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2025-11-08 - 14:06
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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 Sat Nov 08, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1773911520,8ptp4l13679-21kworker/3:120:06:083
238092760,1sleep023812-21grep22:24:480
177391670,1ptp4l401ktimersoftd/323:56:553
305492640,4sleep341-21ksoftirqd/300:20:223
160912644,10sleep00-21swapper/020:06:330
16429996249,7cyclictest41-21ksoftirqd/323:14:443
10942620,2sleep20-21swapper/221:49:502
79292610,2sleep30-21swapper/322:43:143
16429996046,6cyclictest41-21ksoftirqd/321:59:433
16415995952,4cyclictest9-21ksoftirqd/001:34:470
16415995851,4cyclictest9-21ksoftirqd/001:09:490
177391570,1ptp4l401ktimersoftd/300:14:393
16415995649,3cyclictest9-21ksoftirqd/022:34:460
16415995548,4cyclictest9-21ksoftirqd/023:04:470
16429995338,8cyclictest41-21ksoftirqd/321:44:443
253832520,2sleep30-21swapper/320:24:483
16429995238,7cyclictest41-21ksoftirqd/323:44:503
177391490,1ptp4l401ktimersoftd/301:30:003
16415994942,4cyclictest9-21ksoftirqd/022:19:450
16415994739,4cyclictest9-21ksoftirqd/000:59:470
16415994739,4cyclictest9-21ksoftirqd/000:59:470
177391460,1ptp4l401ktimersoftd/300:52:543
16415994536,5cyclictest9-21ksoftirqd/021:29:440
16415994536,5cyclictest9-21ksoftirqd/021:29:440
177391440,0ptp4l401ktimersoftd/322:55:123
16415994132,5cyclictest9-21ksoftirqd/000:49:490
177391400,1ptp4l401ktimersoftd/323:25:213
177391400,1ptp4l401ktimersoftd/301:10:053
177391390,1ptp4l401ktimersoftd/323:03:263
16429993928,6cyclictest41-21ksoftirqd/320:54:423
177391380,1ptp4l401ktimersoftd/323:36:323
177391380,1ptp4l401ktimersoftd/322:26:273
177391380,1ptp4l401ktimersoftd/301:20:163
177391380,1ptp4l401ktimersoftd/300:56:373
177391380,1ptp4l401ktimersoftd/300:36:073
177391380,1ptp4l401ktimersoftd/300:33:153
177391380,1ptp4l401ktimersoftd/300:02:123
177391380,10ptp4l401ktimersoftd/322:22:023
177391380,0ptp4l401ktimersoftd/300:12:423
177391370,1ptp4l401ktimersoftd/323:10:413
177391370,1ptp4l401ktimersoftd/323:10:413
177391370,1ptp4l401ktimersoftd/323:06:423
177391370,1ptp4l401ktimersoftd/322:46:593
177391370,1ptp4l401ktimersoftd/322:19:083
177391370,1ptp4l401ktimersoftd/322:13:333
177391370,1ptp4l401ktimersoftd/321:16:203
177391370,1ptp4l401ktimersoftd/301:38:163
177391370,1ptp4l401ktimersoftd/301:15:543
177391370,1ptp4l401ktimersoftd/300:59:533
177391370,1ptp4l401ktimersoftd/300:59:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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