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2026-06-28 - 10:08
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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 Sun Jun 28, 2026 00:45:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2062821500,3sleep30-21swapper/321:55:583
2062821500,3sleep30-21swapper/321:55:583
2589821180,4sleep00-21swapper/023:57:090
2589821180,4sleep00-21swapper/023:57:090
2289921060,3sleep30-21swapper/323:15:003
2289921060,3sleep30-21swapper/323:15:003
2289921060,3sleep30-21swapper/323:15:003
2875821040,4sleep00-21swapper/021:29:140
2875821040,4sleep00-21swapper/021:29:140
79532980,3chrt0-21swapper/000:14:330
79532980,3chrt0-21swapper/000:14:330
81692970,3chrt0-21swapper/200:14:512
81692970,3chrt0-21swapper/200:14:512
238092960,3sleep20-21swapper/221:22:332
238092960,3sleep20-21swapper/221:22:332
238092960,3sleep20-21swapper/221:22:332
154212960,3sleep20-21swapper/200:21:142
154212960,3sleep20-21swapper/200:21:142
154212960,3sleep20-21swapper/200:21:142
226832880,17sleep00-21swapper/020:05:550
226832880,17sleep00-21swapper/020:05:550
201212820,2sleep30-21swapper/323:50:493
201212820,2sleep30-21swapper/323:50:493
188542810,3sleep218853-21ssh00:25:572
188542810,3sleep218853-21ssh00:25:572
188542810,3sleep218853-21ssh00:25:572
189422780,9sleep333-21ksoftirqd/300:25:583
189422780,9sleep333-21ksoftirqd/300:25:583
189422780,9sleep333-21ksoftirqd/300:25:583
319982720,4sleep20-21swapper/220:30:562
319982720,4sleep20-21swapper/220:30:562
244372710,3sleep10-21swapper/121:23:441
244372710,3sleep10-21swapper/121:23:441
244372710,3sleep10-21swapper/121:23:441
250832700,3sleep20-21swapper/222:38:212
250832700,3sleep20-21swapper/222:38:212
178842650,3sleep00-21swapper/000:25:380
178842650,3sleep00-21swapper/000:25:380
178842650,3sleep00-21swapper/000:25:380
102652650,3chrt0-21swapper/023:38:320
102652650,3chrt0-21swapper/023:38:320
190912610,1sleep019234-21/usr/sbin/munin00:26:000
190912610,1sleep019234-21/usr/sbin/munin00:26:000
190912610,1sleep019234-21/usr/sbin/munin00:26:000
317322570,2sleep10-21swapper/100:05:301
317322570,2sleep10-21swapper/100:05:301
317322570,2sleep10-21swapper/100:05:301
261312560,3sleep30-21swapper/322:03:053
261312560,3sleep30-21swapper/322:03:053
261312560,3sleep30-21swapper/322:03:053
83932550,2sleep28502-21switchtime23:35:582
83932550,2sleep28502-21switchtime23:35:582
122312550,3sleep012228-21ssh22:25:490
122312550,3sleep012228-21ssh22:25:490
66112540,3chrt0-21swapper/322:19:093
66112540,3chrt0-21swapper/322:19:093
287872540,5sleep00-21swapper/000:00:540
287872540,5sleep00-21swapper/000:00:540
287872540,5sleep00-21swapper/000:00:540
96432530,3chrt0-21swapper/300:15:533
96432530,3chrt0-21swapper/300:15:533
97512520,2chrt0-21swapper/022:58:290
97512520,2chrt0-21swapper/022:58:290
3892520,2sleep00-21swapper/022:46:400
3892520,2sleep00-21swapper/022:46:400
190162510,3sleep20-21swapper/222:31:542
190162510,3sleep20-21swapper/222:31:542
312992500,4sleep30-21swapper/300:04:433
312992500,4sleep30-21swapper/300:04:433
312992500,4sleep30-21swapper/300:04:433
281892490,2sleep20-21swapper/220:20:562
281892490,2sleep20-21swapper/220:20:562
221612490,3chrt0-21swapper/122:35:471
221612490,3chrt0-21swapper/122:35:471
19622480,3sleep01623-21ls19:10:500
19622480,3sleep01623-21ls19:10:500
69272470,3sleep20-21swapper/222:55:412
69272470,3sleep20-21swapper/222:55:412
318822470,2sleep30-21swapper/323:25:493
318822470,2sleep30-21swapper/323:25:493
3117994628,12cyclictest27980-21latency_hist00:00:431
3117994628,12cyclictest27980-21latency_hist00:00:431
32602450,2sleep13454-21awk21:35:591
32602450,2sleep13454-21awk21:35:591
185522450,1sleep0121ksoftirqd/023:48:410
185522450,1sleep0121ksoftirqd/023:48:410
185522450,1sleep0121ksoftirqd/023:48:410
148692450,3sleep20-21swapper/219:45:472
103662440,3sleep10-21swapper/122:59:341
103662440,3sleep10-21swapper/122:59:341
156722430,3sleep20-21swapper/223:45:412
156722430,3sleep20-21swapper/223:45:412
103842430,3sleep30-21swapper/322:59:363
103842430,3sleep30-21swapper/322:59:363
204862420,6sleep227-21ksoftirqd/221:55:572
204862420,6sleep227-21ksoftirqd/221:55:572
247462410,3sleep30-21swapper/323:55:553
247462410,3sleep30-21swapper/323:55:553
226102410,3sleep30-21swapper/300:30:533
226102410,3sleep30-21swapper/300:30:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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