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2026-07-19 - 05:23
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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 50 highest latencies:
System rackbslot6.osadl.org (updated Sun Jul 19, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
595822400,32sleep10-21swapper/121:06:081
1459121640,4sleep0767599cyclictest02:09:460
1068911000,3ptp4l401ktimersoftd/321:06:143
106891720,1ptp4l401ktimersoftd/322:46:183
106891720,1ptp4l401ktimersoftd/322:46:183
106891700,1ptp4l401ktimersoftd/301:11:513
307522660,2sleep30-21swapper/300:46:183
106891620,2ptp4l401ktimersoftd/323:13:313
106891600,1ptp4l401ktimersoftd/302:19:053
106891600,1ptp4l401ktimersoftd/301:20:013
106891590,1ptp4l401ktimersoftd/302:21:443
106891590,1ptp4l401ktimersoftd/302:21:443
768799580,22cyclictest26445-21timerandwakeup00:41:252
768799570,29cyclictest20320-21ssh00:02:402
106891570,1ptp4l401ktimersoftd/300:53:583
768799561,21cyclictest13875-21latency23:56:162
295472560,2sleep00-21swapper/000:11:460
283012560,2sleep0767599cyclictest02:22:500
283012560,2sleep0767599cyclictest02:22:500
106891560,1ptp4l401ktimersoftd/301:54:433
106891560,1ptp4l401ktimersoftd/301:47:393
41842550,1sleep20-21swapper/201:58:522
238892550,2sleep00-21swapper/022:51:080
7681995441,6cyclictest25-21ksoftirqd/100:39:271
106891520,1ptp4l401ktimersoftd/321:45:403
75962510,1sleep20-21swapper/223:16:272
768799500,26cyclictest28820-21ssh01:16:462
7681994936,5cyclictest25-21ksoftirqd/123:56:071
768799480,31cyclictest0-21swapper/222:36:132
7681994633,6cyclictest25-21ksoftirqd/101:31:111
7681994633,6cyclictest25-21ksoftirqd/101:21:121
106891460,1ptp4l401ktimersoftd/300:42:553
145312450,2sleep214529-21sh01:02:432
7681994433,5cyclictest25-21ksoftirqd/100:31:081
7681994433,5cyclictest25-21ksoftirqd/100:31:081
768799430,24cyclictest15859-21ssh23:26:022
7681994334,4cyclictest25-21ksoftirqd/101:06:101
7681994329,7cyclictest25-21ksoftirqd/122:06:051
7681994229,6cyclictest25-21ksoftirqd/121:56:061
768799411,36cyclictest31211-21/usr/sbin/munin00:46:242
7681994030,5cyclictest25-21ksoftirqd/122:46:051
7681994030,5cyclictest25-21ksoftirqd/122:46:051
106891400,1ptp4l401ktimersoftd/323:59:213
106891400,1ptp4l401ktimersoftd/322:56:193
7696993926,7cyclictest41-21ksoftirqd/323:51:083
106891390,1ptp4l401ktimersoftd/323:34:093
106891390,1ptp4l401ktimersoftd/301:42:443
768199385,3cyclictest25-21ksoftirqd/101:36:161
106891380,2ptp4l15031-21kworker/3:202:36:143
106891380,1ptp4l401ktimersoftd/302:08:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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