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2026-05-21 - 11:39
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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 Thu May 21, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911060,4ptp4l401ktimersoftd/320:38:123
244352690,2sleep00-21swapper/023:22:080
1957626949,9sleep00-21swapper/020:35:260
192262660,2sleep10-21swapper/123:48:591
85042640,1sleep30-21swapper/323:05:053
85042640,1sleep30-21swapper/323:05:053
84432630,4sleep0111rcuc/023:04:580
84432630,4sleep0111rcuc/023:04:580
224612620,4sleep21991799cyclictest23:53:382
209942610,2sleep20-21swapper/221:43:422
19917995945,6cyclictest33-21ksoftirqd/223:58:342
106891580,1ptp4l401ktimersoftd/322:13:323
106891580,1ptp4l401ktimersoftd/301:41:393
106891580,1ptp4l401ktimersoftd/300:49:523
106891570,1ptp4l401ktimersoftd/322:00:003
106891550,1ptp4l401ktimersoftd/323:46:553
298662540,2sleep30-21swapper/301:08:183
245922540,2sleep00-21swapper/000:28:410
40452530,2sleep30-21swapper/300:40:323
264032530,3sleep125-21ksoftirqd/122:50:171
19917994735,6cyclictest33-21ksoftirqd/221:18:292
106891470,1ptp4l401ktimersoftd/323:40:153
274932460,2sleep10-21swapper/100:31:431
19917994634,5cyclictest33-21ksoftirqd/221:48:322
197272464,30sleep20-21swapper/220:37:262
19917994532,6cyclictest33-21ksoftirqd/220:48:312
106891430,0ptp4l401ktimersoftd/322:48:213
106891410,1ptp4l401ktimersoftd/301:13:533
19917994033,4cyclictest33-21ksoftirqd/200:08:272
19917994029,5cyclictest33-21ksoftirqd/221:23:312
19917994029,4cyclictest33-21ksoftirqd/201:03:352
19917993928,4cyclictest33-21ksoftirqd/200:43:382
106891390,1ptp4l401ktimersoftd/323:49:553
106891390,1ptp4l401ktimersoftd/323:02:003
106891390,1ptp4l401ktimersoftd/301:59:343
106891390,1ptp4l401ktimersoftd/300:34:393
106891390,1ptp4l401ktimersoftd/300:29:253
106891390,1ptp4l401ktimersoftd/300:20:103
106891390,0ptp4l401ktimersoftd/300:15:133
106891380,1ptp4l401ktimersoftd/323:35:313
106891380,1ptp4l401ktimersoftd/323:11:153
106891380,1ptp4l401ktimersoftd/323:11:153
106891380,1ptp4l401ktimersoftd/322:54:343
106891380,1ptp4l401ktimersoftd/322:39:143
106891380,1ptp4l401ktimersoftd/302:06:123
106891380,1ptp4l401ktimersoftd/301:46:573
106891380,1ptp4l401ktimersoftd/301:27:063
106891380,1ptp4l401ktimersoftd/301:20:053
106891380,1ptp4l401ktimersoftd/300:56:433
106891380,1ptp4l401ktimersoftd/300:56:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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