994813,14cyclictest14132-21/usr/sbin/munin11:05:231
685994813,14cyclictest14132-21/usr/sbin/munin11:05:221
134491480,5ptp4l0-21swapper/007:06:200
134491480,4ptp4l0-21swapper/210:46:492
134491480,3ptp4l24686-21cat11:29:592
134491480,10ptp4l0-21swapper/207:30:122
68799477,8cyclictest29779-21ntp_states09:20:223
68799475,11cyclictest17080-21sort11:10:273
685994710,7cyclictest24158-21vmstat12:35:281
134491470,9ptp4l0-21swapper/008:33:500
134491470,3ptp4l0-21swapper/210:05:452
134491470,3ptp4l0-21swapper/010:49:350
68799467,7cyclictest22335-21hddtemp_smartct10:15:163
68799466,6cyclictest0-21swapper/309:37:143
68799466,15cyclictest10555-21/usr/sbin/munin11:00:183
68799466,11cyclictest0-21swapper/309:57:403
68799465,8cyclictest0-21swapper/310:01:313
68799465,11cyclictest0-21swapper/310:20:503
687994610,12cyclictest4958-21taskset07:17:333
685994615,18cyclictest23670-21seq07:57:541
685994615,17cyclictest22091-21seq12:33:141
685994611,4cyclictest134491ptp4l08:40:161
685994611,4cyclictest134491ptp4l08:40:161
685994610,7cyclictest11524-21memory11:00:221
134491460,4ptp4l0-21swapper/209:15:232
134491460,4ptp4l0-21swapper/012:33:320
134491460,3ptp4l0-21swapper/309:50:183
134491460,3ptp4l0-21swapper/010:50:470
68799458,12cyclictest18261-21memory10:05:203
68799457,8cyclictest10918-21irqstats07:30:183
68799456,5cyclictest0-21swapper/308:14:453
68799450,9cyclictest0-21swapper/309:45:253
68599456,18cyclictest0-21swapper/107:35:121
134491450,9ptp4l0-21swapper/210:34:552
134491450,10ptp4l4384-21fgrep07:15:252
68799445,15cyclictest26393-21/usr/sbin/munin08:05:253
134491440,9ptp4l0-21swapper/210:29:212
134491440,9ptp4l0-21swapper/209:13:492
134491440,4ptp4l0-21swapper/008:45:060
134491440,3ptp4l10252-21apt-get08:40:122
134491440,3ptp4l10252-21apt-get08:40:122
134491440,3ptp4l0-21swapper/009:35:170
68799434,6cyclictest0-21swapper/310:12:043
685994312,10cyclictest5922-21taskset11:58:201
134491430,9ptp4l0-21swapper/209:23:472
134491430,9ptp4l0-21swapper/208:17:362
134491430,9ptp4l0-21swapper/207:55:092
134491430,5ptp4l0-21swapper/208:20:132
134491430,3ptp4l7888-21apt-get09:45:102
134491430,3ptp4l0-21swapper/209:36:242
68799425,14cyclictest1038-21df_inode07:10:143
68799425,13cyclictest12615-21apt-get11:05:033
68799425,13cyclictest12615-21apt-get11:05:033
68799424,11cyclictest20396-21ls09:00:193
134491420,9ptp4l0-21swapper/211:32:322
134491420,8ptp4l0-21swapper/209:57:532
134491420,8ptp4l0-21swapper/208:34:562
134491420,5ptp4l0-21swapper/310:55:173
134491420,4ptp4l0-21swapper/209:41:462
134491420,4ptp4l0-21swapper/010:56:020
134491420,4ptp4l0-21swapper/009:25:200
68799417,12cyclictest24421-21diskstats08:00:153
68799414,5cyclictest0-21swapper/309:14:143
68799414,12cyclictest22485-21apt-get12:35:113
134491410,9ptp4l0-21swapper/208:50:532
134491410,8ptp4l0-21swapper/212:29:042
134491410,8ptp4l0-21swapper/209:07:192
134491410,8ptp4l0-21swapper/207:36:312
134491410,6ptp4l0-21swapper/010:35:130
134491410,5ptp4l0-21swapper/010:10:190
134491410,4ptp4l20065-21iostat07:50:190
134491410,4ptp4l19047-21apt-get07:50:023
134491410,4ptp4l10184-21apt-get09:50:112
134491410,4ptp4l0-21swapper/009:49:270
134491410,3ptp4l0-21swapper/010:44:040
134491410,3ptp4l0-21swapper/009:33:180
134491410,3ptp4l0-21swapper/009:33:180
134491410,3ptp4l0-21swapper/007:17:580
68799404,5cyclictest0-21swapper/311:22:573
68799402,6cyclictest27633-21ntp_states10:25:233
134491400,5ptp4l0-21swapper/307:06:383
134491400,5ptp4l0-21swapper/011:25:100
134491400,4ptp4l8891-21memory08:35:210
134491400,4ptp4l0-21swapper/307:20:233
134491400,4ptp4l0-21swapper/212:11:042
134491400,4ptp4l0-21swapper/211:40:182
134491400,4ptp4l0-21swapper/211:37:092
134491400,4ptp4l0-21swapper/210:55:502
134491400,4ptp4l0-21swapper/210:41:552
134491400,4ptp4l0-21swapper/209:02:312
134491400,4ptp4l0-21swapper/208:58:452
134491400,4ptp4l0-21swapper/208:28:572
134491400,4ptp4l0-21swapper/208:00:282
134491400,4ptp4l0-21swapper/207:24:112
134491400,4ptp4l0-21swapper/009:21:070
134491400,4ptp4l0-21swapper/008:10:100
134491400,4ptp4l0-21swapper/007:47:440
134491400,4ptp4l0-21swapper/007:44:000
134491400,3ptp4l8888-21df12:05:130
134491400,3ptp4l32051-21df_inode11:45:130
68799395,15cyclictest4171-21iostat10:45:163
68799394,13cyclictest8987-21diskstats12:05:143
134491390,5ptp4l0-21swapper/312:15:113
134491390,4ptp4l0-21swapper/311:52:043
134491390,4ptp4l0-21swapper/212:37:322
134491390,4ptp4l0-21swapper/212:07:352
134491390,4ptp4l0-21swapper/211:20:472
134491390,4ptp4l0-21swapper/211:05:492
134491390,4ptp4l0-21swapper/211:05:492
134491390,4ptp4l0-21swapper/210:03:412
134491390,4ptp4l0-21swapper/209:26:552
134491390,4ptp4l0-21swapper/208:45:532
134491390,4ptp4l0-21swapper/208:07:442
134491390,4ptp4l0-21swapper/207:49:152
134491390,4ptp4l0-21swapper/012:35:200
134491390,4ptp4l0-21swapper/012:15:200
134491390,4ptp4l0-21swapper/011:15:230
134491390,4ptp4l0-21swapper/010:26:370
134491390,4ptp4l0-21swapper/010:05:120
134491390,4ptp4l0-21swapper/009:53:320
134491390,4ptp4l0-21swapper/008:58:150
134491390,4ptp4l0-21swapper/008:51:140
134491390,4ptp4l0-21swapper/007:37:290
134491390,4ptp4l0-21swapper/007:32:190
134491390,4ptp4l0-21swapper/007:24:100
134491390,3ptp4l19760-21df_inode09:00:150
134491390,3ptp4l0-21swapper/309:41:233
134491390,3ptp4l0-21swapper/012:00:290
134491390,3ptp4l0-21swapper/009:17:190
134491390,3ptp4l0-21swapper/007:57:240
68799389,17cyclictest1152-21taskset11:47:043
134491380,5ptp4l0-21swapper/309:15:123
134491380,4ptp4l15981-21grep11:10:150
134491380,4ptp4l0-21swapper/212:15:492
134491380,4ptp4l0-21swapper/211:02:332
134491380,4ptp4l0-21swapper/210:21:322
134491380,4ptp4l0-21swapper/207:51:532
134491380,4ptp4l0-21swapper/012:10:300
134491380,4ptp4l0-21swapper/011:32:020
134491380,4ptp4l0-21swapper/008:40:400
134491380,4ptp4l0-21swapper/008:40:400
134491380,4ptp4l0-21swapper/008:26:060
134491380,3ptp4l0-21swapper/312:31:223
134491380,3ptp4l0-21swapper/308:54:453
134491380,3ptp4l0-21swapper/211:51:012
134491380,3ptp4l0-21swapper/210:15:082
68799374,5cyclictest0-21swapper/308:41:493
68799374,5cyclictest0-21swapper/308:41:493
134491370,4ptp4l0-21swapper/310:31:583
134491370,3ptp4l0-21swapper/308:15:503
134491370,3ptp4l0-21swapper/307:55:263
134491360,4ptp4l0-21swapper/308:36:353
134491360,3ptp4l0-21swapper/308:47:493
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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