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2026-05-27 - 00:07
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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 Tue May 26, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3141421500,5sleep02854499cyclictest09:35:130
2401721450,6sleep22854699cyclictest08:10:142
134491800,3ptp4l0-21swapper/010:19:480
28545996734,4cyclictest25-21ksoftirqd/107:20:001
28545996633,7cyclictest25-21ksoftirqd/110:55:171
28545996332,4cyclictest25-21ksoftirqd/110:05:001
28545996330,8cyclictest25-21ksoftirqd/111:00:161
28545996330,3cyclictest25-21ksoftirqd/110:55:001
28545996323,7cyclictest25-21ksoftirqd/108:15:011
134491630,4ptp4l19524-21diskstats09:10:150
28545996235,3cyclictest25-21ksoftirqd/108:55:181
28545996232,4cyclictest25-21ksoftirqd/108:45:161
28545996231,7cyclictest25-21ksoftirqd/108:50:181
28545996230,9cyclictest25-21ksoftirqd/109:10:131
28545996228,6cyclictest25-21ksoftirqd/108:40:161
232292620,5sleep00-21swapper/009:15:270
28545996129,7cyclictest25-21ksoftirqd/110:10:231
28545996127,9cyclictest25-21ksoftirqd/110:30:211
28545996127,7cyclictest25-21ksoftirqd/108:30:211
28545996119,7cyclictest25-21ksoftirqd/107:15:011
134491610,4ptp4l0-21swapper/011:10:150
28545996032,4cyclictest25-21ksoftirqd/110:07:391
28545996030,7cyclictest25-21ksoftirqd/108:00:291
28545996030,7cyclictest25-21ksoftirqd/108:00:291
28545996029,8cyclictest25-21ksoftirqd/108:35:271
28545996029,4cyclictest25-21ksoftirqd/108:08:251
28545996027,8cyclictest25-21ksoftirqd/109:50:141
28545996027,7cyclictest25-21ksoftirqd/110:20:241
28545996026,8cyclictest25-21ksoftirqd/110:30:001
28545996026,4cyclictest25-21ksoftirqd/111:25:191
28545995932,3cyclictest25-21ksoftirqd/111:45:431
28545995931,4cyclictest25-21ksoftirqd/109:48:571
28545995930,7cyclictest25-21ksoftirqd/109:00:161
28545995930,3cyclictest25-21ksoftirqd/109:36:331
28545995927,8cyclictest25-21ksoftirqd/110:40:151
28545995927,7cyclictest25-21ksoftirqd/110:45:221
28545995927,7cyclictest25-21ksoftirqd/108:15:131
28545995926,7cyclictest25-21ksoftirqd/112:35:261
134491590,4ptp4l0-21swapper/110:35:241
134491590,3ptp4l0-21swapper/012:20:250
134491590,11ptp4l27795-21runrttasks07:06:460
28545995830,4cyclictest25-21ksoftirqd/111:43:461
28545995830,4cyclictest25-21ksoftirqd/111:12:581
28545995829,4cyclictest25-21ksoftirqd/112:28:521
28545995829,4cyclictest25-21ksoftirqd/111:38:201
28545995829,3cyclictest25-21ksoftirqd/111:59:231
28545995826,9cyclictest25-21ksoftirqd/107:25:011
28545995824,7cyclictest25-21ksoftirqd/107:35:011
134491580,4ptp4l0-21swapper/209:23:492
28545995730,6cyclictest25-21ksoftirqd/111:15:161
28545995730,6cyclictest25-21ksoftirqd/111:15:161
28545995729,6cyclictest25-21ksoftirqd/109:30:281
28545995729,4cyclictest25-21ksoftirqd/112:07:371
28545995729,4cyclictest25-21ksoftirqd/109:17:471
28545995728,6cyclictest25-21ksoftirqd/107:25:221
28545995728,3cyclictest25-21ksoftirqd/109:22:491
28545995727,8cyclictest25-21ksoftirqd/108:20:161
28545995727,4cyclictest25-21ksoftirqd/107:41:081
28545995723,7cyclictest25-21ksoftirqd/108:25:251
28545995630,7cyclictest25-21ksoftirqd/111:05:381
28545995630,7cyclictest25-21ksoftirqd/109:59:191
28545995628,3cyclictest25-21ksoftirqd/111:20:211
28545995628,3cyclictest25-21ksoftirqd/110:16:361
28545995626,4cyclictest25-21ksoftirqd/107:45:051
28545995623,3cyclictest25-21ksoftirqd/107:50:481
134491560,4ptp4l0-21swapper/011:41:580
134491560,4ptp4l0-21swapper/011:39:180
28545995528,4cyclictest25-21ksoftirqd/112:21:371
28545995527,3cyclictest25-21ksoftirqd/112:10:051
28545995526,4cyclictest25-21ksoftirqd/109:44:281
134491550,5ptp4l0-21swapper/209:41:362
134491550,3ptp4l0-21swapper/012:00:140
28545995420,7cyclictest25-21ksoftirqd/109:05:151
134491540,5ptp4l0-21swapper/307:09:363
134491540,4ptp4l0-21swapper/011:04:160
134491540,4ptp4l0-21swapper/009:54:400
134491540,4ptp4l0-21swapper/008:52:130
134491540,3ptp4l0-21swapper/012:38:310
2854799533,48cyclictest0-21swapper/309:26:483
28545995326,3cyclictest25-21ksoftirqd/112:01:071
134491530,4ptp4l0-21swapper/011:07:000
134491530,4ptp4l0-21swapper/007:34:350
2854799527,43cyclictest0-21swapper/308:27:483
28546995212,5cyclictest33-21ksoftirqd/210:43:522
134491520,4ptp4l0-21swapper/207:10:182
134491520,4ptp4l0-21swapper/010:05:060
134491520,4ptp4l0-21swapper/008:35:050
134491520,2ptp4l0-21swapper/010:45:280
28545995123,8cyclictest25-21ksoftirqd/107:35:141
134491510,4ptp4l0-21swapper/012:16:340
134491510,4ptp4l0-21swapper/010:25:150
28545995017,7cyclictest25-21ksoftirqd/111:50:281
28545995015,4cyclictest25-21ksoftirqd/107:55:251
134491500,5ptp4l0-21swapper/207:09:422
134491500,4ptp4l0-21swapper/207:54:042
134491500,3ptp4l0-21swapper/007:25:180
28545994833,8cyclictest25-21ksoftirqd/112:30:241
134491480,4ptp4l0-21swapper/010:38:470
134491480,4ptp4l0-21swapper/008:09:300
134491480,3ptp4l0-21swapper/010:01:580
134491480,3ptp4l0-21swapper/008:04:200
134491480,3ptp4l0-21swapper/008:04:200
134491480,3ptp4l0-21swapper/007:43:460
2854699472,4cyclictest0-21swapper/207:40:172
28546994714,4cyclictest33-21ksoftirqd/212:26:542
2854599476,6cyclictest25-21ksoftirqd/109:29:551
2854599472,3cyclictest25-21ksoftirqd/111:30:131
134491470,3ptp4l0-21swapper/209:25:042
134491470,3ptp4l0-21swapper/008:18:280
2854699465,39cyclictest6190-21kworker/2:111:40:292
28546994635,2cyclictest33-21ksoftirqd/211:20:142
134491460,6ptp4l2318-21gnome-shell11:30:580
134491460,4ptp4l0-21swapper/011:28:040
134491460,4ptp4l0-21swapper/010:53:410
134491460,4ptp4l0-21swapper/008:48:030
134491460,4ptp4l0-21swapper/008:42:300
134491460,2ptp4l391rcuc/311:20:003
134491460,2ptp4l391rcuc/311:20:003
28546994535,8cyclictest33-21ksoftirqd/210:00:282
28546994525,10cyclictest33-21ksoftirqd/210:32:132
134491450,4ptp4l0-21swapper/209:05:482
134491450,3ptp4l0-21swapper/007:12:520
28546994435,5cyclictest33-21ksoftirqd/212:20:122
2854599440,6cyclictest8754-21sort12:15:161
134491440,9ptp4l0-21swapper/211:14:252
134491440,8ptp4l0-21swapper/210:46:442
134491440,3ptp4l28048-21ls10:35:282
28547994338,3cyclictest2908-21sh07:25:003
28546994330,3cyclictest33-21ksoftirqd/211:35:262
134491430,9ptp4l0-21swapper/209:12:042
134491430,5ptp4l0-21swapper/010:10:120
134491430,4ptp4l31559-21apt-get11:55:120
134491430,4ptp4l0-21swapper/310:55:173
134491430,4ptp4l0-21swapper/007:47:460
134491430,10ptp4l0-21swapper/310:02:043
28546994230,9cyclictest33-21ksoftirqd/212:05:292
28546994223,9cyclictest33-21ksoftirqd/208:55:532
134491420,9ptp4l0-21swapper/212:13:552
134491420,9ptp4l0-21swapper/210:52:552
134491420,6ptp4l2507-21grep07:20:280
134491420,5ptp4l4504-21needreboot09:45:200
134491420,5ptp4l0-21swapper/312:10:213
134491420,4ptp4l26826-21hddtemp_smartct09:25:160
134491420,4ptp4l25211-21ntp_states09:20:223
134491420,4ptp4l15781-21ntp_states07:50:233
134491420,4ptp4l15765-21hddtemp_smartct12:30:160
134491420,4ptp4l1037-21apt-get10:50:123
134491420,4ptp4l0-21swapper/212:15:242
134491420,4ptp4l0-21swapper/010:45:000
28546994136,3cyclictest33-21ksoftirqd/208:10:002
28546994135,3cyclictest33-21ksoftirqd/212:35:182
2854699413,3cyclictest121rcu_preempt09:30:262
134691410,9getstats0-21swapper/008:10:250
134691410,6getstats2854499cyclictest09:32:090
134491410,5ptp4l41-21ksoftirqd/308:45:153
134491410,4ptp4l8314-21iostat07:35:170
134491410,4ptp4l13809-21ntp_states10:05:232
134491410,4ptp4l0-21swapper/310:42:443
134491410,4ptp4l0-21swapper/309:40:153
134491410,4ptp4l0-21swapper/212:01:172
134491410,4ptp4l0-21swapper/011:15:150
134491410,4ptp4l0-21swapper/011:15:140
134491410,4ptp4l0-21swapper/010:55:100
134491410,3ptp4l5776-21apt-get09:50:113
134491410,3ptp4l24044-21apt-get09:20:120
134491410,3ptp4l18485-21ls09:05:260
134491410,3ptp4l17935-21ls09:05:203
2854799400,6cyclictest14622-21apt-get09:00:123
2854699409,5cyclictest33-21ksoftirqd/210:20:272
28546994035,3cyclictest33-21ksoftirqd/210:15:192
28546994035,2cyclictest33-21ksoftirqd/211:50:202
28546994022,9cyclictest33-21ksoftirqd/209:58:272
28546994010,3cyclictest33-21ksoftirqd/208:40:232
134491400,9ptp4l0-21swapper/211:28:342
134491400,5ptp4l0-21swapper/107:05:161
134491400,4ptp4l17260-21df_inode07:55:130
134491400,4ptp4l15026-21fschecks_time09:00:160
134491400,4ptp4l0-21swapper/309:33:363
134491400,4ptp4l0-21swapper/307:40:233
134491400,4ptp4l0-21swapper/307:10:173
134491400,4ptp4l0-21swapper/212:32:142
134491400,4ptp4l0-21swapper/211:48:012
134491400,4ptp4l0-21swapper/211:19:432
134491400,4ptp4l0-21swapper/211:19:432
134491400,4ptp4l0-21swapper/209:50:052
134491400,4ptp4l0-21swapper/209:15:142
134491400,4ptp4l0-21swapper/208:37:322
134491400,4ptp4l0-21swapper/208:00:212
134491400,4ptp4l0-21swapper/208:00:212
134491400,4ptp4l0-21swapper/207:38:162
134491400,4ptp4l0-21swapper/207:34:542
134491400,4ptp4l0-21swapper/012:05:580
134491400,4ptp4l0-21swapper/010:30:190
134491400,4ptp4l0-21swapper/009:40:170
134491400,4ptp4l0-21swapper/008:21:260
134491400,4ptp4l0-21swapper/007:16:530
134491400,3ptp4l27534-21iostat_ios11:45:180
134491400,3ptp4l12864-21iostat08:55:160
134491400,2ptp4l9326-21strings11:05:222
134491400,2ptp4l6440-21diskstats12:10:160
2854799394,29cyclictest19786-21apt-get11:30:123
28547993910,27cyclictest0-21swapper/311:55:593
2854799390,4cyclictest1301-21snmpd08:44:203
2854699394,2cyclictest121rcu_preempt09:40:002
28546993935,2cyclictest33-21ksoftirqd/208:45:182
28546993934,3cyclictest33-21ksoftirqd/211:55:242
28546993927,10cyclictest33-21ksoftirqd/209:00:282
2854699392,6cyclictest33-21ksoftirqd/211:30:222
134491390,4ptp4l20025-21fw_packets10:20:150
134491390,4ptp4l0-21swapper/312:35:123
134491390,4ptp4l0-21swapper/312:05:163
134491390,4ptp4l0-21swapper/311:50:143
134491390,4ptp4l0-21swapper/311:42:213
134491390,4ptp4l0-21swapper/311:10:213
134491390,4ptp4l0-21swapper/311:09:573
134491390,4ptp4l0-21swapper/310:30:143
134491390,4ptp4l0-21swapper/310:16:003
134491390,4ptp4l0-21swapper/308:58:223
134491390,4ptp4l0-21swapper/308:35:213
134491390,4ptp4l0-21swapper/308:15:213
134491390,4ptp4l0-21swapper/307:46:593
134491390,4ptp4l0-21swapper/307:30:573
134491390,4ptp4l0-21swapper/307:29:413
134491390,4ptp4l0-21swapper/211:01:282
134491390,4ptp4l0-21swapper/210:25:242
134491390,4ptp4l0-21swapper/210:11:382
134491390,4ptp4l0-21swapper/209:48:262
134491390,4ptp4l0-21swapper/208:52:122
134491390,4ptp4l0-21swapper/208:23:062
134491390,4ptp4l0-21swapper/207:59:452
134491390,4ptp4l0-21swapper/207:46:012
134491390,4ptp4l0-21swapper/207:26:572
134491390,4ptp4l0-21swapper/207:20:552
134491390,4ptp4l0-21swapper/207:16:172
134491390,4ptp4l0-21swapper/012:25:120
134491390,4ptp4l0-21swapper/011:50:050
134491390,4ptp4l0-21swapper/011:21:170
134491390,4ptp4l0-21swapper/009:57:520
134491390,4ptp4l0-21swapper/008:25:160
134491390,3ptp4l0-21swapper/008:30:280
134491390,3ptp4l0-21swapper/007:50:520
28547993832,4cyclictest41-21ksoftirqd/308:50:113
28547993814,21cyclictest688-21/usr/sbin/munin08:30:273
28546993833,3cyclictest33-21ksoftirqd/208:15:252
134491380,4ptp4l0-21swapper/312:20:533
134491380,4ptp4l0-21swapper/312:15:233
134491380,4ptp4l0-21swapper/311:45:063
134491380,4ptp4l0-21swapper/311:35:263
134491380,4ptp4l0-21swapper/311:00:243
134491380,4ptp4l0-21swapper/310:05:243
134491380,4ptp4l0-21swapper/309:58:263
134491380,4ptp4l0-21swapper/309:46:163
134491380,4ptp4l0-21swapper/309:39:173
134491380,4ptp4l0-21swapper/210:56:252
134491380,4ptp4l0-21swapper/208:32:272
134491380,4ptp4l0-21swapper/208:27:202
134491380,3ptp4l0-21swapper/310:39:163
134491380,3ptp4l0-21swapper/309:15:293
134491370,4ptp4l0-21swapper/311:25:203
134491370,3ptp4l0-21swapper/312:31:403
134491370,3ptp4l0-21swapper/312:25:593
134491370,3ptp4l0-21swapper/310:25:433
134491370,3ptp4l0-21swapper/307:55:403
2854799361,3cyclictest134491ptp4l08:20:273
134491360,4ptp4l0-21swapper/311:20:013
134491360,4ptp4l0-21swapper/310:46:453
134491360,4ptp4l0-21swapper/308:06:413
134491360,3ptp4l0-21swapper/309:14:553
134491360,3ptp4l0-21swapper/308:11:093
134491360,3ptp4l0-21swapper/307:38:203
134491360,3ptp4l0-21swapper/307:16:493
2854799350,3cyclictest2654-21ntp_states12:00:253
134491350,4ptp4l0-21swapper/310:12:103
2854799340,4cyclictest20600-21sed10:20:203
28547993328,3cyclictest41-21ksoftirqd/308:00:133
28547993328,3cyclictest41-21ksoftirqd/308:00:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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