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2026-04-06 - 09:12

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 Mon Apr 06, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2311445997750,22cyclictest0-21swapper/320:05:053
231144299762,38cyclictest2361495-21/usr/sbin/munin00:00:181
2311443997330,33cyclictest0-21swapper/220:35:002
2311442997219,10cyclictest2323685-21apt-get20:20:011
2311443997134,32cyclictest0-21swapper/221:05:002
2311443996827,33cyclictest0-21swapper/219:40:252
2311443996733,29cyclictest0-21swapper/222:25:152
2311442996714,15cyclictest2337677-21/usr/sbin/munin21:40:181
2311439996758,5cyclictest0-21swapper/000:10:140
2311443996427,29cyclictest0-21swapper/223:50:002
2311443996425,8cyclictest2337354-21grep21:35:282
2311443996424,33cyclictest0-21swapper/200:10:192
2311443996322,6cyclictest0-21swapper/220:15:302
2311443996318,36cyclictest0-21swapper/221:10:282
2311443996228,29cyclictest0-21swapper/220:10:292
2311443996226,28cyclictest0-21swapper/220:05:282
2311442996242,7cyclictest14-21rcu_preempt22:25:011
2311443996127,27cyclictest0-21swapper/219:55:272
231144399612,17cyclictest2312263-21munin-node19:15:012
2311443996121,31cyclictest0-21swapper/219:25:282
2311443996121,31cyclictest0-21swapper/219:25:282
231144399605,14cyclictest2345059-21tail22:20:272
2311443996026,27cyclictest0-21swapper/221:35:012
2311443996023,4cyclictest0-21swapper/221:45:222
231144399597,13cyclictest2354427-21cron23:20:002
2311443995821,30cyclictest0-21swapper/200:20:022
2311443995730,21cyclictest2325432-21grep20:25:292
2311443995725,25cyclictest0-21swapper/222:05:012
2311443995724,5cyclictest0-21swapper/223:35:292
2311442995718,30cyclictest22-21rcuc/100:10:211
2311443995618,10cyclictest0-21swapper/222:55:282
2311443995542,8cyclictest2340931-21munin-plugin-st22:00:002
231144399554,15cyclictest2324542-21tail20:20:272
2311443995526,23cyclictest0-21swapper/223:35:022
2311442995518,14cyclictest2354649-21/usr/sbin/munin23:20:171
2311443995320,7cyclictest0-21swapper/200:30:262
2311439995324,5cyclictest131ktimers/020:10:130
2311443995240,8cyclictest2334004-21sendmail21:20:002
2311443995218,7cyclictest0-21swapper/223:00:182
231144299528,19cyclictest2320129-21apt-get20:00:021
2311442995210,6cyclictest2312380-21munin-node19:15:011
2311439995242,8cyclictest2329777-21munin-plugin-st20:55:000
2311439995242,7cyclictest2344204-21unixbench_multi22:15:280
2311443995112,17cyclictest2352948-21/usr/sbin/munin23:10:192
231144299517,16cyclictest2311436-21cyclictest19:35:011
2311439995145,3cyclictest2339317-21gpg-connect-age21:50:000
231143999505,16cyclictest0-21swapper/023:15:010
231144399494,13cyclictest2368078-21sed00:35:302
2311439994841,3cyclictest2368139-21latency_hist00:40:010
2311439994835,10cyclictest131ktimers/023:45:110
2311443994736,7cyclictest0-21swapper/223:55:002
2311443994736,7cyclictest0-21swapper/223:55:002
2311443994728,10cyclictest0-21swapper/220:00:282
2311439994739,5cyclictest2311436-21cyclictest19:55:000
2311439994737,8cyclictest2356130-21munin-plugin-st23:30:000
2311439994737,8cyclictest2356130-21munin-plugin-st23:30:000
2311439994733,10cyclictest0-21swapper/019:45:000
231143999472,41cyclictest2311440-21cat19:10:000
2311443994634,8cyclictest0-21swapper/222:30:282
2311443994622,4cyclictest2343426-21grep22:10:282
2311442994630,8cyclictest1660-21snmpd22:05:191
2311443994536,5cyclictest2362930-21grep00:05:272
2311442994529,9cyclictest231ktimers/123:45:131
2311442994527,13cyclictest231ktimers/100:15:111
2311442994516,26cyclictest0-21swapper/122:20:011
2311439994536,7cyclictest2345163-21munin-plugin-st22:25:000
231143999453,40cyclictest0-21swapper/022:25:220
2311439994532,9cyclictest0-21swapper/020:00:010
231143999451,37cyclictest0-21swapper/019:20:170
2311439994512,10cyclictest15-21rcuc/022:50:010
2311439994512,10cyclictest15-21rcuc/022:50:010
2311443994429,10cyclictest0-21swapper/200:25:282
2311443994429,10cyclictest0-21swapper/200:25:282
2311442994431,8cyclictest0-21swapper/123:40:271
231143999445,36cyclictest2336427-21unixbench_multi21:30:290
231144299437,13cyclictest231ktimers/100:35:001
2311442994330,8cyclictest0-21swapper/122:50:271
2311439994332,8cyclictest0-21swapper/022:10:280
2311439994330,10cyclictest0-21swapper/021:05:280
2311439994327,12cyclictest0-21swapper/023:00:270
231143999431,39cyclictest2328300-21cpu20:45:140
2311439994312,28cyclictest0-21swapper/021:50:280
2311439994312,28cyclictest0-21swapper/021:50:270
2311442994218,18cyclictest231ktimers/100:05:101
2311442994217,9cyclictest231ktimers/121:45:141
231143999427,5cyclictest2362972-21apt-get00:10:000
231143999427,32cyclictest2337411-21grep21:35:290
2311439994235,4cyclictest20850irq/208-8000000.ethernet00:00:260
2311439994232,7cyclictest0-21swapper/019:35:280
231143999421,38cyclictest0-21swapper/019:15:030
231143999421,36cyclictest0-21swapper/022:30:020
2311443994128,6cyclictest0-21swapper/223:40:282
2311443994125,10cyclictest0-21swapper/222:15:262
231144299418,18cyclictest22-21rcuc/123:30:011
231144299418,18cyclictest22-21rcuc/123:30:011
2311442994123,13cyclictest231ktimers/100:35:131
2311439994127,9cyclictest0-21swapper/023:55:290
231143999412,4cyclictest2312216-21users19:10:280
2311439994119,3cyclictest0-21swapper/023:10:010
231143999411,38cyclictest0-21swapper/022:55:000
231143999411,38cyclictest0-21swapper/000:25:250
231143999411,38cyclictest0-21swapper/000:25:250
2311439994111,28cyclictest0-21swapper/020:30:150
2311439994032,5cyclictest47-21kauditd23:20:010
231143999401,36cyclictest2337826-21tune2fs21:40:200
2311439994011,3cyclictest2359781-21diskstats23:50:190
2311439994011,3cyclictest2359781-21diskstats23:50:180
2311443993928,6cyclictest0-21swapper/223:55:282
2311443993928,6cyclictest0-21swapper/221:20:282
2311443993926,8cyclictest0-21swapper/219:50:272
2311443993922,8cyclictest0-21swapper/220:35:302
231144399391,4cyclictest0-21swapper/222:10:022
2311442993928,7cyclictest2311436-21cyclictest20:35:311
2311442993927,6cyclictest0-21swapper/121:00:301
2311442993926,8cyclictest0-21swapper/121:35:011
231143999398,9cyclictest12-21ksoftirqd/020:05:010
231143999397,2cyclictest0-21swapper/000:25:010
2311439993926,10cyclictest2351059-21sendmail23:00:000
231143999392,3cyclictest2354953-21memory23:20:240
231143999391,3cyclictest0-21swapper/023:45:010
231143999391,3cyclictest0-21swapper/022:40:190
231143999391,36cyclictest0-21swapper/023:35:200
231143999391,36cyclictest0-21swapper/022:05:240
2311439993911,26cyclictest0-21swapper/021:10:160
2311443993829,4cyclictest2328835-21grep20:45:262
2311443993826,7cyclictest0-21swapper/223:05:272
2311442993826,7cyclictest0-21swapper/121:50:281
2311442993826,7cyclictest0-21swapper/121:50:281
2311439993825,9cyclictest0-21swapper/019:45:280
231143999381,4cyclictest0-21swapper/020:35:200
2311443993724,9cyclictest2355199-21grep23:20:262
231144299379,21cyclictest231ktimers/123:15:011
2311442993724,8cyclictest22-21rcuc/120:15:271
2311439993727,6cyclictest0-21swapper/019:30:270
2311439993725,9cyclictest0-21swapper/020:30:010
231143999371,34cyclictest0-21swapper/021:25:280
231143999371,34cyclictest0-21swapper/021:20:120
2311443993627,5cyclictest2330612-21sh21:00:002
231144299364,18cyclictest24-21ksoftirqd/120:45:091
2311442993623,9cyclictest0-21swapper/121:15:011
2311442993622,9cyclictest22-21rcuc/119:20:011
2311439993627,5cyclictest0-21swapper/000:15:280
231143999362,3cyclictest0-21swapper/020:45:010
2311439993617,17cyclictest15-21rcuc/021:15:240
231143999361,33cyclictest0-21swapper/021:55:100
231144399352,27cyclictest2335050-21/usr/sbin/munin21:25:282
2311443993519,8cyclictest0-21swapper/222:40:192
231144399351,5cyclictest0-21swapper/219:10:002
231144299359,14cyclictest2313587-21/usr/sbin/munin19:20:181
231144299354,26cyclictest0-21swapper/121:05:161
2311442993526,4cyclictest0-21swapper/123:15:271
2311442993523,8cyclictest0-21swapper/100:20:241
2311439993525,7cyclictest131ktimers/020:55:140
2311439993524,7cyclictest0-21swapper/022:35:280
231143999351,32cyclictest0-21swapper/019:26:450
231143999351,32cyclictest0-21swapper/019:26:450
2311443993421,8cyclictest2332212-21grep21:05:282
231144299343,14cyclictest22-21rcuc/123:10:021
2311442993426,3cyclictest2318771-21sh19:50:191
2311442993423,8cyclictest0-21swapper/122:35:011
2311442993418,9cyclictest0-21swapper/120:25:271
231143999343,27cyclictest0-21swapper/000:30:270
2311439993424,7cyclictest0-21swapper/020:15:300
2311443993322,6cyclictest0-21swapper/200:00:272
231144399331,27cyclictest2312785-21df19:15:172
2311442993318,10cyclictest0-21swapper/122:00:321
231144299331,26cyclictest0-21swapper/120:05:251
231143999336,25cyclictest0-21swapper/021:00:230
2311439993323,7cyclictest2321759-21/usr/sbin/munin20:05:250
2311439993322,7cyclictest2341867-21cat22:05:010
2311443993225,3cyclictest0-21swapper/222:35:212
2311443993224,4cyclictest2349267-21grep22:45:272
2311443993224,4cyclictest2349267-21grep22:45:262
231144399321,2cyclictest0-21swapper/223:30:012
231144399321,2cyclictest0-21swapper/223:30:012
2311442993226,4cyclictest0-21swapper/122:25:171
2311442993224,4cyclictest0-21swapper/122:40:271
2311442993223,5cyclictest0-21swapper/122:45:261
2311442993223,5cyclictest0-21swapper/122:45:261
2311442993222,7cyclictest0-21swapper/119:25:281
2311442993222,7cyclictest0-21swapper/119:25:281
2311442993222,5cyclictest22-21rcuc/123:30:281
2311442993221,7cyclictest231ktimers/119:40:191
231144299321,28cyclictest2329132-21/usr/sbin/munin20:50:251
231144299321,26cyclictest0-21swapper/121:20:281
231144299321,25cyclictest1660-21snmpd21:55:171
2311439993227,3cyclictest0-21swapper/020:20:240
2311439993216,13cyclictest2356682-21/usr/sbin/munin23:30:260
231144399311,3cyclictest0-21swapper/200:25:002
2311442993124,3cyclictest0-21swapper/121:25:281
2311442993121,6cyclictest0-21swapper/123:55:021
2311442993121,6cyclictest0-21swapper/123:55:011
2311442993115,8cyclictest0-21swapper/121:00:021
231144299311,25cyclictest0-21swapper/120:30:101
2311443993018,7cyclictest0-21swapper/220:40:192
2311443993015,9cyclictest0-21swapper/222:55:022
2311442993020,7cyclictest0-21swapper/123:55:281
2311442993020,6cyclictest2334022-21latency_hist21:20:001
2311442993019,7cyclictest0-21swapper/122:15:001
2311442993018,7cyclictest0-21swapper/119:10:001
231144299301,2cyclictest0-21swapper/119:50:011
2311443992919,5cyclictest2315799-21grep19:30:272
2311443992917,7cyclictest0-21swapper/220:55:012
2311442992917,8cyclictest0-21swapper/123:00:281
2311442992917,6cyclictest0-21swapper/120:40:271
2311442992915,7cyclictest0-21swapper/120:05:021
2311442992915,10cyclictest0-21swapper/100:25:271
2311442992915,10cyclictest0-21swapper/100:25:271
231144299291,23cyclictest0-21swapper/119:30:101
2311443992822,3cyclictest2-21kthreadd19:39:232
2311442992818,7cyclictest0-21swapper/123:35:281
2311442992818,5cyclictest0-21swapper/122:35:151
231144299281,4cyclictest0-21swapper/122:55:261
2311442992813,10cyclictest231ktimers/121:35:151
2311442992813,10cyclictest0-21swapper/120:10:271
2311443992718,6cyclictest2219083-1kworker/2:2H+kblockd19:45:192
2311443992717,6cyclictest0-21swapper/221:40:222
231144399262,2cyclictest0-21swapper/219:25:012
2311443992619,5cyclictest2340075-21sshd21:54:272
2311443992619,5cyclictest2340075-21sshd21:54:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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