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2026-02-23 - 09:10
[ 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 Mon Feb 23, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23714279910397,4cyclictest2423094-21kworker/u8:1+flush-179:022:45:000
2371427999180,8cyclictest2435799-21latency_hist22:30:000
2371427999084,4cyclictest2398643-21kworker/u8:1+events_unbound20:35:000
2371427998881,5cyclictest2423094-21kworker/u8:1+events_unbound22:35:230
2371427998783,3cyclictest2385379-21kworker/u8:0+flush-179:021:25:010
2371427998678,6cyclictest266-21systemd-journal00:04:000
2371427998672,4cyclictest2460439-21kworker/u8:1+events_unbound23:45:000
2371430998578,5cyclictest2423094-21kworker/u8:1+events_unbound23:15:021
2371427998582,2cyclictest2415094-21kworker/u8:3+events_unbound21:35:000
2371427998468,4cyclictest2464340-21kworker/u8:0+events_unbound00:20:230
2371427998376,5cyclictest2393656-21kworker/u8:3+events_unbound20:25:230
2371430998277,4cyclictest2408718-21kworker/u8:3+events_unbound21:10:221
2371430998176,4cyclictest2464340-21kworker/u8:0+events_unbound00:05:241
2371430998076,3cyclictest2411897-21kworker/u8:1+events_unbound21:20:241
2371427998074,4cyclictest2475143-21kworker/u8:3+flush-179:000:30:250
2371430997974,4cyclictest2439232-21kworker/u8:0+events_unbound22:40:231
2371427997974,3cyclictest2450436-21kworker/u8:3+events_unbound23:25:230
2371430997869,7cyclictest2442167-21latency_hist22:50:021
2371430997772,4cyclictest2411897-21kworker/u8:1+events_unbound21:15:241
2371427997769,6cyclictest2413489-21kworker/u8:2+flush-179:021:40:250
2371427997664,9cyclictest510-21rs:main0
2371430997571,3cyclictest2423094-21kworker/u8:1+events_unbound22:30:231
2371430997470,3cyclictest2423038-21kworker/u8:0+events_unbound22:20:241
2371427997369,3cyclictest2415094-21kworker/u8:3+flush-179:021:50:000
2371427997368,4cyclictest2465289-21kworker/u8:1+events_unbound00:20:010
2371427997365,6cyclictest2391741-21kworker/u8:2+events_unbound20:15:030
2371427997364,7cyclictest2453847-21apt-get23:25:000
2371427997261,9cyclictest2408994-21apt-get21:05:110
2371430997166,4cyclictest2475143-21kworker/u8:3+flush-179:000:30:221
2371430997166,4cyclictest2385379-21kworker/u8:0+events_unbound21:05:221
2371430997166,4cyclictest2385379-21kworker/u8:0+events_unbound21:00:221
2371427997166,4cyclictest2353712-21kworker/u8:3+flush-179:020:00:250
2371427997163,7cyclictest2413489-21kworker/u8:2+flush-179:021:30:010
2371430997065,4cyclictest2423094-21kworker/u8:1+events_unbound22:05:261
2371430997064,5cyclictest2423038-21kworker/u8:0+events_unbound22:00:001
2371430997064,4cyclictest2439232-21kworker/u8:0+flush-179:023:10:161
2371430997064,4cyclictest2439232-21kworker/u8:0+flush-179:023:10:151
2371427997064,3cyclictest2385379-21kworker/u8:0+events_unbound20:10:240
2371427997062,6cyclictest2452237-21latency_hist23:20:010
2371427997061,6cyclictest2385379-21kworker/u8:0+events_unbound21:15:120
2371430996864,3cyclictest2464340-21kworker/u8:0+events_unbound00:10:241
2371430996864,3cyclictest2423094-21kworker/u8:1+events_unbound22:50:141
2371430996864,3cyclictest2423094-21kworker/u8:1+events_unbound22:50:141
2371430996862,4cyclictest2381502-21kworker/u8:1+flush-179:019:50:151
2371430996762,4cyclictest2437418-21kworker/u8:4+flush-179:022:39:551
2371430996762,4cyclictest2413489-21kworker/u8:2+flush-179:021:49:561
2371430996762,4cyclictest2391741-21kworker/u8:2+events_unbound20:15:251
2371430996762,4cyclictest2385379-21kworker/u8:0+flush-179:020:50:271
2371430996762,4cyclictest2385379-21kworker/u8:0+flush-179:020:50:261
2371427996762,2cyclictest2385379-21kworker/u8:0+flush-179:020:50:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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