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2026-08-30 - 06:50

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 the 792 highest latencies:
System rackeslot6s.osadl.org (updated Sun Aug 30, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1145447996958,4cyclictest0-21swapper/000:00:110
114545299588,21cyclictest0-21swapper/223:55:212
114545299588,21cyclictest0-21swapper/223:55:212
1145447995829,26cyclictest0-21swapper/020:00:110
1145452995648,5cyclictest1156670-21munin-plugin-st20:14:592
114545099554,16cyclictest22-21rcuc/122:55:011
114545099551,31cyclictest0-21swapper/120:00:011
1145447995546,5cyclictest20650irq/252-8000000.ethernet20:50:020
1145447995447,4cyclictest1154130-21cat20:00:000
1145452995331,13cyclictest0-21swapper/223:35:282
1145447995244,4cyclictest167350irq/118-8000000.ethernet-tx000:15:000
1145447995242,5cyclictest1183952-21munin-plugin-st22:55:000
1145452995137,9cyclictest0-21swapper/223:10:272
1145452995038,7cyclictest1159227-21grep20:25:432
1145452995037,8cyclictest1160055-21grep20:30:292
114545299503,28cyclictest1190960-21rm23:35:012
1145447995043,4cyclictest20650irq/252-8000000.ethernet22:20:280
1145447995043,4cyclictest20650irq/252-8000000.ethernet22:20:280
1145447995042,5cyclictest0-21swapper/021:50:110
1145447995042,4cyclictest20650irq/252-8000000.ethernet23:40:000
1145447995040,6cyclictest1181976-21ptp4l-jitter22:40:280
114544799494,31cyclictest0-21swapper/022:35:000
1145447994941,4cyclictest20650irq/252-8000000.ethernet23:25:180
114544799492,3cyclictest0-21swapper/019:20:020
1145452994840,4cyclictest1172897-21munin-plugin-st21:50:002
1145452994835,8cyclictest1157490-21grep20:15:292
1145452994830,12cyclictest0-21swapper/222:45:302
1145447994841,4cyclictest20650irq/252-8000000.ethernet20:50:240
1145447994840,4cyclictest20650irq/252-8000000.ethernet21:40:200
1145447994840,4cyclictest20650irq/252-8000000.ethernet21:40:200
1145447994840,4cyclictest167350irq/118-8000000.ethernet-tx020:40:160
1145452994734,8cyclictest1180451-21grep22:30:292
1145452994732,6cyclictest0-21swapper/200:25:192
1145452994730,8cyclictest0-21swapper/222:20:212
1145452994730,8cyclictest0-21swapper/222:20:202
1145450994739,4cyclictest0-21swapper/122:40:301
1145447994740,4cyclictest20650irq/252-8000000.ethernet23:10:160
1145447994740,4cyclictest20650irq/252-8000000.ethernet00:30:250
1145447994740,4cyclictest167350irq/118-8000000.ethernet-tx022:00:170
1145447994739,4cyclictest20650irq/252-8000000.ethernet22:05:300
1145447994739,4cyclictest20650irq/252-8000000.ethernet19:25:180
1145447994734,9cyclictest0-21swapper/019:15:000
1145447994734,9cyclictest0-21swapper/019:15:000
114544799471,25cyclictest0-21swapper/023:25:010
1145452994639,4cyclictest1150764-21sendmail19:40:012
1145452994639,4cyclictest1150764-21sendmail19:40:012
1145452994634,7cyclictest1194217-21grep23:50:262
1145452994632,9cyclictest0-21swapper/222:05:292
1145452994632,8cyclictest0-21swapper/221:00:262
1145452994632,8cyclictest0-21swapper/221:00:262
1145452994629,7cyclictest0-21swapper/221:40:212
1145452994629,7cyclictest0-21swapper/221:40:202
1145452994626,12cyclictest0-21swapper/220:05:272
1145450994637,5cyclictest0-21swapper/121:05:291
1145447994639,4cyclictest20650irq/252-8000000.ethernet22:25:190
1145447994639,4cyclictest20650irq/252-8000000.ethernet21:05:170
1145447994639,4cyclictest20650irq/252-8000000.ethernet20:30:220
1145447994639,4cyclictest20650irq/252-8000000.ethernet20:05:240
1145447994639,4cyclictest20650irq/252-8000000.ethernet19:15:170
1145447994639,4cyclictest20650irq/252-8000000.ethernet00:05:230
1145447994639,4cyclictest1156782-21apt-key20:15:010
1145447994638,4cyclictest20650irq/252-8000000.ethernet23:00:150
1145447994636,5cyclictest0-21swapper/023:05:210
1145447994636,5cyclictest0-21swapper/023:05:210
1145450994537,5cyclictest1187416-21munin-run23:14:591
1145450994535,5cyclictest1183234-21grep22:50:021
1145447994539,3cyclictest20650irq/252-8000000.ethernet22:10:270
1145447994539,3cyclictest20650irq/252-8000000.ethernet00:20:210
1145447994539,3cyclictest20650irq/252-8000000.ethernet00:20:210
1145447994539,3cyclictest20650irq/252-8000000.ethernet00:15:290
1145447994538,4cyclictest20650irq/252-8000000.ethernet23:30:160
1145447994538,4cyclictest20650irq/252-8000000.ethernet22:35:200
1145447994538,4cyclictest20650irq/252-8000000.ethernet21:00:300
1145447994538,4cyclictest20650irq/252-8000000.ethernet21:00:290
1145447994538,4cyclictest20650irq/252-8000000.ethernet20:15:250
1145447994538,4cyclictest20650irq/252-8000000.ethernet19:40:010
1145447994538,4cyclictest20650irq/252-8000000.ethernet19:40:000
1145447994538,4cyclictest167350irq/118-8000000.ethernet-tx020:20:110
1145447994536,5cyclictest1184281-21fschecks_time22:55:210
1145452994432,8cyclictest0-21swapper/221:55:002
1145452994431,9cyclictest0-21swapper/222:05:002
1145452994430,7cyclictest0-21swapper/200:35:282
1145452994429,8cyclictest0-21swapper/220:50:012
114545099441,24cyclictest0-21swapper/119:35:001
1145447994439,3cyclictest20650irq/252-8000000.ethernet21:20:210
1145447994436,4cyclictest0-21swapper/021:35:270
1145447994435,7cyclictest1200274-21sh00:30:000
1145447994435,5cyclictest1188166-21unixbench_multi23:15:290
114544799442,40cyclictest0-21swapper/021:10:190
1145452994331,7cyclictest1198366-21grep00:15:292
1145452994331,7cyclictest1166081-21grep21:05:302
1145452994330,9cyclictest0-21swapper/219:40:212
1145452994330,7cyclictest0-21swapper/222:10:212
1145452994327,11cyclictest0-21swapper/219:20:192
1145452994327,11cyclictest0-21swapper/200:10:282
1145452994315,13cyclictest1153490-21/usr/sbin/munin19:55:172
1145450994333,6cyclictest231ktimers/120:05:141
1145450994331,8cyclictest0-21swapper/122:55:001
1145450994328,9cyclictest231ktimers/123:00:111
1145447994336,4cyclictest20650irq/252-8000000.ethernet20:55:170
1145447994336,3cyclictest1153334-21latency_hist19:55:010
1145447994336,3cyclictest1153334-21latency_hist19:55:000
1145452994235,5cyclictest0-21swapper/222:45:012
1145452994231,7cyclictest0-21swapper/220:40:012
1145452994231,7cyclictest0-21swapper/220:40:002
1145452994228,10cyclictest0-21swapper/223:00:262
1145452994226,8cyclictest0-21swapper/223:25:292
1145450994228,7cyclictest0-21swapper/119:35:271
1145450994228,7cyclictest0-21swapper/119:35:271
1145447994235,5cyclictest0-21swapper/023:55:240
1145447994235,5cyclictest0-21swapper/023:55:240
1145447994235,4cyclictest167350irq/118-8000000.ethernet-tx020:25:120
1145447994234,4cyclictest0-21swapper/023:45:000
1145452994129,7cyclictest1177892-21grep22:15:282
1145452994126,9cyclictest0-21swapper/220:50:282
1145452994120,11cyclictest0-21swapper/220:20:202
1145452994115,19cyclictest2-21kthreadd21:59:232
114545099413,4cyclictest0-21swapper/122:35:001
1145450994127,8cyclictest0-21swapper/121:35:001
1145450994126,8cyclictest0-21swapper/121:25:281
1145447994135,3cyclictest20650irq/252-8000000.ethernet21:55:200
1145447994133,5cyclictest0-21swapper/019:40:260
1145447994125,10cyclictest0-21swapper/022:50:020
1145447994116,23cyclictest14-21rcu_preempt21:15:160
1145452994027,7cyclictest0-21swapper/222:25:212
1145452994025,8cyclictest0-21swapper/200:20:282
1145452994025,8cyclictest0-21swapper/200:20:272
1145450994027,9cyclictest1195854-21grep00:00:291
1145447994032,4cyclictest1172323-21/usr/sbin/munin21:45:190
1145447994031,5cyclictest20850irq/208-8000000.ethernet19:30:280
1145452993927,5cyclictest0-21swapper/223:45:282
1145452993926,7cyclictest0-21swapper/221:00:002
1145452993926,6cyclictest1168597-21grep21:20:292
1145452993922,10cyclictest0-21swapper/221:35:272
1145452993921,10cyclictest0-21swapper/221:30:202
1145452993919,12cyclictest0-21swapper/221:10:292
114545099393,21cyclictest22-21rcuc/120:50:011
1145450993930,6cyclictest1154929-21unixbench_singl20:00:511
1145450993925,8cyclictest0-21swapper/122:35:291
1145450993925,10cyclictest0-21swapper/120:55:261
1145450993922,13cyclictest0-21swapper/119:50:291
1145450993922,13cyclictest0-21swapper/119:50:291
1145447993933,3cyclictest1170230-21find21:30:290
1145447993931,5cyclictest0-21swapper/019:45:130
1145447993929,7cyclictest0-21swapper/020:35:130
1145447993929,7cyclictest0-21swapper/020:35:120
114544799391,4cyclictest0-21swapper/023:45:160
1145452993829,5cyclictest0-21swapper/219:30:292
1145452993827,5cyclictest1167769-21grep21:15:282
1145450993826,7cyclictest0-21swapper/119:40:291
1145450993825,9cyclictest0-21swapper/100:20:011
1145450993824,8cyclictest0-21swapper/122:15:291
1145450993812,16cyclictest1196991-21/usr/sbin/munin00:10:181
1145447993833,2cyclictest0-21swapper/019:10:000
1145447993832,3cyclictest1201480-21lsblk00:35:210
1145447993831,4cyclictest0-21swapper/023:50:250
1145447993830,5cyclictest1177316-21grep22:15:170
1145447993830,5cyclictest0-21swapper/021:25:190
1145452993729,5cyclictest311ktimers/223:15:202
1145452993725,7cyclictest311ktimers/200:05:152
1145452993721,9cyclictest311ktimers/223:20:262
114545299371,4cyclictest0-21swapper/223:45:002
1145450993728,5cyclictest0-21swapper/123:40:291
1145450993727,6cyclictest0-21swapper/121:50:301
1145450993726,7cyclictest1193354-21grep23:45:291
1145450993726,7cyclictest0-21swapper/121:00:281
1145450993726,7cyclictest0-21swapper/121:00:281
1145450993724,9cyclictest231ktimers/120:20:131
114545099372,29cyclictest1148437-21/usr/sbin/munin19:25:241
1145450993721,9cyclictest1660-21snmpd00:37:111
114545299362,5cyclictest1181331-21munin-run22:40:012
1145452993625,7cyclictest311ktimers/219:25:152
1145452993623,7cyclictest0-21swapper/200:00:272
114545099369,22cyclictest14-21rcu_preempt22:10:281
1145450993629,4cyclictest0-21swapper/119:20:001
1145450993627,6cyclictest0-21swapper/120:50:051
1145450993625,8cyclictest0-21swapper/119:15:011
1145450993625,8cyclictest0-21swapper/119:15:011
1145450993624,8cyclictest0-21swapper/123:50:271
1145450993620,12cyclictest0-21swapper/120:35:271
1145450993620,12cyclictest0-21swapper/120:35:271
114545099361,29cyclictest0-21swapper/100:20:031
114545099361,29cyclictest0-21swapper/100:20:031
1145452993529,4cyclictest32-21ksoftirqd/219:45:192
1145452993527,5cyclictest311ktimers/222:50:152
1145452993526,7cyclictest311ktimers/200:30:152
1145452993525,5cyclictest0-21swapper/220:40:122
1145450993526,5cyclictest0-21swapper/123:25:291
1145450993524,7cyclictest1186520-21grep23:05:281
1145450993524,7cyclictest1186520-21grep23:05:271
1145450993523,9cyclictest0-21swapper/121:49:591
1145450993523,8cyclictest231ktimers/100:25:151
1145450993520,11cyclictest0-21swapper/123:15:291
114545099351,28cyclictest1190153-21/usr/sbin/munin23:30:211
1145452993426,5cyclictest311ktimers/223:05:192
1145452993426,5cyclictest311ktimers/223:05:182
1145452993425,7cyclictest311ktimers/219:10:112
1145452993425,7cyclictest311ktimers/219:10:102
1145452993424,7cyclictest311ktimers/221:25:132
1145450993426,5cyclictest0-21swapper/100:05:291
1145450993424,6cyclictest1159235-21grep20:25:431
1145450993423,6cyclictest1160021-21grep20:30:281
114545099342,26cyclictest832-21systemd-network20:19:001
114545099341,6cyclictest0-21swapper/123:25:021
114545099341,26cyclictest14-21rcu_preempt21:40:261
114545099341,26cyclictest14-21rcu_preempt21:40:261
114545299333,14cyclictest32-21ksoftirqd/219:10:012
1145452993320,5cyclictest0-21swapper/219:15:042
1145450993325,4cyclictest0-21swapper/121:35:291
1145450993324,6cyclictest0-21swapper/120:40:251
1145450993224,6cyclictest231ktimers/122:00:111
1145450993219,9cyclictest0-21swapper/121:55:271
1145452993123,6cyclictest311ktimers/222:55:142
1145452993123,6cyclictest311ktimers/220:00:112
114545099313,18cyclictest0-21swapper/121:10:201
1145450993123,5cyclictest0-21swapper/121:20:291
1145450993122,5cyclictest0-21swapper/122:25:211
1145452993022,5cyclictest311ktimers/219:50:242
1145452993022,5cyclictest311ktimers/219:50:232
1145450993023,5cyclictest1191085-21/usr/sbin/munin23:35:181
1145450993021,4cyclictest0-21swapper/120:15:011
1145450993020,6cyclictest1148129-21grep19:20:281
1145450993019,8cyclictest0-21swapper/122:05:291
1145450993012,16cyclictest167450irq/126-8000000.ethernet-tx119:49:241
114545099299,12cyclictest1200477-21/usr/sbin/munin00:30:191
1145450992921,5cyclictest22-21rcuc/123:55:241
1145450992921,5cyclictest22-21rcuc/123:55:241
1145450992910,13cyclictest167450irq/126-8000000.ethernet-tx122:23:201
1145450992910,13cyclictest167450irq/126-8000000.ethernet-tx122:23:191
1145450992819,6cyclictest0-21swapper/121:15:291
1145450992416,6cyclictest0-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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