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2023-10-05 - 02:20

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 
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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 376 highest latencies:
System rack4slot6s.osadl.org (updated Thu Oct 05, 2023 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
429722440,4sleep04300-21run-parts19:40:000
37322320,3sleep0375-21latency_hist21:30:010
1467121500,3sleep014673-21latency_hist20:20:020
2460421180,3sleep024605-21sshd23:03:290
574421090,2sleep0324-21munin-node19:45:250
1649121050,3sleep016492-21grep20:25:340
2397021040,2sleep024032-21ntpq20:55:280
939021010,2sleep09392-21sort22:05:010
1208321000,4sleep012102-21/usr/sbin/munin22:15:230
70812980,4sleep07102-21ls19:50:220
160242940,3sleep016040-21uname22:30:230
103952860,4sleep010472-21cat00:15:020
29045998443,15cyclictest1428-21chrt21:33:580
325172830,3sleep032549-21latency_hist23:35:010
29045997853,14cyclictest4492-21/usr/sbin/munin23:50:340
29045997751,14cyclictest10796-21df_inode22:10:210
29045997651,13cyclictest9478-21modprobe20:00:010
29045997648,17cyclictest11894-21df_inode00:20:170
29045997648,16cyclictest2123-21/usr/sbin/munin19:30:290
29045997551,13cyclictest25973-21chrt23:09:130
29045997551,13cyclictest15455-21chrt20:21:140
29045997550,14cyclictest28521-21seq23:19:020
29045997550,14cyclictest15543-21chrt22:28:170
29045997550,13cyclictest29450-21sshd19:10:300
29045997549,15cyclictest31280-21sshd19:17:290
29045997549,14cyclictest23644-21munin-run20:55:010
29045997548,16cyclictest7138-21ntpq21:55:300
29045997535,13cyclictest10805-21grep00:15:280
2842927519,32sleep028443-21users19:05:320
29045997451,13cyclictest915-21seq19:25:330
29045997450,15cyclictest17373-21memory22:35:250
29045997450,14cyclictest30746-21tr21:20:380
29045997449,13cyclictest17527-21/usr/sbin/munin20:30:250
29045997448,17cyclictest279-21sshd23:35:300
29045997448,15cyclictest26479-21df21:05:210
29045997448,14cyclictest32589-21chrt19:22:290
29045997430,15cyclictest29436-21grep21:15:340
29045997353,11cyclictest269-21runrttasks23:59:570
29045997349,13cyclictest21276-21df_inode20:45:220
29045997348,14cyclictest269-21runrttasks21:35:130
29045997347,15cyclictest26156-21runrttasks21:04:010
29045997347,14cyclictest11060-21/usr/sbin/munin20:05:250
29045997346,15cyclictest21658-21/usr/sbin/munin22:50:420
29045997334,24cyclictest7955-21/usr/sbin/munin00:05:300
29045997248,14cyclictest6611-21seq21:54:130
29045997245,16cyclictest269-21runrttasks23:29:220
29045997244,16cyclictest2228-21runrttasks23:41:290
29045997239,23cyclictest15003-21seq00:30:390
29045997239,20cyclictest4235-21latency_hist21:45:020
29045997146,14cyclictest13920-21uptime22:20:370
29045997145,15cyclictest13190-21seq20:14:010
29045997144,18cyclictest1-21systemd00:28:240
29045997144,16cyclictest20084-21/usr/sbin/munin20:40:250
29045997144,15cyclictest2852-21seq23:45:180
29045997142,19cyclictest9854-21runrttasks22:05:340
29045997048,14cyclictest22400-21df_inode22:55:210
29045997038,18cyclictest19232-21users20:35:430
29045997036,20cyclictest4760-21seq19:40:340
29045996946,14cyclictest27447-21latency_hist23:15:010
29045996946,13cyclictest29969-21munin-run23:25:010
29045996945,15cyclictest279-21sshd21:10:300
29045996944,16cyclictest10583-21runrttasks20:03:380
29045996943,14cyclictest4852-21cat21:45:370
29045996936,21cyclictest16278-21seq00:35:360
29045996844,14cyclictest19919-21irqstats22:45:250
29045996841,15cyclictest6806-21cat00:00:260
29045996746,14cyclictest18558-21df_inode22:40:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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