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2026-08-03 - 21:52

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 Aug 03, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2101221220,2chrt21010-21memory08:53:540
2101221220,2chrt21010-21memory08:53:540
731021050,2sleep10-21swapper/112:38:431
731021050,2sleep10-21swapper/112:38:431
197032860,3chrt0-21swapper/311:43:533
197032860,3chrt0-21swapper/311:43:533
241702820,3sleep30-21swapper/309:03:503
241702820,3sleep30-21swapper/309:03:503
185802760,1sleep118655-21needreboot10:13:561
185802760,1sleep118655-21needreboot10:13:561
243702750,3chrt0-21swapper/109:03:521
243702750,3chrt0-21swapper/109:03:521
270702690,2chrt27068-21if_wlan007:43:510
270702690,2chrt27068-21if_wlan007:43:510
100092670,3chrt0-21swapper/111:18:511
100092670,3chrt0-21swapper/111:18:511
70542650,2sleep30-21swapper/311:09:003
147732640,3chrt14777-21kernelversion10:03:541
147732640,3chrt14777-21kernelversion10:03:541
323372600,3sleep20-21swapper/210:49:012
323372600,3sleep20-21swapper/210:49:012
109542530,2sleep10-21swapper/109:53:531
109542530,2sleep10-21swapper/109:53:531
316312510,9sleep1281ktimers/112:14:021
316312510,9sleep1281ktimers/112:14:021
90502480,3sleep3431rcuc/309:48:523
90502480,3sleep3431rcuc/309:48:523
236252460,2sleep023628-21wc10:28:490
236252460,2sleep023628-21wc10:28:490
249002450,2sleep30-21swapper/307:38:523
249002450,2sleep30-21swapper/307:38:523
18112450,3sleep10-21swapper/109:28:561
168052450,3sleep30-21swapper/311:34:013
168052450,3sleep30-21swapper/311:34:013
11202410,2sleep30-21swapper/312:19:033
11202410,2sleep30-21swapper/312:19:033
11202410,2sleep30-21swapper/312:19:033
207052390,4sleep30-21swapper/310:18:593
207052390,4sleep30-21swapper/310:18:593
207052390,4sleep30-21swapper/310:18:593
15641993828,7cyclictest6268-21netstat12:33:560
15641993828,7cyclictest6268-21netstat12:33:560
22142370,3sleep20-21swapper/212:23:522
22142370,3sleep20-21swapper/212:23:522
15642993527,6cyclictest5862-21threads09:39:011
15642993527,6cyclictest5862-21threads09:39:011
15642993527,6cyclictest5862-21threads09:39:011
30742340,1sleep13200-21fschecks_time09:33:521
30742340,1sleep13200-21fschecks_time09:33:521
30742340,1sleep13200-21fschecks_time09:33:521
279602340,6sleep027963-21missed_timers10:38:580
279602340,6sleep027963-21missed_timers10:38:580
209282340,2sleep00-21swapper/007:28:450
209282340,2sleep00-21swapper/007:28:450
15642993429,4cyclictest15639-21cyclictest11:39:001
15642993429,4cyclictest15639-21cyclictest11:39:001
15642993428,4cyclictest25059-21gltestperf07:38:531
15642993428,4cyclictest25059-21gltestperf07:38:531
15642993426,6cyclictest29417-21fschecks_time10:43:521
15641993425,7cyclictest21644-21kernelversion11:48:540
15641993425,7cyclictest21644-21kernelversion11:48:540
15641993424,8cyclictest25752-21threads07:39:020
15641993424,8cyclictest25752-21threads07:39:020
296842330,3sleep20-21swapper/212:09:012
296842330,3sleep20-21swapper/212:09:012
15641993328,4cyclictest1346-21avahi-daemon11:33:580
15641993328,4cyclictest1346-21avahi-daemon11:33:580
15641993327,4cyclictest1121-21unixbench_multi12:19:030
15641993327,4cyclictest1121-21unixbench_multi12:19:030
15641993327,4cyclictest1121-21unixbench_multi12:19:030
15641993326,5cyclictest11740-21/usr/sbin/munin11:23:500
15641993326,5cyclictest11740-21/usr/sbin/munin11:23:500
15642993127,3cyclictest27681-21latency_hist09:13:391
15642993127,3cyclictest27681-21latency_hist09:13:391
15642993123,6cyclictest23891-21threads07:34:021
15641993124,5cyclictest3916-21switchtime09:34:010
15641993124,5cyclictest3916-21switchtime09:34:010
15641993124,5cyclictest3916-21switchtime09:34:010
15641993123,6cyclictest8248-21cut11:13:520
15641993123,6cyclictest8248-21cut11:13:520
15642993026,3cyclictest20082-21fschecks_time10:18:521
15642993026,3cyclictest20082-21fschecks_time10:18:521
15642993026,3cyclictest20082-21fschecks_time10:18:521
15642993024,4cyclictest23433-21unixbench-2d08:59:031
15642993024,4cyclictest23433-21unixbench-2d08:59:031
15642993023,5cyclictest2168-21kernelversion08:03:551
15642993023,5cyclictest2168-21kernelversion08:03:551
15642993023,5cyclictest21528-21timerwakeupswit08:54:001
15642993023,5cyclictest21528-21timerwakeupswit08:54:001
15642993023,5cyclictest15639-21cyclictest11:53:561
15642993023,5cyclictest15639-21cyclictest11:53:561
15641993023,5cyclictest28205-21gltestperf09:13:520
15641993023,5cyclictest28205-21gltestperf09:13:520
87352290,4sleep20-21swapper/211:13:582
87352290,4sleep20-21swapper/211:13:582
189232290,3chrt0-21swapper/310:14:013
189232290,3chrt0-21swapper/310:14:013
15642992924,3cyclictest90-1pr/ttyS010:31:381
15642992924,3cyclictest90-1pr/ttyS010:31:381
15642992924,3cyclictest0-21swapper/107:48:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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