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2026-08-01 - 05:55

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 01, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
797974997771,4cyclictest311ktimers/221:10:022
797974997522,22cyclictest311ktimers/200:15:012
797976997326,40cyclictest0-21swapper/319:45:293
797974996358,2cyclictest0-21swapper/221:35:022
797970995648,4cyclictest0-21swapper/021:15:140
797970995648,4cyclictest0-21swapper/021:15:130
797973995445,5cyclictest810897-21munin-plugin-st20:25:001
79797399531,4cyclictest0-21swapper/122:55:191
797970995345,4cyclictest167350irq/118-8000000.ethernet-tx020:50:290
797974995233,10cyclictest0-21swapper/223:15:012
797974995233,10cyclictest0-21swapper/223:15:002
797970995215,27cyclictest0-21swapper/020:10:010
797970995215,27cyclictest0-21swapper/020:10:010
797973995145,4cyclictest24-21ksoftirqd/121:10:021
797973995041,5cyclictest839024-21munin-plugin-st23:10:001
797970995021,26cyclictest832745-21kernelversion22:30:250
797973994939,7cyclictest847548-21munin-plugin-st00:00:011
797973994937,5cyclictest0-21swapper/120:40:261
79797099496,37cyclictest837506-21grep23:00:010
79797099493,43cyclictest0-21swapper/022:35:130
797973994839,5cyclictest0-21swapper/121:55:171
797970994818,8cyclictest805177-21/usr/sbin/munin19:50:240
797974994719,12cyclictest311ktimers/222:45:122
79797099472,6cyclictest853682-21gunzip00:35:260
79797099471,43cyclictest0-21swapper/000:00:270
79797099471,42cyclictest0-21swapper/023:10:000
797974994634,7cyclictest836369-21grep22:50:292
797974994628,11cyclictest311ktimers/219:55:122
797974994627,13cyclictest311ktimers/222:25:102
797973994634,8cyclictest799906-21sendmail19:20:001
797973994615,26cyclictest850043-21kernelversion00:15:231
79797099464,5cyclictest0-21swapper/019:10:200
797970994639,4cyclictest821119-21munin-plugin-st21:25:000
79797099461,5cyclictest832433-21wc22:30:010
79797399453,5cyclictest798916-21users19:15:011
79797399452,22cyclictest22-21rcuc/119:35:191
79797099451,42cyclictest0-21swapper/000:15:260
797970994436,4cyclictest0-21swapper/022:00:010
797970994431,9cyclictest0-21swapper/023:50:000
79797099442,7cyclictest808730-21lsblk20:10:280
79797099441,40cyclictest812771-21/usr/sbin/munin20:35:310
797974994335,5cyclictest30-21rcuc/220:50:192
797974994332,5cyclictest0-21swapper/220:45:322
797974994332,5cyclictest0-21swapper/220:45:322
797973994327,10cyclictest0-21swapper/123:40:001
797973994327,10cyclictest0-21swapper/123:40:001
797970994336,4cyclictest20850irq/208-8000000.ethernet22:55:000
797970994335,5cyclictest0-21swapper/019:15:280
797970994334,5cyclictest0-21swapper/020:35:000
797974994234,5cyclictest809992-21grep20:15:302
797974994229,8cyclictest0-21swapper/223:05:292
797973994227,10cyclictest0-21swapper/123:10:301
797973994227,10cyclictest0-21swapper/123:10:291
797970994235,4cyclictest823635-21sendmail21:40:000
797970994233,6cyclictest826119-21unixbench_singl21:50:300
797970994230,9cyclictest806658-21apt20:00:010
79797099421,5cyclictest0-21swapper/019:30:200
79797099421,38cyclictest1283-21cron19:50:000
79797099421,21cyclictest0-21swapper/000:25:000
797974994132,6cyclictest804873-21grep19:45:302
797974994124,12cyclictest0-21swapper/222:45:002
797974994117,18cyclictest311ktimers/223:00:142
797974994117,14cyclictest820477-21/usr/sbin/munin21:20:192
797974994112,17cyclictest311ktimers/223:15:122
797973994131,5cyclictest0-21swapper/100:25:291
797973994131,5cyclictest0-21swapper/100:25:291
797970994134,4cyclictest20650irq/252-8000000.ethernet21:45:210
79797099411,3cyclictest0-21swapper/022:45:270
797974994030,7cyclictest844946-21grep23:40:292
79797399408,2cyclictest0-21swapper/122:20:011
797973994031,5cyclictest820273-21sendmail21:20:001
797973994031,5cyclictest820273-21sendmail21:20:001
797973994031,5cyclictest0-21swapper/122:25:201
797973994030,6cyclictest0-21swapper/121:05:001
797973994026,7cyclictest0-21swapper/100:10:241
797973994025,7cyclictest0-21swapper/120:10:351
797973994013,13cyclictest822154-21/usr/sbin/munin21:30:191
79797099406,24cyclictest15-21rcuc/019:40:010
797970994033,4cyclictest800706-21unixbench_singl19:20:290
797970994033,4cyclictest167350irq/118-8000000.ethernet-tx023:30:180
797970994033,4cyclictest167350irq/118-8000000.ethernet-tx022:00:230
797970994030,7cyclictest0-21swapper/023:25:280
797970994019,19cyclictest19750irq/27-20000000.i2c21:30:130
79797099401,37cyclictest0-21swapper/021:00:150
79797099401,34cyclictest0-21swapper/023:15:020
797974993929,6cyclictest844179-21sendmail23:40:002
797974993929,6cyclictest844179-21sendmail23:40:002
797974993929,6cyclictest827846-21grep22:00:302
797974993927,6cyclictest0-21swapper/221:05:272
797974993924,8cyclictest0-21swapper/219:40:282
797973993921,12cyclictest231ktimers/120:30:121
79797399391,31cyclictest0-21swapper/119:40:221
79797099391,4cyclictest828231-21df_inode22:05:180
79797099391,4cyclictest828231-21df_inode22:05:180
797974993824,9cyclictest0-21swapper/200:20:322
797974993824,8cyclictest0-21swapper/221:50:302
79797399383,12cyclictest848400-21apt-get00:05:011
797973993829,5cyclictest0-21swapper/121:45:001
797973993828,7cyclictest813419-21sendmail20:40:011
797973993826,8cyclictest0-21swapper/121:35:291
797973993825,8cyclictest0-21swapper/123:25:191
797973993819,10cyclictest0-21swapper/119:25:291
797973993819,10cyclictest0-21swapper/119:25:291
797970993831,4cyclictest20850irq/208-8000000.ethernet23:55:180
79797099382,34cyclictest0-21swapper/019:40:120
79797099382,24cyclictest805799-21kworker/0:2-events_long23:25:010
797970993821,15cyclictest0-21swapper/023:00:140
79797099381,4cyclictest0-21swapper/019:25:180
79797099381,4cyclictest0-21swapper/019:25:180
79797099381,3cyclictest853230-21latency_hist00:35:010
79797099381,3cyclictest0-21swapper/023:40:170
79797099381,35cyclictest0-21swapper/022:20:110
79797099381,35cyclictest0-21swapper/020:55:130
79797099381,35cyclictest0-21swapper/020:55:130
797974993728,5cyclictest0-21swapper/223:30:292
797974993725,9cyclictest311ktimers/200:10:082
79797499371,5cyclictest0-21swapper/221:30:012
797974993713,15cyclictest836684-21/usr/sbin/munin22:55:192
797973993729,4cyclictest167450irq/126-8000000.ethernet-tx120:25:261
797973993724,9cyclictest0-21swapper/122:05:291
797973993724,9cyclictest0-21swapper/122:05:291
79797399371,2cyclictest0-21swapper/122:05:011
797973993712,8cyclictest1660-21snmpd19:50:241
797970993731,4cyclictest20850irq/208-8000000.ethernet22:10:190
797970993731,4cyclictest0-21swapper/020:00:180
797970993731,3cyclictest0-21swapper/020:15:160
79797099371,34cyclictest0-21swapper/021:05:180
79797099371,2cyclictest0-21swapper/022:15:280
79797099370,2cyclictest0-21swapper/000:10:140
797974993625,7cyclictest800725-21grep19:20:302
797974993624,8cyclictest0-21swapper/220:55:302
797974993624,8cyclictest0-21swapper/220:55:292
797974993624,6cyclictest0-21swapper/220:20:222
79797499361,3cyclictest0-21swapper/222:10:012
79797499361,3cyclictest0-21swapper/222:10:012
797973993631,3cyclictest0-21swapper/120:45:231
797973993631,3cyclictest0-21swapper/120:45:231
79797399361,33cyclictest0-21swapper/120:05:241
79797399361,33cyclictest0-21swapper/120:05:241
79797399361,28cyclictest0-21swapper/121:05:211
797970993629,4cyclictest20850irq/208-8000000.ethernet00:25:190
797970993629,4cyclictest20850irq/208-8000000.ethernet00:25:190
79797099362,4cyclictest821735-21cut21:25:260
79797099361,3cyclictest0-21swapper/023:55:010
797974993525,7cyclictest0-21swapper/219:30:012
797974993525,7cyclictest0-21swapper/219:30:012
797974993525,5cyclictest0-21swapper/222:20:162
797974993525,5cyclictest0-21swapper/220:00:292
797974993524,7cyclictest812512-21grep20:30:292
797974993524,6cyclictest852855-21grep00:30:282
797974993517,9cyclictest0-21swapper/222:15:222
79797499351,2cyclictest0-21swapper/220:10:012
79797499351,2cyclictest0-21swapper/220:10:012
797973993528,4cyclictest167450irq/126-8000000.ethernet-tx123:30:301
797973993525,7cyclictest852305-21/usr/sbin/munin00:30:241
797973993525,7cyclictest835646-21munin-run22:50:001
797973993523,8cyclictest0-21swapper/119:30:271
797973993523,8cyclictest0-21swapper/119:20:301
797973993520,10cyclictest0-21swapper/123:40:261
79797399351,5cyclictest0-21swapper/123:25:011
797970993528,4cyclictest167350irq/118-8000000.ethernet-tx023:15:000
797970993528,4cyclictest167350irq/118-8000000.ethernet-tx023:15:000
79797099351,32cyclictest0-21swapper/023:35:270
79797099351,32cyclictest0-21swapper/023:35:270
79797099351,21cyclictest0-21swapper/021:15:010
797974993425,5cyclictest847506-21grep23:55:292
797974993425,5cyclictest0-21swapper/221:55:302
797974993425,4cyclictest0-21swapper/219:10:282
797974993423,6cyclictest0-21swapper/220:40:162
797974993423,5cyclictest0-21swapper/223:45:262
797974993421,7cyclictest30-21rcuc/200:35:042
797974993420,9cyclictest0-21swapper/223:50:282
797974993420,7cyclictest0-21swapper/219:50:252
797974993419,10cyclictest825327-21cron21:50:002
797974993418,5cyclictest311ktimers/223:25:112
79797499341,4cyclictest0-21swapper/219:35:002
79797399349,19cyclictest22-21rcuc/121:25:191
797973993424,7cyclictest1660-21snmpd20:15:291
797973993424,6cyclictest0-21swapper/122:10:281
797973993413,15cyclictest231ktimers/122:50:111
79797399341,27cyclictest0-21swapper/121:45:231
79797399341,27cyclictest0-21swapper/120:00:191
797970993428,4cyclictest20850irq/208-8000000.ethernet21:45:000
797970993428,4cyclictest0-21swapper/020:41:270
79797099341,3cyclictest0-21swapper/000:05:040
79797099341,31cyclictest0-21swapper/020:45:240
79797099341,31cyclictest0-21swapper/020:45:240
79797099341,31cyclictest0-21swapper/020:28:430
797974993326,4cyclictest14-21rcu_preempt22:10:292
797974993323,6cyclictest824377-21grep21:40:292
797974993322,8cyclictest0-21swapper/220:35:302
79797499331,26cyclictest851516-21df00:25:182
79797499331,26cyclictest851516-21df00:25:182
797974993312,4cyclictest832-21systemd-network00:05:302
797973993325,5cyclictest816148-21/usr/sbin/munin20:55:191
797973993325,5cyclictest816148-21/usr/sbin/munin20:55:191
797973993324,6cyclictest0-21swapper/123:45:281
797973993324,5cyclictest0-21swapper/123:50:291
797970993327,4cyclictest20850irq/208-8000000.ethernet20:20:160
79797499326,13cyclictest30-21rcuc/223:25:012
797974993223,5cyclictest30-21rcuc/222:35:182
797974993222,7cyclictest30-21rcuc/219:15:202
797974993222,5cyclictest0-21swapper/222:30:282
797974993222,5cyclictest0-21swapper/219:10:012
797974993221,8cyclictest0-21swapper/200:00:312
797973993225,4cyclictest0-21swapper/122:30:281
797973993223,6cyclictest0-21swapper/119:50:001
797970993224,5cyclictest131ktimers/022:40:260
79797499312,4cyclictest0-21swapper/221:40:002
79797499311,28cyclictest0-21swapper/221:15:182
79797499311,28cyclictest0-21swapper/221:15:182
797973993124,4cyclictest0-21swapper/121:20:111
797973993121,7cyclictest231ktimers/100:20:291
797973993121,4cyclictest0-21swapper/122:20:271
797973993022,4cyclictest0-21swapper/122:40:211
797973993021,4cyclictest0-21swapper/100:35:201
797974992918,8cyclictest311ktimers/221:00:242
797974992918,8cyclictest311ktimers/220:25:142
797973992920,5cyclictest0-21swapper/121:50:301
797973992917,8cyclictest0-21swapper/119:10:011
79797099299,13cyclictest0-21swapper/019:10:000
797974992822,4cyclictest0-21swapper/220:10:282
797974992818,8cyclictest311ktimers/219:35:122
797973992823,4cyclictest0-21swapper/123:15:201
797973992820,6cyclictest1660-21snmpd19:55:251
79797399279,5cyclictest848400-21apt-get00:05:011
797973992722,3cyclictest837956-21ptp4l23:00:281
797973992719,6cyclictest231ktimers/120:50:191
797973992516,6cyclictest231ktimers/122:35:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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