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2026-04-03 - 01:09
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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 Apr 02, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195621420,3sleep0282199cyclictest12:05:270
2823997112,13cyclictest31976-21chrt10:51:042
282399705,62cyclictest0-21swapper/209:50:292
2823997013,11cyclictest22695-21chrt10:30:462
2823996913,11cyclictest20886-21chrt11:37:262
2823996612,11cyclictest17914-21chrt09:10:312
2823996612,11cyclictest17914-21chrt09:10:312
2823996611,12cyclictest17833-21chrt08:04:072
2823996611,12cyclictest17833-21chrt08:04:072
2823996611,11cyclictest13400-21ntpq07:45:172
282399649,53cyclictest0-21swapper/212:05:002
2823996312,10cyclictest1317-21runrttasks09:05:482
2823996312,10cyclictest1317-21runrttasks09:05:482
2823996310,19cyclictest26674-21ntpq10:40:212
134491630,4ptp4l0-21swapper/009:03:350
134491630,4ptp4l0-21swapper/009:03:350
2823996211,11cyclictest10059-21taskset12:25:132
134491620,17ptp4l0-21swapper/111:40:261
282399616,52cyclictest32592-21/usr/sbin/munin09:45:122
2823996111,47cyclictest0-21swapper/209:20:012
134491610,4ptp4l0-21swapper/309:10:433
134491610,4ptp4l0-21swapper/309:10:433
2823996015,10cyclictest29915-21chrt10:49:082
282399598,16cyclictest9457-21/usr/sbin/munin11:15:122
282399597,15cyclictest0-21swapper/208:15:252
2823995915,9cyclictest11449-21taskset10:09:042
134491590,4ptp4l0-21swapper/309:24:093
134491590,4ptp4l0-21swapper/308:50:213
282399585,51cyclictest0-21swapper/210:00:292
2823995815,39cyclictest7128-21fschecks_count08:50:152
134491580,4ptp4l0-21swapper/010:50:230
134491580,3ptp4l0-21swapper/307:14:033
134491580,3ptp4l0-21swapper/111:56:371
300542570,4sleep20-21swapper/208:30:162
282399579,16cyclictest6281-21cat11:05:262
282399578,11cyclictest0-21swapper/210:55:282
282399566,17cyclictest0-21swapper/212:05:152
2823995610,43cyclictest4862-21apt-get09:55:102
134491560,4ptp4l0-21swapper/310:30:093
134491560,4ptp4l0-21swapper/308:35:393
134491560,4ptp4l0-21swapper/008:18:580
134491560,3ptp4l15190-21ntp_states10:15:233
134491560,3ptp4l0-21swapper/312:30:103
134491560,3ptp4l0-21swapper/307:24:593
282399558,16cyclictest28353-21egrep11:55:142
282399557,6cyclictest14090-21apt-config11:25:012
282399553,50cyclictest0-21swapper/209:40:292
282399547,45cyclictest0-21swapper/210:10:292
2823995414,37cyclictest4907-21/usr/sbin/munin07:15:212
134491540,4ptp4l0-21swapper/309:50:523
134491540,4ptp4l0-21swapper/112:31:261
134491540,3ptp4l0-21swapper/012:35:210
2823995316,9cyclictest8458-21chrt07:29:382
2823995316,9cyclictest8458-21chrt07:29:382
2823995315,9cyclictest29300-21taskset08:27:572
134491530,4ptp4l0-21swapper/311:43:093
134491530,4ptp4l0-21swapper/307:29:133
134491530,4ptp4l0-21swapper/307:29:133
134491530,10ptp4l0-21swapper/308:09:463
131312530,5sleep30-21swapper/310:10:253
2823995215,16cyclictest22616-21/usr/sbin/munin11:40:242
2823995211,10cyclictest0-21swapper/208:22:002
134491520,5ptp4l0-21swapper/107:05:071
134491520,4ptp4l0-21swapper/311:07:273
134491520,4ptp4l0-21swapper/310:55:173
134491520,4ptp4l0-21swapper/309:26:583
134491520,3ptp4l0-21swapper/307:16:063
134491510,4ptp4l282199cyclictest10:23:180
134491510,4ptp4l0-21swapper/311:04:463
134491510,4ptp4l0-21swapper/310:49:523
134491510,4ptp4l0-21swapper/310:26:023
134491510,3ptp4l0-21swapper/311:36:273
134491510,12ptp4l0-21swapper/310:51:253
282399509,7cyclictest8135-21ls11:10:192
282399509,7cyclictest18361-21df08:05:092
282399508,7cyclictest25641-21apt-get09:30:112
282399508,7cyclictest19644-21ntp_states09:15:222
134491500,4ptp4l0-21swapper/310:40:363
134491500,4ptp4l0-21swapper/309:09:303
134491500,4ptp4l0-21swapper/309:09:303
134491500,4ptp4l0-21swapper/308:12:223
134491500,4ptp4l0-21swapper/307:45:153
282399497,8cyclictest17819-21ssh10:20:252
2823994911,36cyclictest0-21swapper/208:46:122
134491490,5ptp4l282199cyclictest07:24:500
134491490,4ptp4l0-21swapper/311:27:163
134491490,4ptp4l0-21swapper/310:08:503
134491490,3ptp4l0-21swapper/309:41:383
134491490,12ptp4l0-21swapper/111:25:521
134491480,5ptp4l0-21swapper/007:05:210
134491480,4ptp4l0-21swapper/307:42:543
134491480,4ptp4l0-21swapper/012:18:210
134491480,3ptp4l0-21swapper/308:04:493
134491480,3ptp4l0-21swapper/308:04:483
134491470,4ptp4l0-21swapper/310:02:013
134491470,4ptp4l0-21swapper/308:47:053
134491470,4ptp4l0-21swapper/308:24:183
282399469,7cyclictest9935-21iostat_ios07:35:132
282399468,6cyclictest29500-21ls09:35:262
282399466,7cyclictest19108-21perl10:25:152
2823994611,7cyclictest3472-21memory11:00:212
134491460,4ptp4l0-21swapper/010:07:290
134491460,3ptp4l0-21swapper/208:40:092
134491460,3ptp4l0-21swapper/107:15:311
134491450,4ptp4l0-21swapper/312:22:283
134491450,4ptp4l0-21swapper/309:38:563
134491450,4ptp4l0-21swapper/307:59:323
134491450,4ptp4l0-21swapper/007:15:470
134491450,3ptp4l0-21swapper/309:34:593
134491450,3ptp4l0-21swapper/012:00:130
134491440,9ptp4l0-21swapper/010:43:040
134491440,9ptp4l0-21swapper/010:39:530
134491440,5ptp4l0-21swapper/210:15:212
134491440,4ptp4l9098-21apt-get08:55:112
134491440,4ptp4l0-21swapper/309:56:093
134491440,3ptp4l0-21swapper/011:55:180
134491430,9ptp4l0-21swapper/312:12:533
134491430,9ptp4l0-21swapper/009:57:010
134491430,9ptp4l0-21swapper/009:41:230
134491430,4ptp4l5446-21ls08:45:190
134491430,4ptp4l0-21swapper/311:21:413
134491430,4ptp4l0-21swapper/308:30:293
134491430,4ptp4l0-21swapper/110:12:451
134491430,4ptp4l0-21swapper/108:43:151
134491430,4ptp4l0-21swapper/008:40:450
134491430,4ptp4l0-21swapper/008:00:540
134491430,4ptp4l0-21swapper/008:00:540
134491430,3ptp4l121rcu_preempt09:40:191
134491430,3ptp4l0-21swapper/311:49:193
134491430,3ptp4l0-21swapper/108:36:281
134491430,10ptp4l0-21swapper/308:27:123
282399429,9cyclictest0-21swapper/211:34:502
2823994211,29cyclictest0-21swapper/207:51:082
134491420,9ptp4l0-21swapper/010:33:220
134491420,8ptp4l9-21ksoftirqd/010:04:510
134491420,5ptp4l0-21swapper/007:55:070
134491420,4ptp4l2873-21apt-get12:10:090
134491420,4ptp4l0-21swapper/312:08:293
134491420,4ptp4l0-21swapper/309:49:293
134491420,4ptp4l0-21swapper/111:01:561
134491420,3ptp4l9-21ksoftirqd/008:13:220
134491420,3ptp4l32221-21apt-get08:35:112
134491420,3ptp4l2318-21gnome-shell11:54:592
134491420,3ptp4l16534-21apt-get11:30:123
282399418,10cyclictest1317-21runrttasks07:12:572
134491410,9ptp4l0-21swapper/309:16:583
134491410,5ptp4l0-21swapper/011:30:200
134491410,5ptp4l0-21swapper/011:25:150
134491410,5ptp4l0-21swapper/011:00:370
134491410,5ptp4l0-21swapper/010:25:130
134491410,5ptp4l0-21swapper/009:30:170
134491410,5ptp4l0-21swapper/009:05:170
134491410,5ptp4l0-21swapper/009:05:170
134491410,5ptp4l0-21swapper/007:10:010
134491410,4ptp4l8067-21memory11:10:193
134491410,4ptp4l6116-21meminfo12:15:172
134491410,4ptp4l323-21iostat08:35:170
134491410,4ptp4l16049-21users12:35:273
134491410,4ptp4l15427-21df07:55:092
134491410,4ptp4l0-21swapper/011:51:130
134491410,4ptp4l0-21swapper/010:49:390
134491410,4ptp4l0-21swapper/009:19:130
134491410,4ptp4l0-21swapper/007:25:240
134491410,4ptp4l0-21swapper/007:25:240
134491410,3ptp4l27940-21apt-get09:35:110
134491410,10ptp4l0-21swapper/311:52:333
2823994010,12cyclictest14285-21sed12:35:002
134491400,6ptp4l9-21ksoftirqd/007:35:080
134491400,5ptp4l7685-21cstates12:20:132
134491400,5ptp4l0-21swapper/207:41:332
134491400,5ptp4l0-21swapper/011:10:160
134491400,4ptp4l26486-21irqstats09:30:181
134491400,4ptp4l0-21swapper/312:28:483
134491400,4ptp4l0-21swapper/308:55:493
134491400,4ptp4l0-21swapper/212:35:172
134491400,4ptp4l0-21swapper/110:23:151
134491400,4ptp4l0-21swapper/012:27:050
134491400,4ptp4l0-21swapper/011:43:510
134491400,4ptp4l0-21swapper/011:08:230
134491400,4ptp4l0-21swapper/010:18:310
134491400,4ptp4l0-21swapper/009:25:190
134491400,4ptp4l0-21swapper/009:22:150
134491400,4ptp4l0-21swapper/008:06:090
134491400,4ptp4l0-21swapper/007:44:140
134491400,3ptp4l9363-21apt-get07:35:073
134491400,3ptp4l6387-21ls11:05:271
134491400,3ptp4l28180-21apache209:25:232
134491400,3ptp4l19087-21iostat09:15:171
134491400,3ptp4l12367-21memory09:00:203
134491400,3ptp4l12367-21memory09:00:203
134491400,3ptp4l1069-21memory10:55:200
134491400,10ptp4l0-21swapper/207:34:592
134491390,5ptp4l0-21swapper/009:10:180
134491390,5ptp4l0-21swapper/009:10:180
134491390,4ptp4l0-21swapper/312:15:223
134491390,4ptp4l0-21swapper/311:59:453
134491390,4ptp4l0-21swapper/310:36:333
134491390,4ptp4l0-21swapper/310:20:193
134491390,4ptp4l0-21swapper/308:42:283
134491390,4ptp4l0-21swapper/307:54:353
134491390,4ptp4l0-21swapper/212:10:092
134491390,4ptp4l0-21swapper/209:00:122
134491390,4ptp4l0-21swapper/209:00:122
134491390,4ptp4l0-21swapper/111:20:011
134491390,4ptp4l0-21swapper/109:35:111
134491390,4ptp4l0-21swapper/108:45:191
134491390,4ptp4l0-21swapper/108:17:461
134491390,4ptp4l0-21swapper/107:23:551
134491390,4ptp4l0-21swapper/012:31:590
134491390,4ptp4l0-21swapper/012:21:360
134491390,4ptp4l0-21swapper/011:46:000
134491390,4ptp4l0-21swapper/011:38:020
134491390,4ptp4l0-21swapper/011:22:210
134491390,4ptp4l0-21swapper/011:18:590
134491390,4ptp4l0-21swapper/010:10:220
134491390,4ptp4l0-21swapper/009:45:090
134491390,4ptp4l0-21swapper/008:55:160
134491390,4ptp4l0-21swapper/008:50:410
134491390,4ptp4l0-21swapper/008:25:230
134491390,4ptp4l0-21swapper/007:45:170
134491390,4ptp4l0-21swapper/007:30:220
134491390,3ptp4l9410-21apt-get11:15:123
134491390,3ptp4l3583-21ls09:50:200
134491390,3ptp4l31046-21hddtemp_smartct12:00:163
134491390,3ptp4l0-21swapper/211:45:512
134491390,3ptp4l0-21swapper/110:17:591
134491380,5ptp4l0-21swapper/112:21:131
134491380,4ptp4l23647-21tune2fs10:35:151
134491380,4ptp4l0-21swapper/308:15:083
134491380,4ptp4l0-21swapper/307:31:193
134491380,4ptp4l0-21swapper/211:20:132
134491380,4ptp4l0-21swapper/210:35:232
134491380,4ptp4l0-21swapper/208:10:162
134491380,4ptp4l0-21swapper/207:20:572
134491380,4ptp4l0-21swapper/112:25:041
134491380,4ptp4l0-21swapper/109:55:251
134491380,4ptp4l0-21swapper/109:48:121
134491380,4ptp4l0-21swapper/108:08:421
134491380,4ptp4l0-21swapper/107:55:281
134491380,4ptp4l0-21swapper/107:48:181
134491380,4ptp4l0-21swapper/107:41:401
134491380,4ptp4l0-21swapper/107:12:401
134491380,4ptp4l0-21swapper/008:30:190
134491380,4ptp4l0-21swapper/008:21:590
134491380,4ptp4l0-21swapper/007:50:470
134491380,3ptp4l7388-21df_abs11:10:131
134491380,3ptp4l25-21ksoftirqd/112:04:251
134491380,3ptp4l20954-21apt-config09:20:011
134491380,3ptp4l1488-21/usr/sbin/munin10:55:251
134491380,3ptp4l0-21swapper/112:35:361
134491380,3ptp4l0-21swapper/112:15:591
134491380,3ptp4l0-21swapper/112:10:011
134491380,3ptp4l0-21swapper/112:06:581
134491380,3ptp4l0-21swapper/111:46:471
134491380,3ptp4l0-21swapper/110:40:191
134491380,3ptp4l0-21swapper/109:00:031
134491380,3ptp4l0-21swapper/109:00:031
134491380,3ptp4l0-21swapper/108:55:231
134491370,4ptp4l0-21swapper/108:25:051
134491370,4ptp4l0-21swapper/108:12:581
134491370,4ptp4l0-21swapper/108:00:561
134491370,4ptp4l0-21swapper/108:00:561
134491370,4ptp4l0-21swapper/107:27:111
134491370,4ptp4l0-21swapper/107:27:111
134491370,3ptp4l0-21swapper/111:50:291
134491370,3ptp4l0-21swapper/111:32:481
134491370,3ptp4l0-21swapper/110:51:101
134491370,3ptp4l0-21swapper/110:47:331
134491370,3ptp4l0-21swapper/110:30:281
134491370,3ptp4l0-21swapper/110:05:541
134491370,3ptp4l0-21swapper/110:01:531
134491370,3ptp4l0-21swapper/109:52:141
134491370,3ptp4l0-21swapper/109:10:391
134491370,3ptp4l0-21swapper/109:10:391
134491370,3ptp4l0-21swapper/108:52:141
134491370,3ptp4l0-21swapper/107:52:261
134491370,3ptp4l0-21swapper/107:35:231
134491370,3ptp4l0-21swapper/107:31:131
134491360,3ptp4l0-21swapper/111:35:551
134491360,3ptp4l0-21swapper/109:27:431
134491360,3ptp4l0-21swapper/109:05:131
134491360,3ptp4l0-21swapper/109:05:131
134491360,3ptp4l0-21swapper/108:21:401
134491350,3ptp4l0-21swapper/108:31:591
134491320,3ptp4l0-21swapper/111:20:431
2822992924,3cyclictest25-21ksoftirqd/110:28:171
46198260,5rtkit-daemon0-21swapper/307:06:063
3472214,9sleep2357-21apt-get07:05:072
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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