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2026-04-10 - 03:01
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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 50 highest latencies:
System rackbslot6.osadl.org (updated Fri Apr 10, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2483821650,5sleep12052799cyclictest01:45:431
1921021260,7sleep2311rcuc/220:10:552
106891990,3ptp4l401ktimersoftd/320:14:573
20538997460,6cyclictest41-21ksoftirqd/323:20:533
106891720,1ptp4l401ktimersoftd/300:24:443
106891710,1ptp4l401ktimersoftd/323:33:153
106891660,1ptp4l401ktimersoftd/300:49:543
106891640,1ptp4l401ktimersoftd/322:24:143
231692630,3sleep341-21ksoftirqd/321:25:533
201782634,10sleep00-21swapper/020:12:350
2053499611,23cyclictest7561-21ssh23:14:372
20538995947,6cyclictest41-21ksoftirqd/300:05:533
106891590,1ptp4l401ktimersoftd/323:57:453
106891590,1ptp4l401ktimersoftd/323:06:113
19472570,4sleep11949-21cut20:40:551
106891550,1ptp4l401ktimersoftd/300:27:513
2052799548,5cyclictest25-21ksoftirqd/121:11:071
105192540,2sleep10-21swapper/123:50:571
106891530,1ptp4l401ktimersoftd/301:00:023
286712520,2sleep20-21swapper/200:41:372
106891520,1ptp4l401ktimersoftd/322:51:153
20538995138,6cyclictest41-21ksoftirqd/300:00:523
2052799504,7cyclictest25-21ksoftirqd/123:15:571
128242500,1sleep30-21swapper/323:20:193
2052799494,7cyclictest25-21ksoftirqd/120:15:371
2052799490,13cyclictest25-21ksoftirqd/100:41:011
20523994938,5cyclictest9-21ksoftirqd/000:30:550
20523994938,5cyclictest9-21ksoftirqd/000:30:550
2052799486,9cyclictest25-21ksoftirqd/101:06:041
2052799486,9cyclictest25-21ksoftirqd/100:51:121
2052799485,9cyclictest25-21ksoftirqd/123:10:581
2052799485,8cyclictest25-21ksoftirqd/122:50:401
2052799483,6cyclictest25-21ksoftirqd/122:21:101
20527994818,8cyclictest25-21ksoftirqd/100:32:091
20527994818,8cyclictest25-21ksoftirqd/100:32:091
20527994817,11cyclictest25-21ksoftirqd/101:26:151
20538994741,3cyclictest41-21ksoftirqd/322:25:533
20538994735,5cyclictest41-21ksoftirqd/301:30:563
2052799477,8cyclictest25-21ksoftirqd/101:36:121
2052799476,9cyclictest25-21ksoftirqd/101:03:511
2052799476,8cyclictest13896-21diskmemload22:31:051
2052799475,9cyclictest25-21ksoftirqd/121:06:071
2052799475,6cyclictest25-21ksoftirqd/100:20:411
2052799474,7cyclictest25-21ksoftirqd/100:45:591
20527994719,9cyclictest25-21ksoftirqd/101:25:441
20527994719,10cyclictest25-21ksoftirqd/121:00:521
2052799471,7cyclictest871-21apt-config20:40:361
20527994716,8cyclictest25-21ksoftirqd/101:19:571
105791470,5getstats2053899cyclictest20:23:143
2052799466,9cyclictest25-21ksoftirqd/122:06:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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