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2025-12-25 - 21:52
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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot6.osadl.org (updated Thu Dec 25, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911080,3ptp4l401ktimersoftd/307:14:233
48042680,5sleep24808-21latency11:22:352
300962660,2sleep30-21swapper/307:42:363
155892654,10sleep00-21swapper/007:13:340
279832600,5sleep127986-21unixbench_multi07:37:401
15982995946,5cyclictest41-21ksoftirqd/311:37:273
106891590,1ptp4l401ktimersoftd/308:07:283
106891540,1ptp4l401ktimersoftd/312:11:053
15982995342,5cyclictest41-21ksoftirqd/307:27:223
15982995340,7cyclictest41-21ksoftirqd/311:57:273
15982995339,7cyclictest41-21ksoftirqd/310:37:283
106891530,1ptp4l401ktimersoftd/308:15:073
157212504,34sleep20-21swapper/207:15:172
15982994939,5cyclictest41-21ksoftirqd/308:27:243
15982994936,7cyclictest41-21ksoftirqd/310:22:243
158452494,34sleep10-21swapper/107:16:541
15982994836,5cyclictest41-21ksoftirqd/311:02:263
106891470,1ptp4l401ktimersoftd/312:19:453
15982994636,5cyclictest41-21ksoftirqd/310:52:253
15982994534,5cyclictest41-21ksoftirqd/309:07:223
106891450,1ptp4l401ktimersoftd/308:58:453
15982994332,5cyclictest41-21ksoftirqd/312:27:293
106891430,10ptp4l401ktimersoftd/312:43:523
106891410,1ptp4l401ktimersoftd/309:27:353
106891400,1ptp4l401ktimersoftd/311:27:263
106891380,5ptp4l401ktimersoftd/308:02:563
106891380,5ptp4l401ktimersoftd/308:02:563
106891380,1ptp4l401ktimersoftd/310:37:143
106891380,1ptp4l401ktimersoftd/309:43:253
15982993726,5cyclictest41-21ksoftirqd/311:12:273
15982993712,3cyclictest41-21ksoftirqd/311:52:453
1597899372,9cyclictest24413-21apt-get10:57:262
15978993712,4cyclictest29658-21latency07:42:282
15978993711,5cyclictest20029-21tune2fs10:47:292
106891370,2ptp4l495-21kworker/3:110:19:173
106891370,1ptp4l401ktimersoftd/310:02:443
106891370,1ptp4l401ktimersoftd/309:50:113
106891370,1ptp4l401ktimersoftd/309:17:283
15978993613,3cyclictest19180-21seq10:45:032
15973993629,4cyclictest25-21ksoftirqd/112:25:281
106891360,1ptp4l401ktimersoftd/312:15:283
106891360,0ptp4l401ktimersoftd/311:32:313
106891360,0ptp4l401ktimersoftd/310:44:073
106891360,0ptp4l401ktimersoftd/309:39:243
106891360,0ptp4l401ktimersoftd/309:14:193
1597899353,9cyclictest4451-21apt-get09:07:232
15978993512,3cyclictest9553-21sed11:32:322
15982993410,3cyclictest41-21ksoftirqd/311:07:443
1597899347,8cyclictest22277-21tail11:57:452
15978993416,4cyclictest33-21ksoftirqd/211:45:312
15978993411,4cyclictest32455-21expr11:12:332
106891340,1ptp4l401ktimersoftd/312:02:383
106891340,1ptp4l401ktimersoftd/307:19:253
1597899332,7cyclictest20267-21apt-get08:32:222
15978993320,8cyclictest321ktimersoftd/209:22:232
15978993311,4cyclictest10256-21latency_hist08:12:102
15968993328,3cyclictest20144-21cron11:57:150
106891330,1ptp4l401ktimersoftd/311:47:013
106891330,1ptp4l401ktimersoftd/310:12:143
106891330,1ptp4l401ktimersoftd/308:54:503
106891330,1ptp4l401ktimersoftd/308:37:583
15982993220,9cyclictest41-21ksoftirqd/307:22:253
1597899322,8cyclictest18682-21apt-get09:37:252
15978993216,3cyclictest33-21ksoftirqd/208:59:072
15978993214,4cyclictest33-21ksoftirqd/209:57:232
15978993214,4cyclictest33-21ksoftirqd/209:57:232
106891320,1ptp4l401ktimersoftd/311:01:043
106891320,1ptp4l401ktimersoftd/307:57:053
15982993125,4cyclictest41-21ksoftirqd/310:07:303
15982993125,3cyclictest41-21ksoftirqd/307:37:083
1597899312,9cyclictest9798-21apt-get12:42:282
15978993111,4cyclictest33-21ksoftirqd/208:42:492
106891310,1ptp4l401ktimersoftd/311:23:053
106891310,1ptp4l401ktimersoftd/309:35:173
106891310,1ptp4l401ktimersoftd/307:41:133
15982993025,3cyclictest41-21ksoftirqd/312:37:163
15982993025,3cyclictest41-21ksoftirqd/311:52:153
15982993024,3cyclictest41-21ksoftirqd/310:27:443
15982993019,3cyclictest41-21ksoftirqd/309:52:283
15978993023,4cyclictest33-21ksoftirqd/209:02:232
106891300,1ptp4l401ktimersoftd/309:06:033
106891300,0ptp4l401ktimersoftd/310:01:163
106891300,0ptp4l401ktimersoftd/310:01:163
15982992924,3cyclictest41-21ksoftirqd/311:17:293
15978992923,4cyclictest33-21ksoftirqd/209:12:232
15978992923,3cyclictest33-21ksoftirqd/212:24:152
106891290,0ptp4l401ktimersoftd/310:49:243
15982992823,3cyclictest41-21ksoftirqd/308:52:113
106891280,1ptp4l401ktimersoftd/309:23:053
251312270,7sleep025135-21phc2sys07:32:290
15982992722,3cyclictest41-21ksoftirqd/308:32:233
15982992722,3cyclictest41-21ksoftirqd/308:17:383
15982992722,3cyclictest41-21ksoftirqd/308:02:093
15982992722,3cyclictest41-21ksoftirqd/307:47:293
15982992721,3cyclictest41-21ksoftirqd/312:27:163
15982992721,3cyclictest41-21ksoftirqd/308:47:113
15978992721,3cyclictest33-21ksoftirqd/208:50:592
15978992721,3cyclictest33-21ksoftirqd/208:22:112
15978992720,4cyclictest33-21ksoftirqd/212:09:402
15978992720,4cyclictest33-21ksoftirqd/207:48:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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