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2026-05-07 - 19:55

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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 rack7slot7s.osadl.org (updated Thu May 07, 2026 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6276210164,33sleep00-21swapper/007:07:500
644429873,20sleep10-21swapper/107:10:001
613329166,20sleep20-21swapper/207:05:592
621928471,9sleep30-21swapper/307:07:053
47972650,0sleep10-21swapper/109:31:481
652099390,38cyclictest0-21swapper/009:20:110
652099291,19cyclictest32515-21df11:05:150
653199270,27cyclictest0-21swapper/209:12:012
6527992726,1cyclictest0-21swapper/110:06:141
652099270,20cyclictest0-21swapper/009:28:520
652799260,25cyclictest0-21swapper/110:20:541
652099250,1cyclictest0-21swapper/011:16:110
652099240,23cyclictest0-21swapper/012:00:500
653199231,20cyclictest475-21in:imuxsock07:15:102
653199230,17cyclictest0-21swapper/207:35:132
652099230,2cyclictest0-21swapper/011:02:490
652099230,0cyclictest0-21swapper/012:32:100
6527992221,1cyclictest0-21swapper/109:40:281
652099220,17cyclictest0-21swapper/010:59:540
212822210,0sleep10-21swapper/110:58:471
6534992019,1cyclictest0-21swapper/310:50:343
6531992018,2cyclictest55750irq/128-enp2s0-10:36:592
6531992017,2cyclictest55750irq/128-enp2s0-10:43:542
653199200,20cyclictest0-21swapper/211:48:262
653199200,1cyclictest0-21swapper/209:59:522
652799203,15cyclictest31439-21kworker/1:211:10:121
652799202,16cyclictest0-21swapper/109:45:241
6531991917,2cyclictest55850irq/129-enp2s0-09:23:162
652799191,18cyclictest31583-21diskmemload11:05:481
652799190,0cyclictest0-21swapper/110:49:261
6520991911,5cyclictest225-21systemd-journal10:43:150
652099190,18cyclictest0-21swapper/012:38:240
6534991817,1cyclictest55850irq/129-enp2s0-10:01:293
653199181,16cyclictest0-21swapper/208:40:152
652099183,8cyclictest11919-21perf10:15:000
6534991716,1cyclictest10753-21smartctl11:30:243
6534991715,2cyclictest0-21swapper/309:58:413
653499170,17cyclictest0-21swapper/310:25:163
6531991715,2cyclictest55550irq/126-enp2s0-11:15:532
6531991714,2cyclictest55750irq/128-enp2s0-09:16:552
6527991716,1cyclictest0-21swapper/112:35:401
6527991714,2cyclictest25-21ksoftirqd/112:03:231
652799170,17cyclictest0-21swapper/110:34:431
652799170,16cyclictest0-21swapper/111:37:271
652099172,1cyclictest0-21swapper/009:37:400
652099170,17cyclictest0-21swapper/010:29:460
652099170,0cyclictest0-21swapper/011:51:350
6531991615,1cyclictest392-21hddtemp_smartct11:05:172
6531991614,1cyclictest55650irq/127-enp2s0-12:36:242
6531991614,1cyclictest55650irq/127-enp2s0-10:11:342
653199160,16cyclictest0-21swapper/210:50:132
652799160,1cyclictest0-21swapper/109:58:471
652799160,13cyclictest0-21swapper/111:18:211
652799160,12cyclictest0-21swapper/112:25:031
652099163,1cyclictest141rcu_preempt10:24:410
652099160,2cyclictest0-21swapper/012:15:410
653499152,9cyclictest29567-21aten2_r7power_p09:05:163
6534991513,2cyclictest0-21swapper/311:45:513
653499150,15cyclictest0-21swapper/309:50:043
653199156,3cyclictest32-21ksoftirqd/210:15:072
653199156,3cyclictest225-21systemd-journal08:45:002
6531991514,1cyclictest55750irq/128-enp2s0-09:44:192
653199150,4cyclictest0-21swapper/211:32:152
653199150,1cyclictest0-21swapper/211:29:342
653199150,15cyclictest0-21swapper/210:46:352
653199150,15cyclictest0-21swapper/209:46:212
653199150,15cyclictest0-21swapper/209:35:422
652799157,5cyclictest11321-21munin-run07:19:591
6527991513,1cyclictest55850irq/129-enp2s0-11:33:251
6527991510,4cyclictest38150irq/131-snd_hda09:15:311
652799150,14cyclictest0-21swapper/109:05:221
652099152,7cyclictest22058-21munin-run08:50:000
6520991515,0cyclictest0-21swapper/010:09:300
652099150,1cyclictest0-21swapper/010:39:000
652099150,0cyclictest0-21swapper/009:11:100
101382150,0chrt0-21swapper/010:51:370
653499148,5cyclictest30159-21apt-config10:45:023
6534991413,1cyclictest0-21swapper/312:13:153
6534991411,2cyclictest1277-21chrt11:25:143
653499140,11cyclictest0-21swapper/309:32:003
653199142,11cyclictest17753-21ssh10:56:012
6531991411,2cyclictest25356-21cron11:40:002
6531991410,2cyclictest32-21ksoftirqd/211:11:082
653199140,12cyclictest0-21swapper/210:25:142
652799149,4cyclictest25961-21tail11:20:211
652799140,3cyclictest0-21swapper/112:34:511
652799140,1cyclictest0-21swapper/111:50:131
652799140,13cyclictest0-21swapper/110:15:131
652099140,13cyclictest0-21swapper/012:23:300
6534991311,1cyclictest15619-21df10:55:173
6534991310,2cyclictest8469-21sed07:10:253
6534991310,2cyclictest26715-21grep09:45:133
6534991310,2cyclictest23083-21sed08:50:163
6534991310,2cyclictest14692-21grep07:25:163
653499130,0cyclictest0-21swapper/309:18:383
653199133,2cyclictest31583-21diskmemload12:20:192
6531991311,1cyclictest55850irq/129-enp2s0-12:02:332
6531991310,2cyclictest5741-21awk12:25:202
6531991310,2cyclictest2529-21grep08:05:272
653199130,1cyclictest0-21swapper/211:03:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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