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2025-09-15 - 13:58

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 100 highest latencies:
System rack2slot7s.osadl.org (updated Mon Sep 15, 2025 12:40:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3591363995345,5cyclictest3695741-21idleruntime-cro11:00:012
3591362995343,6cyclictest3667896-21ssh10:15:021
3591362995343,6cyclictest3667896-21ssh10:15:021
3591361994941,4cyclictest151ktimers/008:23:340
359136399483,41cyclictest3707237-21ssh11:18:402
3591361994843,2cyclictest0-21swapper/009:00:010
3591363994738,6cyclictest957-21mta-sts-daemon10:33:352
3591362994739,4cyclictest0-21swapper/109:14:041
3591362994739,4cyclictest0-21swapper/109:14:041
359136299472,41cyclictest3679051-21ssh10:33:321
3591363994534,3cyclictest0-21swapper/211:43:412
3591363994534,3cyclictest0-21swapper/211:43:412
359136299456,29cyclictest3691420-21ssh10:53:341
359136299452,35cyclictest3704139-21ssh11:13:541
3591361994521,21cyclictest3633844-21munin-plugin-st09:20:010
359136399443,30cyclictest3740790-21ssh12:13:402
3591362994431,9cyclictest3639458-21wc09:28:411
3591361994423,19cyclictest0-21swapper/009:38:280
359136199442,24cyclictest3627336-21diskmemload10:54:540
359136199441,4cyclictest0-21swapper/010:56:280
3591362994333,6cyclictest421-21avahi-daemon12:18:421
3591362994333,4cyclictest0-21swapper/111:43:361
3591362994333,4cyclictest0-21swapper/111:43:361
359136199438,32cyclictest3622302-21ntpq08:53:410
359136199438,32cyclictest3622302-21ntpq08:53:410
359136199433,35cyclictest3688206-21ntpq10:48:370
359136199432,37cyclictest3747001-21ntpq12:23:360
359136199432,37cyclictest3616228-21ntpq08:33:330
359136199432,27cyclictest3713364-21ssh11:28:360
359136199431,13cyclictest3614780-21ntpq08:28:530
3591362994233,6cyclictest3652357-21unixbench_multi09:48:461
3591362994230,4cyclictest0-21swapper/111:03:411
359136199424,32cyclictest3607261-21ntpq08:03:360
359136199424,32cyclictest3607261-21ntpq08:03:360
3591361994235,4cyclictest3603367-21systemd-run07:50:010
3591361994227,5cyclictest2796743-21cups-browsed10:20:010
3591361994227,5cyclictest2796743-21cups-browsed10:20:010
359136199422,36cyclictest3595234-21ntpq07:23:320
359136199422,35cyclictest3743862-21ntpq12:18:330
359136199422,35cyclictest3598248-21ntpq07:33:350
359136199421,37cyclictest3636018-21ntpq09:23:340
3591363994133,5cyclictest3692480-21systemd-run10:55:012
3591363994133,4cyclictest0-21swapper/211:38:402
3591363994133,3cyclictest0-21swapper/211:33:382
359136399411,31cyclictest3685179-21ssh10:43:342
3591362994131,6cyclictest421-21avahi-daemon12:38:511
359136199416,30cyclictest3657974-21ssh09:58:380
359136199412,35cyclictest3723064-21ntpq11:43:370
359136199412,35cyclictest3723064-21ntpq11:43:370
359136199412,35cyclictest3601318-21ntpq07:43:380
359136199412,34cyclictest3700957-21ntpq11:08:330
359136199411,4cyclictest3730988-21ssh11:56:130
359136199411,4cyclictest3682233-21ntpq10:38:390
359136199411,36cyclictest3750229-21ntp_kernel_pll_12:28:370
359136199411,10cyclictest3697863-21ntpq11:03:400
3591363994032,5cyclictest3627336-21diskmemload10:05:022
359136199408,28cyclictest3753078-21ssh12:33:370
359136199402,34cyclictest3611748-21ntpq08:18:440
359136199402,34cyclictest3592320-21ntpq07:13:400
359136199402,33cyclictest3740738-21ntpq12:13:380
3591361994020,17cyclictest3603889-21fschecks_time07:53:270
3591361994020,17cyclictest3603889-21fschecks_time07:53:270
359136199401,9cyclictest3651239-21aten_r2power_vo09:48:240
359136199401,4cyclictest3737389-21ntpq12:08:310
359136199401,4cyclictest3704175-21ntpq11:13:560
359136199401,36cyclictest3642380-21ntpq09:33:320
359136199401,34cyclictest3596768-21ntpq07:28:370
3591361994011,26cyclictest0-21swapper/007:58:340
3591361994011,24cyclictest3627336-21diskmemload11:36:590
359136199401,11cyclictest3710368-21ntpq11:23:360
359136199401,11cyclictest3620821-21ntpq08:48:390
3591362993928,8cyclictest2796743-21cups-browsed10:38:351
359136199398,29cyclictest3724801-21ssh11:46:360
3591361993927,9cyclictest0-21swapper/012:38:270
359136199391,9cyclictest3629899-21ntpq09:13:490
359136199391,9cyclictest3629899-21ntpq09:13:490
359136199391,8cyclictest3729389-21ntpq11:53:410
3591361993917,19cyclictest957-21mta-sts-daemon07:38:260
359136199391,5cyclictest3707078-21ntpq11:18:330
359136199391,4cyclictest3666854-21ntpq10:13:390
359136199391,4cyclictest3666854-21ntpq10:13:390
359136199391,4cyclictest3608811-21ntpq08:08:350
359136199391,11cyclictest3619254-21ntpq08:43:360
359136199391,10cyclictest3653561-21ssh09:51:440
359136199390,36cyclictest3685003-21ssh10:43:300
359136199390,36cyclictest3617824-21ntpq08:38:400
3591363993830,5cyclictest3640349-21systemd-run09:30:012
3591363993829,6cyclictest3625845-21grep09:05:002
3591363993828,5cyclictest957-21mta-sts-daemon08:03:342
3591363993828,5cyclictest957-21mta-sts-daemon08:03:342
359136399381,30cyclictest3645448-21ssh09:38:372
3591362993831,4cyclictest0-21swapper/109:00:011
3591362993830,5cyclictest3599385-21fschecks_time07:38:271
3591362993829,5cyclictest1-21systemd12:15:021
3591361993828,7cyclictest453-21systemd-logind09:45:020
359136199382,3cyclictest3626716-21ntpq09:08:340
359136199382,3cyclictest3626716-21ntpq09:08:340
359136199382,3cyclictest3610230-21ntpq08:13:320
359136199381,9cyclictest3679096-21ntpq10:33:340
359136199381,9cyclictest3664635-21ssh10:09:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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