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2026-07-03 - 00:01
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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 Jul 02, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1781421330,3sleep2943699cyclictest09:45:242
145382730,5sleep10-21swapper/109:40:141
251212720,4sleep3401ktimersoftd/310:00:253
134491660,4ptp4l0-21swapper/109:53:381
134491650,3ptp4l0-21swapper/011:00:010
9435996435,4cyclictest25-21ksoftirqd/109:20:231
134491640,24ptp4l10724-21irqrtprio10:40:192
9435996328,4cyclictest25-21ksoftirqd/112:20:221
134491630,4ptp4l0-21swapper/311:05:013
9437996125,4cyclictest41-21ksoftirqd/308:17:263
9435996133,7cyclictest25-21ksoftirqd/109:10:001
9435996128,9cyclictest25-21ksoftirqd/112:00:141
9435996126,7cyclictest25-21ksoftirqd/111:59:591
9437996029,4cyclictest41-21ksoftirqd/310:12:403
9435996030,6cyclictest25-21ksoftirqd/111:35:291
9435996024,7cyclictest25-21ksoftirqd/110:00:001
9435995929,3cyclictest25-21ksoftirqd/111:25:011
9435995927,3cyclictest25-21ksoftirqd/109:50:011
9435995920,7cyclictest25-21ksoftirqd/107:15:161
9437995827,4cyclictest41-21ksoftirqd/312:23:183
9435995827,7cyclictest25-21ksoftirqd/107:15:001
134491580,4ptp4l0-21swapper/108:03:581
134491580,4ptp4l0-21swapper/108:03:581
134491580,3ptp4l0-21swapper/110:55:231
134491580,12ptp4l8769-21users07:05:261
9437995727,4cyclictest41-21ksoftirqd/307:35:143
9437995724,4cyclictest41-21ksoftirqd/308:28:493
9435995729,7cyclictest25-21ksoftirqd/109:25:261
9435995728,4cyclictest25-21ksoftirqd/110:53:291
9435995728,4cyclictest25-21ksoftirqd/110:53:291
9435995727,6cyclictest25-21ksoftirqd/111:10:221
9435995726,4cyclictest25-21ksoftirqd/110:30:001
9435995724,6cyclictest25-21ksoftirqd/111:05:161
9435995724,3cyclictest25-21ksoftirqd/108:33:541
134491570,3ptp4l0-21swapper/210:25:232
9435995629,3cyclictest25-21ksoftirqd/112:18:161
9435995627,7cyclictest25-21ksoftirqd/108:15:281
9435995627,3cyclictest25-21ksoftirqd/112:28:421
9435995623,6cyclictest25-21ksoftirqd/112:35:191
134491560,4ptp4l0-21swapper/212:01:322
9437995523,4cyclictest41-21ksoftirqd/309:03:163
9437995523,4cyclictest41-21ksoftirqd/309:03:163
9437995522,8cyclictest41-21ksoftirqd/307:32:533
9437995522,4cyclictest41-21ksoftirqd/308:03:263
9437995522,4cyclictest41-21ksoftirqd/308:03:263
9437995520,7cyclictest41-21ksoftirqd/311:16:133
9437995520,4cyclictest41-21ksoftirqd/312:03:003
9437995520,4cyclictest41-21ksoftirqd/308:51:013
943599556,4cyclictest25-21ksoftirqd/111:55:001
9435995527,7cyclictest25-21ksoftirqd/108:13:511
9435995521,8cyclictest25-21ksoftirqd/107:50:191
9435995521,7cyclictest25-21ksoftirqd/111:05:001
9435995521,7cyclictest25-21ksoftirqd/109:00:261
9435995521,7cyclictest25-21ksoftirqd/109:00:261
9435995521,4cyclictest25-21ksoftirqd/108:05:121
9435995517,4cyclictest25-21ksoftirqd/110:15:161
134491550,3ptp4l0-21swapper/308:40:263
134491550,3ptp4l0-21swapper/010:40:010
9437995425,7cyclictest41-21ksoftirqd/310:34:123
9437995423,3cyclictest41-21ksoftirqd/310:50:233
9437995423,3cyclictest41-21ksoftirqd/310:50:233
9435995430,7cyclictest25-21ksoftirqd/110:40:221
9435995430,3cyclictest25-21ksoftirqd/108:28:041
9435995422,3cyclictest25-21ksoftirqd/107:35:141
9435995421,7cyclictest25-21ksoftirqd/109:00:001
9435995421,6cyclictest25-21ksoftirqd/110:35:191
9435995420,6cyclictest25-21ksoftirqd/111:40:261
9435995419,8cyclictest25-21ksoftirqd/111:45:181
134491540,3ptp4l0-21swapper/212:07:112
9437995323,5cyclictest41-21ksoftirqd/309:42:593
9437995322,5cyclictest41-21ksoftirqd/310:19:503
9437995322,4cyclictest41-21ksoftirqd/311:47:163
9435995326,3cyclictest25-21ksoftirqd/111:18:461
9435995324,6cyclictest25-21ksoftirqd/110:45:011
9435995324,3cyclictest25-21ksoftirqd/109:34:311
9435995322,9cyclictest25-21ksoftirqd/107:45:191
9435995320,4cyclictest25-21ksoftirqd/109:15:531
9435995320,3cyclictest25-21ksoftirqd/112:30:231
9435995318,7cyclictest25-21ksoftirqd/110:03:021
134491530,12ptp4l0-21swapper/011:58:340
9437995229,5cyclictest41-21ksoftirqd/307:21:463
9437995222,3cyclictest41-21ksoftirqd/311:36:043
9435995226,6cyclictest25-21ksoftirqd/109:10:131
9435995226,3cyclictest25-21ksoftirqd/108:48:071
9435995220,4cyclictest25-21ksoftirqd/112:10:161
9435995219,7cyclictest25-21ksoftirqd/111:30:191
9435995217,7cyclictest25-21ksoftirqd/110:25:001
9435995215,4cyclictest25-21ksoftirqd/110:05:261
134491520,4ptp4l0-21swapper/212:30:162
9437995122,8cyclictest41-21ksoftirqd/310:25:233
9437995121,3cyclictest41-21ksoftirqd/311:55:263
9437995120,6cyclictest41-21ksoftirqd/309:10:223
9437995119,8cyclictest41-21ksoftirqd/312:10:223
9435995119,7cyclictest25-21ksoftirqd/108:35:141
9435995118,6cyclictest25-21ksoftirqd/107:40:151
9435995118,4cyclictest25-21ksoftirqd/110:10:161
134491510,4ptp4l0-21swapper/211:43:512
134491510,4ptp4l0-21swapper/211:15:492
134491510,4ptp4l0-21swapper/209:42:102
943799502,4cyclictest0-21swapper/308:58:473
9437995020,4cyclictest41-21ksoftirqd/312:09:263
9437995020,3cyclictest41-21ksoftirqd/310:21:513
9437995020,3cyclictest41-21ksoftirqd/308:35:173
9437995017,3cyclictest41-21ksoftirqd/311:11:393
943599505,2cyclictest25-21ksoftirqd/108:55:011
9435995027,6cyclictest25-21ksoftirqd/109:35:201
9435995021,7cyclictest25-21ksoftirqd/108:20:151
9435995020,8cyclictest25-21ksoftirqd/111:25:141
943599501,3cyclictest25-21ksoftirqd/107:30:001
134491500,5ptp4l0-21swapper/309:15:123
134491500,4ptp4l0-21swapper/312:17:153
134491500,4ptp4l0-21swapper/211:34:552
134491500,4ptp4l0-21swapper/210:03:182
134491500,4ptp4l0-21swapper/209:00:242
134491500,4ptp4l0-21swapper/209:00:242
134491500,4ptp4l0-21swapper/208:16:582
134491500,3ptp4l0-21swapper/208:07:492
9437994921,6cyclictest41-21ksoftirqd/309:55:253
9437994920,3cyclictest41-21ksoftirqd/309:25:383
9437994918,8cyclictest41-21ksoftirqd/308:10:193
9437994913,6cyclictest41-21ksoftirqd/307:25:583
9435994925,4cyclictest25-21ksoftirqd/108:43:131
9435994921,3cyclictest25-21ksoftirqd/107:21:531
134491490,4ptp4l0-21swapper/211:55:322
134491490,3ptp4l0-21swapper/207:19:032
9437994822,7cyclictest41-21ksoftirqd/309:05:203
9437994818,11cyclictest41-21ksoftirqd/307:50:203
134491480,5ptp4l0-21swapper/007:08:210
134491480,4ptp4l0-21swapper/310:07:433
134491480,3ptp4l0-21swapper/212:38:032
134491480,11ptp4l0-21swapper/207:22:542
943799472,4cyclictest0-21swapper/309:46:213
9437994722,6cyclictest41-21ksoftirqd/311:30:053
9437994716,3cyclictest41-21ksoftirqd/308:30:273
9437994714,6cyclictest41-21ksoftirqd/311:20:203
943599473,2cyclictest25-21ksoftirqd/112:05:211
9435994724,3cyclictest25-21ksoftirqd/110:31:241
9435994723,3cyclictest25-21ksoftirqd/107:34:031
134491470,4ptp4l0-21swapper/209:58:522
134491470,4ptp4l0-21swapper/208:35:362
134491470,2ptp4l1301-21snmpd11:13:152
943799467,8cyclictest41-21ksoftirqd/308:46:153
943799461,2cyclictest121rcu_preempt10:35:193
9435994624,3cyclictest25-21ksoftirqd/107:57:191
134491460,3ptp4l0-21swapper/209:22:322
134491460,12ptp4l0-21swapper/211:45:222
9437994542,2cyclictest77650irq/143-enp4s0-07:49:353
943799453,2cyclictest121rcu_preempt10:56:093
943799453,2cyclictest121rcu_preempt10:40:283
9437994529,5cyclictest41-21ksoftirqd/310:49:233
9437994518,3cyclictest41-21ksoftirqd/307:19:133
9437994517,6cyclictest41-21ksoftirqd/307:10:223
9437994515,6cyclictest41-21ksoftirqd/312:25:153
9437994514,3cyclictest41-21ksoftirqd/307:55:123
9437994512,9cyclictest41-21ksoftirqd/311:25:133
134491450,9ptp4l0-21swapper/211:22:132
134491450,4ptp4l1301-21snmpd12:10:042
134491450,4ptp4l0-21swapper/207:50:472
9437994438,3cyclictest41-21ksoftirqd/307:45:003
9437994436,4cyclictest41-21ksoftirqd/309:35:133
943799442,3cyclictest121rcu_preempt11:52:373
943799441,2cyclictest121rcu_preempt09:30:143
9437994411,3cyclictest41-21ksoftirqd/312:30:123
134691440,12getstats0-21swapper/009:35:180
134491440,9ptp4l0-21swapper/208:24:192
134491440,7ptp4l0-21swapper/007:36:230
134491440,5ptp4l0-21swapper/012:15:090
134491440,4ptp4l23042-21/usr/sbin/munin08:45:290
134491440,4ptp4l20587-21ls11:00:242
134491440,3ptp4l0-21swapper/208:55:152
134491440,2ptp4l0-21swapper/009:32:560
134691430,11getstats0-21swapper/010:11:190
134691430,11getstats0-21swapper/007:41:090
134691430,10getstats0-21swapper/011:54:330
134491430,9ptp4l26621-21sed10:05:200
134491430,9ptp4l0-21swapper/208:27:572
134491430,8ptp4l0-21swapper/210:05:322
134491430,5ptp4l31352-21ntp_states07:55:222
134491430,4ptp4l30528-21fschecks_count07:55:140
134491430,4ptp4l2318-21gnome-shell10:31:592
134491430,4ptp4l19561-21iostat_ios09:50:160
134491430,4ptp4l11762-21apt-get07:15:110
134491430,4ptp4l0-21swapper/008:40:070
134491430,3ptp4l0-21swapper/207:14:112
134491430,10ptp4l0-21swapper/210:10:002
943799429,9cyclictest41-21ksoftirqd/312:39:053
943799428,7cyclictest41-21ksoftirqd/308:05:183
9437994236,3cyclictest41-21ksoftirqd/309:55:003
9437994234,6cyclictest41-21ksoftirqd/311:05:143
9437994232,3cyclictest41-21ksoftirqd/309:22:533
9437994231,3cyclictest41-21ksoftirqd/311:44:073
134691420,11getstats0-21swapper/012:28:580
134691420,11getstats0-21swapper/012:07:160
134691420,10getstats0-21swapper/012:10:330
134691420,10getstats0-21swapper/010:15:010
134691420,10getstats0-21swapper/008:07:020
134691420,10getstats0-21swapper/007:30:000
134491420,6ptp4l0-21swapper/209:25:122
134491420,5ptp4l0-21swapper/212:15:592
134491420,4ptp4l8205-21iostat_ios10:35:192
134491420,4ptp4l5533-21diskstats08:10:120
134491420,4ptp4l3076-21df09:15:142
134491420,4ptp4l23908-21df_inode10:00:120
134491420,4ptp4l0-21swapper/208:50:122
134491420,4ptp4l0-21swapper/208:30:012
134491420,4ptp4l0-21swapper/011:30:150
134491420,4ptp4l0-21swapper/008:22:470
134491420,3ptp4l17945-21ls07:25:280
134491420,3ptp4l16741-21apt-get08:35:120
9437994136,3cyclictest41-21ksoftirqd/308:20:153
134691410,10getstats0-21swapper/011:16:350
134491410,8ptp4l0-21swapper/211:36:162
134491410,8ptp4l0-21swapper/210:57:552
134491410,8ptp4l0-21swapper/209:52:282
134491410,5ptp4l0-21swapper/011:37:140
134491410,4ptp4l5390-21df09:20:120
134491410,4ptp4l30049-21users11:20:280
134491410,4ptp4l24883-21memory12:20:200
134491410,4ptp4l22579-21ntp_states11:05:220
134491410,4ptp4l0-21swapper/009:12:170
134491410,4ptp4l0-21swapper/009:01:260
134491410,4ptp4l0-21swapper/009:01:260
134491410,3ptp4l5224-21apt-get08:10:092
134491400,5ptp4l0-21swapper/307:09:353
134491400,5ptp4l0-21swapper/210:20:122
134491400,5ptp4l0-21swapper/207:42:122
134491400,5ptp4l0-21swapper/011:45:240
134491400,4ptp4l9765-21df_inode07:10:130
134491400,4ptp4l0-21swapper/211:30:012
134491400,4ptp4l0-21swapper/209:33:512
134491400,4ptp4l0-21swapper/208:45:222
134491400,4ptp4l0-21swapper/208:43:462
134491400,4ptp4l0-21swapper/207:45:312
134491400,4ptp4l0-21swapper/207:35:092
134491400,4ptp4l0-21swapper/207:34:582
134491400,4ptp4l0-21swapper/207:08:582
134491400,4ptp4l0-21swapper/012:30:590
134491400,4ptp4l0-21swapper/011:00:210
134491400,4ptp4l0-21swapper/010:54:550
134491400,4ptp4l0-21swapper/010:54:550
134491400,4ptp4l0-21swapper/010:36:180
134491400,4ptp4l0-21swapper/010:31:160
134491400,4ptp4l0-21swapper/009:46:180
134491400,4ptp4l0-21swapper/009:40:590
134491400,4ptp4l0-21swapper/009:25:400
134491400,4ptp4l0-21swapper/009:05:130
134491400,4ptp4l0-21swapper/008:50:380
134491400,4ptp4l0-21swapper/008:27:180
134491400,4ptp4l0-21swapper/008:15:100
134491400,4ptp4l0-21swapper/008:02:120
134491400,4ptp4l0-21swapper/008:02:120
134491400,4ptp4l0-21swapper/007:45:170
134491400,3ptp4l5506-21df11:40:130
134491400,3ptp4l31990-21ntp_states12:35:240
134491400,3ptp4l16379-21apt-get07:25:122
134491400,3ptp4l14443-21apt-get08:30:120
134491400,3ptp4l13207-21memory10:45:210
134491400,3ptp4l0-21swapper/209:07:252
134491390,4ptp4l0-21swapper/212:25:502
134491390,4ptp4l0-21swapper/211:50:222
134491390,4ptp4l0-21swapper/211:06:072
134491390,4ptp4l0-21swapper/210:53:252
134491390,4ptp4l0-21swapper/210:53:252
134491390,4ptp4l0-21swapper/210:46:022
134491390,4ptp4l0-21swapper/209:13:042
134491390,4ptp4l0-21swapper/208:00:202
134491390,4ptp4l0-21swapper/208:00:202
134491390,4ptp4l0-21swapper/011:29:050
134491390,4ptp4l0-21swapper/010:22:170
134491390,4ptp4l0-21swapper/009:56:200
134491390,4ptp4l0-21swapper/009:18:560
134491390,4ptp4l0-21swapper/008:57:400
134491390,3ptp4l3348-21diskstats10:25:150
134491390,3ptp4l25264-21ls11:10:280
134491390,3ptp4l14510-21apt-get12:00:120
134491390,3ptp4l0-21swapper/210:15:102
134491390,3ptp4l0-21swapper/209:38:102
134491390,3ptp4l0-21swapper/007:50:040
134491380,3ptp4l0-21swapper/007:21:560
134491370,3ptp4l0-21swapper/212:20:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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