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2025-01-14 - 07:06

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 792 highest latencies:
System rack5slot7s.osadl.org (updated Tue Jan 14, 2025 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28660224412200,96sleep00-21swapper19:07:590
289359916014,123cyclictest22430-21apt-get22:01:140
289359915914,121cyclictest9683-21grep20:30:460
289359915912,124cyclictest30346-21munin-run23:00:030
289359915719,110cyclictest3474-21diskstats19:50:400
289359915718,27cyclictest4280-21apt23:45:010
289359915714,25cyclictest14914-21apt21:05:010
289359915616,23cyclictest27082-21apt-get22:35:170
289359915616,119cyclictest1497-21munin-run23:25:050
289359915613,118cyclictest9634-21apt-get00:30:130
289359915613,117cyclictest26701-21grep22:30:550
289359915613,101cyclictest32080-21ntpq19:25:480
289359915522,29cyclictest31001-21apt-get19:20:210
289359915517,113cyclictest11140-21apt00:40:010
289359915513,117cyclictest4858-21/usr/sbin/munin23:50:500
289359915433,22cyclictest22460-21http22:00:060
289359915418,113cyclictest15669-21users21:06:040
289359915417,110cyclictest27907-21apt-get22:40:170
289359915415,24cyclictest9349-21awk00:21:040
289359915414,97cyclictest20825-21munin-run21:50:010
289359915413,116cyclictest7107-21awk20:10:520
289359915412,117cyclictest12544-21snmpd23:18:150
289359915411,27cyclictest5917-21munin-run20:05:020
289359915379,51cyclictest1642-21cat19:40:010
289359915316,38cyclictest26183-21munin-run22:30:010
289359915316,26cyclictest26287-1kworker/u3:323:01:470
289359915314,114cyclictest30879-21latency_hist19:20:020
289359915313,116cyclictest13223-21head20:51:090
289359915220,27cyclictest19999-21apt-get21:40:200
289359915219,25cyclictest25351-21/usr/sbin/munin22:20:120
289359915217,107cyclictest20925-21apt-get21:50:130
289359915216,22cyclictest10877-21munin-run20:40:030
289359915214,36cyclictest11499-21/usr/sbin/munin20:41:010
289359915212,39cyclictest3470-21sendmail23:40:010
28935991518,43cyclictest13396-21sshd20:55:150
289359915138,18cyclictest0-21swapper21:11:020
289359915136,23cyclictest18527-21if_eth021:30:320
289359915135,24cyclictest31634-21kworker/u2:923:25:540
289359915120,28cyclictest7609-21apt-get20:15:220
289359915111,112cyclictest3134-21timerwakeupswit19:46:030
289359915031,96cyclictest31511-21kworker/u2:123:10:100
289359915013,22cyclictest29362-21cat22:50:560
289359915013,109cyclictest16609-21/usr/sbin/munin21:15:460
289359915012,99cyclictest9112-21awk20:21:080
289359915011,119cyclictest2565-1kworker/u3:219:56:440
28935991499,25cyclictest29714-21cron19:15:000
28935991499,119cyclictest6537-21switchtime20:06:010
289359914917,26cyclictest1959-21apt-get23:30:210
289359914917,24cyclictest23965-21memory22:10:460
289359914912,39cyclictest19749-21grep21:36:020
289359914832,22cyclictest9534-21munin-run00:30:010
289359914831,21cyclictest7791-21cat00:15:040
289359914811,27cyclictest5485-21awk23:55:390
289359914735,91cyclictest9254-21cron20:30:010
289359914732,21cyclictest7052-21sort00:10:040
289359914715,20cyclictest24522-21apt-get22:15:160
289359914714,25cyclictest8526-21users00:16:040
289359914619,24cyclictest17557-21diskstats21:20:320
289359914618,27cyclictest377-21memory19:30:480
289359914615,23cyclictest23612-21munin-run22:10:020
289359914614,106cyclictest18361-21sed21:30:060
289359914613,28cyclictest6261-21/usr/sbin/munin00:00:350
289359914519,103cyclictest1763-21apt19:40:150
289359914513,106cyclictest11790-21/usr/sbin/munin20:45:590
289359914118,100cyclictest28732-21apt22:50:010
289359914110,48cyclictest31519-21latency_hist23:09:590
289359913916,21cyclictest12544-21snmpd23:48:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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