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2026-09-05 - 15:46
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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 792 highest latencies:
System rackdslot3.osadl.org (updated Sat Sep 05, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190782228161,22sleep00-21swapper/007:05:060
210932208172,25sleep20-21swapper/207:08:372
139491208175,22phc2sys0-21swapper/307:09:583
211542200168,21sleep10-21swapper/107:09:261
302942670,5sleep230298-21switchtime09:40:242
21499996332,6cyclictest9-21ksoftirqd/012:30:180
21499996332,6cyclictest9-21ksoftirqd/012:30:180
21499996331,4cyclictest9-21ksoftirqd/009:35:010
21499996128,6cyclictest9-21ksoftirqd/012:15:240
21499996128,3cyclictest9-21ksoftirqd/007:35:240
181202610,6sleep32150299cyclictest08:10:083
21499996027,4cyclictest9-21ksoftirqd/009:15:010
21499996027,10cyclictest9-21ksoftirqd/008:55:000
116722600,4sleep011669-21cat11:20:000
21499995928,4cyclictest9-21ksoftirqd/010:35:140
21499995927,4cyclictest9-21ksoftirqd/007:20:250
21499995927,4cyclictest9-21ksoftirqd/007:20:250
21499995830,3cyclictest9-21ksoftirqd/009:00:200
21499995829,5cyclictest9-21ksoftirqd/011:45:220
21499995829,4cyclictest9-21ksoftirqd/011:54:040
21499995729,5cyclictest9-21ksoftirqd/008:25:160
21499995728,4cyclictest9-21ksoftirqd/009:20:120
21499995727,6cyclictest9-21ksoftirqd/007:44:560
21499995726,9cyclictest9-21ksoftirqd/007:15:130
21499995725,7cyclictest9-21ksoftirqd/008:15:000
21499995725,4cyclictest9-21ksoftirqd/011:40:000
21499995723,4cyclictest9-21ksoftirqd/011:10:010
21499995723,4cyclictest9-21ksoftirqd/010:10:010
21499995721,6cyclictest9-21ksoftirqd/008:15:230
2149999569,3cyclictest9-21ksoftirqd/010:20:000
21499995628,6cyclictest9-21ksoftirqd/007:30:260
21499995628,3cyclictest9-21ksoftirqd/012:25:140
21499995625,3cyclictest9-21ksoftirqd/011:00:000
21499995621,4cyclictest9-21ksoftirqd/008:20:200
21499995528,3cyclictest9-21ksoftirqd/011:30:160
21499995528,3cyclictest9-21ksoftirqd/011:30:160
21499995525,4cyclictest9-21ksoftirqd/009:15:240
21499995525,4cyclictest9-21ksoftirqd/008:05:200
21499995524,7cyclictest9-21ksoftirqd/012:00:200
21499995524,7cyclictest9-21ksoftirqd/012:00:200
21499995524,4cyclictest9-21ksoftirqd/010:25:240
21499995524,4cyclictest9-21ksoftirqd/010:00:140
21499995524,4cyclictest9-21ksoftirqd/010:00:140
21499995523,4cyclictest9-21ksoftirqd/008:40:010
21499995522,7cyclictest9-21ksoftirqd/011:40:190
21499995522,4cyclictest9-21ksoftirqd/009:00:000
21499995517,4cyclictest9-21ksoftirqd/010:20:270
2120625537,10sleep00-21swapper/007:10:010
21499995430,7cyclictest9-21ksoftirqd/007:55:120
21499995427,10cyclictest9-21ksoftirqd/010:10:170
21499995424,6cyclictest9-21ksoftirqd/010:45:000
21499995423,4cyclictest9-21ksoftirqd/012:10:170
21499995422,4cyclictest9-21ksoftirqd/011:00:130
21499995422,4cyclictest9-21ksoftirqd/011:00:130
21499995420,4cyclictest9-21ksoftirqd/009:45:000
21499995420,4cyclictest9-21ksoftirqd/007:55:000
21499995418,5cyclictest9-21ksoftirqd/011:55:160
21499995417,4cyclictest9-21ksoftirqd/008:45:250
21499995415,8cyclictest9-21ksoftirqd/007:25:180
139391540,1ptp4l401ktimersoftd/309:00:483
2150099530,8cyclictest241ktimersoftd/108:20:141
2149999539,4cyclictest9-21ksoftirqd/010:45:150
21499995325,6cyclictest9-21ksoftirqd/007:45:300
21499995323,4cyclictest9-21ksoftirqd/008:30:260
21499995322,9cyclictest9-21ksoftirqd/009:45:160
21499995322,4cyclictest9-21ksoftirqd/011:20:140
21499995319,4cyclictest9-21ksoftirqd/010:50:280
21499995319,4cyclictest9-21ksoftirqd/009:50:310
2150099524,6cyclictest29965-21apt-config08:35:001
2150099523,6cyclictest1300-21snmpd12:13:301
2150099522,7cyclictest241ktimersoftd/107:55:261
2150099522,6cyclictest241ktimersoftd/109:45:011
2150099516,6cyclictest32539-21ps07:30:231
2150099514,6cyclictest18899-21irqrtprio08:10:191
2150099512,6cyclictest241ktimersoftd/109:35:001
2150099512,6cyclictest12335-21unixbench_multi12:25:261
2150099510,8cyclictest241ktimersoftd/109:15:231
2149999517,3cyclictest9-21ksoftirqd/009:35:160
21499995122,7cyclictest9-21ksoftirqd/008:00:250
21499995122,6cyclictest9-21ksoftirqd/010:30:210
21499995122,6cyclictest9-21ksoftirqd/010:30:210
21499995118,9cyclictest9-21ksoftirqd/012:35:170
2150099500,7cyclictest241ktimersoftd/108:40:161
2150099500,6cyclictest241ktimersoftd/112:30:241
2150099500,6cyclictest241ktimersoftd/112:30:241
21499995017,4cyclictest9-21ksoftirqd/012:05:220
21501994944,3cyclictest856-21idleruntime-cro12:05:002
21501994944,3cyclictest856-21idleruntime-cro12:05:002
2150099491,6cyclictest3712-21ptp4l-jitter11:00:221
2150099491,6cyclictest3712-21ptp4l-jitter11:00:221
2150099491,6cyclictest241ktimersoftd/110:50:181
2150099491,11cyclictest4005-21cut08:45:231
2150099490,6cyclictest23876-21latency_hist09:30:001
21499994923,9cyclictest9-21ksoftirqd/008:40:270
21499994919,6cyclictest9-21ksoftirqd/011:27:460
21501994843,3cyclictest4522-21sh11:05:012
21501994843,3cyclictest4522-21sh11:05:012
2150099484,8cyclictest25-21ksoftirqd/111:55:001
2150099482,7cyclictest23210-21awk07:10:281
2150099482,6cyclictest241ktimersoftd/112:35:201
2150099481,6cyclictest241ktimersoftd/109:50:291
2150099481,6cyclictest19675-21timerwakeupswit10:25:251
2149999485,7cyclictest9-21ksoftirqd/012:20:170
2149999485,3cyclictest9-21ksoftirqd/011:10:230
2150099473,7cyclictest241ktimersoftd/111:20:161
2150099472,7cyclictest6123-21cpuspeed_turbos10:00:151
2150099472,7cyclictest6123-21cpuspeed_turbos10:00:141
2150099472,6cyclictest6608-21cat08:50:271
2150099472,5cyclictest241ktimersoftd/111:55:261
2150099471,7cyclictest15889-21cpuspeed_turbos08:05:151
21500994714,6cyclictest25-21ksoftirqd/111:45:251
2149999476,2cyclictest9-21ksoftirqd/009:55:000
21502994640,4cyclictest9550-21turbostat09:00:013
2150099463,7cyclictest4460-21cut09:55:211
2150099462,6cyclictest6997-21missed_timers12:15:211
2150099462,6cyclictest241ktimersoftd/112:05:201
2150099461,5cyclictest8737-21df_abs07:50:131
2149999466,3cyclictest9-21ksoftirqd/009:25:210
2150099451,6cyclictest2213-21latency_hist11:00:001
21500994512,4cyclictest25-21ksoftirqd/110:40:011
2150099450,8cyclictest19197-21/usr/sbin/munin11:35:181
2150099450,7cyclictest241ktimersoftd/111:15:261
2150099450,7cyclictest241ktimersoftd/108:25:171
2150099444,7cyclictest20958-21/usr/sbin/munin09:20:251
2150099443,6cyclictest241ktimersoftd/110:40:131
2150099441,6cyclictest7684-21basename11:10:171
2149999443,3cyclictest9-21ksoftirqd/009:05:130
2150099434,6cyclictest10913-21ls09:00:231
2150099432,6cyclictest13333-21cat10:15:141
2150099430,8cyclictest241ktimersoftd/111:10:001
2150099430,6cyclictest25-21ksoftirqd/110:30:291
2150099430,6cyclictest25-21ksoftirqd/110:30:281
2150099430,5cyclictest241ktimersoftd/107:45:301
2150099423,7cyclictest241ktimersoftd/107:25:171
21500994218,7cyclictest25-21ksoftirqd/110:09:431
2150099421,7cyclictest23729-21latency_hist11:45:011
2150099420,6cyclictest31501-21df_abs12:00:161
2150099420,6cyclictest31501-21df_abs12:00:151
139391420,34ptp4l0-21swapper/307:10:013
139391420,1ptp4l401ktimersoftd/308:54:463
21500994138,2cyclictest231rcuc/107:38:181
2150099412,7cyclictest4440-21irqrtprio07:40:201
2150099412,6cyclictest16988-21cpuspeed_turbos11:30:141
2150099412,6cyclictest16988-21cpuspeed_turbos11:30:141
2150099410,6cyclictest25-21ksoftirqd/107:15:251
139391410,0ptp4l401ktimersoftd/311:30:303
139391410,0ptp4l401ktimersoftd/311:30:303
2150099402,7cyclictest241ktimersoftd/109:35:161
2150099402,6cyclictest7795-21sed08:55:151
2150099400,5cyclictest25-21ksoftirqd/108:00:251
2150099400,5cyclictest241ktimersoftd/112:20:261
139391390,0ptp4l401ktimersoftd/307:15:223
2150099381,5cyclictest241ktimersoftd/111:25:271
21502993630,4cyclictest41-21ksoftirqd/310:01:573
21502993630,4cyclictest41-21ksoftirqd/310:01:563
21502993630,4cyclictest41-21ksoftirqd/308:28:413
21502993630,4cyclictest41-21ksoftirqd/307:26:583
21501993632,2cyclictest3363-21cron09:54:592
21501993630,4cyclictest33-21ksoftirqd/212:22:032
21501993630,4cyclictest33-21ksoftirqd/210:36:452
21501993630,4cyclictest33-21ksoftirqd/209:58:382
21500993632,2cyclictest231rcuc/109:12:361
2150099360,6cyclictest241ktimersoftd/109:05:141
139391360,0ptp4l401ktimersoftd/308:20:243
21502993529,4cyclictest41-21ksoftirqd/309:06:173
21502993529,4cyclictest41-21ksoftirqd/308:02:583
21502993529,3cyclictest41-21ksoftirqd/312:00:013
21502993528,5cyclictest41-21ksoftirqd/309:50:133
21501993530,3cyclictest33-21ksoftirqd/210:10:012
21501993529,4cyclictest33-21ksoftirqd/211:58:452
21501993529,4cyclictest33-21ksoftirqd/211:45:292
21501993529,4cyclictest33-21ksoftirqd/210:25:542
21501993529,4cyclictest33-21ksoftirqd/208:10:112
21501993529,4cyclictest33-21ksoftirqd/208:04:052
21501993529,4cyclictest33-21ksoftirqd/207:47:442
21500993532,2cyclictest231rcuc/109:47:361
21500993530,3cyclictest25-21ksoftirqd/108:35:161
139391350,0ptp4l401ktimersoftd/307:36:343
21502993428,4cyclictest41-21ksoftirqd/312:25:413
21502993428,4cyclictest41-21ksoftirqd/309:47:083
21502993428,4cyclictest41-21ksoftirqd/309:19:563
21502993428,4cyclictest41-21ksoftirqd/307:45:093
21501993429,3cyclictest33-21ksoftirqd/211:35:102
21501993429,3cyclictest33-21ksoftirqd/211:10:142
21501993428,4cyclictest33-21ksoftirqd/209:38:282
2150099343,7cyclictest25-21ksoftirqd/110:11:021
2150099343,7cyclictest25-21ksoftirqd/108:17:031
21502993329,3cyclictest41-21ksoftirqd/310:05:123
21502993329,3cyclictest41-21ksoftirqd/310:00:013
21502993328,3cyclictest41-21ksoftirqd/311:27:043
21502993328,3cyclictest41-21ksoftirqd/310:51:303
21502993328,3cyclictest41-21ksoftirqd/310:20:303
21502993328,3cyclictest41-21ksoftirqd/308:47:593
21502993327,4cyclictest41-21ksoftirqd/311:55:003
21502993327,4cyclictest41-21ksoftirqd/309:27:343
21502993327,4cyclictest41-21ksoftirqd/308:06:273
21502993327,4cyclictest14232-21sh11:24:593
21501993329,3cyclictest33-21ksoftirqd/207:27:032
21501993329,2cyclictest14224-21cron11:24:592
21501993328,3cyclictest33-21ksoftirqd/211:41:132
21501993328,3cyclictest33-21ksoftirqd/210:55:292
21501993328,3cyclictest33-21ksoftirqd/210:03:572
21501993328,3cyclictest33-21ksoftirqd/210:03:572
21501993328,3cyclictest33-21ksoftirqd/209:25:122
21501993328,3cyclictest33-21ksoftirqd/208:25:232
21501993328,3cyclictest33-21ksoftirqd/207:24:512
21501993328,3cyclictest33-21ksoftirqd/207:24:512
21501993327,4cyclictest33-21ksoftirqd/211:07:112
21501993327,4cyclictest33-21ksoftirqd/210:42:382
21501993327,4cyclictest33-21ksoftirqd/210:21:492
21501993327,4cyclictest33-21ksoftirqd/210:14:432
21501993327,4cyclictest33-21ksoftirqd/209:49:152
21501993327,4cyclictest33-21ksoftirqd/208:46:372
21501993327,4cyclictest33-21ksoftirqd/208:15:532
21501993326,5cyclictest33-21ksoftirqd/209:00:002
21501993321,10cyclictest33-21ksoftirqd/209:33:402
21500993329,3cyclictest25-21ksoftirqd/110:20:001
139391330,0ptp4l401ktimersoftd/312:30:213
139391330,0ptp4l401ktimersoftd/312:30:213
21502993228,2cyclictest41-21ksoftirqd/311:02:113
21502993228,2cyclictest41-21ksoftirqd/311:02:113
21502993227,3cyclictest41-21ksoftirqd/312:03:413
21502993227,3cyclictest41-21ksoftirqd/312:03:403
21502993226,4cyclictest41-21ksoftirqd/307:43:083
21501993227,3cyclictest33-21ksoftirqd/209:22:262
21501993226,4cyclictest33-21ksoftirqd/212:37:162
21501993226,4cyclictest33-21ksoftirqd/212:19:522
21501993226,4cyclictest33-21ksoftirqd/210:50:372
21500993228,2cyclictest25-21ksoftirqd/107:20:131
21500993228,2cyclictest25-21ksoftirqd/107:20:121
21502993126,3cyclictest41-21ksoftirqd/309:21:393
21502993126,3cyclictest41-21ksoftirqd/307:57:563
21502993125,4cyclictest41-21ksoftirqd/311:13:323
21502993125,4cyclictest41-21ksoftirqd/311:07:113
21502993125,4cyclictest41-21ksoftirqd/309:43:153
21502993125,4cyclictest41-21ksoftirqd/309:10:533
21501993127,3cyclictest33-21ksoftirqd/212:27:042
21501993127,2cyclictest33-21ksoftirqd/211:20:002
21501993126,3cyclictest33-21ksoftirqd/209:04:142
21501993125,4cyclictest33-21ksoftirqd/210:35:002
21501993125,4cyclictest33-21ksoftirqd/210:35:002
21501993125,4cyclictest33-21ksoftirqd/208:50:462
21501993125,4cyclictest33-21ksoftirqd/208:37:472
21501993121,8cyclictest33-21ksoftirqd/207:56:022
21501993120,9cyclictest33-21ksoftirqd/208:40:272
21500993114,4cyclictest25-21ksoftirqd/110:49:261
139391310,9ptp4l401ktimersoftd/310:15:133
139391310,0ptp4l401ktimersoftd/312:15:313
139391310,0ptp4l401ktimersoftd/312:05:203
139391310,0ptp4l401ktimersoftd/310:10:203
139391310,0ptp4l401ktimersoftd/309:38:263
21502993025,3cyclictest41-21ksoftirqd/310:41:333
21502993024,4cyclictest41-21ksoftirqd/311:39:013
21502993024,4cyclictest41-21ksoftirqd/310:57:443
21502993024,4cyclictest41-21ksoftirqd/310:32:263
21502993024,4cyclictest41-21ksoftirqd/310:32:263
21502993024,4cyclictest41-21ksoftirqd/308:40:533
21502993024,4cyclictest41-21ksoftirqd/308:15:223
21501993025,3cyclictest33-21ksoftirqd/208:20:142
21501993025,3cyclictest33-21ksoftirqd/208:07:002
21501993024,4cyclictest33-21ksoftirqd/209:13:582
139391300,0ptp4l401ktimersoftd/309:30:253
21501992923,4cyclictest33-21ksoftirqd/211:26:552
21501992923,4cyclictest33-21ksoftirqd/209:18:592
21501992923,4cyclictest33-21ksoftirqd/207:37:022
21502992823,3cyclictest41-21ksoftirqd/307:34:323
21502992823,3cyclictest41-21ksoftirqd/307:20:093
21502992823,3cyclictest41-21ksoftirqd/307:20:093
21502992822,4cyclictest41-21ksoftirqd/312:38:223
21502992822,4cyclictest41-21ksoftirqd/312:20:123
21501992824,2cyclictest33-21ksoftirqd/212:05:282
21501992823,3cyclictest33-21ksoftirqd/207:13:202
21501992822,4cyclictest33-21ksoftirqd/212:14:462
21501992822,4cyclictest33-21ksoftirqd/211:32:492
21501992822,4cyclictest33-21ksoftirqd/211:32:492
21501992822,4cyclictest33-21ksoftirqd/207:53:012
21501992822,4cyclictest33-21ksoftirqd/207:31:402
21502992722,3cyclictest41-21ksoftirqd/311:44:183
21502992722,3cyclictest41-21ksoftirqd/310:46:343
21502992722,3cyclictest41-21ksoftirqd/310:35:233
21501992722,3cyclictest33-21ksoftirqd/210:48:132
21501992721,4cyclictest33-21ksoftirqd/208:31:212
21501992721,4cyclictest33-21ksoftirqd/207:15:112
139391270,0ptp4l401ktimersoftd/308:30:233
21502992621,3cyclictest41-21ksoftirqd/312:11:013
21502992621,3cyclictest41-21ksoftirqd/310:27:013
21502992620,4cyclictest41-21ksoftirqd/311:49:433
21501992620,4cyclictest33-21ksoftirqd/207:41:192
139391260,6ptp4l2150299cyclictest07:52:483
21501992521,2cyclictest13210-21cut12:30:152
21501992521,2cyclictest13210-21cut12:30:152
21501992520,3cyclictest33-21ksoftirqd/211:54:592
139391250,0ptp4l401ktimersoftd/308:35:273
21501992419,3cyclictest33-21ksoftirqd/210:20:002
21501992318,3cyclictest33-21ksoftirqd/209:08:132
139391230,0ptp4l401ktimersoftd/311:15:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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