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2025-12-01 - 10:58

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 Sun Nov 30, 2025 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
131762880,4sleep113179-21fschecks_count07:30:281
5576998134,23cyclictest0-21swapper/012:20:220
5576998125,32cyclictest0-21swapper/010:50:240
5576998123,25cyclictest0-21swapper/010:30:260
101782790,2sleep00-21swapper/008:50:290
99752780,5sleep0557699cyclictest09:45:320
99752780,5sleep0557699cyclictest09:45:320
235462780,2sleep20-21swapper/210:50:392
5576997519,34cyclictest31270-21fschecks_count10:15:290
557699751,10cyclictest0-21swapper/009:30:210
5578996928,13cyclictest27744-21sh12:26:372
557699694,29cyclictest0-21swapper/009:10:230
557699694,29cyclictest0-21swapper/009:10:230
557699692,41cyclictest0-21swapper/011:30:220
33082690,4sleep09-21ksoftirqd/011:55:260
5578996830,23cyclictest31547-21/usr/sbin/munin08:20:322
5578996830,23cyclictest31547-21/usr/sbin/munin08:20:322
557699681,47cyclictest6822-21latency_hist11:15:110
5578996733,11cyclictest18093-21rm10:42:362
5576996715,28cyclictest18457-21aten_rbpower_vo07:45:250
557999665,12cyclictest7950irq/56-dwc_otg_09:55:103
5579996626,5cyclictest30718-21ssh10:15:113
5578996631,18cyclictest400-21timerwakeupswit11:50:372
5578996630,22cyclictest21511-21ssh10:48:122
5578996630,22cyclictest21511-21ssh10:48:122
557699663,31cyclictest15456-21fschecks_count09:05:280
5576996630,4cyclictest0-21swapper/012:25:240
5578996538,11cyclictest12940-21apt-get07:30:242
5578996529,13cyclictest7682-21ssh11:15:362
5578996528,22cyclictest907-21rm09:33:072
5578996526,20cyclictest17073-21sh12:13:022
557699654,49cyclictest0-21swapper/010:55:240
5576996540,14cyclictest0-21swapper/010:35:410
5576996527,5cyclictest0-21swapper/011:25:220
5576996524,10cyclictest0-21swapper/007:15:230
5578996431,19cyclictest16647-21/usr/sbin/munin09:55:282
5578996426,26cyclictest2318-21df10:20:292
5578996426,26cyclictest2318-21df10:20:292
5578996330,11cyclictest657-21diskstats08:25:282
5578996328,12cyclictest13653-21fschecks_count09:00:282
5578996325,10cyclictest7850irq/56-dwc_otg_07:10:122
5578996325,10cyclictest7850irq/56-dwc_otg_07:10:122
5578996229,22cyclictest30105-21ssh11:47:262
5578996229,13cyclictest15946-21ps09:05:362
5578996221,14cyclictest8978-21ls07:20:102
318722620,2sleep30-21swapper/308:20:373
318722620,2sleep30-21swapper/308:20:373
5578996132,18cyclictest11265-21ssh09:47:042
5578996132,18cyclictest11265-21ssh09:47:042
5578996129,13cyclictest14259-21rm12:10:102
5578996128,17cyclictest26765-21sh10:09:222
557699611,36cyclictest24184-21fschecks_count10:05:310
5578996030,18cyclictest11728-21ntp_states07:25:352
5578996026,14cyclictest10896-21taskset10:31:382
5578996026,12cyclictest18989-21/usr/sbin/munin12:15:312
5578996025,12cyclictest3339-21sed09:35:392
5578996024,21cyclictest8711-21ssh12:01:312
5578996024,13cyclictest24442-21tr11:40:272
5578996024,13cyclictest16202-21cron09:55:102
5578996023,14cyclictest6904-21grep10:25:402
5578996021,26cyclictest22825-21taskset10:03:292
5578996021,26cyclictest22825-21taskset10:03:292
557699606,40cyclictest0-21swapper/010:25:250
5578995939,8cyclictest15432-21ntp_states07:35:362
5578995939,8cyclictest15432-21ntp_states07:35:362
5578995931,7cyclictest5025-21users11:10:472
5578995931,11cyclictest1686-21ssh10:20:042
5578995930,13cyclictest29091-21ssh10:59:462
5578995928,13cyclictest5922-21ssh11:58:412
5578995928,11cyclictest16253-21ssh11:28:042
5578995925,20cyclictest12333-21ssh11:22:102
5578995924,14cyclictest32731-21aten_rbpower_en11:05:272
557699596,30cyclictest14975-21fschecks_count07:35:300
557699596,30cyclictest14975-21fschecks_count07:35:300
50542593,12sleep20-21swapper/207:07:012
5578995825,12cyclictest18119-21sed11:30:322
5576995822,6cyclictest28465-21unixbench_multi08:10:400
557699581,45cyclictest0-21swapper/008:15:390
5578995730,12cyclictest25952-21ssh09:21:542
5578995728,18cyclictest1370-21/usr/sbin/munin12:35:282
5578995726,12cyclictest31388-21ssh11:02:172
5578995724,13cyclictest19728-21ssh09:13:452
5578995724,13cyclictest19728-21ssh09:13:452
5578995723,20cyclictest30676-21runrttasks09:30:092
557799576,7cyclictest7950irq/56-dwc_otg_08:05:231
557699576,29cyclictest0-21swapper/011:35:250
5576995731,5cyclictest12190-21unixbench_singl07:25:400
5576995730,7cyclictest7850irq/56-dwc_otg_08:35:260
5576995730,13cyclictest0-21swapper/010:00:310
5576995730,13cyclictest0-21swapper/010:00:310
5576995725,18cyclictest24749-21fschecks_time11:40:320
5578995627,12cyclictest14617-21ssh10:37:212
5578995626,19cyclictest16764-21diskmemload11:36:592
5578995625,23cyclictest11312-21runrttasks08:54:502
5578995624,13cyclictest23955-21ssh12:21:232
5578995622,14cyclictest22300-21ssh09:16:512
557799562,11cyclictest7850irq/56-dwc_otg_09:35:221
5576995625,14cyclictest0-21swapper/010:25:120
557699561,19cyclictest0-21swapper/008:30:230
5578995523,12cyclictest13151-21apt09:00:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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