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2026-05-24 - 12:33

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 Sun May 24, 2026 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2712721490,2sleep20-21swapper/219:52:532
2712721490,2sleep20-21swapper/219:52:532
272232950,2chrt27224-21awk22:47:471
272232950,2chrt27224-21awk22:47:471
272232950,2chrt27224-21awk22:47:471
272232950,2chrt27224-21awk22:47:471
49232850,4chrt0-21swapper/221:47:502
40002850,3sleep30-21swapper/321:42:573
40002850,3sleep30-21swapper/321:42:573
271732710,3sleep30-21swapper/319:52:553
271732710,3sleep30-21swapper/319:52:553
218102630,2sleep021996-21unixbench_singl19:37:570
218102630,2sleep021996-21unixbench_singl19:37:570
11847996051,6cyclictest1346-21avahi-daemon00:02:500
11847996051,6cyclictest1346-21avahi-daemon00:02:500
11847996051,6cyclictest1346-21avahi-daemon00:02:500
170712580,3sleep30-21swapper/323:47:393
170712580,3sleep30-21swapper/323:47:393
111962550,2chrt11195-21idleruntime20:37:471
111962550,2chrt11195-21idleruntime20:37:471
177922540,3chrt0-21swapper/323:47:513
177922540,3chrt0-21swapper/323:47:513
4752530,2sleep1680-21cat23:02:481
4752530,2sleep1680-21cat23:02:481
326232530,3sleep30-21swapper/320:07:503
326232530,3sleep30-21swapper/320:07:503
326232530,3sleep30-21swapper/320:07:503
136082500,3sleep20-21swapper/220:42:542
136082500,3sleep20-21swapper/220:42:542
111912500,2sleep10-21swapper/122:02:571
111912500,2sleep10-21swapper/122:02:571
11847994941,5cyclictest0-21swapper/000:02:390
11847994941,5cyclictest0-21swapper/000:02:390
234802480,3sleep0201rcuc/022:37:450
234802480,3sleep0201rcuc/022:37:450
176882470,3sleep20-21swapper/223:47:502
176882470,3sleep20-21swapper/223:47:502
11850994737,5cyclictest0-21swapper/100:02:471
11850994737,5cyclictest0-21swapper/100:02:471
11850994737,5cyclictest0-21swapper/100:02:471
266632430,3sleep30-21swapper/300:12:483
266632430,3sleep30-21swapper/300:12:483
266632430,3sleep30-21swapper/300:12:483
266632430,3sleep30-21swapper/300:12:483
165552420,4sleep016560-21needreboot22:17:510
165552420,4sleep016560-21needreboot22:17:510
212632410,6sleep121264-21kernelversion19:37:491
212632410,6sleep121264-21kernelversion19:37:491
216262400,3chrt0-21swapper/322:32:463
216262400,3chrt0-21swapper/322:32:463
1186299383,28cyclictest22688-21chrt00:02:382
1186299383,28cyclictest22688-21chrt00:02:382
163672370,2sleep20-21swapper/223:42:562
163672370,2sleep20-21swapper/223:42:562
127812370,3sleep00-21swapper/020:42:440
127812370,3sleep00-21swapper/020:42:440
11847993722,14cyclictest11842-21cyclictest23:04:300
11847993722,14cyclictest11842-21cyclictest23:04:300
26102360,3sleep30-21swapper/323:07:473
26102360,3sleep30-21swapper/323:07:473
195182360,3chrt0-21swapper/222:27:382
195182360,3chrt0-21swapper/222:27:382
11850993628,6cyclictest17906-21netstat23:47:531
11850993628,6cyclictest17906-21netstat23:47:531
66322350,2sleep06665-21ntp_states23:17:540
66322350,2sleep06665-21ntp_states23:17:540
318982340,3sleep10-21swapper/122:57:561
318982340,3sleep10-21swapper/122:57:561
250182340,1sleep125164-21sed19:47:511
250182340,1sleep125164-21sed19:47:511
11847993426,6cyclictest550-21cron22:12:470
11847993426,6cyclictest550-21cron22:12:470
11847993426,6cyclictest550-21cron22:12:470
167622330,3sleep20-21swapper/220:52:472
137672320,3sleep30-21swapper/319:17:493
1186599322,20cyclictest22709-21chrt00:02:393
1186599322,20cyclictest22709-21chrt00:02:393
34432310,3sleep20-21swapper/200:37:432
11850993127,3cyclictest11842-21cyclictest20:42:551
11850993127,3cyclictest11842-21cyclictest20:42:551
11850993126,3cyclictest0-21swapper/100:02:341
11850993126,3cyclictest0-21swapper/100:02:341
11850993125,5cyclictest11842-21cyclictest21:42:461
11850993125,5cyclictest11842-21cyclictest21:42:461
11850993122,6cyclictest14785-21fschecks_count20:47:471
11850993122,6cyclictest14785-21fschecks_count20:47:471
225262300,3sleep10-21swapper/122:32:561
225262300,3sleep10-21swapper/122:32:561
11850993024,5cyclictest29991-21threads22:52:561
11850993024,5cyclictest29991-21threads22:52:561
11850993024,5cyclictest29991-21threads22:52:561
11850993024,4cyclictest21937-21sshd21:07:391
11850993024,4cyclictest21937-21sshd21:07:391
11850993023,5cyclictest11842-21cyclictest00:29:381
11850993023,5cyclictest11842-21cyclictest00:29:381
11847993022,6cyclictest22992-21gltestperf19:42:480
11847993022,6cyclictest22992-21gltestperf19:42:480
11862992919,6cyclictest314022sleep220:02:592
11862992919,6cyclictest314022sleep220:02:592
11850992924,3cyclictest0-21swapper/120:37:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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