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2026-06-05 - 05:44

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 Fri Jun 05, 2026 00:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3045921060,4sleep20-21swapper/219:24:312
3045921060,4sleep20-21swapper/219:24:312
3045921060,4sleep20-21swapper/219:24:312
2440121050,2sleep30-21swapper/322:02:593
2440121050,2sleep30-21swapper/322:02:593
39392990,1sleep0171ktimers/019:42:460
39392990,1sleep0171ktimers/019:42:460
39392990,1sleep0171ktimers/019:42:460
95192860,3sleep30-21swapper/321:22:593
95192860,3sleep30-21swapper/321:22:593
95192860,3sleep30-21swapper/321:22:593
46202860,2sleep20-21swapper/200:02:582
46202860,2sleep20-21swapper/200:02:582
46202860,2sleep20-21swapper/200:02:582
78792760,1chrt0-21swapper/019:52:550
78792760,1chrt0-21swapper/019:52:550
78792760,1chrt0-21swapper/019:52:550
129622730,3chrt0-21swapper/200:23:082
129622730,3chrt0-21swapper/200:23:082
129622730,3chrt0-21swapper/200:23:082
56772720,3chrt0-21swapper/300:03:353
56772720,3chrt0-21swapper/300:03:353
56772720,3chrt0-21swapper/300:03:353
32562710,2chrt0-21swapper/322:32:583
32562710,2chrt0-21swapper/322:32:583
220202660,3sleep20-21swapper/223:22:582
220202660,3sleep20-21swapper/223:22:582
106972650,3sleep10-21swapper/100:18:051
106972650,3sleep10-21swapper/100:18:051
24152610,4sleep00-21swapper/022:28:080
24152610,4sleep00-21swapper/022:28:080
24152610,4sleep00-21swapper/022:28:080
326782580,3sleep00-21swapper/022:23:060
326782580,3sleep00-21swapper/022:23:060
326782580,3sleep00-21swapper/022:23:060
323692570,1chrt32374-21unixbench_singl23:48:080
323692570,1chrt32374-21unixbench_singl23:48:080
68982540,3sleep20-21swapper/200:08:042
68982540,3sleep20-21swapper/200:08:042
68982540,3sleep20-21swapper/200:08:042
184452540,2chrt0-21swapper/320:18:063
184452540,2chrt0-21swapper/320:18:063
25694995219,30cyclictest4230-21latency_hist00:02:500
25694995219,30cyclictest4230-21latency_hist00:02:500
122922520,1sleep0201rcuc/020:03:000
122922520,1sleep0201rcuc/020:03:000
295002490,2sleep30-21swapper/319:22:593
295002490,2sleep30-21swapper/319:22:593
295002490,2sleep30-21swapper/319:22:593
25694994941,4cyclictest0-21swapper/000:02:570
25694994941,4cyclictest0-21swapper/000:02:570
25694994941,4cyclictest0-21swapper/000:02:570
291132480,3sleep20-21swapper/223:42:472
291132480,3sleep20-21swapper/223:42:472
291132480,3sleep20-21swapper/223:42:472
179062450,1sleep2351rcuc/221:43:082
179062450,1sleep2351rcuc/221:43:082
179062450,1sleep2351rcuc/221:43:082
231422440,3sleep025685-21cyclictest21:58:050
231422440,3sleep025685-21cyclictest21:58:050
29052410,3chrt0-21swapper/221:03:082
29052410,3chrt0-21swapper/221:03:082
163782410,4sleep0201rcuc/000:33:030
163782410,4sleep0201rcuc/000:33:030
79752380,3sleep00-21swapper/021:18:020
79752380,3sleep00-21swapper/021:18:020
29762380,3sleep30-21swapper/319:38:023
29762380,3sleep30-21swapper/319:38:023
29762380,3sleep30-21swapper/319:38:023
90402370,2chrt9041-21grep00:13:050
90402370,2chrt9041-21grep00:13:050
25696993528,5cyclictest9063-21latency_hist21:22:461
25696993528,5cyclictest9063-21latency_hist21:22:461
25696993528,5cyclictest32380-21unixbench_singl23:48:081
25696993528,5cyclictest32380-21unixbench_singl23:48:081
25696993427,6cyclictest18494-21threads00:38:081
25696993427,6cyclictest18494-21threads00:38:081
25696993425,7cyclictest13638-21fschecks_count20:07:571
25696993425,7cyclictest13638-21fschecks_count20:07:571
25694993326,5cyclictest5555-21sh21:12:570
25694993326,5cyclictest5555-21sh21:12:570
212492330,3sleep10-21swapper/121:53:041
212492330,3sleep10-21swapper/121:53:041
101712330,3sleep30-21swapper/300:17:583
101712330,3sleep30-21swapper/300:17:583
25696993228,3cyclictest547-21rs:main1
25696993228,3cyclictest547-21rs:main1
25694993227,3cyclictest0-21swapper/020:52:440
25694993227,3cyclictest0-21swapper/020:52:440
25694993227,3cyclictest0-21swapper/020:52:440
25694993225,5cyclictest26924-21processes22:08:060
25694993225,5cyclictest26924-21processes22:08:060
25694993225,5cyclictest16436-21gltestperf23:07:580
25694993225,5cyclictest16436-21gltestperf23:07:580
25694993225,5cyclictest16436-21gltestperf23:07:580
25696993125,4cyclictest23035-21fschecks_count20:32:571
25696993125,4cyclictest23035-21fschecks_count20:32:571
25694993124,5cyclictest6969-21cut22:42:570
25694993124,5cyclictest6969-21cut22:42:570
94042300,2sleep19443-21ntpq22:48:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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