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2026-08-29 - 09:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot6s.osadl.org (updated Sat Aug 29, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
259003997327,38cyclictest0-21swapper/021:35:290
259003997327,38cyclictest0-21swapper/021:35:290
25900399732,33cyclictest288348-21latency_hist22:00:010
25900799721,29cyclictest0-21swapper/200:20:182
259007997133,6cyclictest0-21swapper/200:15:002
259003997129,37cyclictest0-21swapper/000:20:270
25900399702,5cyclictest315193-21cut00:35:190
259003996828,5cyclictest0-21swapper/023:20:300
25900399681,63cyclictest302098-21apt-key23:20:000
259005996647,13cyclictest296843-21gpgv22:50:011
259003996627,8cyclictest0-21swapper/021:50:290
259003996627,8cyclictest0-21swapper/021:50:280
259003996627,6cyclictest0-21swapper/019:30:300
25900799651,37cyclictest0-21swapper/220:35:182
259007996449,5cyclictest0-21swapper/222:00:002
259003996428,7cyclictest0-21swapper/019:50:280
259003996428,7cyclictest0-21swapper/019:50:280
259003996428,32cyclictest0-21swapper/000:05:290
259003996427,33cyclictest0-21swapper/000:25:280
259003996426,8cyclictest0-21swapper/023:50:280
25900399638,26cyclictest0-21swapper/020:25:010
259003996224,7cyclictest0-21swapper/000:00:300
25900399621,6cyclictest275772-21tune2fs20:45:180
25900399611,4cyclictest262160-21sh19:25:190
259007996043,13cyclictest0-21swapper/222:20:022
259003996024,31cyclictest19750irq/27-20000000.i2c23:00:010
259003996023,8cyclictest0-21swapper/023:05:290
259003996013,3cyclictest0-21swapper/000:35:010
259003995924,6cyclictest0-21swapper/020:25:290
259007995741,13cyclictest32-21ksoftirqd/220:50:192
25900399576,4cyclictest0-21swapper/023:30:010
259003995731,4cyclictest20850irq/208-8000000.ethernet00:10:260
259003995725,6cyclictest0-21swapper/019:20:280
259003995724,8cyclictest0-21swapper/022:45:310
25900799559,25cyclictest258997-21cyclictest23:35:132
25900799551,35cyclictest0-21swapper/221:00:182
259003995412,35cyclictest0-21swapper/019:10:000
259007995344,6cyclictest301996-21sendmail23:20:002
259003995242,7cyclictest299463-21munin-plugin-st23:04:590
25900399513,5cyclictest259904-21munin-node19:15:010
259005994937,8cyclictest284829-21sendmail21:40:001
259005994937,8cyclictest284829-21sendmail21:40:001
25900399496,6cyclictest0-21swapper/021:35:000
259007994841,4cyclictest32-21ksoftirqd/222:05:192
259003994828,15cyclictest0-21swapper/019:45:270
25900399481,8cyclictest265237-21munin-run19:45:000
259005994734,8cyclictest294182-21grep22:30:291
259003994733,9cyclictest0-21swapper/021:10:270
25900399471,39cyclictest294382-21latency_hist22:35:000
25900799462,13cyclictest0-21swapper/223:15:012
259003994638,4cyclictest20850irq/208-8000000.ethernet20:40:010
259003994637,7cyclictest295137-21sendmail22:40:010
259003994539,3cyclictest20650irq/252-8000000.ethernet20:50:240
259003994538,4cyclictest277997-21http21:00:010
259007994422,13cyclictest258997-21cyclictest00:05:012
259005994436,5cyclictest275459-21munin-plugin-st20:45:001
259005994436,5cyclictest275459-21munin-plugin-st20:45:001
259005994432,8cyclictest0-21swapper/121:59:591
259005994428,9cyclictest272732-21grep20:25:301
259003994432,8cyclictest0-21swapper/023:55:280
259003994431,8cyclictest0-21swapper/022:40:280
259007994320,11cyclictest0-21swapper/220:05:092
259005994331,7cyclictest0-21swapper/120:05:261
259005994329,10cyclictest0-21swapper/123:20:011
259003994330,8cyclictest0-21swapper/022:25:290
25900399431,35cyclictest0-21swapper/021:50:010
25900799428,20cyclictest0-21swapper/222:40:012
25900799427,30cyclictest0-21swapper/223:30:182
25900799427,30cyclictest0-21swapper/223:30:182
259007994223,11cyclictest0-21swapper/219:55:122
259007994217,14cyclictest0-21swapper/219:15:112
259007994121,12cyclictest0-21swapper/220:00:262
259007994118,11cyclictest0-21swapper/222:10:122
259005994134,4cyclictest0-21swapper/119:35:261
25900599413,2cyclictest0-21swapper/119:15:011
25900599413,11cyclictest0-21swapper/119:50:021
259005994126,10cyclictest0-21swapper/121:10:271
259003994129,8cyclictest0-21swapper/019:35:280
259003994128,9cyclictest0-21swapper/021:40:280
25900399412,4cyclictest311856-21meminfo00:15:250
25900399412,3cyclictest291675-21apt22:20:000
25900399411,4cyclictest297763-21munin-run22:55:000
25900399411,11cyclictest0-21swapper/022:10:010
259007994031,5cyclictest0-21swapper/222:45:302
259007994027,9cyclictest0-21swapper/221:50:272
259007994027,9cyclictest0-21swapper/221:50:272
259007994021,13cyclictest0-21swapper/219:20:152
259007994021,12cyclictest277773-21/usr/sbin/munin20:55:302
259007994013,19cyclictest0-21swapper/219:25:262
259005994027,8cyclictest0-21swapper/123:00:001
259003994032,4cyclictest269417-21unixbench_singl20:05:270
259003994030,6cyclictest0-21swapper/021:00:270
259003994028,8cyclictest0-21swapper/021:15:290
259003994028,7cyclictest0-21swapper/019:15:280
259003994027,8cyclictest0-21swapper/019:55:290
259003994019,19cyclictest0-21swapper/021:05:260
259007993926,8cyclictest0-21swapper/200:35:012
259007993920,6cyclictest0-21swapper/221:45:102
259007993919,14cyclictest0-21swapper/200:35:112
259007993919,13cyclictest0-21swapper/219:35:162
25900799391,30cyclictest0-21swapper/221:25:272
259005993930,5cyclictest0-21swapper/120:20:281
259005993926,9cyclictest0-21swapper/121:45:261
259005993926,9cyclictest0-21swapper/121:05:261
259005993925,6cyclictest0-21swapper/123:35:251
259005993923,8cyclictest0-21swapper/100:15:281
259003993927,8cyclictest0-21swapper/023:10:270
259003993926,7cyclictest0-21swapper/023:45:000
25900399391,36cyclictest0-21swapper/023:45:130
25900399391,36cyclictest0-21swapper/022:10:220
25900399391,36cyclictest0-21swapper/020:30:190
25900399391,36cyclictest0-21swapper/020:30:190
259007993831,4cyclictest283987-21munin-plugin-st21:35:002
259007993829,5cyclictest293369-21munin-plugin-st22:29:592
259007993826,8cyclictest273027-21/usr/sbin/munin20:30:182
259007993826,8cyclictest273027-21/usr/sbin/munin20:30:182
259007993822,9cyclictest0-21swapper/222:20:272
25900799382,26cyclictest307967-21kworker/u8:0+rpciod23:53:222
259007993819,12cyclictest295558-21/usr/sbin/munin22:40:202
25900599383,9cyclictest314755-21apt-get00:35:001
259005993829,5cyclictest0-21swapper/121:00:021
259005993828,6cyclictest0-21swapper/122:35:281
259005993825,8cyclictest0-21swapper/120:30:201
259005993825,8cyclictest0-21swapper/120:30:191
259005993823,10cyclictest0-21swapper/120:50:291
259003993827,7cyclictest0-21swapper/021:25:280
259003993826,9cyclictest0-21swapper/020:10:280
259003993826,8cyclictest0-21swapper/020:00:280
259003993825,9cyclictest0-21swapper/023:30:280
259003993825,9cyclictest0-21swapper/023:30:280
25900399381,3cyclictest270616-21tune2fs20:15:200
25900799378,7cyclictest0-21swapper/222:55:002
259007993732,3cyclictest0-21swapper/221:35:142
259007993732,3cyclictest0-21swapper/221:35:142
259007993727,5cyclictest0-21swapper/221:20:272
259007993720,11cyclictest0-21swapper/223:00:152
259007993718,12cyclictest0-21swapper/221:40:272
259007993715,16cyclictest2-21kthreadd23:42:192
259005993725,8cyclictest0-21swapper/123:25:211
259005993725,7cyclictest0-21swapper/100:20:271
259005993724,9cyclictest0-21swapper/122:25:301
259005993724,10cyclictest0-21swapper/100:05:261
259007993626,6cyclictest0-21swapper/219:10:002
259007993623,9cyclictest293729-21/usr/sbin/munin22:30:182
259007993617,13cyclictest298140-21/usr/sbin/munin22:55:222
259005993629,4cyclictest0-21swapper/120:45:181
259005993628,6cyclictest0-21swapper/123:25:011
259005993626,5cyclictest0-21swapper/122:00:261
259005993623,8cyclictest0-21swapper/122:40:181
259005993623,8cyclictest0-21swapper/120:40:011
259005993622,8cyclictest0-21swapper/120:15:281
25900599361,28cyclictest0-21swapper/121:00:291
259003993630,4cyclictest20850irq/208-8000000.ethernet22:25:000
25900399362,23cyclictest15-21rcuc/021:20:020
259007993528,4cyclictest279121-21/usr/sbin/munin21:05:172
259007993528,3cyclictest264600-21apt-get19:40:132
259007993523,8cyclictest306601-21ssh23:45:182
259007993519,10cyclictest308433-21/usr/sbin/munin23:55:232
259007993518,10cyclictest270793-21/usr/sbin/munin20:15:262
259007993516,12cyclictest275894-21/usr/sbin/munin20:45:202
259007993514,13cyclictest311760-21/usr/sbin/munin00:15:212
259005993526,5cyclictest0-21swapper/119:55:281
259005993525,6cyclictest0-21swapper/119:20:291
259005993524,7cyclictest300231-21grep23:05:291
259005993523,5cyclictest0-21swapper/100:25:281
259005993520,9cyclictest0-21swapper/121:30:281
25900599351,8cyclictest297464-21phc2sys-jitter22:50:271
25900399351,4cyclictest1660-21snmpd23:39:010
25900799349,19cyclictest300187-21unixbench_multi23:05:302
259007993423,6cyclictest0-21swapper/223:20:122
259007993423,4cyclictest167550irq/134-8000000.ethernet-tx220:40:022
259007993423,4cyclictest167550irq/134-8000000.ethernet-tx220:40:022
259007993422,7cyclictest0-21swapper/221:10:112
259007993420,8cyclictest303189-21/usr/sbin/munin23:25:162
259007993414,15cyclictest2-21kthreadd22:03:232
259007993414,14cyclictest266477-21/usr/sbin/munin19:50:212
259007993414,14cyclictest266477-21/usr/sbin/munin19:50:212
25900799341,28cyclictest0-21swapper/219:10:152
259005993427,4cyclictest0-21swapper/120:00:281
259005993424,7cyclictest285042-21/usr/sbin/munin21:40:251
259005993424,7cyclictest0-21swapper/123:05:001
259005993424,6cyclictest0-21swapper/123:45:001
259005993423,7cyclictest289811-21grep22:05:291
25900599341,27cyclictest291661-21sshd22:18:271
25900599341,27cyclictest0-21swapper/122:10:201
25900599341,26cyclictest0-21swapper/119:30:171
259003993427,4cyclictest20650irq/252-8000000.ethernet20:40:160
259003993427,4cyclictest20650irq/252-8000000.ethernet20:40:160
25900399341,3cyclictest0-21swapper/022:00:580
259007993325,4cyclictest272189-21/usr/sbin/munin20:25:302
259007993324,6cyclictest269649-21/usr/sbin/munin20:10:152
259007993321,8cyclictest271351-21/usr/sbin/munin20:20:102
259007993319,8cyclictest280873-21/usr/sbin/munin21:15:172
25900799331,26cyclictest0-21swapper/219:30:172
259005993325,4cyclictest0-21swapper/100:00:311
259005993323,6cyclictest262586-21grep19:25:281
25900599331,2cyclictest0-21swapper/100:00:021
259007993222,6cyclictest313259-21/usr/sbin/munin00:25:302
259007993219,8cyclictest310132-21/usr/sbin/munin00:05:222
25900799321,22cyclictest32-21ksoftirqd/219:45:022
259005993225,5cyclictest0-21swapper/119:50:271
259005993225,5cyclictest0-21swapper/119:50:261
259005993222,7cyclictest0-21swapper/100:10:291
259005993222,6cyclictest0-21swapper/119:40:271
259005993221,8cyclictest0-21swapper/123:15:011
259005993221,5cyclictest0-21swapper/123:55:011
259005993219,9cyclictest0-21swapper/120:15:001
259005993124,3cyclictest0-21swapper/119:15:261
259005993122,5cyclictest287318-21grep21:50:291
259005993122,5cyclictest287318-21grep21:50:281
259005993121,5cyclictest0-21swapper/123:35:011
259005993121,5cyclictest0-21swapper/123:35:011
259005993116,10cyclictest0-21swapper/122:20:281
259005993022,4cyclictest0-21swapper/119:10:001
259005993018,8cyclictest0-21swapper/121:25:281
259005993018,8cyclictest0-21swapper/100:35:211
25900599295,17cyclictest307054-21grep23:45:271
259005992715,8cyclictest0-21swapper/121:20:171
259005992615,7cyclictest281353-21unixbench_multi21:15:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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