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2026-02-20 - 15:54
[ 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 #e, slot #4

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackeslot4s.osadl.org (updated Fri Feb 20, 2026 12:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2144477994532,12cyclictest2476483-21apt-get12:30:103
2144468994034,4cyclictest2232987-21diskstats08:35:120
2144477993630,4cyclictest252-21systemd-journal09:40:153
2144472993429,3cyclictest2284955-21kworker/u8:4+flush-259:009:45:171
2144468993430,3cyclictest2149586-21kworker/u8:2+flush-259:007:25:200
2144468993326,5cyclictest2326410-21diskstats10:05:130
2144475993228,3cyclictest252-21systemd-journal07:26:162
2144477993125,4cyclictest2372753-21diskstats10:50:143
2144475993127,3cyclictest2274204-21kworker/u8:3+flush-259:009:20:162
2144475993127,3cyclictest2222449-21kworker/u8:2+flush-259:008:25:162
2144468993126,3cyclictest2408457-21kworker/u8:1+flush-259:011:45:190
2144477993025,3cyclictest2154990-21apt-get07:20:113
2144468993026,3cyclictest2367374-21kworker/u8:3+flush-259:012:10:190
2144468993026,3cyclictest2217104-21kworker/u8:0+flush-259:009:00:000
2144475992923,4cyclictest2144400-21latency_hist07:10:012
2144472992821,4cyclictest2331406-21apt-get10:10:111
2144468992821,4cyclictest252-21systemd-journal12:10:010
214446899280,26cyclictest1-21systemd11:35:000
2144468992621,4cyclictest2284955-21kworker/u8:4+flush-259:009:45:190
2144475992522,2cyclictest2253302-21kworker/u8:3+events_unbound09:00:182
2144472992520,4cyclictest2402327-21ntpq11:15:191
2144472992520,4cyclictest2402327-21ntpq11:15:191
2144468992522,2cyclictest2315709-21kworker/u8:0+events_unbound09:55:230
2144468992521,3cyclictest2476452-21kworker/u8:4+flush-259:012:35:110
2144468992519,5cyclictest2362007-21latency_hist10:40:000
2144477992417,5cyclictest2273087-21ntpq09:10:213
2144468992419,3cyclictest2403520-21apt-get11:20:120
2144477992318,3cyclictest2419145-21latency_hist11:35:013
2144477992314,8cyclictest2284955-21kworker/u8:4+flush-259:010:35:003
2144472992318,4cyclictest2351985-21apt-get10:30:131
2144472992318,3cyclictest2367374-21kworker/u8:3+flush-259:011:15:001
2144472992318,3cyclictest2367374-21kworker/u8:3+flush-259:011:15:001
2144468992320,2cyclictest2367374-21kworker/u8:3+flush-259:012:20:200
2144468992318,3cyclictest2170659-21kworker/u8:0+events_unbound07:50:170
2144468992317,4cyclictest2377109-21kworker/u8:0+events_unbound10:55:190
2144472992218,3cyclictest2222482-21apt-get08:25:111
2144472992217,4cyclictest2325103-21ntpq10:00:211
2144472992217,4cyclictest2290197-21apt-get09:30:111
2144472992216,4cyclictest2466130-21kworker/u8:2+flush-259:012:25:011
2144468992218,3cyclictest2196484-21kworker/u8:1+events_unbound08:00:220
2144468992215,5cyclictest2242937-21latency_hist08:45:000
2144475992116,4cyclictest2284955-21kworker/u8:4+flush-259:010:20:202
2144472992117,3cyclictest2315709-21kworker/u8:0+flush-259:010:15:231
2144472992116,3cyclictest2263861-21/usr/sbin/munin09:05:131
2144468992118,2cyclictest2196484-21kworker/u8:1+flush-259:008:15:220
2144468992117,3cyclictest2424590-21apt-get11:40:110
2144468992117,3cyclictest2284955-21kworker/u8:4+events_unbound10:25:250
2144468992117,3cyclictest2274204-21kworker/u8:3+flush-259:009:50:240
2144468992117,3cyclictest2196484-21kworker/u8:1+flush-259:008:10:260
2144468992114,5cyclictest2392089-21ntpq11:05:220
2144477992017,2cyclictest2471044-21cron12:25:003
2144477992016,3cyclictest252-21systemd-journal07:19:153
2144472992017,2cyclictest2408457-21kworker/u8:1+flush-259:011:45:161
2144472992015,3cyclictest2227644-21apt-get08:30:121
2144468992017,2cyclictest2476452-21kworker/u8:4+events_unbound12:30:150
2144468992016,3cyclictest509-21rs:main0
2144468992015,3cyclictest2466130-21kworker/u8:2+flush-259:012:25:170
2144468992015,3cyclictest2382360-21kworker/u8:2+events_unbound11:10:140
2144468992015,3cyclictest2382360-21kworker/u8:2+events_unbound11:10:140
2144468992015,3cyclictest2367374-21kworker/u8:3+flush-259:010:45:170
2144468992013,5cyclictest2181004-21latency_hist07:45:010
214446899200,17cyclictest2268860-21unin-run09:10:000
2144477991916,2cyclictest507-21in:imuxsock09:05:003
2144477991913,4cyclictest2434607-21latency_hist11:50:013
2144475991915,3cyclictest2408457-21kworker/u8:1+flush-259:011:55:002
2144475991915,3cyclictest2206769-21kworker/u8:3+flush-259:008:20:212
2144472991916,2cyclictest2367374-21kworker/u8:3+flush-259:011:00:171
2144472991915,3cyclictest2149586-21kworker/u8:2+flush-259:007:50:011
2144472991915,3cyclictest2101143-21kworker/u8:0+flush-259:007:15:201
2144472991913,4cyclictest252-21systemd-journal07:58:151
2144472991913,4cyclictest2367382-21/usr/sbin/munin10:45:131
2144468991916,2cyclictest2300463-21kworker/u8:0+events_unbound09:40:190
2144468991916,2cyclictest2274204-21kworker/u8:3+flush-259:009:20:240
2144468991915,3cyclictest2321057-21kworker/u8:1+flush-259:010:00:240
2144468991913,4cyclictest252-21systemd-journal07:20:150
2144468991911,6cyclictest2169769-21ntpq07:30:210
2144477991812,4cyclictest252-21systemd-journal07:55:013
2144475991811,5cyclictest2159895-21latency_hist07:25:012
2144472991815,2cyclictest2285403-21irqcore09:25:171
2144472991814,3cyclictest2284955-21kworker/u8:4+flush-259:010:05:201
2144472991814,3cyclictest2186399-21/usr/sbin/munin07:50:231
2144472991813,3cyclictest2279399-21/usr/sbin/munin09:20:131
2144468991814,3cyclictest2149586-21kworker/u8:2+flush-259:007:55:200
2144468991812,4cyclictest252-21systemd-journal10:55:000
214446899180,16cyclictest1-21systemd11:54:160
2144477991712,4cyclictest2367374-21kworker/u8:3+flush-259:011:00:163
2144477991712,4cyclictest2191607-21apt-get07:55:123
2144477991711,4cyclictest2341443-21latency_hist10:20:013
214447599178,6cyclictest252-21systemd-journal08:45:002
2144475991713,2cyclictest0-21swapper/210:35:002
2144475991711,4cyclictest2403262-21latency_hist11:20:012
2144475991711,4cyclictest2325989-21latency_hist10:05:022
2144472991715,1cyclictest0-21swapper/107:30:011
2144472991714,2cyclictest509-21rs:main1
2144472991713,3cyclictest2476452-21kworker/u8:4+flush-259:012:30:151
2144472991713,3cyclictest2466130-21kworker/u8:2+events_unbound12:25:201
2144468991714,2cyclictest60350irq/132-enp0s29f1:rx-011:01:420
2144468991713,3cyclictest2367374-21kworker/u8:3+flush-259:011:35:470
2144468991713,3cyclictest2273996-21kworker/u8:2+flush-259:009:15:100
2144468991713,3cyclictest2170659-21kworker/u8:0+events_unbound07:45:230
2144468991711,4cyclictest2227611-21kworker/u8:4+events_unbound08:30:120
2144468991710,5cyclictest2460996-21apt-get12:15:110
2144477991613,2cyclictest2181673-21irqcore07:45:153
2144475991613,2cyclictest2316379-21irqcore09:55:152
2144475991613,2cyclictest2311242-21irqcore09:50:162
2144475991612,3cyclictest2367374-21kworker/u8:3+flush-259:011:50:002
2144475991612,3cyclictest2196484-21kworker/u8:1+flush-259:008:10:002
2144475991612,3cyclictest2111449-21kworker/u8:1+flush-259:007:15:252
214447299169,5cyclictest252-21systemd-journal11:35:001
2144472991612,3cyclictest2350712-21kworker/u8:2+flush-259:010:35:141
2144472991612,3cyclictest2300463-21kworker/u8:0+flush-259:009:40:201
2144468991613,2cyclictest60350irq/132-enp0s29f1:rx-009:34:200
2144468991613,2cyclictest60350irq/132-enp0s29f1:rx-009:10:140
2144468991613,2cyclictest2227611-21kworker/u8:4+events_unbound08:45:210
2144468991613,2cyclictest2206769-21kworker/u8:3+flush-259:008:20:240
2144468991612,3cyclictest2217104-21kworker/u8:0+events_unbound08:25:140
214446899161,13cyclictest252-21systemd-journal07:16:150
2144477991513,1cyclictest0-21swapper/309:10:003
2144477991512,2cyclictest2456858-21kthreadcore12:10:163
2144477991510,3cyclictest509-21rs:main3
2144477991510,3cyclictest252-21systemd-journal11:55:033
2144475991512,2cyclictest2111449-21kworker/u8:1+flush-259:007:10:242
2144475991512,1cyclictest0-21swapper/212:20:162
2144475991512,1cyclictest0-21swapper/209:40:002
2144475991511,3cyclictest2222449-21kworker/u8:2+flush-259:008:55:002
2144472991512,2cyclictest2403798-21fschecks_time11:20:151
2144472991511,3cyclictest2476452-21kworker/u8:4+flush-259:012:35:221
2144472991511,3cyclictest2408457-21kworker/u8:1+flush-259:011:40:251
2144472991511,2cyclictest2242958-21kworker/u8:1+flush-259:008:55:201
2144472991511,2cyclictest0-21swapper/111:50:191
214446899159,5cyclictest2367374-21kworker/u8:3+events_unbound12:00:180
2144468991514,1cyclictest60350irq/132-enp0s29f1:rx-010:17:390
2144468991512,2cyclictest61150irq/133-enp0s29f1:tx-008:50:240
2144468991512,2cyclictest2111449-21kworker/u8:1+flush-259:007:10:180
2144468991511,3cyclictest2408457-21kworker/u8:1+flush-259:012:00:000
2144468991511,3cyclictest2350712-21kworker/u8:2+events_unbound10:30:170
2144468991511,2cyclictest252-21systemd-journal08:09:590
2144468991510,3cyclictest2409066-21store11:25:010
2144477991412,1cyclictest2315688-21sh09:55:003
2144477991411,2cyclictest2315709-21kworker/u8:0+flush-259:010:10:203
2144477991410,3cyclictest2439742-21apt-get11:55:003
2144477991410,3cyclictest2408436-21https11:25:013
2144477991410,3cyclictest2382673-21latency_hist11:00:003
2144477991410,3cyclictest2222457-21/usr/sbin/munin08:25:193
214447599149,3cyclictest2408457-21kworker/u8:1+flush-259:011:40:182
214447599148,4cyclictest252-21systemd-journal09:35:002
214447599147,5cyclictest2216256-21ntpq08:15:212
214447599142,6cyclictest2289945-21awk09:30:002
2144475991411,2cyclictest2237277-21unixbench_multi08:35:232
214447299148,4cyclictest252-21systemd-journal10:57:161
214447299148,4cyclictest2450649-21/usr/sbin/munin12:05:151
214447299148,4cyclictest2367374-21kworker/u8:3+flush-259:012:15:001
2144472991411,2cyclictest2445979-21irqcore12:00:161
2144472991411,2cyclictest2441452-21kthreadcore11:55:161
2144472991410,3cyclictest2207180-21cut08:10:151
2144472991410,2cyclictest2461423-21irqcore12:15:151
2144468991410,3cyclictest60350irq/132-enp0s29f1:rx-011:15:120
2144468991410,3cyclictest60350irq/132-enp0s29f1:rx-011:15:110
214447799139,3cyclictest2242958-21kworker/u8:1+flush-259:008:50:163
214447799139,3cyclictest2149586-21kworker/u8:2+flush-259:008:05:163
214447799138,4cyclictest2170897-21apt-get07:35:113
2144477991310,2cyclictest2306100-21irqcore09:45:173
2144477991310,2cyclictest2248083-21idleruntime-cro08:50:003
214447599138,4cyclictest2242958-21kworker/u8:1+flush-259:008:55:242
214447599137,4cyclictest2445715-21diskstats12:00:132
214447599131,2cyclictest2476226-21awk12:30:002
2144475991311,1cyclictest0-21swapper/209:15:172
2144475991310,2cyclictest2414466-21uniq11:30:132
2144475991310,2cyclictest2367142-21cron10:44:592
2144475991310,2cyclictest0-21swapper/212:35:002
214447299139,3cyclictest2341469-21kworker/u8:1+flush-259:010:30:001
214447299139,3cyclictest2149586-21kworker/u8:2+flush-259:007:20:241
214447299137,4cyclictest509-21rs:main1
2144472991310,2cyclictest2382360-21kworker/u8:2+flush-259:011:05:251
2144472991310,2cyclictest2227611-21kworker/u8:4+events_unbound09:10:171
2144472991310,2cyclictest2196484-21kworker/u8:1+flush-259:008:00:201
2144472991310,2cyclictest2149586-21kworker/u8:2+flush-259:008:05:161
2144472991310,2cyclictest2149099-21unixbench_multi07:10:241
2144468991312,1cyclictest60350irq/132-enp0s29f1:rx-007:38:510
2144468991311,1cyclictest60350irq/132-enp0s29f1:rx-010:10:320
2144468991311,1cyclictest60350irq/132-enp0s29f1:rx-009:25:390
2144468991311,1cyclictest0-21swapper/007:10:010
2144468991310,2cyclictest61150irq/133-enp0s29f1:tx-009:00:170
214447799127,4cyclictest2367374-21kworker/u8:3+flush-259:011:15:163
214447799127,4cyclictest2367374-21kworker/u8:3+flush-259:011:15:153
214447799124,7cyclictest2346336-21sshd10:22:153
214447599129,2cyclictest0-21swapper/207:45:012
214447599128,3cyclictest2367374-21kworker/u8:3+flush-259:011:35:152
214447599127,4cyclictest252-21systemd-journal11:19:252
214447599121,9cyclictest0-21swapper/212:15:112
214447599121,6cyclictest2232554-21idleruntime-cro08:35:002
2144475991210,1cyclictest2186145-21cron07:50:012
214447299129,2cyclictest2206769-21kworker/u8:3-events_unbound08:15:161
214447299128,3cyclictest252-21systemd-journal09:51:141
214447299128,3cyclictest2206769-21kworker/u8:3+flush-259:008:20:201
214447299127,3cyclictest2300225-21basename09:40:001
214446899129,2cyclictest2273996-21kworker/u8:2+events_unbound09:35:210
214447799119,1cyclictest0-21swapper/311:25:003
214447799119,1cyclictest0-21swapper/307:30:013
214447799118,2cyclictest500-21systemd-logind11:40:003
214447799118,2cyclictest2196896-21fschecks_count08:00:153
214447799118,2cyclictest0-21swapper/312:40:003
214447799117,3cyclictest2217104-21kworker/u8:0+flush-259:008:25:003
214447799117,2cyclictest2238433-21irqcore08:40:173
214447599118,2cyclictest2403585-21cpuspeed_turbos11:20:142
214447599118,2cyclictest2374892-21kthreadcore10:50:182
214447599118,2cyclictest2207204-21fschecks_count08:10:152
214447599118,2cyclictest0-21swapper/212:40:002
214447599118,2cyclictest0-21swapper/208:05:002
214447599115,4cyclictest2346821-21/usr/sbin/munin10:25:202
214447599110,9cyclictest2387821-21awk11:05:002
214447599110,3cyclictest2268836-21latency_hist09:10:012
214447299115,4cyclictest252-21systemd-journal07:30:151
214447299114,5cyclictest2408959-21base6411:25:011
214447799108,1cyclictest2315709-21kworker/u8:0+events_unbound09:55:123
214447799108,1cyclictest0-21swapper/312:20:003
214447799106,3cyclictest2387858-21kworker/u8:1+flush-259:011:10:163
214447799106,3cyclictest2387858-21kworker/u8:1+flush-259:011:10:163
214447599106,2cyclictest0-21swapper/211:10:142
214447599106,2cyclictest0-21swapper/211:10:132
214447599105,4cyclictest2274204-21kworker/u8:3+flush-259:009:50:002
214447299107,1cyclictest0-21swapper/110:55:001
214447299106,3cyclictest2149586-21kworker/u8:2+flush-259:007:35:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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