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2025-07-04 - 12:20
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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 50 highest latencies:
System rack0slot7.osadl.org (updated Fri Jul 04, 2025 00:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14204619942116,404cyclictest0-21swapper/219:17:238
14204749941710,406cyclictest0-21swapper/1519:14:237
142046799407404,3cyclictest1344735-21kworker/8:1+events19:17:5614
142046799407404,3cyclictest1344735-21kworker/8:1+events19:13:5014
142046399398398,0cyclictest0-21swapper/419:16:0010
142046899395393,2cyclictest1438311-21kworker/9:2+events19:15:2315
142046899389387,2cyclictest1012437-21kworker/9:0+events19:13:2115
142046099388386,2cyclictest0-21swapper/119:15:121
142047499364364,0cyclictest0-21swapper/1519:15:597
142046399356353,2cyclictest4183904-21IPC10
142047199349346,2cyclictest1028887-21kworker/u64:5+events_unbound19:16:004
142046099347345,2cyclictest0-21swapper/119:13:211
142046699346343,2cyclictest222867-21kworker/7:0+events19:14:2313
14204619933223,308cyclictest0-21swapper/219:14:518
142047399316316,0cyclictest0-21swapper/1419:15:596
142047099308307,1cyclictest27650irq/126-ahci[0000:00:17.0]19:16:003
142047199303301,2cyclictest9677-21gnome-shell19:12:594
142046299300299,1cyclictest0-21swapper/319:19:239
142046999298295,3cyclictest1439188-21kworker/10:0+pm19:17:122
142045899297295,2cyclictest0-21swapper/019:13:400
142046699295293,2cyclictest3829695-21Isolated17:40:0913
142046999294293,1cyclictest1344742-21kworker/10:2+events19:14:512
142046599292291,1cyclictest973169-21kworker/6:1+events19:18:2412
142045899290288,2cyclictest0-21swapper/019:17:560
142047099285279,5cyclictest4115095-21Renderer19:14:283
142047499271269,1cyclictest0-21swapper/1519:20:077
142047399269269,0cyclictest0-21swapper/1419:13:496
142047399221220,0cyclictest0-21swapper/1419:20:076
142046299220219,1cyclictest0-21swapper/319:14:289
142046499207206,1cyclictest0-21swapper/519:15:2811
142046499197193,3cyclictest9400-21Xorg19:20:0011
142046499190188,2cyclictest0-21swapper/519:13:5911
142047299186181,4cyclictest4115095-21Renderer19:15:285
142046599175171,3cyclictest9400-21Xorg19:14:0012
14195762174153,14sleep90-21swapper/919:07:3215
142047299169168,1cyclictest0-21swapper/1319:20:005
142045899169165,3cyclictest9400-21Xorg19:20:070
142047299167163,3cyclictest9677-21gnome-shell19:13:595
142046799155155,0cyclictest0-21swapper/819:20:0714
14194002144125,12sleep120-21swapper/1219:06:154
232374221370,0sleep00-21swapper/023:08:530
14194912114112,1sleep50-21swapper/519:06:5611
1419655211176,31sleep150-21swapper/1519:08:107
14193062103100,1sleep60-21swapper/619:05:3712
1420460999235,44cyclictest0-21swapper/121:38:521
142047399830,9cyclictest0-21swapper/1421:39:576
141948628280,1sleep10-21swapper/119:06:521
1420462997849,29cyclictest0-21swapper/321:38:529
1420472997521,27cyclictest0-21swapper/1321:42:475
1420465997372,1cyclictest9400-21Xorg21:39:5712
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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