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2026-05-16 - 12:57

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 16, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4116968995811,8cyclictest4117791-21munin-node19:15:020
411697199557,43cyclictest22-21rcuc/121:55:021
411697199557,43cyclictest22-21rcuc/121:55:021
4116972995235,14cyclictest311ktimers/221:50:122
4116972995235,14cyclictest311ktimers/221:50:112
4116968995240,7cyclictest0-21swapper/021:10:250
4116971995136,11cyclictest0-21swapper/122:30:001
411697299506,26cyclictest0-21swapper/223:25:012
411697299504,28cyclictest32-21ksoftirqd/220:45:012
4116971995042,4cyclictest4140294-21munin-plugin-st21:25:011
411697199501,22cyclictest0-21swapper/120:05:191
4116968994913,3cyclictest0-21swapper/023:55:010
411697199489,22cyclictest4126780-21apt-key20:05:011
4116971994839,4cyclictest0-21swapper/121:25:271
411696899481,17cyclictest0-21swapper/020:25:010
411697299474,12cyclictest32-21ksoftirqd/223:15:022
411697299474,12cyclictest32-21ksoftirqd/223:15:012
4116972994738,5cyclictest4153012-21grep22:35:282
4116972994738,5cyclictest4153012-21grep22:35:282
4116971994739,4cyclictest4122384-21apt-get19:40:001
4116971994731,8cyclictest4125727-21grep19:55:281
4116968994740,4cyclictest167350irq/118-8000000.ethernet-tx023:30:300
411696899472,14cyclictest274-21systemd-journal23:05:000
4116972994610,16cyclictest0-21swapper/220:05:012
411697199467,9cyclictest4121598-21gpg-connect-age19:35:011
4116971994634,7cyclictest4159854-21grep23:15:271
4116968994632,9cyclictest0-21swapper/022:45:300
4116968994613,31cyclictest0-21swapper/022:50:210
4116972994538,4cyclictest4158280-21grep23:10:012
4116972994533,8cyclictest0-21swapper/200:25:312
4116972994533,7cyclictest0-21swapper/200:25:002
4116972994528,9cyclictest0-21swapper/200:30:262
4116972994526,8cyclictest0-21swapper/222:55:282
4116971994539,4cyclictest231ktimers/120:15:121
411697299443,8cyclictest30-21rcuc/222:10:012
4116972994414,10cyclictest4145435-21apt-get21:55:012
4116972994414,10cyclictest4145435-21apt-get21:55:012
411697199444,23cyclictest24-21ksoftirqd/100:10:011
4116971994437,5cyclictest231ktimers/122:20:001
4116971994434,7cyclictest0-21swapper/100:25:311
411697199441,8cyclictest0-21swapper/120:55:011
4116968994437,4cyclictest167350irq/118-8000000.ethernet-tx019:25:240
4116968994436,5cyclictest4136918-21munin-plugin-st21:05:000
4116968994434,5cyclictest0-21swapper/019:40:050
4116968994432,5cyclictest4125741-21unixbench_multi19:55:290
4116968994431,10cyclictest4149748-21munin-plugin-st22:19:590
411696899441,13cyclictest0-21swapper/022:25:010
4116972994333,5cyclictest4129305-21run-parts20:20:002
4116972994329,7cyclictest4150499-21grep22:20:282
4116972994329,10cyclictest0-21swapper/219:55:292
411697299431,27cyclictest0-21swapper/222:50:002
4116971994336,4cyclictest0-21swapper/122:55:271
4116971994335,4cyclictest0-21swapper/119:10:161
4116971994333,6cyclictest4160812-21cron23:25:011
4116971994331,8cyclictest4158209-21grep23:05:281
4116968994337,3cyclictest20650irq/252-8000000.ethernet20:30:200
4116968994336,4cyclictest167350irq/118-8000000.ethernet-tx020:57:430
4116968994336,4cyclictest0-21swapper/022:30:290
411696899432,6cyclictest4161090-21diskstats23:25:190
4116968994326,15cyclictest0-21swapper/021:05:270
4116968994326,15cyclictest0-21swapper/021:05:270
4116972994229,7cyclictest4134339-21grep20:45:262
4116971994228,9cyclictest4162443-21grep23:30:291
4116968994236,3cyclictest14-21rcu_preempt20:20:010
4116968994233,5cyclictest0-21swapper/021:35:290
4116972994132,5cyclictest0-21swapper/222:30:292
4116971994132,4cyclictest0-21swapper/120:20:281
4116971994128,8cyclictest0-21swapper/100:05:011
4116971994123,15cyclictest22-21rcuc/121:05:011
4116971994123,15cyclictest22-21rcuc/121:05:011
4116971994122,9cyclictest0-21swapper/123:10:281
4116971994122,9cyclictest0-21swapper/123:10:281
4116971994122,14cyclictest0-21swapper/119:20:271
4116968994132,5cyclictest167350irq/118-8000000.ethernet-tx021:40:180
4116968994132,5cyclictest167350irq/118-8000000.ethernet-tx021:40:180
4116968994132,4cyclictest4122420-21latency_hist19:40:010
4116968994130,8cyclictest0-21swapper/022:30:000
4116968994118,19cyclictest0-21swapper/022:00:180
411696899411,38cyclictest0-21swapper/021:25:280
411696899411,38cyclictest0-21swapper/020:40:130
4116972994030,6cyclictest0-21swapper/222:25:292
4116972994029,5cyclictest0-21swapper/221:30:192
4116972994028,8cyclictest0-21swapper/220:40:002
4116972994028,6cyclictest4121388-21grep19:30:292
4116972994027,9cyclictest4136063-21sendmail21:00:002
4116972994024,8cyclictest0-21swapper/223:35:282
4116972994024,8cyclictest0-21swapper/223:35:282
4116972994024,8cyclictest0-21swapper/200:00:162
4116971994029,6cyclictest0-21swapper/121:00:011
4116971994028,5cyclictest0-21swapper/122:50:191
411696899407,17cyclictest4169453-21/usr/sbin/munin00:15:190
411696899407,17cyclictest4169453-21/usr/sbin/munin00:15:180
4116968994033,4cyclictest167350irq/118-8000000.ethernet-tx000:00:180
4116968994028,7cyclictest0-21swapper/019:50:280
4116972993930,5cyclictest0-21swapper/220:50:292
4116972993930,4cyclictest0-21swapper/223:30:292
4116972993926,9cyclictest0-21swapper/219:20:292
4116972993925,6cyclictest0-21swapper/221:15:212
4116972993923,9cyclictest0-21swapper/219:35:272
4116971993930,4cyclictest14-21rcu_preempt19:50:291
4116971993929,5cyclictest0-21swapper/123:30:011
4116971993926,9cyclictest0-21swapper/121:45:001
4116971993926,9cyclictest0-21swapper/121:45:001
4116971993922,10cyclictest22-21rcuc/122:45:211
4116968993933,4cyclictest0-21swapper/020:00:290
4116968993933,3cyclictest4127154-21fschecks_time20:05:210
4116968993932,4cyclictest167350irq/118-8000000.ethernet-tx022:10:130
4116968993931,5cyclictest4156460-21grep22:55:280
4116968993931,5cyclictest167350irq/118-8000000.ethernet-tx022:00:010
4116968993931,5cyclictest167350irq/118-8000000.ethernet-tx022:00:000
4116968993930,5cyclictest0-21swapper/022:40:300
4116968993925,10cyclictest0-21swapper/023:45:180
4116968993923,14cyclictest0-21swapper/022:05:170
411696899391,5cyclictest0-21swapper/022:40:020
411696899391,5cyclictest0-21swapper/022:40:010
411696899391,36cyclictest0-21swapper/000:30:090
411696899391,35cyclictest0-21swapper/019:20:010
411697299387,26cyclictest311ktimers/222:50:252
4116972993832,3cyclictest0-21swapper/223:45:212
4116972993826,5cyclictest0-21swapper/220:10:002
4116972993824,9cyclictest0-21swapper/221:20:212
4116971993830,5cyclictest4165037-21munin-plugin-st23:50:011
4116971993830,5cyclictest4123313-21munin-plugin-st19:44:591
4116971993823,8cyclictest0-21swapper/119:15:291
4116971993814,15cyclictest4152480-21/usr/sbin/munin22:35:191
4116971993814,15cyclictest4152480-21/usr/sbin/munin22:35:191
4116968993832,4cyclictest0-21swapper/021:15:130
411696899382,33cyclictest0-21swapper/023:15:150
4116968993822,14cyclictest0-21swapper/023:05:180
411696899381,29cyclictest4121609-21latency_hist19:35:010
411697299377,19cyclictest30-21rcuc/221:00:202
4116972993730,3cyclictest311ktimers/223:15:102
4116972993728,5cyclictest311ktimers/219:25:192
4116972993728,4cyclictest0-21swapper/200:35:272
4116972993725,8cyclictest14-21rcu_preempt21:50:002
4116972993724,7cyclictest311ktimers/219:15:282
4116972993724,4cyclictest0-21swapper/219:15:012
4116972993721,9cyclictest4137637-21grep21:05:282
4116972993721,9cyclictest4137637-21grep21:05:282
4116971993728,5cyclictest0-21swapper/100:30:271
4116971993727,6cyclictest4147979-21grep22:05:281
4116971993727,6cyclictest4144507-21grep21:45:271
4116971993726,6cyclictest0-21swapper/120:40:271
4116971993724,7cyclictest0-21swapper/121:15:291
4116971993722,9cyclictest0-21swapper/121:05:011
411696899374,4cyclictest4128397-21unixbench_singl20:10:270
4116968993731,4cyclictest0-21swapper/020:25:110
4116968993731,4cyclictest0-21swapper/020:25:110
4116968993727,7cyclictest0-21swapper/000:10:020
4116968993722,13cyclictest0-21swapper/000:25:000
411697299366,18cyclictest0-21swapper/223:55:192
4116972993626,7cyclictest311ktimers/221:40:282
4116972993626,7cyclictest311ktimers/221:40:272
4116972993626,6cyclictest311ktimers/219:40:202
4116972993611,3cyclictest2-21kthreadd21:39:242
4116971993627,5cyclictest4130898-21grep20:25:291
4116971993627,5cyclictest4130898-21grep20:25:281
4116971993627,5cyclictest0-21swapper/123:35:271
4116971993627,5cyclictest0-21swapper/123:35:271
4116971993624,7cyclictest231ktimers/100:00:001
4116971993623,8cyclictest0-21swapper/120:35:281
4116971993619,10cyclictest231ktimers/123:40:241
4116968993630,4cyclictest0-21swapper/023:40:100
4116968993630,4cyclictest0-21swapper/020:40:000
4116968993629,4cyclictest0-21swapper/023:35:130
4116968993629,4cyclictest0-21swapper/023:35:130
4116968993629,4cyclictest0-21swapper/021:45:190
4116968993628,6cyclictest131ktimers/000:10:220
411697299359,4cyclictest2-21kthreadd20:22:212
4116972993527,4cyclictest0-21swapper/221:10:262
4116972993526,5cyclictest311ktimers/200:15:202
4116972993526,5cyclictest311ktimers/200:15:192
4116972993525,7cyclictest0-21swapper/222:15:302
4116971993526,6cyclictest231ktimers/122:30:231
4116971993526,5cyclictest22-21rcuc/121:35:191
4116971993520,10cyclictest0-21swapper/122:20:271
4116971993516,13cyclictest231ktimers/123:00:261
411696899353,28cyclictest4166662-21grep23:55:290
4116968993524,8cyclictest4140173-21unixbench_multi21:20:290
411696899351,4cyclictest4134729-21tune2fs20:50:220
411696899351,32cyclictest0-21swapper/019:22:000
411696899351,21cyclictest4173148-1kworker/0:0H+kblockd00:40:010
4116972993425,6cyclictest4165774-21unixbench_multi23:50:282
4116972993425,5cyclictest4131799-21grep20:30:282
4116972993424,6cyclictest311ktimers/222:45:002
4116972993423,8cyclictest0-21swapper/223:25:282
4116971993426,4cyclictest0-21swapper/122:40:291
4116971993425,6cyclictest231ktimers/100:15:231
4116971993425,6cyclictest231ktimers/100:15:231
4116971993424,7cyclictest0-21swapper/120:10:251
4116971993422,6cyclictest4170854-21grep00:20:271
4116971993416,10cyclictest0-21swapper/119:25:201
411697199341,3cyclictest0-21swapper/122:00:021
411697199341,3cyclictest0-21swapper/122:00:011
4116968993427,5cyclictest131ktimers/020:45:210
411696899341,3cyclictest0-21swapper/021:53:270
411696899341,3cyclictest0-21swapper/021:53:270
411696899341,31cyclictest0-21swapper/000:26:290
411696899341,2cyclictest0-21swapper/023:20:230
411697299332,6cyclictest4146348-21kworker/u8:1+rpciod22:01:192
4116972993319,8cyclictest0-21swapper/200:05:282
411697299331,27cyclictest0-21swapper/220:10:162
4116971993323,4cyclictest22-21rcuc/120:30:221
4116971993321,9cyclictest4141918-21grep21:30:271
4116971993320,9cyclictest0-21swapper/120:45:261
4116968993328,3cyclictest20850irq/208-8000000.ethernet23:10:100
4116968993328,3cyclictest20850irq/208-8000000.ethernet23:10:100
411696899331,29cyclictest131ktimers/021:30:270
4116972993224,5cyclictest0-21swapper/221:25:182
4116971993225,5cyclictest4169256-21munin-plugin-st00:14:591
4116971993225,4cyclictest231ktimers/119:50:011
4116971993224,5cyclictest231ktimers/121:10:301
4116971993224,4cyclictest0-21swapper/122:10:181
4116971993217,9cyclictest231ktimers/100:35:201
4116971993213,16cyclictest231ktimers/119:10:001
4116972993124,4cyclictest311ktimers/223:00:242
4116972993123,6cyclictest4163555-21/usr/sbin/munin23:40:262
4116972993119,9cyclictest0-21swapper/200:10:272
411696899311,5cyclictest4123998-21awk19:45:280
411696899311,2cyclictest0-21swapper/019:10:020
411697299304,13cyclictest4124069-21unixbench_multi19:45:282
4116972993017,9cyclictest4124927-21grep19:50:282
4116971993019,8cyclictest0-21swapper/123:50:211
4116971992917,8cyclictest0-21swapper/122:00:171
411697299285,14cyclictest4147749-21phc2sys22:05:252
411697299284,17cyclictest4130782-21ptp4l-jitter20:25:272
411697299284,17cyclictest4130782-21ptp4l-jitter20:25:262
4116972992820,5cyclictest0-21swapper/219:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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