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2026-01-22 - 20:13
[ 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 #c, slot #7

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 rackcslot7s.osadl.org (updated Thu Jan 22, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232102921200,3sleep30-21swapper/323:55:233
225879721070,7sleep14497-21PK-Backend21:00:151
1973991010,81rtkit-daemon0-21swapper/119:05:261
22284372810,11sleep3411rcuc/319:30:293
221931627940,13sleep30-21swapper/319:05:413
221962126445,13sleep00-21swapper/019:09:360
2219783996319,26cyclictest2250651-21taskset20:35:240
2219783996310,11cyclictest2252118-21irqstats20:40:200
221950826243,13sleep20-21swapper/219:08:082
2219783996117,22cyclictest2241401-21cpuspeed_turbos20:10:140
2219783996117,21cyclictest2279100-21/usr/sbin/munin21:55:270
2219783995911,25cyclictest2300046-21cat22:55:190
2219783995810,25cyclictest2238894-21chrt20:00:340
2219783995610,27cyclictest2290547-21cstates22:30:130
22647982550,6chrt4497-21PK-Backend21:15:231
2219783995511,25cyclictest2270252-21ntp_states21:30:230
221979199548,27cyclictest2318611-21find23:50:102
2219783995414,15cyclictest2298363-21uname22:50:200
2219783995413,16cyclictest2255495-21hddtemp_smartct20:50:170
2219783995411,20cyclictest2322860-21ntp_states00:00:220
2219787995319,11cyclictest2289326-21ntp_kernel_pll_22:25:221
2219787995312,13cyclictest2287955-21cat22:20:291
2219783995310,26cyclictest2307166-21cat23:15:220
2219783995310,15cyclictest2248071-21latency_hist20:30:010
23064772520,27sleep30-21swapper/323:15:013
2219791995229,9cyclictest34-21ksoftirqd/221:53:022
2219787995214,11cyclictest2280166-21cstates22:00:141
2219787995213,13cyclictest2281881-21cstates22:05:131
22886592510,7sleep34497-21PK-Backend22:25:123
22327672510,7chrt4497-21PK-Backend19:45:121
2219787995119,12cyclictest2307579-21sed23:15:311
221978799511,6cyclictest2254846-21basename20:49:591
2219783995118,29cyclictest2235320-21cat19:50:280
2219783995118,28cyclictest2231742-21python319:40:270
2219787995020,7cyclictest1137-21runrttasks00:20:131
2219787995014,12cyclictest2221658-21cat19:15:021
2219783995016,29cyclictest2321074-21awk23:55:230
2219783995010,17cyclictest2308543-21cat23:20:140
22361552490,8sleep3421ksoftirqd/319:55:123
2219791994917,29cyclictest34-21ksoftirqd/222:20:012
2219791994917,29cyclictest34-21ksoftirqd/222:20:012
2219787994913,12cyclictest2251061-21seq20:36:151
2219787994913,11cyclictest2319059-21basename23:50:171
2219783994912,32cyclictest2314239-21proc_pri23:35:250
2219783994910,17cyclictest2303383-21expr23:05:130
22464212480,8sleep342-21ksoftirqd/320:25:103
2219787994817,10cyclictest2284014-21ls22:10:201
2219787994813,11cyclictest2231269-21hddtemp_smartct19:40:161
2219783994818,26cyclictest2280699-21ntp_states22:00:240
221978399481,34cyclictest0-21swapper/022:23:030
2219783994810,16cyclictest2277343-21python321:50:260
2219787994715,10cyclictest2286604-21cron22:20:001
2219787994715,10cyclictest2286604-21cron22:19:591
221978399476,15cyclictest2283418-21apt22:10:110
2219783994710,15cyclictest2323840-21awk00:05:110
2219787994611,7cyclictest0-21swapper/123:40:021
221978399468,16cyclictest2330775-21apt00:25:080
2219783994617,25cyclictest2293845-21munin-run22:40:010
2219783994615,27cyclictest2302262-21cat23:00:280
2219783994614,27cyclictest2326098-21latency00:10:210
2219783994614,27cyclictest2326098-21latency00:10:210
2219787994517,7cyclictest4497-21PK-Backend23:56:571
221978399458,15cyclictest1-21systemd20:50:010
2219783994516,24cyclictest2233221-21grep19:45:220
2219783994515,26cyclictest2288940-21cstates22:25:140
2219783994515,25cyclictest2285411-21expr22:15:130
2219783994515,25cyclictest2285411-21expr22:15:130
2219787994415,8cyclictest2316953-21cpu23:45:131
221978399443,21cyclictest0-21swapper/021:20:470
2219783994419,20cyclictest2329914-21python300:20:270
2219783994418,21cyclictest2243687-21/usr/sbin/munin20:15:230
2219783994416,24cyclictest2239679-21cpuspeed_turbos20:05:140
2219783994416,23cyclictest438-20systemd-journal19:40:010
2219783994410,11cyclictest2260362-21cat21:05:010
22243122430,8sleep20-21swapper/219:20:152
221979199431,16cyclictest23328322cstates00:30:112
2219783994315,23cyclictest2310042-21ls23:25:140
2219783994314,24cyclictest2316194-21timerwakeupswit23:40:300
2219783994314,24cyclictest2276384-21latency_hist21:50:020
2219783994312,28cyclictest2320180-21latency_hist23:55:010
2219783994310,27cyclictest2236231-21expr19:55:130
2219793994224,13cyclictest438-20systemd-journal20:55:003
2219783994218,20cyclictest2273887-21python321:40:290
2219783994218,19cyclictest2224696-21ntp_states19:20:250
2219783994216,22cyclictest2262064-21munin-run21:10:010
2219783994214,25cyclictest2258151-21taskset20:58:240
23086262410,7sleep10-21swapper/123:20:151
2219793994119,17cyclictest42-21ksoftirqd/300:20:253
221979199413,20cyclictest34-21ksoftirqd/220:25:002
221978799416,22cyclictest2243609-21sed20:15:201
2219787994117,8cyclictest2315148-21/usr/sbin/munin23:40:221
2219783994117,19cyclictest2245458-21ntp_states20:20:230
2219783994117,19cyclictest2226025-21cstates19:25:130
2219783994116,21cyclictest1-21systemd22:50:010
2219783994115,22cyclictest2228937-21date19:35:020
2219783994114,23cyclictest2327519-21cstates00:15:130
2219783994113,24cyclictest0-21swapper/022:10:030
2219783994113,23cyclictest2304775-21acpi23:10:110
221979399409,26cyclictest2334295-21sort00:35:153
2219791994025,11cyclictest2268966-21cron21:30:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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