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2023-05-31 - 11:22

x86 Intel Core i9-9900K @3600 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #0, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Up99 -i200 -h400 -q done
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 rack0slot8.osadl.org (updated Wed May 31, 2023 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
398231199400,39cyclictest38669-21meminfo23:45:244
398231299370,36cyclictest4160452-21meminfo22:25:325
398231299361,34cyclictest5198-21Xorg21:18:255
398231299331,21cyclictest1602699-21Isolated14:44:255
398231599320,11cyclictest0-21swapper/1522:59:527
398230899320,31cyclictest4160455-21meminfo22:25:3215
3982311993121,7cyclictest1602699-21Isolated14:44:254
398231099310,31cyclictest4133741-21meminfo21:55:493
398229999310,30cyclictest4106817-21meminfo21:25:329
398231299301,23cyclictest0-21swapper/1322:48:335
398231299300,1cyclictest0-21swapper/1323:26:085
398230699300,29cyclictest56786-21meminfo00:05:2614
3982301993021,3cyclictest2100046-21firefox19:18:1311
398230099302,13cyclictest1602699-21Isolated14:44:2510
398229899304,13cyclictest0-21swapper/223:50:418
398231099290,3cyclictest0-21swapper/1122:43:333
3982301992925,3cyclictest136750irq/130-enp1s0-22:41:0211
398230099294,25cyclictest0-21swapper/422:58:3310
398230099294,25cyclictest0-21swapper/419:40:5110
398230099294,25cyclictest0-21swapper/419:18:5310
3982300992925,2cyclictest2100295-21WebExtensions00:18:3910
398231299281,3cyclictest1602699-21Isolated14:44:255
398231299280,27cyclictest47783-21meminfo23:55:365
3982311992825,1cyclictest1602699-21Isolated14:44:254
398231199280,2cyclictest1602699-21Isolated14:44:254
398231199280,28cyclictest75146-21meminfo00:25:284
398231199280,28cyclictest34317-21meminfo23:40:244
398231099280,28cyclictest43021-21meminfo23:50:263
398231099280,28cyclictest4026270-21meminfo19:55:313
398230699280,28cyclictest3999453-21meminfo19:25:3314
398230099283,25cyclictest0-21swapper/421:52:3910
398230099283,25cyclictest0-21swapper/421:08:4410
398230099281,2cyclictest5198-21Xorg00:13:3910
398230099280,28cyclictest7348-21meminfo23:10:3210
3982298992823,4cyclictest0-21swapper/220:29:108
398229799280,27cyclictest4093342-21meminfo21:10:261
398229399280,28cyclictest3988051-21meminfo19:15:030
398231199270,27cyclictest66023-21meminfo00:15:284
398231199270,27cyclictest20959-21meminfo23:25:294
398231099270,26cyclictest70397-21meminfo00:20:273
398230999273,21cyclictest1602699-21Isolated14:44:252
398230999270,27cyclictest4173834-21meminfo22:40:282
3982308992722,5cyclictest0-21swapper/920:29:1015
398230899270,27cyclictest4187288-21meminfo22:55:2915
398230899270,25cyclictest0-21swapper/919:27:0715
3982306992721,3cyclictest1675316-21StyleThread#021:43:2714
398230699270,27cyclictest11857-21meminfo23:15:2814
3982303992724,1cyclictest727-21systemd-journal23:13:3412
3982303992722,3cyclictest1602699-21Isolated14:44:2512
398229899270,27cyclictest4012808-21meminfo19:40:298
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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