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2026-05-09 - 12:20

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 May 09, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2125557996810,20cyclictest2155924-21/usr/sbin/munin22:05:181
212556199673,43cyclictest0-21swapper/221:20:012
2125555996351,7cyclictest0-21swapper/020:25:010
2125555996142,16cyclictest15-21rcuc/000:05:140
212556199608,28cyclictest30-21rcuc/220:30:192
212555599606,18cyclictest12-21ksoftirqd/021:10:010
2125555995439,6cyclictest167350irq/118-8000000.ethernet-tx019:55:010
2125555995322,28cyclictest15-21rcuc/000:10:250
2125555995235,13cyclictest131ktimers/023:55:110
2125555995235,13cyclictest131ktimers/023:55:110
212555599511,48cyclictest0-21swapper/021:05:000
212555599511,48cyclictest0-21swapper/021:05:000
212555599508,12cyclictest2147183-21apt-get21:15:010
212555599508,12cyclictest2147183-21apt-get21:15:010
2125561994936,6cyclictest2126347-21kworker/u8:0-ext4-rsv-conversion19:25:012
2125557994942,5cyclictest0-21swapper/121:25:011
2125557994942,5cyclictest0-21swapper/121:25:011
212555599491,4cyclictest0-21swapper/022:55:010
212555599491,4cyclictest0-21swapper/022:55:010
2125561994835,8cyclictest0-21swapper/219:55:012
2125561994831,11cyclictest311ktimers/220:40:142
2125555994839,5cyclictest2127430-21grep19:15:280
212556199476,37cyclictest32-21ksoftirqd/220:15:012
2125561994737,7cyclictest311ktimers/200:10:262
2125561994737,5cyclictest0-21swapper/221:05:272
2125561994736,7cyclictest2127433-21unixbench_singl19:15:282
2125561994736,7cyclictest0-21swapper/200:15:302
2125561994736,7cyclictest0-21swapper/200:15:292
2125561994736,6cyclictest0-21swapper/223:40:012
2125557994730,11cyclictest231ktimers/120:05:141
2125555994740,4cyclictest167350irq/118-8000000.ethernet-tx020:15:160
2125555994731,12cyclictest0-21swapper/020:30:280
2125561994631,9cyclictest0-21swapper/200:30:292
2125561994631,8cyclictest14-21rcu_preempt22:30:272
2125561994630,12cyclictest0-21swapper/200:25:272
2125557994627,11cyclictest0-21swapper/122:35:281
2125557994627,11cyclictest0-21swapper/122:35:281
2125555994638,4cyclictest167350irq/118-8000000.ethernet-tx023:50:210
212555599462,7cyclictest2157799-21dropbear22:15:200
2125561994537,5cyclictest2163329-21munin-plugin-st22:50:002
2125557994515,11cyclictest2177775-21apt-get00:15:011
2125555994538,4cyclictest20650irq/252-8000000.ethernet23:25:240
2125555994534,8cyclictest0-21swapper/022:40:260
2125561994434,5cyclictest0-21swapper/219:10:272
2125557994430,9cyclictest231ktimers/123:20:111
2125557994427,9cyclictest0-21swapper/100:00:001
2125557994427,9cyclictest0-21swapper/100:00:001
2125555994437,4cyclictest20650irq/252-8000000.ethernet22:45:150
2125555994436,5cyclictest167350irq/118-8000000.ethernet-tx019:20:150
2125555994435,5cyclictest2164919-21grep22:55:270
212555599442,5cyclictest2166370-21memory23:05:250
2125561994331,7cyclictest0-21swapper/221:05:002
2125561994331,7cyclictest0-21swapper/221:05:002
2125561994325,10cyclictest0-21swapper/221:45:282
2125557994331,9cyclictest231ktimers/121:55:111
212555599435,13cyclictest15-21rcuc/022:10:000
212555599434,12cyclictest12-21ksoftirqd/022:35:010
2125555994337,3cyclictest167350irq/118-8000000.ethernet-tx019:30:200
2125555994336,4cyclictest167350irq/118-8000000.ethernet-tx023:40:240
2125555994335,5cyclictest0-21swapper/021:20:260
2125555994335,5cyclictest0-21swapper/021:20:260
2125555994333,5cyclictest0-21swapper/023:20:270
2125555994332,7cyclictest0-21swapper/023:45:280
2125555994331,8cyclictest0-21swapper/022:35:280
2125555994331,8cyclictest0-21swapper/022:35:280
212555599431,39cyclictest2154876-21tr22:00:000
212555599431,36cyclictest0-21swapper/000:15:040
212555599431,36cyclictest0-21swapper/000:15:040
2125561994233,5cyclictest2138603-21grep20:20:292
2125561994232,7cyclictest0-21swapper/223:15:002
2125561994228,9cyclictest0-21swapper/223:05:282
2125561994227,10cyclictest0-21swapper/219:30:272
212555799425,23cyclictest22-21rcuc/120:00:011
2125557994232,5cyclictest0-21swapper/119:15:201
2125557994230,6cyclictest0-21swapper/121:35:271
2125555994234,6cyclictest15-21rcuc/022:10:240
2125555994231,8cyclictest0-21swapper/020:55:280
2125555994231,7cyclictest0-21swapper/000:35:290
2125555994231,5cyclictest0-21swapper/023:30:270
212555599422,5cyclictest2155247-21lsblk22:00:200
212555599422,5cyclictest2155247-21lsblk22:00:200
212555599421,38cyclictest2151899-21grep21:40:200
212555599421,38cyclictest0-21swapper/019:45:280
2125557994129,8cyclictest2171868-21sendmail23:40:001
2125557994128,8cyclictest0-21swapper/100:30:021
2125557994128,11cyclictest231ktimers/122:45:111
212555599416,32cyclictest12-21ksoftirqd/020:05:200
2125555994127,10cyclictest0-21swapper/019:45:010
2125555994127,10cyclictest0-21swapper/019:45:010
212555599411,38cyclictest0-21swapper/020:50:200
212555599411,29cyclictest2126502-21latency_hist19:15:010
2125561994033,5cyclictest311ktimers/222:50:242
2125561994033,5cyclictest311ktimers/222:50:232
2125561994033,4cyclictest2165012-21munin-plugin-st23:00:002
2125561994031,5cyclictest0-21swapper/221:25:272
2125561994029,7cyclictest311ktimers/221:00:002
2125561994027,9cyclictest311ktimers/223:45:112
2125557994026,9cyclictest0-21swapper/122:10:271
2125557994026,8cyclictest0-21swapper/100:40:001
2125557994025,8cyclictest0-21swapper/121:30:281
2125557994014,13cyclictest2157604-21/usr/sbin/munin22:15:181
212555799401,12cyclictest0-21swapper/123:35:011
2125555994033,5cyclictest131ktimers/020:05:000
2125555994032,4cyclictest0-21swapper/019:35:190
212555599401,5cyclictest2179946-21perl00:25:200
212555599401,5cyclictest2178999-21diskstats00:20:180
212555599401,4cyclictest2134306-21/usr/sbin/munin19:55:280
212556199397,10cyclictest32-21ksoftirqd/223:35:012
212556199394,28cyclictest32-21ksoftirqd/200:00:012
212556199394,28cyclictest32-21ksoftirqd/200:00:012
212556199394,19cyclictest32-21ksoftirqd/220:20:022
2125561993926,9cyclictest0-21swapper/220:35:272
2125555993933,3cyclictest20650irq/252-8000000.ethernet20:25:170
2125555993933,3cyclictest0-21swapper/020:45:010
2125555993931,5cyclictest0-21swapper/023:15:290
2125555993929,7cyclictest0-21swapper/019:25:280
212555599391,3cyclictest0-21swapper/020:10:150
212555599391,36cyclictest2141836-21phc2sys-jitter20:40:250
212555599391,36cyclictest0-21swapper/023:10:170
212555599391,36cyclictest0-21swapper/020:35:170
2125561993827,7cyclictest0-21swapper/221:55:272
2125561993826,5cyclictest0-21swapper/221:40:252
2125561993823,7cyclictest0-21swapper/219:45:292
2125557993825,9cyclictest0-21swapper/120:00:281
2125557993824,10cyclictest0-21swapper/120:40:161
2125557993818,15cyclictest231ktimers/121:45:111
212555599383,6cyclictest2148108-21cron21:20:000
2125555993822,14cyclictest0-21swapper/021:46:150
2125555993816,20cyclictest0-21swapper/022:20:130
212555599381,35cyclictest0-21swapper/019:10:000
2125561993727,5cyclictest0-21swapper/222:25:012
2125561993725,7cyclictest2135478-21/usr/sbin/munin20:05:182
2125561993725,6cyclictest0-21swapper/220:25:172
2125561993725,5cyclictest0-21swapper/220:50:272
2125561993724,6cyclictest311ktimers/223:25:262
2125561993720,6cyclictest0-21swapper/222:10:002
2125557993725,6cyclictest0-21swapper/121:40:251
2125557993723,11cyclictest231ktimers/123:45:151
2125557993722,10cyclictest0-21swapper/122:30:011
2125557993721,12cyclictest231ktimers/121:10:131
2125557993721,12cyclictest231ktimers/121:10:131
2125557993721,12cyclictest231ktimers/120:20:131
2125557993715,15cyclictest231ktimers/123:15:101
2125555993730,4cyclictest2154001-21users21:50:280
2125555993730,4cyclictest0-21swapper/021:30:120
2125555993727,7cyclictest2159842-21unixbench_multi22:25:270
2125561993627,4cyclictest0-21swapper/222:15:272
2125561993626,5cyclictest311ktimers/222:25:222
2125561993619,11cyclictest30-21rcuc/200:20:202
212556199361,27cyclictest2155707-21kworker/u8:1+rpciod22:11:182
2125557993626,6cyclictest0-21swapper/120:55:281
2125557993626,6cyclictest0-21swapper/120:30:291
2125557993626,6cyclictest0-21swapper/119:40:161
2125557993626,6cyclictest0-21swapper/119:40:161
2125557993625,8cyclictest1660-21snmpd00:30:251
2125557993623,8cyclictest0-21swapper/120:35:271
2125557993616,14cyclictest231ktimers/120:10:111
2125555993627,5cyclictest2181118-21threads00:30:290
2125555993621,13cyclictest0-21swapper/021:35:150
2125561993528,4cyclictest2129268-21cron19:30:002
2125561993524,7cyclictest0-21swapper/223:50:192
2125561993523,6cyclictest2172606-21grep23:40:282
2125561993521,6cyclictest0-21swapper/220:00:162
2125557993527,4cyclictest0-21swapper/119:35:271
2125557993519,8cyclictest0-21swapper/121:00:221
2125557993519,8cyclictest0-21swapper/121:00:221
2125557993518,10cyclictest0-21swapper/119:20:191
2125555993530,2cyclictest0-21swapper/023:00:250
2125561993428,3cyclictest311ktimers/223:15:192
2125561993425,7cyclictest311ktimers/222:40:132
2125561993425,6cyclictest2175447-21/usr/sbin/munin00:00:152
2125561993423,8cyclictest311ktimers/221:30:112
2125561993423,7cyclictest311ktimers/220:45:122
2125561993422,7cyclictest2131696-21grep19:40:282
2125561993422,7cyclictest2131696-21grep19:40:272
212556199342,23cyclictest311ktimers/222:40:012
212556199342,23cyclictest311ktimers/222:40:012
2125557993427,4cyclictest0-21swapper/121:25:281
2125557993426,4cyclictest0-21swapper/119:50:271
2125557993424,6cyclictest0-21swapper/123:55:011
2125557993421,7cyclictest0-21swapper/123:25:271
2125557993416,16cyclictest231ktimers/122:55:131
2125555993429,2cyclictest0-21swapper/021:25:230
212555599341,31cyclictest0-21swapper/000:02:280
2125561993324,7cyclictest311ktimers/222:00:162
2125561993324,7cyclictest311ktimers/222:00:162
2125561993322,7cyclictest0-21swapper/221:35:182
2125561993318,9cyclictest0-21swapper/223:25:002
2125561993317,9cyclictest0-21swapper/221:50:272
212555799336,24cyclictest808-21crond19:50:001
2125557993324,5cyclictest0-21swapper/120:25:181
2125557993318,11cyclictest0-21swapper/122:20:271
2125557993317,11cyclictest0-21swapper/122:30:301
2125557993317,11cyclictest0-21swapper/121:20:011
2125561993225,5cyclictest311ktimers/200:35:232
2125561993224,6cyclictest311ktimers/221:20:272
2125561993224,6cyclictest311ktimers/221:20:272
2125561993222,7cyclictest311ktimers/221:10:132
2125561993222,7cyclictest311ktimers/221:10:132
2125561993220,7cyclictest311ktimers/223:00:162
2125557993226,4cyclictest14-21rcu_preempt23:05:231
2125557993224,5cyclictest0-21swapper/123:10:261
2125557993223,6cyclictest2165811-21grep23:00:301
2125557993223,6cyclictest0-21swapper/120:15:181
2125557993220,8cyclictest1660-21snmpd19:10:121
2125557993215,13cyclictest231ktimers/100:05:121
212555599321,29cyclictest0-21swapper/023:39:350
2125561993120,7cyclictest0-21swapper/219:35:272
2125557993124,4cyclictest0-21swapper/121:50:271
2125557993123,4cyclictest0-21swapper/120:45:201
2125557993115,11cyclictest0-21swapper/122:00:281
2125557993115,11cyclictest0-21swapper/122:00:281
212556199305,18cyclictest2176823-21sed00:05:282
2125561993014,10cyclictest311ktimers/219:10:012
2125557993020,7cyclictest0-21swapper/122:50:181
2125557993020,7cyclictest0-21swapper/122:50:181
2125557993019,7cyclictest0-21swapper/122:40:191
212556199295,21cyclictest0-21swapper/219:58:232
2125557992920,7cyclictest0-21swapper/121:10:011
2125557992919,7cyclictest0-21swapper/120:50:271
2125557992919,5cyclictest0-21swapper/100:20:011
2125557992919,5cyclictest0-21swapper/100:20:011
2125557992918,7cyclictest0-21swapper/100:00:281
2125557992913,11cyclictest231ktimers/119:25:121
2125557992820,6cyclictest0-21swapper/123:40:201
212555799266,13cyclictest231ktimers/119:30:121
2125557992616,5cyclictest0-21swapper/100:25:011
212555799219,8cyclictest0-21swapper/119:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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