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2025-05-09 - 05:54
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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 rackeslot8.osadl.org (updated Fri May 09, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
382096821050,2sleep00-21swapper/023:45:280
37345962350,1sleep00-21swapper/022:55:170
3410923992925,3cyclictest3474730-21sh20:00:012
3410921992825,2cyclictest3871939-21cron00:20:011
3410926992614,1cyclictest0-21swapper/322:45:213
3410926992413,1cyclictest0-21swapper/322:10:153
3410926992219,1cyclictest0-21swapper/300:05:003
3410926992118,1cyclictest0-21swapper/320:20:013
3410917992118,2cyclictest3577983-21idleruntime-cro21:20:010
3410917992114,5cyclictest0-21swapper/022:50:000
3410926992017,1cyclictest0-21swapper/322:05:003
3410926992017,1cyclictest0-21swapper/319:30:003
3410926992015,2cyclictest3757661-21sleep23:10:003
3410923992017,2cyclictest0-21swapper/223:15:012
3410921992017,2cyclictest0-21swapper/120:40:001
3410921992016,2cyclictest0-21swapper/122:00:001
3410917992017,2cyclictest0-21swapper/022:20:000
3410917992012,7cyclictest3681940-21grep22:20:190
34237572190,1chrt0-21swapper/319:15:193
3410923991916,2cyclictest0-21swapper/221:35:002
3410923991915,2cyclictest769-21runrttasks21:52:212
3410923991915,2cyclictest0-21swapper/223:10:002
3410921991915,3cyclictest3474796-21systemctl20:00:011
3410921991915,2cyclictest0-21swapper/122:45:011
3410921991915,2cyclictest0-21swapper/100:00:001
3410917991916,2cyclictest761-21cups-browsed23:25:000
3410917991916,2cyclictest500-21avahi-daemon19:50:010
3410917991916,2cyclictest3636687-21irqrtprio21:55:150
3410926991815,1cyclictest0-21swapper/300:30:013
3410923991815,2cyclictest3855715-21systemd-run00:10:012
3410923991815,2cyclictest3700978-21latency_hist22:35:002
3410923991815,2cyclictest3644029-21cpuspeed_turbos22:00:152
3410923991815,2cyclictest0-21swapper/222:20:012
3410923991814,3cyclictest3717120-21ls22:45:012
3410923991813,3cyclictest3620758-21kthreadcore21:45:192
3410921991815,2cyclictest3904770-21latency_hist00:40:001
3410921991815,2cyclictest3823073-21cron23:50:001
3410921991815,2cyclictest3651892-21apt-config22:05:001
3410921991815,2cyclictest3493566-21latency_hist20:15:001
3410921991815,2cyclictest0-21swapper/119:20:001
3410921991814,3cyclictest3853287-21timerandwakeup00:05:241
3410921991814,2cyclictest0-21swapper/123:45:001
3410921991814,2cyclictest0-21swapper/123:30:251
3410921991814,2cyclictest0-21swapper/120:30:001
3410921991813,4cyclictest3666082-21grep22:10:241
3410921991810,6cyclictest3561480-21systemd-journal21:15:011
3410917991815,2cyclictest0-21swapper/021:15:000
3410926991714,1cyclictest0-21swapper/322:30:013
3410926991714,1cyclictest0-21swapper/321:39:593
3410926991714,1cyclictest0-21swapper/320:05:003
3410926991713,2cyclictest3904647-21turbostat00:40:013
3410923991713,3cyclictest3449136-21ntp_kernel_pll_19:35:212
3410923991713,2cyclictest0-21swapper/219:45:252
3410921991714,2cyclictest761-21cups-browsed00:15:001
3410921991714,2cyclictest3847568-21latency_hist00:05:001
3410921991714,2cyclictest3417141-21latency_hist19:15:021
3410921991714,2cyclictest1-21systemd22:18:401
3410921991714,2cyclictest0-21swapper/123:40:001
3410921991713,3cyclictest3746460-21kthreadcore23:00:191
3410921991713,2cyclictest3437518-21kworker/u8:2-nfsiod23:00:001
3410921991712,3cyclictest1-21systemd20:02:401
341092199170,15cyclictest3686468-21cut22:25:181
3410917991714,2cyclictest3831536-21/usr/sbin/munin23:55:210
3410917991714,2cyclictest3518304-21systemd-run20:35:010
3410917991714,2cyclictest3474783-21systemd-run20:00:010
3410917991714,2cyclictest0-21swapper/023:20:010
3410917991714,2cyclictest0-21swapper/022:15:010
3410917991713,3cyclictest3717130-21cut22:45:010
3410917991713,3cyclictest3652657-21cut22:05:150
3410917991713,2cyclictest0-21swapper/022:05:000
3410917991713,2cyclictest0-21swapper/000:35:010
3410917991711,5cyclictest3749851-21/usr/sbin/munin23:05:160
3410926991613,1cyclictest0-21swapper/323:55:223
3410926991613,1cyclictest0-21swapper/323:20:183
3410926991613,1cyclictest0-21swapper/322:55:253
3410926991613,1cyclictest0-21swapper/322:15:443
3410926991613,1cyclictest0-21swapper/322:07:133
3410926991613,1cyclictest0-21swapper/320:52:233
3410926991613,1cyclictest0-21swapper/319:56:193
3410926991613,1cyclictest0-21swapper/319:40:163
3410926991613,1cyclictest0-21swapper/319:25:013
3410926991613,1cyclictest0-21swapper/300:20:013
3410923991613,2cyclictest3725386-21latency_hist22:50:002
3410923991613,2cyclictest3668644-21kworker/u8:4-nfsiod22:20:202
3410923991613,2cyclictest3643619-21latency_hist22:00:012
3410923991613,2cyclictest3373125-21kworker/u8:3+rpciod21:12:292
3410923991613,2cyclictest0-21swapper/223:39:592
3410923991612,3cyclictest3690127-21ntp_kernel_pll_22:25:222
3410923991612,3cyclictest3525090-21gltestperf20:40:142
3410923991612,2cyclictest769-21runrttasks21:25:222
3410923991612,2cyclictest3863780-21cut00:15:002
3410923991612,2cyclictest3576184-21kworker/u8:0-nfsiod21:35:182
3410923991612,2cyclictest0-21swapper/223:40:232
3410921991613,2cyclictest3880449-21/usr/sbin/munin00:25:141
3410921991613,2cyclictest3583599-21proc_pri21:20:231
3410921991613,2cyclictest3554665-21systemctl21:00:241
3410921991613,2cyclictest3438291-21cut19:30:151
3410921991613,2cyclictest3437041-21threads19:25:241
3410921991613,2cyclictest277-21plymouthd21:10:001
3410921991612,3cyclictest3500217-21fschecks_time20:20:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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