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2026-07-18 - 22:35

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #4

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 highest latencies:
System rack9slot4s (updated Sat Jul 18, 2026 12:59:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
262129911291119,6cyclictest28111-21anacron07:29:591
258032619572,31sleep00-21swapper/007:21:170
257702563518,29sleep10-21swapper/107:20:581
262119912295,21cyclictest0-21swapper/007:30:000
16382840,5sleep01637-21aten_r4power_en10:35:120
26032520,6sleep0111rcuc/007:45:160
120592510,28sleep112056-21tr08:10:151
102022510,5sleep0111rcuc/009:30:200
26212994327,12cyclictest15838-21/usr/sbin/munin11:10:291
26211993822,6cyclictest3-21ksoftirqd/009:53:370
26211993822,5cyclictest3-21ksoftirqd/012:00:480
26211993820,6cyclictest3-21ksoftirqd/008:11:130
26211993722,5cyclictest3-21ksoftirqd/012:54:000
26211993721,6cyclictest3-21ksoftirqd/008:02:400
26211993721,5cyclictest3-21ksoftirqd/008:06:300
26211993621,5cyclictest3-21ksoftirqd/008:34:240
26211993620,5cyclictest3-21ksoftirqd/012:43:550
26211993620,5cyclictest3-21ksoftirqd/008:24:000
39292351,30sleep04024-21/usr/sbin/munin12:05:220
26211993520,5cyclictest3-21ksoftirqd/012:49:340
26211993520,5cyclictest3-21ksoftirqd/012:25:190
26211993519,5cyclictest3-21ksoftirqd/008:37:060
26211993513,7cyclictest3-21ksoftirqd/010:05:130
245902351,30sleep111565-21gdbus08:42:251
200142351,30sleep118127-21turbostat.cron12:49:541
134032351,30sleep113462-21ntpq12:30:231
71332341,4sleep12695-21snmpd10:49:271
318322343,11sleep12695-21snmpd10:28:141
2621299343,8cyclictest28649-21iostat11:45:201
26211993420,5cyclictest3-21ksoftirqd/008:29:050
26211993419,5cyclictest3-21ksoftirqd/007:39:340
26211993418,6cyclictest3-21ksoftirqd/011:45:400
26211993418,6cyclictest3-21ksoftirqd/011:31:520
26211993418,5cyclictest3-21ksoftirqd/010:22:460
26211993418,5cyclictest3-21ksoftirqd/010:03:360
26211993319,4cyclictest3-21ksoftirqd/011:23:450
26211993318,5cyclictest3-21ksoftirqd/007:55:290
26211993317,5cyclictest3-21ksoftirqd/012:11:530
26211993312,6cyclictest3-21ksoftirqd/011:17:000
59092321,9sleep10-21swapper/107:53:531
36032321,26sleep10-21swapper/110:40:111
28672321,4sleep12868-21cron12:02:591
26211993218,4cyclictest3-21ksoftirqd/010:46:050
26211993217,5cyclictest3-21ksoftirqd/010:52:350
26211993217,5cyclictest3-21ksoftirqd/008:19:300
26211993217,5cyclictest3-21ksoftirqd/007:41:310
26211993217,4cyclictest3-21ksoftirqd/012:19:200
26211993216,6cyclictest3-21ksoftirqd/009:37:590
2621199321,17cyclictest29998-21grep08:55:310
2621199321,13cyclictest130752cut11:05:120
284382315,4sleep122-21ksoftirqd/108:53:241
26211993116,5cyclictest3-21ksoftirqd/011:01:220
26211993116,5cyclictest3-21ksoftirqd/010:18:430
26211993116,5cyclictest3-21ksoftirqd/008:46:010
26211993115,6cyclictest3-21ksoftirqd/012:24:390
26211993114,6cyclictest3-21ksoftirqd/011:12:230
26211993114,6cyclictest3-21ksoftirqd/010:12:150
2621199311,15cyclictest29931-21/usr/sbin/munin11:50:220
78882301,5sleep10-21swapper/107:59:551
2621299308,17cyclictest2225-21dbus-daemon11:40:191
2621299306,4cyclictest81rcu_preempt11:33:411
2621299305,4cyclictest81rcu_preempt10:56:311
26212993022,5cyclictest26029-21sendmail-msp11:40:001
26212993020,6cyclictest8605-21ps09:25:261
2621299301,4cyclictest81rcu_preempt12:22:161
2621299301,4cyclictest81rcu_preempt09:31:251
26211993015,5cyclictest3-21ksoftirqd/011:26:370
26211993015,5cyclictest3-21ksoftirqd/009:20:510
26211993015,5cyclictest3-21ksoftirqd/008:53:560
26211993011,6cyclictest20024-21swap09:55:300
8292291,24sleep00-21swapper/009:05:230
51352291,5sleep00-21swapper/010:43:110
320392291,5sleep10-21swapper/109:01:371
320392291,5sleep10-21swapper/109:01:371
2621299294,5cyclictest81rcu_preempt12:43:301
2621299293,4cyclictest81rcu_preempt09:35:461
26212992921,5cyclictest25013-21fschecks_count10:10:171
2621299291,4cyclictest81rcu_preempt08:33:441
2621299290,4cyclictest81rcu_preempt07:30:101
2621199298,5cyclictest0-21swapper/010:30:210
26211992916,4cyclictest3-21ksoftirqd/012:32:290
26211992916,4cyclictest3-21ksoftirqd/007:33:310
26211992914,5cyclictest3-21ksoftirqd/011:35:460
26211992914,5cyclictest3-21ksoftirqd/008:44:230
26211992910,6cyclictest10944-21cron11:00:010
220282291,5sleep10-21swapper/111:27:531
186282291,5sleep10-21swapper/109:52:571
92672281,5sleep00-21swapper/009:28:170
84942281,5sleep10-21swapper/112:17:501
54202281,5sleep00-21swapper/009:17:290
5382280,3sleep10-21swapper/107:40:161
35112281,4sleep00-21swapper/009:12:100
317062281,5sleep00-21swapper/010:26:550
308002281,5sleep10-21swapper/107:35:031
301352281,5sleep10-21swapper/108:56:321
2621299288,16cyclictest0-21swapper/109:45:291
2621299286,4cyclictest81rcu_preempt10:54:521
2621299284,4cyclictest81rcu_preempt12:54:411
2621299284,4cyclictest81rcu_preempt08:45:071
2621299283,7cyclictest5957-21wget09:20:111
2621299283,22cyclictest0-21swapper/109:59:121
2621299283,18cyclictest31806-21/usr/sbin/munin11:55:311
2621299281,6cyclictest2378-21ls07:45:131
26212992814,11cyclictest1104-21switchtime09:05:281
2621299281,24cyclictest111-21usb-storage12:26:131
2621199282,14cyclictest0-21swapper/009:48:090
26211992813,4cyclictest3-21ksoftirqd/007:50:130
2621199281,25cyclictest0-21swapper/011:55:550
226832281,5sleep10-21swapper/108:37:181
202462281,5sleep10-21swapper/111:23:511
160722281,5sleep00-21swapper/012:38:260
149152281,4sleep00-21swapper/009:43:180
52462271,5sleep10-21swapper/109:15:431
32012271,5sleep10-21swapper/110:37:551
300682271,5sleep10-21swapper/110:24:231
2621299279,6cyclictest40250irq/92-i91510:15:441
2621299276,5cyclictest81rcu_preempt08:15:161
2621299275,4cyclictest81rcu_preempt10:34:391
2621299274,3cyclictest81rcu_preempt12:07:321
2621299274,15cyclictest0-21swapper/112:10:471
26212992716,6cyclictest22-21ksoftirqd/108:06:001
2621299271,3cyclictest81rcu_preempt11:15:461
26212992710,5cyclictest40250irq/92-i91508:20:521
2621199271,8cyclictest3286-21runrttasks09:03:100
2621199271,8cyclictest3286-21runrttasks09:03:100
2621199271,13cyclictest27780-21taskset11:43:550
224292271,5sleep10-21swapper/110:03:161
161982271,5sleep10-21swapper/112:39:461
150452271,5sleep10-21swapper/109:44:411
127182271,5sleep10-21swapper/111:03:461
2621299261,5cyclictest29931-21/usr/sbin/munin11:50:151
2621299261,22cyclictest0-21swapper/108:00:311
241052261,5sleep10-21swapper/110:06:111
190632261,5sleep10-21swapper/108:28:401
2621299252,4cyclictest81rcu_preempt09:11:281
2621299252,10cyclictest13092-21aten_r4power_vo11:05:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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