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2026-02-02 - 11:03
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #3

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 rack5slot3s.osadl.org (updated Mon Feb 02, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171762231163,55sleep30-21swapper/319:05:033
192492230162,55sleep20-21swapper/219:09:402
189932201165,24sleep00-21swapper/019:06:200
173132200163,24sleep10-21swapper/119:05:051
1207321360,5sleep01935699cyclictest22:39:350
133472560,5sleep01935699cyclictest20:05:240
293262510,1sleep30-21swapper/323:15:253
293262510,1sleep30-21swapper/323:15:253
276302480,1sleep10-21swapper/122:00:111
108872480,4sleep121-21rcuc/120:00:191
19374994743,3cyclictest0-21swapper/319:12:553
243022460,2sleep339-21rcuc/320:30:233
221202460,5sleep3401ktimersoftd/300:15:133
258712300,4sleep339-21rcuc/323:10:123
209032300,5sleep011-21rcuc/000:10:250
1936899283,8cyclictest16085-40dnf20:13:072
19364992816,4cyclictest0-21swapper/100:35:171
1935699273,10cyclictest0-21swapper/023:40:240
62002260,4sleep230-21rcuc/219:50:172
1936899269,4cyclictest22780-21expr19:15:122
197862250,8sleep07-21ksoftirqd/020:20:250
1936899251,6cyclictest0-21swapper/223:07:472
1936499250,4cyclictest10158-21kworker/1:123:07:051
1937499242,6cyclictest0-21swapper/321:17:303
19374992410,6cyclictest0-21swapper/322:05:173
19374992410,6cyclictest0-21swapper/322:05:173
1936899243,5cyclictest0-21swapper/222:02:302
1936899241,5cyclictest0-21swapper/223:55:312
1936899241,5cyclictest0-21swapper/200:02:472
1936499244,17cyclictest1686-21expr19:40:161
1936499244,17cyclictest1686-21expr19:40:151
1936499241,8cyclictest32505-21needreboot22:10:191
1935699248,13cyclictest31642-21awk20:50:010
1935699245,9cyclictest25540-21head00:20:240
1935699241,5cyclictest0-21swapper/022:31:290
19356992412,8cyclictest0-21swapper/022:02:300
19356992412,7cyclictest0-21swapper/000:19:460
1935699241,11cyclictest20629-21ntp_states19:10:220
1937499233,8cyclictest18523-21kworker/u8:122:55:243
1937499231,7cyclictest0-21swapper/300:10:333
1936899231,6cyclictest0-21swapper/200:35:002
1936899231,5cyclictest12413-21kworker/u8:221:32:032
19364992317,3cyclictest18180-21kernelversion00:05:151
1935699239,3cyclictest1060-21/usr/sbin/munin19:40:230
1935699239,3cyclictest1060-21/usr/sbin/munin19:40:230
1935699237,9cyclictest12477-21perf21:20:010
1935699233,2cyclictest0-21swapper/023:03:050
1935699232,10cyclictest6102-21/usr/sbin/munin21:05:200
1935699231,11cyclictest31245-21/usr/sbin/munin19:35:210
1937499222,12cyclictest1-21systemd20:58:223
1937499222,12cyclictest1-21systemd20:58:223
1937499221,6cyclictest0-21swapper/321:41:013
1937499221,5cyclictest14529-21kworker/u8:223:31:253
1937499221,12cyclictest25723-21ntp_states19:20:223
1937499221,10cyclictest823-21snmpd20:04:483
1937499221,10cyclictest18601-21unixbench_multi21:30:253
1936899227,5cyclictest0-21swapper/200:25:202
1936899227,5cyclictest0-21swapper/200:25:202
1936899221,6cyclictest0-21swapper/223:43:042
1936899221,6cyclictest0-21swapper/223:01:192
1936899221,6cyclictest0-21swapper/222:28:352
19368992210,4cyclictest0-21swapper/223:30:232
1936899220,9cyclictest1852350kworker/u8:123:24:522
1936499221,3cyclictest32205-21diskstats20:50:131
1936499221,19cyclictest0-21swapper/123:00:211
1936499221,18cyclictest267742sleep121:58:461
1936499220,7cyclictest0-21swapper/121:20:111
1935699222,2cyclictest88150irq/126-enp1s0-21:50:300
1935699221,4cyclictest0-21swapper/023:48:150
1935699221,4cyclictest0-21swapper/023:23:200
1935699221,4cyclictest0-21swapper/023:17:060
1935699221,4cyclictest0-21swapper/023:17:060
1935699221,4cyclictest0-21swapper/022:51:200
1935699221,4cyclictest0-21swapper/022:48:520
1935699221,4cyclictest0-21swapper/021:47:340
1935699221,4cyclictest0-21swapper/000:35:040
1935699221,4cyclictest0-21swapper/000:28:060
1935699221,4cyclictest0-21swapper/000:28:060
1935699221,3cyclictest0-21swapper/022:18:570
1935699221,2cyclictest88150irq/126-enp1s0-23:09:140
1935699221,2cyclictest88150irq/126-enp1s0-00:34:500
19356992212,3cyclictest0-21swapper/021:32:030
1935699221,10cyclictest5084-21memory23:35:200
19356992210,7cyclictest0-21swapper/023:55:200
18842221,2sleep10-21swapper/122:15:171
1937499216,5cyclictest4166-21kworker/u8:123:36:173
1937499216,2cyclictest30340-21crond00:35:013
1937499214,4cyclictest580-21systemd-journal22:20:013
1937499214,4cyclictest0-21swapper/321:10:013
1937499213,9cyclictest20642-21latency_hist20:25:023
1937499213,4cyclictest8335-21sh23:45:013
1937499212,5cyclictest0-21swapper/320:45:233
1937499212,11cyclictest26176-21/usr/sbin/munin00:25:253
1937499212,11cyclictest26176-21/usr/sbin/munin00:25:253
1937499212,11cyclictest16474-21/usr/sbin/munin20:15:113
1937499211,6cyclictest780-21in:imjournal19:50:233
1937499211,15cyclictest0-21swapper/321:45:223
1937499211,11cyclictest0-21swapper/323:25:013
1937499211,10cyclictest29023-21head20:40:263
1937499210,4cyclictest0-21swapper/322:50:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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