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2025-12-19 - 08:54
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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 rack4slot1.osadl.org (updated Fri Dec 19, 2025 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1410921440,3sleep00-21swapper/021:22:410
1410921440,3sleep00-21swapper/021:22:410
2924121390,3sleep00-21swapper/000:22:570
795621370,2sleep00-21swapper/000:34:460
615821360,2sleep05886-21latency_hist21:15:100
879521070,4sleep333-21ksoftirqd/320:00:233
879521070,4sleep333-21ksoftirqd/320:00:233
698221060,3sleep10-21swapper/123:27:041
698221060,3sleep10-21swapper/123:27:041
698221060,3sleep10-21swapper/123:27:041
55121060,2sleep30-21swapper/319:40:143
55121060,2sleep30-21swapper/319:40:143
2423021030,3sleep00-21swapper/000:17:460
2423021030,3sleep00-21swapper/000:17:460
2423021030,3sleep00-21swapper/000:17:460
305632930,3sleep00-21swapper/023:18:310
305632930,3sleep00-21swapper/023:18:310
305632930,3sleep00-21swapper/023:18:310
217432840,3sleep30-21swapper/321:30:203
177012830,3chrt0-21swapper/000:10:270
177012830,3chrt0-21swapper/000:10:270
182992820,4sleep10-21swapper/121:26:401
182992820,4sleep10-21swapper/121:26:401
103222820,2sleep00-21swapper/000:03:520
266002800,3sleep30-21swapper/320:50:173
266002800,3sleep30-21swapper/320:50:173
185632800,3chrt0-21swapper/123:05:301
185632800,3chrt0-21swapper/123:05:301
80882780,4sleep30-21swapper/322:55:193
80882780,4sleep30-21swapper/322:55:193
80882780,4sleep30-21swapper/322:55:193
9702770,2sleep10-21swapper/122:15:151
9702770,2sleep10-21swapper/122:15:151
9702770,2sleep10-21swapper/122:15:151
264402720,3sleep30-21swapper/323:14:403
157622720,2sleep30-21swapper/320:20:203
157622720,2sleep30-21swapper/320:20:203
324532670,3sleep30-21swapper/300:25:333
324532670,3sleep30-21swapper/300:25:333
227692650,2chrt0-21swapper/021:31:010
13292650,3sleep10-21swapper/100:27:241
13292650,3sleep10-21swapper/100:27:241
293502630,3chrt0-21swapper/322:44:303
216232620,7sleep121-21ksoftirqd/120:35:251
216232620,7sleep121-21ksoftirqd/120:35:251
280682610,3sleep00-21swapper/022:42:420
323672570,7chrt33-21ksoftirqd/322:46:513
211832570,4chrt21182-21systemctl22:35:230
211832570,4chrt21182-21systemctl22:35:230
200082570,2sleep00-21swapper/021:29:040
200082570,2sleep00-21swapper/021:29:040
90422560,3sleep30-21swapper/300:35:173
90422560,3sleep30-21swapper/300:35:173
90422560,3sleep30-21swapper/300:35:173
7972550,3sleep0151rcuc/022:15:140
7972550,3sleep0151rcuc/022:15:140
7972550,3sleep0151rcuc/022:15:140
60862540,3chrt0-21swapper/323:59:413
60862540,3chrt0-21swapper/323:59:413
300162530,2sleep10-21swapper/100:24:031
128472520,3sleep30-21swapper/323:00:183
128472520,3sleep30-21swapper/323:00:183
269332510,2sleep127016-21sendmail_mailqu20:50:251
269332510,2sleep127016-21sendmail_mailqu20:50:251
3152500,2sleep00-21swapper/019:40:110
293152490,1chrt0-21swapper/123:16:471
293152490,1chrt0-21swapper/123:16:471
293152490,1chrt0-21swapper/123:16:471
137962490,2sleep113807-21ssh23:00:411
137962490,2sleep113807-21ssh23:00:411
90882480,3chrt0-21swapper/021:50:180
90882480,3chrt0-21swapper/021:50:180
312002480,3sleep00-21swapper/000:25:140
312002480,3sleep00-21swapper/000:25:140
238292480,3sleep30-21swapper/322:38:353
238292480,3sleep30-21swapper/322:38:353
52602460,12sleep333-21ksoftirqd/323:25:213
52602460,12sleep333-21ksoftirqd/323:25:213
52602460,12sleep333-21ksoftirqd/323:25:213
164972460,4chrt0-21swapper/321:57:533
164972460,4chrt0-21swapper/321:57:533
154652460,3sleep30-21swapper/300:09:133
154652460,3sleep30-21swapper/300:09:133
281762450,3sleep20-21swapper/223:49:032
281762450,3sleep20-21swapper/223:49:032
205592450,2sleep20-21swapper/221:29:512
205592450,2sleep20-21swapper/221:29:512
180812450,3sleep30-21swapper/323:05:243
180812450,3sleep30-21swapper/323:05:243
16762450,4sleep1201rcuc/121:10:171
16762450,4sleep1201rcuc/121:10:171
23982440,3sleep30-21swapper/322:15:573
23982440,3sleep30-21swapper/322:15:573
23982440,3sleep30-21swapper/322:15:573
193692430,3chrt0-21swapper/322:34:133
193692430,3chrt0-21swapper/322:34:133
150422430,2sleep20-21swapper/221:24:002
150422430,2sleep20-21swapper/221:24:002
146472430,3sleep10-21swapper/122:29:291
146472430,3sleep10-21swapper/122:29:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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