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2026-05-07 - 06:42
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rackdslot4.osadl.org (updated Thu May 07, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207222205170,23sleep30-21swapper/319:06:383
207242204170,22sleep00-21swapper/019:06:390
208752202167,23sleep20-21swapper/219:08:382
209062201167,23sleep10-21swapper/119:09:011
21278996228,4cyclictest41-21ksoftirqd/322:45:183
21278996228,4cyclictest41-21ksoftirqd/322:45:183
21278996028,7cyclictest41-21ksoftirqd/320:30:203
21278996028,7cyclictest41-21ksoftirqd/319:40:133
21278996027,7cyclictest41-21ksoftirqd/320:10:173
21278996026,7cyclictest41-21ksoftirqd/323:55:243
21278996026,7cyclictest41-21ksoftirqd/323:55:243
21278995931,4cyclictest41-21ksoftirqd/319:10:253
21278995926,7cyclictest41-21ksoftirqd/323:15:233
21278995925,4cyclictest41-21ksoftirqd/300:05:233
21278995828,4cyclictest41-21ksoftirqd/321:50:183
21278995828,4cyclictest41-21ksoftirqd/321:50:183
21278995822,4cyclictest41-21ksoftirqd/320:50:183
21278995726,7cyclictest41-21ksoftirqd/323:50:193
21278995627,4cyclictest41-21ksoftirqd/300:30:243
21278995624,4cyclictest41-21ksoftirqd/323:20:153
21278995525,7cyclictest41-21ksoftirqd/322:05:203
21278995522,4cyclictest41-21ksoftirqd/322:25:143
21278995427,9cyclictest41-21ksoftirqd/319:20:253
2127899533,6cyclictest41-21ksoftirqd/321:05:243
21278995327,9cyclictest41-21ksoftirqd/320:00:163
21278995327,10cyclictest41-21ksoftirqd/323:35:173
21278995326,9cyclictest41-21ksoftirqd/322:10:133
21278995326,4cyclictest41-21ksoftirqd/321:15:133
21278995322,4cyclictest41-21ksoftirqd/323:45:233
309852520,2sleep30-21swapper/319:30:003
2127899525,5cyclictest41-21ksoftirqd/321:40:003
138491520,1ptp4l27801-21ls23:40:243
138491510,0ptp4l391rcuc/322:35:543
138491510,0ptp4l391rcuc/320:39:103
138491510,0ptp4l391rcuc/320:39:093
2127899503,6cyclictest41-21ksoftirqd/300:16:163
21278995021,9cyclictest41-21ksoftirqd/323:30:163
21275994942,4cyclictest5906-21cron00:05:010
138491490,0ptp4l391rcuc/320:57:573
297282480,2sleep00-21swapper/022:40:210
2127899484,8cyclictest41-21ksoftirqd/321:40:133
2127899482,5cyclictest41-21ksoftirqd/321:00:163
21278994823,10cyclictest41-21ksoftirqd/319:45:163
2127899474,9cyclictest41-21ksoftirqd/322:00:143
2127899466,6cyclictest41-21ksoftirqd/321:15:003
21278994629,9cyclictest41-21ksoftirqd/300:10:233
21278994629,7cyclictest41-21ksoftirqd/319:35:183
2127899462,6cyclictest41-21ksoftirqd/321:45:123
2127899461,7cyclictest41-21ksoftirqd/323:08:263
2127899460,7cyclictest401ktimersoftd/323:15:013
2127899453,5cyclictest41-21ksoftirqd/300:29:263
2127899453,5cyclictest41-21ksoftirqd/300:00:223
21278994519,8cyclictest41-21ksoftirqd/321:58:383
2127899451,5cyclictest0-21swapper/320:25:133
135191450,8getstats2127899cyclictest00:38:353
135191450,8getstats2127899cyclictest00:38:353
2127899444,10cyclictest41-21ksoftirqd/321:25:243
21278994429,7cyclictest41-21ksoftirqd/300:20:233
2127899442,6cyclictest41-21ksoftirqd/320:00:003
2127899433,6cyclictest41-21ksoftirqd/320:40:523
2127899432,6cyclictest41-21ksoftirqd/321:21:123
2127899432,6cyclictest41-21ksoftirqd/320:24:593
2127899432,6cyclictest41-21ksoftirqd/319:51:413
2127899431,6cyclictest41-21ksoftirqd/322:52:223
2127899423,5cyclictest41-21ksoftirqd/322:31:163
21278994227,7cyclictest41-21ksoftirqd/322:15:253
2127899422,6cyclictest41-21ksoftirqd/322:44:443
2127899422,5cyclictest41-21ksoftirqd/320:48:543
2127899422,5cyclictest41-21ksoftirqd/320:08:183
2127899421,5cyclictest41-21ksoftirqd/323:00:213
21278994127,6cyclictest41-21ksoftirqd/319:30:233
21278994126,7cyclictest41-21ksoftirqd/321:30:143
2127899402,5cyclictest41-21ksoftirqd/322:59:353
21276994035,3cyclictest25-21ksoftirqd/122:30:001
2127899394,10cyclictest41-21ksoftirqd/323:25:153
21277993918,18cyclictest33-21ksoftirqd/219:26:062
21278993833,3cyclictest41-21ksoftirqd/322:20:243
21277993829,6cyclictest33-21ksoftirqd/220:05:372
21276993831,4cyclictest25-21ksoftirqd/121:01:071
2127899371,7cyclictest41-21ksoftirqd/320:15:263
21277993731,4cyclictest33-21ksoftirqd/222:08:012
21276993730,5cyclictest25-21ksoftirqd/120:16:281
21276993730,5cyclictest25-21ksoftirqd/119:15:421
2127699370,1cyclictest0-21swapper/121:25:331
21275993731,4cyclictest9-21ksoftirqd/019:12:360
21275993730,5cyclictest9-21ksoftirqd/023:30:030
2127899361,5cyclictest41-21ksoftirqd/319:19:443
21276993631,3cyclictest25-21ksoftirqd/122:37:091
21276993630,4cyclictest25-21ksoftirqd/119:58:141
21276993630,4cyclictest25-21ksoftirqd/119:54:341
21276993629,5cyclictest25-21ksoftirqd/121:31:421
2127699360,1cyclictest0-21swapper/119:25:031
21275993631,3cyclictest9-21ksoftirqd/023:41:190
21275993630,4cyclictest9-21ksoftirqd/022:19:110
21275993629,5cyclictest9-21ksoftirqd/023:23:250
21277993530,3cyclictest33-21ksoftirqd/222:19:132
21277993529,4cyclictest33-21ksoftirqd/223:01:332
21277993529,4cyclictest33-21ksoftirqd/222:59:282
21277993529,4cyclictest33-21ksoftirqd/222:52:502
21277993529,4cyclictest33-21ksoftirqd/222:34:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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