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2025-04-03 - 16:16

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 50 highest latencies:
System rack5slot7s.osadl.org (updated Thu Apr 03, 2025 12:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25829224542196,97sleep00-21swapper07:08:280
260459917519,124cyclictest6391-21apt-get12:35:210
260459916517,103cyclictest26250-21diskstats07:10:320
260459916313,125cyclictest3962-21/usr/sbin/munin08:10:320
260459916015,23cyclictest1119-21apt-get07:56:040
260459916014,121cyclictest21981-21apt-get10:21:310
260459915813,29cyclictest29763-21cstates07:30:290
260459915813,120cyclictest5811-21/usr/sbin/munin08:20:540
260459915730,18cyclictest0-21swapper10:50:580
260459915712,120cyclictest5562-21cat12:30:040
260459915515,25cyclictest10881-21apt09:00:010
260459915512,28cyclictest3062-21apt-get08:05:190
260459915416,24cyclictest32375-21munin-run11:40:020
260459915413,29cyclictest31166-21/usr/sbin/munin11:31:420
260459915413,120cyclictest6905-21ntpq08:30:520
260459915413,118cyclictest2995-21irqstats12:10:340
260459915340,91cyclictest17153-21/usr/sbin/munin09:40:420
260459915314,27cyclictest19350-21head09:56:040
260459915313,29cyclictest13754-21ps09:15:530
260459915224,21cyclictest0-21swapper08:01:030
260459915221,104cyclictest11801-21apt-get09:05:190
260459915217,24cyclictest26838-21memory10:55:420
260459915217,23cyclictest27592-21irqstats11:00:410
260459915217,111cyclictest4291-21cron12:17:000
260459915216,38cyclictest7519-21df_inode08:35:310
260459915116,20cyclictest8260-21apt-get08:40:170
260459915111,26cyclictest21699-21fgrep10:15:570
260459915018,27cyclictest2146-21memory12:00:450
260459915015,25cyclictest31416-21diskstats07:40:340
260459915015,21cyclictest15872-21apt-get09:36:370
260459915014,113cyclictest32099-21apt-get07:45:150
260459914916,35cyclictest12703-21diskstats09:10:320
260459914915,108cyclictest19660-21df10:00:270
260459914911,37cyclictest20438-21latency_hist10:10:050
260459914828,97cyclictest23419-21if_eth010:30:440
260459914817,107cyclictest29138-21memory07:25:440
260459914816,106cyclictest425-21/usr/sbin/munin07:51:010
260459914814,38cyclictest18261-21ntp_states09:50:480
260459914814,19cyclictest5142-21munin-run12:25:040
260459914813,22cyclictest27989-21modprobe07:20:020
260459914812,96cyclictest6123-21wc12:31:020
260459914811,113cyclictest1642-21modprobe11:55:000
260459914810,114cyclictest24477-21grep10:35:520
260459914774,34cyclictest9498-21df_inode08:50:320
260459914717,29cyclictest14328-21diskstats09:20:340
260459914712,115cyclictest32761-21grep11:40:470
260459914712,111cyclictest30800-21ntp_states07:35:520
260459914711,113cyclictest15619-21awk09:31:070
260459914620,27cyclictest28334-21apt-get11:10:170
260459914619,26cyclictest24979-21df10:40:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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