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2025-12-04 - 00:01
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Wed Dec 03, 2025 12:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2344006997416,39cyclictest2428874-21munin-run09:40:013
2344006997416,39cyclictest2428874-21munin-run09:40:013
2344006997333,19cyclictest0-21swapper/310:24:373
2344006997313,21cyclictest1088-21runrttasks07:49:103
2344006997131,19cyclictest0-21swapper/311:45:413
2344006996912,38cyclictest511ktimers/312:29:523
2344006996830,18cyclictest0-21swapper/309:54:333
2344005996748,19cyclictest0-21swapper/212:35:172
2344006996617,39cyclictest876-21mta-sts-daemon09:16:333
234400699656,40cyclictest2443244-21/usr/sbin/munin10:05:203
234400699646,39cyclictest2431935-21grep09:45:133
234400699646,39cyclictest2431935-21grep09:45:133
234400699635,19cyclictest0-21swapper/307:53:073
2344006996059,1cyclictest872-21mta-sts-daemon09:14:023
234400999591,19cyclictest0-21swapper/610:15:216
234400699580,58cyclictest2498004-21awk11:40:173
234400699580,39cyclictest2473765-21taskset10:57:433
234400699580,39cyclictest2426056-21sed09:35:013
2344006995638,18cyclictest511ktimers/307:57:133
2344006995638,18cyclictest511ktimers/307:37:223
2344006995637,19cyclictest0-21swapper/312:39:203
2344006995514,4cyclictest0-21swapper/308:45:123
2344006995436,0cyclictest0-21swapper/308:50:433
2344006995414,39cyclictest2526725-21kernelversion12:30:173
2344006995414,39cyclictest2381475-21cstates08:15:133
2344006995317,2cyclictest877-21mta-sts-daemon12:04:263
2344006995314,3cyclictest0-21swapper/310:17:213
2344006995314,39cyclictest873-21mta-sts-daemon07:44:573
2344006995314,39cyclictest2344019-21munin-run07:10:013
2344006995314,39cyclictest0-21swapper/309:40:163
2344006995314,39cyclictest0-21swapper/308:22:233
2344006995314,2cyclictest0-21swapper/308:01:423
2344006995314,19cyclictest0-21swapper/310:12:033
2344004995315,38cyclictest0-21swapper/109:35:191
2344004995315,38cyclictest0-21swapper/109:35:181
2344009995214,19cyclictest0-21swapper/608:35:166
2344008995233,19cyclictest0-21swapper/511:30:175
2344006995214,3cyclictest872-21mta-sts-daemon08:43:253
2344006995213,39cyclictest0-21swapper/310:38:593
2344006995213,19cyclictest0-21swapper/309:06:173
2344010995112,39cyclictest2463171-21kworker/u32:1+events_unbound11:55:177
2344009995113,19cyclictest0-21swapper/609:05:156
234400699519,39cyclictest2477065-21sed11:05:023
2344006995113,2cyclictest0-21swapper/308:59:453
2344006995113,19cyclictest2389000-21chrt08:28:443
2344006995112,39cyclictest2421833-21ntpq09:25:193
2344006995112,39cyclictest0-21swapper/308:33:233
2344006995112,19cyclictest2379606-21ntpq08:10:203
2344006995112,19cyclictest0-21swapper/309:56:313
2344005995132,19cyclictest0-21swapper/211:50:162
2344004995113,19cyclictest0-21swapper/111:00:161
2344004995113,19cyclictest0-21swapper/109:30:171
2344006995031,19cyclictest0-21swapper/309:04:583
2344006995011,39cyclictest0-21swapper/311:35:203
2344006995011,39cyclictest0-21swapper/310:01:363
2344006995011,39cyclictest0-21swapper/310:01:353
2344005995011,20cyclictest0-21swapper/208:50:172
2344010994930,19cyclictest0-21swapper/710:50:217
2344006994910,39cyclictest0-21swapper/312:21:353
2344006994910,39cyclictest0-21swapper/311:29:483
2344006994910,39cyclictest0-21swapper/311:10:553
2344006994910,39cyclictest0-21swapper/310:46:313
2344006994910,39cyclictest0-21swapper/308:08:593
2344006994910,39cyclictest0-21swapper/307:30:473
234400699489,39cyclictest0-21swapper/311:23:313
234400699489,39cyclictest0-21swapper/307:26:523
234400699486,4cyclictest0-21swapper/307:17:283
2344005994830,0cyclictest0-21swapper/207:50:162
234400999479,19cyclictest0-21swapper/608:20:186
234400699478,39cyclictest0-21swapper/312:09:313
234400699478,39cyclictest0-21swapper/311:17:443
234400699478,39cyclictest0-21swapper/310:30:163
234400699478,39cyclictest0-21swapper/308:35:443
234400699468,0cyclictest0-21swapper/312:19:113
234400699467,39cyclictest0-21swapper/310:44:113
234400699467,39cyclictest0-21swapper/309:20:283
234400699467,39cyclictest0-21swapper/307:12:363
234400699467,21cyclictest2517140-21munin-run12:15:013
2344006994628,18cyclictest0-21swapper/310:50:203
234401099457,19cyclictest0-21swapper/708:30:237
234401099455,39cyclictest0-21swapper/707:55:207
234400999457,19cyclictest0-21swapper/612:35:186
234400899457,19cyclictest0-21swapper/508:55:285
234400699445,39cyclictest0-21swapper/310:29:393
234400499446,19cyclictest0-21swapper/109:15:181
234401099422,39cyclictest0-21swapper/710:45:177
2344010994121,19cyclictest0-21swapper/709:00:127
234400599412,39cyclictest0-21swapper/209:50:162
2344008994040,0cyclictest0-21swapper/508:25:115
234400599402,19cyclictest0-21swapper/209:35:192
234400599402,19cyclictest0-21swapper/209:35:182
2344005994021,19cyclictest0-21swapper/209:15:172
234400599401,39cyclictest0-21swapper/210:10:202
2344004994021,19cyclictest331ktimers/110:50:201
234400899391,19cyclictest0-21swapper/509:45:175
234400899391,19cyclictest0-21swapper/509:45:165
234400699393,0cyclictest0-21swapper/307:22:073
234400599391,19cyclictest0-21swapper/209:30:172
234400599390,19cyclictest0-21swapper/209:40:252
2344010993819,19cyclictest0-21swapper/712:06:267
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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