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2021-01-26 - 05:30

Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz, Linux 5.10.1-rt20 (Profile)

Latency plot of system in rack #0, slot #6
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 -Sp99 -i200 -h200 -q
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 rack0slot6.osadl.org (updated Tue Jan 26, 2021 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
326065599397397,0cyclictest0-21swapper/422:18:5810
326070299362362,0cyclictest0-21swapper/1521:34:597
326068799362362,0cyclictest0-21swapper/1123:36:583
326068799362361,1cyclictest0-21swapper/1122:55:593
326068799361361,0cyclictest0-21swapper/1123:54:583
326068799361361,0cyclictest0-21swapper/1121:25:593
326068799361361,0cyclictest0-21swapper/1100:04:583
32595182344331,10sleep150-21swapper/1519:05:177
32595182344331,10sleep150-21swapper/1519:05:177
32598622338314,18sleep60-21swapper/619:07:1712
32598622338314,18sleep60-21swapper/619:07:1712
32603832335315,12sleep50-21swapper/519:09:5611
32603832335315,12sleep50-21swapper/519:09:5611
32596912334316,12sleep100-21swapper/1019:06:172
32596912334316,12sleep100-21swapper/1019:06:162
32598392320304,11sleep130-21swapper/1319:07:085
32598392320304,11sleep130-21swapper/1319:07:085
32588852316305,7sleep110-21swapper/1119:05:133
32588852316305,7sleep110-21swapper/1119:05:133
32597712315298,11sleep80-21swapper/819:06:4714
32597712315298,11sleep80-21swapper/819:06:4714
32597452315297,12sleep140-21swapper/1419:06:386
32597452315297,12sleep140-21swapper/1419:06:376
32598312312292,13sleep90-21swapper/919:07:0415
32598312312292,13sleep90-21swapper/919:07:0415
32598552305289,11sleep30-21swapper/319:07:159
32598552305289,11sleep30-21swapper/319:07:149
32598382301283,12sleep120-21swapper/1219:07:074
32598382301283,12sleep120-21swapper/1219:07:074
32597122298279,13sleep20-21swapper/219:06:258
32597122298279,13sleep20-21swapper/219:06:258
326067099285283,2cyclictest2053-21Xorg21:47:5914
326067099285283,2cyclictest2053-21Xorg21:47:5914
326068799284282,2cyclictest2053-21Xorg00:27:003
326068799284282,2cyclictest2053-21Xorg00:26:593
326067899284282,2cyclictest2053-21Xorg20:47:5915
326067099284282,2cyclictest2053-21Xorg21:41:0014
326067099284281,3cyclictest2053-21Xorg21:37:5914
326066499284282,2cyclictest2105-21gnome-shell20:51:5812
326069699283281,2cyclictest2053-21Xorg23:58:595
3260696992830,283cyclictest0-21swapper/1323:26:595
3260659992830,283cyclictest0-21swapper/519:33:5811
3260640992830,1cyclictest0-21swapper/022:40:590
326069199282279,3cyclictest2105-21gnome-shell23:43:594
326068299282280,2cyclictest2053-21Xorg19:15:592
326068299282280,2cyclictest2053-21Xorg19:15:592
326067099282280,2cyclictest2053-21Xorg21:51:0014
326067099282280,2cyclictest2053-21Xorg21:50:5914
3260670992820,282cyclictest0-21swapper/819:36:5914
3260644992820,282cyclictest0-21swapper/121:57:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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