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2026-01-05 - 11:10

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 rack0slot1s.osadl.org (updated Mon Jan 05, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2144199123123,0cyclictest192950irq/36-eth1-rx-23:20:015
2141699113113,0cyclictest192950irq/36-eth1-rx-21:59:241
2140899111111,0cyclictest3-21ksoftirqd/019:27:380
2140899101101,0cyclictest3-21ksoftirqd/023:55:170
21434998988,1cyclictest0-21swapper/419:27:384
21434997978,1cyclictest0-21swapper/423:55:174
21441997068,2cyclictest0-21swapper/522:39:535
21446996665,1cyclictest0-21swapper/621:24:406
21416996565,0cyclictest21-21ksoftirqd/100:38:561
21416996058,1cyclictest0-21swapper/123:20:011
21450995554,0cyclictest17354-21ssh23:33:547
2112124634,8sleep70-21swapper/719:08:497
21450994239,2cyclictest192950irq/36-eth1-rx-23:53:237
2120024230,8sleep10-21swapper/119:09:541
2114724231,8sleep60-21swapper/619:09:116
2097524222,17sleep40-21swapper/419:06:454
1907623817,18sleep30-21swapper/319:05:073
2105423715,8sleep50-21swapper/519:07:505
2107823616,17sleep20-21swapper/219:08:112
1907323515,17sleep00-21swapper/019:05:040
2142999250,21cyclictest0-21swapper/320:07:403
21429992424,0cyclictest192950irq/36-eth1-rx-00:02:183
2142999230,20cyclictest0-21swapper/319:37:233
2142999220,19cyclictest0-21swapper/321:02:533
2142999212,18cyclictest0-21swapper/319:54:013
2142999210,20cyclictest0-21swapper/322:54:293
2142999210,20cyclictest0-21swapper/321:31:483
2142999201,17cyclictest17942-21diskmemload00:06:313
2142999200,16cyclictest0-21swapper/322:36:233
2142999190,17cyclictest17644-21ssh23:34:193
2145099180,17cyclictest27101-21idleruntime-cro19:20:007
2142999181,14cyclictest17942-21diskmemload23:11:313
2142999180,16cyclictest0-21swapper/321:35:093
2142999172,12cyclictest18718-21ssh22:07:343
2144699160,15cyclictest0-21swapper/622:47:066
2142999162,12cyclictest21619-21ssh23:36:593
2142999162,11cyclictest1847-21ssh00:17:423
2142999160,14cyclictest28018-21sort20:25:123
2140899168,5cyclictest12211-21portstat_8022:30:190
2140899168,5cyclictest12211-21portstat_8022:30:190
2140899160,1cyclictest0-21swapper/000:15:480
2140899160,14cyclictest0-21swapper/023:30:010
2140899160,13cyclictest2038850latency_hist22:10:010
2140899160,13cyclictest0-21swapper/023:40:000
21434991512,2cyclictest0-21swapper/423:53:364
2143499150,14cyclictest3535-21awk00:20:004
2143499150,12cyclictest0-21swapper/423:37:064
2143499150,12cyclictest0-21swapper/423:27:064
2142999151,12cyclictest16057-21ssh23:03:353
2142999150,14cyclictest32102-21ssh23:46:043
2142999150,13cyclictest17942-21diskmemload22:12:013
2142999150,12cyclictest2194-21sh22:21:213
2142999150,12cyclictest18620-21cat23:05:173
2142999150,12cyclictest0-21swapper/320:55:163
2140899157,6cyclictest0-21swapper/020:20:000
2140899156,5cyclictest555150cat20:45:000
2140899150,1cyclictest2261150latency_hist23:10:010
2140899150,1cyclictest0-21swapper/022:03:120
2140899150,12cyclictest0-21swapper/020:14:590
2143499140,13cyclictest0-21swapper/419:13:214
2143499140,0cyclictest0-21swapper/400:13:064
2142999142,11cyclictest17555-21ssh00:30:323
2142999140,12cyclictest8736-21fschecks_count20:50:133
2142999140,12cyclictest13271-21ssh22:02:453
2142399142,11cyclictest0-21swapper/223:15:152
2142399140,13cyclictest0-21swapper/222:20:212
2140899147,6cyclictest2487-21snmpd23:54:060
2140899146,6cyclictest2232-21mrtg19:35:010
2140899146,1cyclictest0-21swapper/021:25:370
2140899141,12cyclictest0-21swapper/023:35:000
2140899141,11cyclictest0-21swapper/000:34:280
2140899140,7cyclictest0-21swapper/021:05:000
2140899140,7cyclictest0-21swapper/020:25:000
2140899140,6cyclictest0-21swapper/000:39:550
2140899140,1cyclictest19992-21munin-run20:10:000
2140899140,1cyclictest0-21swapper/022:57:280
2140899140,1cyclictest0-21swapper/022:42:420
2140899140,1cyclictest0-21swapper/022:35:320
2140899140,1cyclictest0-21swapper/021:50:180
2140899140,1cyclictest0-21swapper/019:15:430
2140899140,13cyclictest3055350cat21:49:590
2140899140,13cyclictest29744-21ssh22:17:240
2140899140,13cyclictest0-21swapper/000:29:140
2140899140,12cyclictest0-21swapper/022:53:570
2140899140,12cyclictest0-21swapper/022:10:450
2140899140,12cyclictest0-21swapper/021:36:530
2140899140,12cyclictest0-21swapper/000:11:350
2140899140,11cyclictest0-21swapper/022:45:210
2140899140,11cyclictest0-21swapper/000:03:180
2144699131,2cyclictest0-21swapper/623:40:436
2144199130,12cyclictest30387-21grep21:50:005
21434991310,2cyclictest0-21swapper/422:01:214
2143499130,12cyclictest0-21swapper/422:57:514
2142999131,9cyclictest17942-21diskmemload22:32:233
2142999131,9cyclictest17942-21diskmemload22:32:233
2142999130,12cyclictest31283-21ssh22:19:393
2142999130,11cyclictest30787-21ssh21:20:173
2142999130,10cyclictest25475-21ssh00:38:343
2141699139,4cyclictest2487-21snmpd20:31:061
2140899136,1cyclictest0-21swapper/019:24:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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