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2026-05-10 - 05:52

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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 rackbslot5s.osadl.org (updated Sun May 10, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2726354995135,11cyclictest391ktimers/321:25:113
2726344995136,11cyclictest231ktimers/100:35:131
2726349995027,18cyclictest0-21swapper/200:05:242
2726340994943,4cyclictest2769452-21kworker/u8:2+events_unbound21:12:580
2726349994719,25cyclictest2813011-21cron23:20:002
2726354994637,6cyclictest2736646-21grep19:35:253
2726344994633,9cyclictest231ktimers/120:05:131
2726340994537,6cyclictest2835206-21kworker/u8:0+events_unbound00:28:240
272634999441,11cyclictest2836039-21/usr/sbin/munin00:25:202
2726349994330,8cyclictest2793672-21sshd22:23:032
2726349994314,26cyclictest2794644-21ntp_states22:25:202
272634999423,8cyclictest2776424-21sshd21:33:242
272634999423,7cyclictest2728650-21df19:15:042
272634999421,9cyclictest2788112-21/usr/sbin/munin22:05:262
272634999421,9cyclictest2788112-21/usr/sbin/munin22:05:262
272634999421,8cyclictest2817111-21/usr/sbin/munin23:30:182
272634999421,10cyclictest2789482-21/usr/sbin/munin22:10:212
272634999411,9cyclictest2826513-21cron23:56:012
272634999411,9cyclictest2766680-21/usr/sbin/munin21:05:162
272634999411,9cyclictest2747694-21/usr/sbin/munin20:10:132
272634999411,8cyclictest2820856-21/usr/sbin/munin23:40:192
272634999411,8cyclictest2818940-21/usr/sbin/munin23:35:172
272634999411,8cyclictest2734253-21/usr/sbin/munin19:30:172
272634999411,10cyclictest2758768-21/usr/sbin/munin20:40:252
272634999409,4cyclictest2781675-21cron21:50:002
2726349994030,7cyclictest0-21swapper/223:00:012
272634999401,9cyclictest2834541-21/usr/sbin/munin00:20:242
272634999401,8cyclictest2764269-21cron20:56:002
2726349994013,24cyclictest0-21swapper/223:20:162
2726349994010,4cyclictest2771903-21fschecks_time21:20:162
2726344994031,5cyclictest2795550-21munin-plugin-st22:30:011
2726344994027,9cyclictest231ktimers/122:35:111
2726344994027,9cyclictest231ktimers/122:35:111
2726340994033,4cyclictest2740540-21sh19:50:010
2726354993933,4cyclictest2728001-21idleruntime-cro19:15:003
2726354993929,7cyclictest2819621-21grep23:35:253
272634999398,5cyclictest2785052-21seq21:59:382
2726349993922,13cyclictest0-21swapper/200:39:592
272634999391,9cyclictest2733328-21users19:25:272
272634999391,8cyclictest2751705-21/usr/sbin/munin20:20:232
2726349993912,24cyclictest2833915-21sed00:20:002
272634999391,11cyclictest2760315-21ntp_states20:45:242
272634999391,11cyclictest2735986-21irqstats19:35:172
272634999391,10cyclictest2795543-21apt-get22:30:052
2726344993930,5cyclictest2802579-21munin-plugin-st22:50:001
272634999382,10cyclictest2808600-21sed23:05:202
272634999381,9cyclictest2827222-21/usr/sbin/munin00:00:152
272634999381,9cyclictest2816152-21/usr/sbin/munin23:25:262
272634999381,9cyclictest2740859-21/usr/sbin/munin19:50:142
272634999381,9cyclictest2740859-21/usr/sbin/munin19:50:132
272634999381,7cyclictest2764860-21/usr/sbin/munin21:00:232
272634999381,7cyclictest2742607-21grep19:55:172
2726349993816,19cyclictest2749445-21cut20:15:172
2726349993813,21cyclictest0-21swapper/222:00:262
2726349993813,21cyclictest0-21swapper/222:00:262
2726349993812,22cyclictest0-21swapper/221:40:172
272634999381,11cyclictest2837906-21ntp_states00:30:222
272634999381,11cyclictest2837906-21ntp_states00:30:212
272634999381,11cyclictest2782361-21meminfo21:50:172
272634999381,11cyclictest2773961-21ntp_states21:25:192
272634999381,10cyclictest2831798-21cron00:13:002
272634999381,10cyclictest2807433-21unixbench_multi23:00:252
272634999381,10cyclictest2800421-21tail22:40:242
2726349993810,25cyclictest0-21swapper/220:25:022
2726340993827,7cyclictest2810884-21grep23:10:240
2726340993822,6cyclictest131rcu_preempt23:25:010
2726340993821,11cyclictest131rcu_preempt23:19:260
2726340993810,21cyclictest131rcu_preempt23:55:170
2726354993729,5cyclictest2772679-21grep21:20:253
272634999379,9cyclictest2769264-21grep21:10:262
272634999378,7cyclictest2770362-21cat21:15:182
272634999372,8cyclictest0-21swapper/220:50:212
272634999372,8cyclictest0-21swapper/220:50:212
272634999372,5cyclictest2744724-21grep20:00:192
272634999371,9cyclictest2798008-21/usr/sbin/munin22:35:162
272634999371,9cyclictest2798008-21/usr/sbin/munin22:35:162
272634999371,9cyclictest2739515-21meminfo19:45:192
272634999371,8cyclictest2737914-21grep19:40:202
272634999371,7cyclictest2822172-21fschecks_time23:45:152
272634999371,10cyclictest2809832-21/usr/sbin/munin23:10:102
2726349993710,23cyclictest0-21swapper/219:15:012
2726340993729,3cyclictest0-21swapper/020:10:020
2726354993630,4cyclictest2702262-21kworker/u8:3+events_unbound19:22:433
2726354993626,6cyclictest0-21swapper/323:00:253
272634999369,3cyclictest2823684-21/usr/sbin/munin23:50:232
272634999361,9cyclictest2756894-21ntp_states20:35:212
272634999361,9cyclictest2755009-21sed20:30:182
272634999361,9cyclictest2746334-21meminfo20:05:182
272634999361,9cyclictest2731627-21users19:20:252
2726344993627,5cyclictest2790428-21idleruntime-cro22:15:001
2726344993626,7cyclictest2821316-21grep23:40:241
2726344993624,8cyclictest2814305-21grep23:20:261
2726354993527,4cyclictest0-21swapper/319:50:163
2726354993527,4cyclictest0-21swapper/319:50:153
272634999352,6cyclictest2792117-21cron22:20:012
272634999351,8cyclictest2802795-21/usr/sbin/munin22:50:122
2726340993528,4cyclictest2838815-21munin-plugin-st00:34:590
2726340993528,4cyclictest2838815-21munin-plugin-st00:34:590
2726340993520,5cyclictest131rcu_preempt23:05:000
2726340993517,10cyclictest131rcu_preempt00:37:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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