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2026-08-04 - 13:12
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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 rackbslot6.osadl.org (updated Tue Aug 04, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3214121610,1sleep20-21swapper/201:19:372
106891980,6ptp4l16339-21kworker/3:021:16:083
170982924,24sleep017219-21hddtemp_smartct21:15:000
106891760,14ptp4l401ktimersoftd/300:19:153
116432670,2sleep20-21swapper/202:36:342
106891660,1ptp4l401ktimersoftd/301:02:303
305362640,4sleep11889699cyclictest22:49:571
248442640,4sleep1241ktimersoftd/122:35:111
1777726330,19sleep117848-21phc2sys21:15:051
18903996225,6cyclictest33-21ksoftirqd/202:45:062
86572610,2sleep30-21swapper/323:48:403
187702604,10sleep20-21swapper/221:19:342
106891600,1ptp4l401ktimersoftd/300:32:173
60322580,5sleep36034-21unixbench_multi21:55:273
215102580,4sleep341-21ksoftirqd/302:46:263
106891570,1ptp4l401ktimersoftd/301:24:583
106891550,1ptp4l401ktimersoftd/322:16:093
18903995432,3cyclictest33-21ksoftirqd/201:25:042
18903995423,6cyclictest33-21ksoftirqd/202:24:502
18903995423,6cyclictest33-21ksoftirqd/202:24:502
18903995321,11cyclictest33-21ksoftirqd/202:20:112
18903995321,11cyclictest33-21ksoftirqd/202:20:112
18903995243,4cyclictest33-21ksoftirqd/200:40:012
18903995224,10cyclictest33-21ksoftirqd/223:55:182
18903995222,6cyclictest33-21ksoftirqd/202:40:112
1890399521,9cyclictest4119-21apt21:54:432
84482510,2sleep28449-21switchtime02:00:162
18903995122,10cyclictest33-21ksoftirqd/202:10:192
178142510,2sleep10-21swapper/123:57:381
18903994921,6cyclictest33-21ksoftirqd/202:34:492
18903994921,10cyclictest33-21ksoftirqd/202:15:122
18903994920,5cyclictest33-21ksoftirqd/221:55:162
18903994920,5cyclictest33-21ksoftirqd/201:20:112
18903994920,10cyclictest33-21ksoftirqd/221:34:582
18903994920,10cyclictest33-21ksoftirqd/201:45:052
1890399487,3cyclictest33-21ksoftirqd/221:34:432
1890399483,6cyclictest33-21ksoftirqd/223:44:462
18903994821,6cyclictest33-21ksoftirqd/200:24:462
18903994820,5cyclictest33-21ksoftirqd/221:19:572
18903994820,5cyclictest33-21ksoftirqd/201:04:472
18903994819,5cyclictest33-21ksoftirqd/201:10:062
18903994819,10cyclictest33-21ksoftirqd/223:35:142
18903994818,7cyclictest33-21ksoftirqd/200:49:472
59182470,2sleep20-21swapper/201:58:482
256082470,1sleep30-21swapper/323:32:223
18903994734,3cyclictest33-21ksoftirqd/202:09:482
18903994732,3cyclictest33-21ksoftirqd/223:27:252
18903994719,6cyclictest33-21ksoftirqd/200:35:172
18903994719,6cyclictest33-21ksoftirqd/200:35:172
18903994719,16cyclictest33-21ksoftirqd/222:30:012
1890399470,6cyclictest33-21ksoftirqd/200:05:022
1890399464,6cyclictest33-21ksoftirqd/200:00:022
18903994634,3cyclictest33-21ksoftirqd/200:34:472
18903994624,9cyclictest33-21ksoftirqd/200:25:062
18903994619,6cyclictest33-21ksoftirqd/221:59:562
18903994619,10cyclictest33-21ksoftirqd/221:40:022
18903994618,11cyclictest33-21ksoftirqd/201:40:182
18903994618,10cyclictest33-21ksoftirqd/223:19:582
18903994618,10cyclictest33-21ksoftirqd/221:44:592
18903994617,10cyclictest33-21ksoftirqd/200:54:552
106891460,1ptp4l401ktimersoftd/301:13:163
1890399456,3cyclictest33-21ksoftirqd/200:10:072
1890399455,7cyclictest33-21ksoftirqd/223:05:082
1890399455,7cyclictest33-21ksoftirqd/222:35:042
1890399455,6cyclictest33-21ksoftirqd/223:50:002
1890399454,6cyclictest33-21ksoftirqd/201:30:182
18903994521,4cyclictest33-21ksoftirqd/201:09:312
18903994520,4cyclictest33-21ksoftirqd/223:30:082
18903994517,10cyclictest33-21ksoftirqd/222:10:142
18903994517,10cyclictest33-21ksoftirqd/200:15:122
18903994516,8cyclictest33-21ksoftirqd/201:39:022
18896994538,4cyclictest2746-21sh22:59:441
1890399442,5cyclictest33-21ksoftirqd/222:25:142
18903994417,9cyclictest33-21ksoftirqd/223:10:032
18903994417,11cyclictest33-21ksoftirqd/222:19:592
1890399436,8cyclictest33-21ksoftirqd/222:45:032
1890399436,8cyclictest33-21ksoftirqd/222:45:032
1890399434,7cyclictest33-21ksoftirqd/223:00:032
18903994327,9cyclictest33-21ksoftirqd/222:15:012
18903994315,10cyclictest33-21ksoftirqd/223:46:442
18903994314,10cyclictest33-21ksoftirqd/201:52:282
106891430,0ptp4l401ktimersoftd/301:58:333
1890399426,3cyclictest33-21ksoftirqd/222:40:012
18903994235,4cyclictest33-21ksoftirqd/222:54:492
18903994231,4cyclictest33-21ksoftirqd/222:04:562
18903994221,9cyclictest33-21ksoftirqd/223:14:592
1890399414,7cyclictest33-21ksoftirqd/221:29:422
18903994013,9cyclictest33-21ksoftirqd/200:52:042
1890399391,2cyclictest121rcu_preempt22:49:592
106891390,1ptp4l401ktimersoftd/323:50:243
106891390,1ptp4l401ktimersoftd/323:44:393
106891390,1ptp4l401ktimersoftd/323:22:183
106891390,1ptp4l401ktimersoftd/302:31:573
106891390,1ptp4l401ktimersoftd/301:15:213
106891390,1ptp4l401ktimersoftd/300:50:013
106891390,1ptp4l401ktimersoftd/300:20:333
106891380,1ptp4l401ktimersoftd/323:27:423
106891380,1ptp4l401ktimersoftd/302:42:263
106891380,1ptp4l401ktimersoftd/302:10:343
106891380,1ptp4l401ktimersoftd/302:06:403
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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