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2025-04-02 - 04:35

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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: 50.5 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 376 highest latencies:
System rack5slot7s.osadl.org (updated Wed Apr 02, 2025 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14128224292186,97sleep00-21swapper19:07:190
144739917418,128cyclictest24861-21apt-get00:15:220
144739916817,25cyclictest27493-21apt-get00:35:180
144739916514,24cyclictest25347-21munin-run20:20:020
144739915813,120cyclictest13656-21/usr/sbin/munin22:51:210
144739915723,23cyclictest27305-21munin-run00:35:010
144739915712,121cyclictest15266-21sort22:56:080
144739915616,116cyclictest9267-21users22:11:000
144739915613,39cyclictest31073-21apt-get21:01:270
144739915612,43cyclictest17474-21cat23:15:420
144739915543,23cyclictest5443-21switchtime21:40:590
144739915421,27cyclictest9519-21diskstats22:15:340
144739915416,24cyclictest7801-21df_inode22:00:300
144739915410,42cyclictest15131-21grep19:11:020
144739915410,28cyclictest18729-21grep23:21:070
14473991539,120cyclictest25736-21ls20:20:460
144739915342,89cyclictest2007-21sendmail_mailst21:16:030
144739915315,29cyclictest2403-21apt-get21:20:140
144739915314,116cyclictest22806-21munin-run20:00:030
14473991529,117cyclictest24463-21unixbench_singl20:11:000
144739915211,27cyclictest1403-21grep21:12:050
144739915210,22cyclictest31167-21latency_hist21:00:100
144739915129,100cyclictest0-21swapper19:16:140
144739915122,27cyclictest17436-21diskstats19:25:330
144739915120,28cyclictest16532-21apt-get19:20:220
144739915119,106cyclictest18114-21/usr/sbin/munin19:30:400
144739915112,116cyclictest23610-21cut00:00:570
144739915032,98cyclictest20748-21latency19:45:430
144739915016,20cyclictest13650-21apt-config22:50:080
144739915012,27cyclictest5971-21cron21:50:010
144739915011,27cyclictest4007-21cron21:35:010
144739914973,37cyclictest27470-21ntpq20:35:470
144739914918,107cyclictest26811-21find20:30:530
144739914916,23cyclictest6254-21irqstats21:50:410
144739914912,24cyclictest26590-21cat00:30:050
144739914911,23cyclictest21257-21sed23:41:000
144739914911,21cyclictest12769-21/usr/sbin/munin22:40:230
144739914911,114cyclictest29038-21missed_timers20:45:470
144739914911,114cyclictest24169-21/usr/sbin/munin00:10:210
144739914910,24cyclictest22001-21mailstats23:50:530
144739914910,22cyclictest4527-21grep21:35:570
14473991489,114cyclictest25692-21/usr/sbin/munin00:20:120
144739914827,99cyclictest17049-21ls23:10:570
144739914819,103cyclictest22328-21apt-get23:55:170
144739914816,23cyclictest19015-21df_inode19:35:320
144739914814,111cyclictest11267-21diskstats22:30:270
144739914813,111cyclictest20396-21awk19:41:090
144739914811,24cyclictest16083-21grep23:01:010
144739914811,112cyclictest23952-21cron00:10:000
144739914810,113cyclictest23518-21grep20:01:030
144739914733,20cyclictest12573-21unixbench_singl22:36:020
144739914720,101cyclictest10237-21apt-get22:20:180
144739914710,113cyclictest7569-21munin-plugin-st22:00:010
144739914615,109cyclictest21422-21df_inode19:50:370
144739914613,106cyclictest29579-21/usr/sbin/munin20:50:420
14473991459,110cyclictest28004-21sshd20:40:200
144739914513,107cyclictest19276-21/usr/sbin/munin23:30:410
144739914512,110cyclictest32367-21/usr/sbin/munin21:05:440
144739914510,24cyclictest16344-21modprobe23:10:000
144739914416,29cyclictest19794-21apt-get23:35:230
144739914412,28cyclictest26332-21ls20:30:040
144739914314,21cyclictest3217-21munin-run21:30:010
144739914222,95cyclictest21416-21sshd23:48:210
144739914211,26cyclictest23742-21munin-plugin-st20:10:020
144739913817,23cyclictest11053-21munin-run22:30:020
144739913812,101cyclictest8512-21modprobe22:10:010
144739913725,18cyclictest0-21swapper23:30:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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