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2025-07-01 - 04:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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.

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 rack7slot3s.osadl.org (updated Mon Jun 30, 2025 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
87859910431,37cyclictest0-21swapper/008:00:260
87859910431,37cyclictest0-21swapper/008:00:260
323742970,5sleep1878699cyclictest08:15:231
115752860,2sleep30-21swapper/311:57:183
878599857,25cyclictest0-21swapper/009:45:270
320752800,5sleep2878799cyclictest12:22:092
878599792,38cyclictest0-21swapper/011:35:260
315572790,2sleep337-21rcuc/310:12:593
8786997744,12cyclictest23-21ksoftirqd/110:45:251
878599749,53cyclictest975-21missed_timers10:15:370
878599749,53cyclictest975-21missed_timers10:15:370
878599738,48cyclictest13691-21unixbench_multi08:50:430
131082730,1sleep00-21swapper/012:00:090
878599697,48cyclictest11303-21ntpq07:15:340
878599697,46cyclictest16308-21unixbench-2d09:50:440
878599695,50cyclictest10995-21taskset11:15:320
8785996928,3cyclictest0-21swapper/008:25:240
878599691,54cyclictest22652-21grep10:45:430
878799672,51cyclictest0-21swapper/210:40:322
8787996723,26cyclictest30138-21apt-get09:25:162
878599676,58cyclictest0-21swapper/010:55:160
878599675,50cyclictest6342-21timerandwakeup11:50:420
197332670,3sleep10-21swapper/109:55:381
878599669,33cyclictest0-21swapper/008:35:250
878599661,52cyclictest29434-21cpu10:10:290
8785996614,23cyclictest22384-21sh10:00:260
878599658,12cyclictest0-21swapper/007:30:270
195532650,2sleep00-21swapper/011:27:200
8785996420,26cyclictest21084-21munin-plugin-st10:45:100
878599641,48cyclictest24053-21/usr/sbin/munin07:50:390
293752640,2sleep00-21swapper/012:19:450
878799636,45cyclictest7950irq/56-dwc_otg_07:10:272
878599635,33cyclictest0-21swapper/009:15:270
878599631,32cyclictest19131-21grep09:05:430
878899624,15cyclictest7950irq/56-dwc_otg_12:20:283
878799629,44cyclictest8050irq/56-dwc_otg_11:15:372
878799621,6cyclictest19016-21timerwakeupswit09:05:422
878599622,29cyclictest2881-21rm12:25:400
878799615,4cyclictest8050irq/56-dwc_otg_10:15:442
878799615,4cyclictest8050irq/56-dwc_otg_10:15:442
878599611,34cyclictest0-21swapper/011:20:250
878799601,4cyclictest7850irq/56-dwc_otg10:10:162
878799598,40cyclictest0-21swapper/212:16:022
878799597,4cyclictest0-21swapper/211:57:462
8787995910,34cyclictest0-21swapper/209:45:082
878599599,35cyclictest18832-21switchtime07:35:360
8785995938,8cyclictest0-21swapper/009:25:210
878599592,45cyclictest0-21swapper/007:43:400
878599590,48cyclictest32423-21runrttasks08:15:260
878799581,3cyclictest7950irq/56-dwc_otg_11:10:342
878599586,39cyclictest0-21swapper/008:30:260
878599584,9cyclictest0-21swapper/009:35:280
878599584,9cyclictest0-21swapper/009:35:280
8785995832,5cyclictest7850irq/56-dwc_otg10:05:400
8785995831,9cyclictest101ktimersoftd/011:10:280
878599582,47cyclictest0-21swapper/007:55:310
878599581,54cyclictest17757-21idleruntime-cro09:05:090
8787995712,42cyclictest0-21swapper/207:40:252
8785995742,8cyclictest0-21swapper/012:20:430
83982573,47sleep10-21swapper/107:08:371
83982573,47sleep10-21swapper/107:08:371
878799563,10cyclictest7850irq/56-dwc_otg11:04:202
878799563,10cyclictest7850irq/56-dwc_otg11:04:202
878599568,38cyclictest0-21swapper/012:00:240
8785995633,15cyclictest6308-21cut12:30:330
8785995625,6cyclictest0-21swapper/010:25:280
878599561,29cyclictest0-21swapper/009:20:390
878599561,29cyclictest0-21swapper/009:20:390
878799554,4cyclictest7850irq/56-dwc_otg08:00:272
878799554,4cyclictest7850irq/56-dwc_otg08:00:272
878799554,11cyclictest7850irq/56-dwc_otg11:29:072
878799551,4cyclictest0-21swapper/209:58:212
878799551,44cyclictest0-21swapper/212:39:592
878799551,11cyclictest7850irq/56-dwc_otg11:37:372
878599558,35cyclictest14197-21latency_hist10:35:100
878599558,23cyclictest0-21swapper/007:10:200
878599555,46cyclictest101ktimersoftd/010:51:100
878599555,20cyclictest24975-21dpkg11:35:100
8785995550,3cyclictest0-21swapper/010:22:520
8785995534,10cyclictest16576-21runrttasks10:37:430
878599552,38cyclictest20302-21ssh09:56:220
878799544,4cyclictest13863-21/usr/sbin/munin12:00:292
878799542,4cyclictest0-21swapper/210:02:382
878799542,3cyclictest7950irq/56-dwc_otg_09:45:272
8785995435,8cyclictest101ktimersoftd/011:45:350
162272540,2sleep30-21swapper/311:23:123
878799539,4cyclictest9471-21kernelversion08:40:342
878799539,4cyclictest0-21swapper/210:23:332
878799536,7cyclictest8050irq/56-dwc_otg_11:48:082
878799536,3cyclictest7850irq/56-dwc_otg11:09:562
878799532,10cyclictest6492-21/usr/sbin/munin08:30:402
8787995314,4cyclictest13056-21kernelversion08:50:342
878799531,3cyclictest0-21swapper/211:42:552
878799531,3cyclictest0-21swapper/207:35:212
878599533,29cyclictest134-21systemd-journal11:05:100
878599533,29cyclictest134-21systemd-journal11:05:100
8785995332,10cyclictest0-21swapper/011:42:350
878599532,39cyclictest11829-21ssh12:36:500
8788995244,5cyclictest22378-21ssh10:00:263
878799527,3cyclictest8050irq/56-dwc_otg_10:29:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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