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2025-12-24 - 19:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, 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.

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 792 highest latencies:
System rack2slot7s.osadl.org (updated Wed Dec 24, 2025 07:55:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2529006997361,5cyclictest0-21swapper/205:49:492
2529006996145,8cyclictest3408109-21sh06:12:472
252900499580,24cyclictest3408101-21tee06:12:470
2529006995743,11cyclictest2841239-21fstime05:57:432
2529006995738,14cyclictest0-21swapper/205:34:462
2529005995548,4cyclictest0-21swapper/105:49:561
2529006995446,5cyclictest2801958-21sh05:42:052
2529006995446,5cyclictest2801958-21sh05:42:052
2529005995143,5cyclictest3341688-21expr06:10:101
2529006994940,5cyclictest3337743-21sh06:10:012
2529005994840,5cyclictest3286689-21multi.sh06:07:581
2529005994739,5cyclictest2777264-21sh05:41:041
2529005994739,5cyclictest2777264-21sh05:41:041
2529006994536,6cyclictest2977129-21spawn06:03:172
2529006994435,6cyclictest0-21swapper/205:39:482
2529006994435,6cyclictest0-21swapper/205:39:482
2529004994436,5cyclictest3335204-21sh06:09:540
2529006994235,4cyclictest3415343-21munin-plugin-st06:25:012
2529005994237,2cyclictest0-21swapper/105:39:441
2529005994237,2cyclictest0-21swapper/105:39:441
2529005994234,5cyclictest3416839-21systemd-run06:30:011
2529004994028,10cyclictest2822632-21sh05:42:570
2529004994028,10cyclictest2822632-21sh05:42:570
2529006993933,5cyclictest2839606-21execl05:51:082
2529004993931,5cyclictest2752076-21multi.sh05:39:450
2529004993931,5cyclictest2752076-21multi.sh05:39:450
2529004993831,4cyclictest3046590-21spawn06:03:350
2529005993728,6cyclictest3124225-21spawn06:03:551
2529005993721,6cyclictest2662818-21spawn05:34:481
2529004993631,3cyclictest2535144-21cron05:25:010
2529004993626,7cyclictest2752139-21kworker/u8:6+xprtiod05:56:060
2529004993623,10cyclictest0-21swapper/005:51:080
2529005993529,3cyclictest0-21swapper/105:15:011
2529004993523,8cyclictest2407903-21cupsd06:29:480
2529005993428,3cyclictest0-21swapper/105:50:531
2529006993325,5cyclictest3419735-21munin-plugin-st06:40:002
2529004993323,8cyclictest0-21swapper/005:49:390
252900699321,25cyclictest563-21avahi-daemon06:34:452
2529006993122,6cyclictest2407906-21cups-browsed06:19:422
2529005993124,4cyclictest2841197-21fstime05:56:361
2529005993124,4cyclictest1165-21mta-sts-daemon06:39:371
2529006993025,2cyclictest0-21swapper/205:20:012
2529006993024,3cyclictest0-21swapper/205:09:472
2529005993023,4cyclictest3415341-21cron06:25:011
252900599301,26cyclictest2533933-21fstime05:24:441
2529004993024,4cyclictest0-21swapper/005:15:020
2529004993023,4cyclictest0-21swapper/005:20:010
2529005992921,4cyclictest0-21swapper/106:34:451
2529004992924,2cyclictest0-21swapper/006:40:000
2529006992821,4cyclictest2534409-21latency05:24:402
2529005992822,3cyclictest0-21swapper/105:20:011
2529004992823,3cyclictest3417821-21proc_pri06:34:490
2529004992822,4cyclictest2662818-21spawn05:34:470
2529005992718,6cyclictest2530349-21sed05:09:531
2529004992721,3cyclictest0-21swapper/006:24:390
2529004992718,7cyclictest1168-21mta-sts-daemon05:28:210
2529006992619,4cyclictest1168-21mta-sts-daemon05:12:272
2529006992618,5cyclictest1166-21mta-sts-daemon05:26:452
252900599261,21cyclictest2535980-21pipe05:29:451
2529004992622,3cyclictest0-21swapper/005:05:010
252900599245,14cyclictest2529016-21munin-run05:05:011
2529005992415,6cyclictest792-21munin-node06:18:471
252900799235,9cyclictest0-21swapper/306:04:483
252900799234,11cyclictest0-21swapper/306:06:343
252900799233,12cyclictest0-21swapper/305:56:113
252900799223,10cyclictest0-21swapper/305:49:503
2529006992215,5cyclictest3415918-21gltestperf06:29:392
2529004992217,3cyclictest2502326-21kworker/u8:1-xprtiod05:09:360
252900499211,17cyclictest3413155-21/usr/sbin/munin06:19:420
252900799202,10cyclictest0-21swapper/305:42:393
252900799202,10cyclictest0-21swapper/305:42:393
252900799193,11cyclictest0-21swapper/305:39:463
252900799193,11cyclictest0-21swapper/305:39:463
252900799193,10cyclictest0-21swapper/305:05:013
2529006991914,2cyclictest0-21swapper/205:05:022
252900799181,9cyclictest0-21swapper/305:34:463
252900799174,6cyclictest0-21swapper/305:50:353
252900799173,9cyclictest0-21swapper/306:12:213
252900799172,9cyclictest0-21swapper/305:09:373
252900799162,7cyclictest0-21swapper/305:29:463
252900799162,10cyclictest0-21swapper/306:29:453
252900799152,8cyclictest0-21swapper/306:24:453
252900799152,7cyclictest0-21swapper/306:34:453
252900799151,7cyclictest0-21swapper/305:24:443
252900799142,6cyclictest0-21swapper/306:39:383
252900799133,6cyclictest0-21swapper/306:20:013
252900799122,6cyclictest0-21swapper/305:19:463
252900799121,5cyclictest0-21swapper/305:10:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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