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2026-02-26 - 14:28
[ 290.152] (II) VESA: driver for VESA chipsets: vesa
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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 rackeslot6.osadl.org (updated Thu Feb 26, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239610399114108,4cyclictest2450192-21kworker/u8:0+flush-179:022:10:000
23961059910595,7cyclictest266-21systemd-journal22:59:591
23961039910292,7cyclictest2410413-21latency_hist19:55:000
23961059910094,5cyclictest2467531-21kworker/u8:1+flush-179:023:20:001
2396105999991,4cyclictest2397155-21kworker/u8:1+flush-179:019:45:001
2396105999589,5cyclictest2402503-21kworker/u8:3+events_unbound20:05:231
2396105999586,4cyclictest2440895-21kworker/u8:2+events_unbound21:30:231
2396105999287,4cyclictest2450192-21kworker/u8:0+events_unbound22:30:001
2396105998776,9cyclictest2412010-21latency_hist20:00:021
2396103998777,8cyclictest2408829-21latency_hist19:50:010
2396105998668,5cyclictest2446515-21kworker/u8:1+events_unbound22:20:231
2396103998675,8cyclictest266-21systemd-journal23:40:010
2396103998578,5cyclictest2465608-21kworker/u8:4+flush-179:023:10:010
2396105998272,7cyclictest2402503-21kworker/u8:3+events_unbound19:45:191
2396105998271,4cyclictest2397155-21kworker/u8:1+events_unbound19:50:231
2396103998274,6cyclictest2499557-21apt-get00:29:470
2396103998274,6cyclictest2425266-21kworker/u8:0+flush-179:020:45:010
2396105998075,4cyclictest2428587-21kworker/u8:3+events_unbound20:50:031
2396103997968,9cyclictest2459436-21/usr/sbin/munin22:25:220
2396105997873,4cyclictest2443054-21kworker/u8:3+events_unbound21:40:221
2396105997872,4cyclictest2428587-21kworker/u8:3+events_unbound20:55:211
2396105997872,4cyclictest2425266-21kworker/u8:0+events_unbound20:45:021
2396105997870,6cyclictest2428587-21kworker/u8:3+events_unbound21:20:191
2396105997866,9cyclictest266-21systemd-journal23:25:001
2396105997865,5cyclictest2494162-21kworker/u8:0+events_unbound00:20:211
2396105997772,4cyclictest2465608-21kworker/u8:4+events_unbound22:50:241
2396105997772,3cyclictest2425268-21kworker/u8:1+flush-179:021:00:201
2396105997671,4cyclictest2482538-21kworker/u8:2+events_unbound00:25:251
2396105997569,5cyclictest2461447-21kworker/u8:2+flush-179:022:35:241
2396105997566,6cyclictest2494162-21kworker/u8:0+events_unbound00:15:201
2396103997568,6cyclictest2465608-21kworker/u8:4+flush-179:023:05:000
2396103997567,5cyclictest2440895-21kworker/u8:2+flush-179:021:55:010
2396105997469,4cyclictest2402503-21kworker/u8:3+events_unbound20:15:141
2396105997469,4cyclictest2394364-21kworker/u8:3+events_unbound19:15:241
2396105997468,4cyclictest2397155-21kworker/u8:1+events_unbound20:00:021
2396103997468,5cyclictest2482538-21kworker/u8:2+flush-179:000:34:560
2396105997367,5cyclictest2478593-21kworker/u8:3+flush-179:023:40:001
2396105997367,4cyclictest2450192-21kworker/u8:0+flush-179:022:15:211
2396103997366,5cyclictest2488346-21kworker/u8:0+flush-179:000:00:000
2396105997264,6cyclictest2400881-21latency_hist19:25:011
2396105997261,9cyclictest2426609-21apt-get20:45:001
2396103997267,3cyclictest2438516-21kworker/u8:0+flush-179:021:30:010
2396105997167,3cyclictest2402503-21kworker/u8:3+events_unbound20:35:231
2396103997161,7cyclictest266-21systemd-journal21:07:400
2396105997065,4cyclictest2425268-21kworker/u8:1+events_unbound21:10:241
2396103996962,4cyclictest2478531-21kworker/u8:0+flush-179:023:30:220
2396103996960,7cyclictest2432130-21/usr/sbin/munin21:00:230
2396105996863,4cyclictest2450192-21kworker/u8:0+flush-179:022:10:191
2396105996863,4cyclictest2394364-21kworker/u8:3+events_unbound19:10:221
2396105996861,6cyclictest2482538-21kworker/u8:2+events_unbound23:50:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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