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2026-06-01 - 21:08

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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: 100 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 100 highest latencies:
System rack4slot1s.osadl.org (updated Mon Jun 01, 2026 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193092920,2sleep30-21swapper/311:17:543
193092920,2sleep30-21swapper/311:17:543
277112870,2chrt27714-21unixbench_singl11:38:021
277112870,2chrt27714-21unixbench_singl11:38:021
277112870,2chrt27714-21unixbench_singl11:38:021
150682760,3sleep30-21swapper/309:38:043
150682760,3sleep30-21swapper/309:38:043
171162690,3sleep10-21swapper/111:12:491
171162690,3sleep10-21swapper/111:12:491
177862680,2chrt17771-21missed_timers11:12:571
177862680,2chrt17771-21missed_timers11:12:571
230952640,3sleep30-21swapper/308:33:043
230952640,3sleep30-21swapper/308:33:043
18352630,3sleep30-21swapper/307:37:563
18352630,3sleep30-21swapper/307:37:563
193832600,2chrt19384-21ls09:52:411
193832600,2chrt19384-21ls09:52:411
310862570,3sleep3431rcuc/310:22:543
310862570,3sleep3431rcuc/310:22:543
54672540,3sleep20-21swapper/209:13:032
54672540,3sleep20-21swapper/209:13:032
54672540,3sleep20-21swapper/209:13:032
318452540,2sleep032041-21sed10:23:050
318452540,2sleep032041-21sed10:23:050
72672520,3chrt0-21swapper/312:12:533
72672520,3chrt0-21swapper/312:12:533
72672520,3chrt0-21swapper/312:12:533
63842520,1sleep10-21swapper/109:17:521
63842520,1sleep10-21swapper/109:17:521
63842520,1sleep10-21swapper/109:17:521
117022510,2sleep20-21swapper/212:23:012
142602500,3sleep20-21swapper/209:37:552
142602500,3sleep20-21swapper/209:37:552
103472500,3sleep20-21swapper/209:27:542
103472500,3sleep20-21swapper/209:27:542
103472500,3sleep20-21swapper/209:27:542
20172490,3chrt0-21swapper/207:37:592
20172490,3chrt0-21swapper/207:37:592
144792480,2chrt14480-21sed08:12:510
144792480,2chrt14480-21sed08:12:510
58482470,3sleep20-21swapper/207:48:002
58482470,3sleep20-21swapper/207:48:002
64752460,3sleep16478-21grep12:08:051
64752460,3sleep16478-21grep12:08:051
64752460,3sleep16478-21grep12:08:051
234932450,3sleep10-21swapper/111:28:011
234932450,3sleep10-21swapper/111:28:011
95132440,3sleep3431rcuc/312:17:563
95132440,3sleep3431rcuc/312:17:563
95132440,3sleep3431rcuc/312:17:563
135102420,2sleep30-21swapper/311:02:553
296832410,3sleep30-21swapper/310:18:003
296832410,3sleep30-21swapper/310:18:003
296832410,3sleep30-21swapper/310:18:003
173022410,2sleep117303-21/usr/sbin/munin12:38:001
173022410,2sleep117303-21/usr/sbin/munin12:38:001
108982400,2sleep30-21swapper/309:28:003
108982400,2sleep30-21swapper/309:28:003
108982400,2sleep30-21swapper/309:28:003
58582390,2sleep00-21swapper/010:42:490
58582390,2sleep00-21swapper/010:42:490
151752390,2sleep20-21swapper/211:07:482
151752390,2sleep20-21swapper/211:07:482
151752390,2sleep20-21swapper/211:07:482
2453799381,8cyclictest9721-21taskset10:52:520
2453799381,8cyclictest9721-21taskset10:52:520
24537993812,24cyclictest9339-21sort09:23:020
24537993812,24cyclictest9339-21sort09:23:020
24537993812,24cyclictest9339-21sort09:23:020
2453799381,11cyclictest9520-21kernelversion12:17:560
2453799381,11cyclictest9520-21kernelversion12:17:560
2453799381,11cyclictest9520-21kernelversion12:17:560
2453799379,26cyclictest8001-21fschecks_time10:47:540
2453799379,26cyclictest8001-21fschecks_time10:47:540
24537993728,7cyclictest30220-21fschecks_count07:27:540
24537993728,7cyclictest30220-21fschecks_count07:27:540
24537993728,7cyclictest30220-21fschecks_count07:27:540
2453799372,11cyclictest12639-21cat12:27:430
2453799372,11cyclictest12639-21cat12:27:430
2453799372,11cyclictest12639-21cat12:27:430
2453799371,11cyclictest7684-21latency12:12:570
2453799371,11cyclictest7684-21latency12:12:570
2453799371,11cyclictest7684-21latency12:12:570
2453799371,11cyclictest27030-21cpu10:12:500
2453799371,11cyclictest27030-21cpu10:12:500
2453799371,11cyclictest27030-21cpu10:12:500
175732370,2sleep016488-21/usr/sbin/munin12:38:040
175732370,2sleep016488-21/usr/sbin/munin12:38:040
175732370,2sleep016488-21/usr/sbin/munin12:38:040
24538993627,7cyclictest512-21ls09:02:411
24538993627,7cyclictest512-21ls09:02:411
2453799361,9cyclictest28636-21fschecks_time11:42:530
2453799361,9cyclictest28636-21fschecks_time11:42:530
2453799361,12cyclictest7233-21pluginstate09:18:010
2453799361,12cyclictest20467-21tail08:27:550
2453799361,12cyclictest20467-21tail08:27:550
2453799361,12cyclictest20467-21tail08:27:550
2453799361,11cyclictest1111-21cron07:37:420
2453799361,10cyclictest749-21runrttasks08:24:360
2453799361,10cyclictest749-21runrttasks08:24:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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