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2022-01-26 - 12:08

Intel(R) Celeron(R) CPU N3350 @ 1.10GHz, Linux 5.10.90-rt60 (Profile)

Latency plot of system in rack #c, slot #4
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 -h400 -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 rackcslot4.osadl.org (updated Wed Jan 26, 2022 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34649399510503,5cyclictest1999-21gnome-shell21:51:580
34649399460455,3cyclictest1999-21gnome-shell00:37:590
34649499454451,2cyclictest393638-21turbostat21:09:551
34649499451448,2cyclictest524937-21turbostat00:09:551
34649499444441,2cyclictest418554-21turbostat21:44:561
34649499432429,2cyclictest510354-21turbostat23:49:551
34649499411405,4cyclictest1999-21gnome-shell22:29:581
34649499400392,6cyclictest1674-21Xorg20:50:001
34649499371366,3cyclictest1674-21Xorg20:44:591
34649499363361,1cyclictest351007-21turbostat19:24:561
34649499359350,4cyclictest365434-21turbostat19:55:011
34649499341336,4cyclictest1999-21gnome-shell21:33:581
34649499340331,7cyclictest1999-21gnome-shell21:45:581
34649499337334,2cyclictest363069-21turbostat19:50:001
34649499330304,24cyclictest1674-21Xorg19:38:001
34649499327323,3cyclictest1999-21gnome-shell23:00:581
34649499326322,3cyclictest1999-21gnome-shell22:11:581
34649399325321,3cyclictest1999-21gnome-shell21:14:580
34649499323319,3cyclictest1999-21gnome-shell22:21:591
34649499320316,3cyclictest1999-21gnome-shell22:37:591
34649499318315,2cyclictest510354-21turbostat23:45:001
34649499315309,4cyclictest1674-21Xorg21:59:001
34649399311307,3cyclictest342003-21kworker/u8:219:25:000
34649399310306,3cyclictest373423-21kworker/u8:420:22:000
34649399309306,2cyclictest409648-21kworker/u8:422:26:010
34649399309306,2cyclictest409648-21kworker/u8:421:48:590
34649399309306,2cyclictest342003-21kworker/u8:221:35:580
34649399309305,3cyclictest409648-21kworker/u8:421:45:000
34649399308305,2cyclictest373423-21kworker/u8:420:38:000
34649399307304,2cyclictest498330-21kworker/u8:100:29:590
34649399307304,2cyclictest424646-21kworker/u8:022:17:000
34649399297293,3cyclictest469299-21kworker/u8:423:19:580
34649399280251,27cyclictest1999-21gnome-shell23:40:580
34649399278251,25cyclictest1999-21gnome-shell00:30:590
34649399278251,25cyclictest1999-21gnome-shell00:10:580
34649399278250,26cyclictest1999-21gnome-shell19:41:590
34649399277249,26cyclictest1999-21gnome-shell21:08:590
34649399277249,25cyclictest1999-21gnome-shell23:35:580
34649399276247,27cyclictest1999-21gnome-shell20:12:590
34649399275247,26cyclictest1999-21gnome-shell19:26:590
34649399275247,26cyclictest1999-21gnome-shell19:26:590
34649399274249,23cyclictest1999-21gnome-shell20:07:590
34649399274248,24cyclictest1999-21gnome-shell20:44:590
34649399274247,25cyclictest1999-21gnome-shell23:50:580
34649399273248,23cyclictest1999-21gnome-shell19:11:590
34649399273246,25cyclictest1999-21gnome-shell20:02:590
34649399272247,23cyclictest1999-21gnome-shell20:30:580
34649399270244,24cyclictest1999-21gnome-shell20:55:590
34649399270243,25cyclictest1999-21gnome-shell23:48:580
34649399270243,25cyclictest1999-21gnome-shell23:12:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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