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2026-03-10 - 22:47

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 Tue Mar 10, 2026 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1360021380,5sleep113604-21missed_timers11:06:401
1360021380,5sleep113604-21missed_timers11:06:401
2642721360,1sleep10-21swapper/111:41:371
2642721360,1sleep10-21swapper/111:41:371
814121300,3sleep30-21swapper/310:51:423
814121300,3sleep30-21swapper/310:51:423
3159621250,3chrt0-21swapper/309:01:403
49002890,2sleep14899-21sshd09:16:411
49002890,2sleep14899-21sshd09:16:411
49002890,2sleep14899-21sshd09:16:411
240252870,2chrt24027-21latency_hist11:36:271
240252870,2chrt24027-21latency_hist11:36:271
291982860,3chrt0-21swapper/308:56:373
291982860,3chrt0-21swapper/308:56:373
282372860,3sleep30-21swapper/311:46:383
282372860,3sleep30-21swapper/311:46:383
323252740,4sleep30-21swapper/311:56:393
323252740,4sleep30-21swapper/311:56:393
228122680,2sleep30-21swapper/311:31:383
228122680,2sleep30-21swapper/311:31:383
65572640,3sleep30-21swapper/307:56:313
65572640,3sleep30-21swapper/307:56:313
278342640,4sleep30-21swapper/311:46:313
278342640,4sleep30-21swapper/311:46:313
211372620,2chrt0-21swapper/111:26:421
211372620,2chrt0-21swapper/111:26:421
261672610,5sleep30-21swapper/311:41:353
261672610,5sleep30-21swapper/311:41:353
69172590,3chrt0-21swapper/309:21:463
278882560,4chrt0-21swapper/208:51:422
20702560,3sleep20-21swapper/209:11:232
20702560,3sleep20-21swapper/209:11:232
265852530,3sleep20-21swapper/207:21:412
265852530,3sleep20-21swapper/207:21:412
151992520,3sleep20-21swapper/212:36:462
151992520,3sleep20-21swapper/212:36:462
151992520,3sleep20-21swapper/212:36:462
264352490,3sleep20-21swapper/210:16:242
264352490,3sleep20-21swapper/210:16:242
147892490,3chrt0-21swapper/308:16:413
147892490,3chrt0-21swapper/308:16:413
216432480,3sleep20-21swapper/211:26:472
216432480,3sleep20-21swapper/211:26:472
132442470,3sleep20-21swapper/208:11:462
132442470,3sleep20-21swapper/208:11:462
189162460,2chrt18917-21timerwakeupswit08:26:470
54382430,3sleep20-21swapper/209:16:462
54382430,3sleep20-21swapper/209:16:462
54382430,3sleep20-21swapper/209:16:462
288622430,3sleep30-21swapper/308:56:253
235612430,2sleep023624-21uniq08:41:360
235612430,2sleep023624-21uniq08:41:360
60942420,2sleep16164-21tail10:46:431
60942420,2sleep16164-21tail10:46:431
320702420,1chrt32073-21unixbench-2d09:01:461
150912420,3chrt0-21swapper/311:11:363
150912420,3chrt0-21swapper/311:11:363
314682410,1sleep10-21swapper/111:56:251
284872400,2sleep10-21swapper/111:46:401
284872400,2sleep10-21swapper/111:46:401
79372370,2chrt0-21swapper/212:16:482
79372370,2chrt0-21swapper/212:16:482
68782360,3sleep30-21swapper/312:16:373
68782360,3sleep30-21swapper/312:16:373
271892350,3sleep30-21swapper/310:16:373
271892350,3sleep30-21swapper/310:16:373
22279993531,3cyclictest21118-21gzip11:26:410
22279993531,3cyclictest21118-21gzip11:26:410
22279993530,3cyclictest11465-21latency_hist09:36:240
22279993530,3cyclictest11465-21latency_hist09:36:240
307512340,2chrt0-21swapper/307:31:473
22280993328,3cyclictest4550-21latency_hist07:51:251
22280993328,3cyclictest4550-21latency_hist07:51:251
22280993328,3cyclictest16565-21missed_timers08:21:401
22280993225,5cyclictest1742-21tr07:41:411
22279993226,4cyclictest729-21dbus-daemon10:41:240
22279993226,4cyclictest729-21dbus-daemon10:41:240
90052310,3chrt9009-21gltestperf12:21:371
90052310,3chrt9009-21gltestperf12:21:371
296282310,3sleep20-21swapper/208:56:402
296282310,3sleep20-21swapper/208:56:402
22280993124,5cyclictest21346-21latency_hist08:36:231
22280993124,5cyclictest21346-21latency_hist08:36:231
22279993127,3cyclictest8426-21run-parts12:21:240
22279993127,3cyclictest8426-21run-parts12:21:240
22279993125,4cyclictest30461-21grep11:51:410
2228299301,9cyclictest15074-21chrt09:44:402
2228299301,9cyclictest15074-21chrt09:44:402
22280993024,5cyclictest19086-21kernelversion11:21:411
22280993024,5cyclictest19086-21kernelversion11:21:411
22280993024,4cyclictest1346-21avahi-daemon10:11:461
22280993024,4cyclictest1346-21avahi-daemon10:11:461
22280993023,5cyclictest12190-21kernelversion09:36:401
22280993023,5cyclictest12190-21kernelversion09:36:401
22280993021,4cyclictest1346-21avahi-daemon09:51:441
22280993021,4cyclictest1346-21avahi-daemon09:51:441
22279993024,4cyclictest654-21gltestperf09:06:370
22279993024,4cyclictest654-21gltestperf09:06:370
22280992923,3cyclictest29595-21latency08:56:401
22280992923,3cyclictest29595-21latency08:56:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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