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2025-12-07 - 12:55
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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 rack0slot5.osadl.org (updated Sun Dec 07, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13514819955013,536cyclictest0-21swapper/923:58:1915
135148199513483,30cyclictest0-21swapper/920:11:1915
135145299511510,1cyclictest1573934-21kworker/1:2+i915-unordered23:58:191
135150899510509,1cyclictest0-21swapper/1522:43:197
1351493995072,27cyclictest0-21swapper/1123:06:193
13514939950138,462cyclictest0-21swapper/1120:11:193
135147199497496,1cyclictest0-21swapper/620:55:1912
135147199486485,1cyclictest1520441-21kworker/6:2+i915-unordered23:11:1912
135147199486485,1cyclictest1520441-21kworker/6:2+i915-unordered23:11:1912
135148199482482,0cyclictest1491706-21kworker/9:2+i915-unordered21:55:1915
135145299476475,1cyclictest1405494-21kworker/1:1+i915-unordered20:11:191
13515009946920,30cyclictest0-21swapper/1322:39:415
135146099466465,1cyclictest77250irq/159-i91523:06:199
1351479994630,3cyclictest0-21swapper/823:23:5214
1351479994630,3cyclictest0-21swapper/823:23:5214
13514609946214,446cyclictest0-21swapper/322:34:039
135146099459458,1cyclictest77250irq/159-i91520:11:199
135150499458456,2cyclictest0-21swapper/1423:05:196
135147199456456,0cyclictest0-21swapper/620:33:1912
135147199456456,0cyclictest0-21swapper/620:33:1912
1351460994565,447cyclictest0-21swapper/300:09:429
135146099456456,0cyclictest77250irq/159-i91521:55:199
1351452994548,30cyclictest0-21swapper/123:31:191
1351452994535,446cyclictest0-21swapper/123:45:191
1351508994513,29cyclictest0-21swapper/1522:18:407
135147199451449,2cyclictest1552001-21kworker/6:0+i915-unordered23:05:1912
135148199449446,2cyclictest1461740-21kworker/u64:3+events_unbound21:25:1915
135145699449447,2cyclictest1524666-21kworker/2:1+pm23:16:138
135145699449447,2cyclictest1524666-21kworker/2:1+pm23:16:138
13515049944823,30cyclictest0-21swapper/1419:34:036
1351500994470,27cyclictest0-21swapper/1300:25:435
13515049944623,29cyclictest0-21swapper/1419:45:426
1351489994460,446cyclictest0-21swapper/1023:16:132
1351489994460,446cyclictest0-21swapper/1023:16:132
13514819944625,421cyclictest0-21swapper/923:51:4315
13515049944522,29cyclictest0-21swapper/1420:27:426
13515049944522,29cyclictest0-21swapper/1420:27:426
13514819944523,421cyclictest0-21swapper/923:46:4015
135145299444444,0cyclictest0-21swapper/121:55:191
13514609944324,419cyclictest0-21swapper/323:32:029
13515009944223,419cyclictest0-21swapper/1322:45:055
13514759944222,420cyclictest0-21swapper/723:32:4113
13514759944219,422cyclictest0-21swapper/722:58:4113
13514609944225,414cyclictest0-21swapper/320:45:199
13515049944122,418cyclictest0-21swapper/1423:15:416
13515049944122,418cyclictest0-21swapper/1423:15:416
13514759944118,419cyclictest0-21swapper/721:43:0413
13514609944122,419cyclictest0-21swapper/321:29:429
13514529944121,419cyclictest0-21swapper/120:02:191
13515049944022,416cyclictest0-21swapper/1420:58:426
13514819944020,419cyclictest0-21swapper/923:33:4015
13514819944020,419cyclictest0-21swapper/900:14:0415
13514759944024,415cyclictest0-21swapper/721:50:0413
13514759944019,420cyclictest0-21swapper/723:17:0213
13514759944019,420cyclictest0-21swapper/723:17:0213
13514499944021,419cyclictest0-21swapper/022:09:410
13515049943923,414cyclictest0-21swapper/1422:30:056
13515049943922,415cyclictest0-21swapper/1420:45:046
13514719943921,415cyclictest0-21swapper/600:31:1912
13514609943918,420cyclictest0-21swapper/321:01:039
13514609943918,420cyclictest0-21swapper/300:01:039
13515049943822,415cyclictest0-21swapper/1420:53:406
13515049943822,414cyclictest0-21swapper/1421:10:426
13515049943821,416cyclictest0-21swapper/1423:23:416
13515049943821,416cyclictest0-21swapper/1423:23:416
13514759943817,420cyclictest0-21swapper/722:41:4013
13514719943821,417cyclictest0-21swapper/620:42:1912
13515009943718,417cyclictest0-21swapper/1323:15:025
13515009943718,417cyclictest0-21swapper/1323:15:025
13514679943719,1cyclictest0-21swapper/522:20:4311
13515009943616,419cyclictest0-21swapper/1320:59:435
135148199436432,3cyclictest3682525-21snmpd23:16:1315
135148199436432,3cyclictest3682525-21snmpd23:16:1315
13514759943614,421cyclictest0-21swapper/723:02:4013
13514759943614,421cyclictest0-21swapper/722:50:4113
13515089943516,418cyclictest0-21swapper/1522:30:417
13514759943513,421cyclictest0-21swapper/722:32:0313
13514499943520,414cyclictest0-21swapper/021:42:420
13514759943410,423cyclictest0-21swapper/719:38:4113
135147199434432,2cyclictest1376712-21kworker/6:0+i915-unordered19:43:1912
13514719943417,416cyclictest0-21swapper/622:53:1912
13514719943413,420cyclictest0-21swapper/620:49:4212
135145299434433,1cyclictest1519206-21kworker/u64:1+events_unbound00:34:041
1351449994349,29cyclictest0-21swapper/000:19:050
13515089943312,420cyclictest0-21swapper/1522:06:427
13514759943313,419cyclictest0-21swapper/721:25:4213
13514759943312,420cyclictest0-21swapper/723:13:0113
13514759943312,420cyclictest0-21swapper/723:13:0113
135146099433432,1cyclictest77250irq/159-i91519:43:199
13514609943310,29cyclictest0-21swapper/319:37:199
13514939943210,420cyclictest0-21swapper/1121:08:043
13514609943214,416cyclictest0-21swapper/323:16:419
13514609943214,416cyclictest0-21swapper/323:16:419
13514529943215,416cyclictest0-21swapper/123:01:191
1351481994316,30cyclictest0-21swapper/922:03:1915
1351493994308,421cyclictest0-21swapper/1122:02:413
1351493994307,422cyclictest0-21swapper/1100:21:403
1351508994298,418cyclictest0-21swapper/1523:59:407
13515089942912,416cyclictest0-21swapper/1521:22:037
135148999429425,3cyclictest1454844-21kworker/10:0+pm21:31:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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