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2026-07-11 - 19:47

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #6

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: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack4slot6s.osadl.org (updated Sat Jul 11, 2026 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2312722710,3sleep023128-21latency_hist07:40:020
2826321400,2sleep028264-21grep10:05:130
1835521230,4chrt18350-21ntp_states07:20:220
80021200,2chrt798-21df_inode12:30:160
166221140,3chrt1663-21timerwakeupswit08:20:280
1421221140,3chrt14210-21missed_timers09:10:210
3002621120,3chrt30028-21sort10:10:290
1111621020,4sleep011131-21munin-run11:05:000
261521000,3sleep02679-21swap10:30:280
9862990,3sleep01002-21/usr/sbin/munin10:25:150
180092980,3sleep018055-21ps11:30:260
50032970,3sleep05009-21/usr/sbin/munin08:35:130
131192910,3sleep013185-21swap09:05:260
157112870,3sleep015738-21/usr/sbin/munin07:10:210
155552830,3sleep015554-21cat11:20:250
116642810,4sleep011691-21/usr/sbin/munin09:00:210
15366997643,23cyclictest28178-21/usr/sbin/munin12:10:180
15366997547,19cyclictest29746-21/usr/sbin/munin08:05:140
1531327418,32sleep015315-21cron07:10:000
15366997245,18cyclictest27199-21/usr/sbin/munin10:00:200
15366997241,20cyclictest19238-21/usr/sbin/munin09:30:140
154912710,2sleep015490-21wc09:15:200
15366997143,19cyclictest23730-21chrt09:46:060
15366997042,17cyclictest23051-21memory11:50:170
15366996944,15cyclictest2305-21ntp_states12:35:210
15366996941,18cyclictest285-21sshd10:45:300
15366996940,17cyclictest19399-21/usr/sbin/munin11:35:260
15366996938,19cyclictest25617-21latency12:00:170
15366996843,13cyclictest32430-21/usr/sbin/munin08:15:180
15366996842,16cyclictest32732-21runrttasks12:27:130
15366996842,16cyclictest26893-21irqstats12:05:170
15366996841,16cyclictest6720-21mailstats08:40:250
15366996839,17cyclictest285-21sshd07:15:280
15366996740,16cyclictest3520-21runrttasks08:29:560
15366996643,14cyclictest7733-21/usr/sbin/munin08:45:190
15366996642,13cyclictest32392-21runrttasks10:20:210
15366996641,15cyclictest18762-21runrttasks09:27:410
15366996637,19cyclictest29396-21chrt12:15:140
15366996637,16cyclictest20860-21find09:35:250
15366996542,13cyclictest3667-21cat10:35:170
15366996541,15cyclictest5392-21users10:40:300
15366996540,15cyclictest19957-21sshd07:25:290
15366996539,17cyclictest285-21sshd07:55:330
15366996538,14cyclictest16899-21ntp_states09:20:210
15366996536,19cyclictest31757-21sshd10:18:300
15366996527,14cyclictest31017-21df_inode08:10:130
15366996441,14cyclictest7959-21users10:50:300
15366996439,14cyclictest14594-21chrt11:16:530
15366996438,15cyclictest23819-21users07:40:300
15366996435,19cyclictest21630-21/usr/sbin/munin11:45:130
15366996435,17cyclictest22598-21runrttasks09:42:210
15366996429,21cyclictest25791-21/usr/sbin/munin07:50:200
15366996427,25cyclictest10110-21/usr/sbin/munin08:55:150
15366996338,15cyclictest24207-21df_inode11:55:130
15366996326,27cyclictest11538-21ntp_states11:05:220
15366996324,13cyclictest9824-21munin-run11:00:000
15366996238,14cyclictest24391-21df_inode09:50:130
15366996238,13cyclictest24807-21runrttasks07:45:250
15366996236,16cyclictest946-21ntpd08:00:230
15366996234,18cyclictest3954-21ntpq08:30:210
15366996231,20cyclictest26713-21chrt09:59:360
15366996225,22cyclictest20634-21/usr/sbin/munin07:30:230
15366996132,17cyclictest8915-21ls08:50:140
15366996131,19cyclictest216-21rs:main0
15366996039,13cyclictest30696-21df_inode12:20:140
15366996023,15cyclictest13430-21seq11:12:540
15366995727,17cyclictest16611-21memory11:25:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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