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2026-01-04 - 10:51

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 Sun Jan 04, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
544000999330,23cyclictest30-21rcuc/200:30:002
544000999272,17cyclictest311ktimers/200:00:192
54399599791,3cyclictest0-21swapper/022:30:020
544000996810,16cyclictest580107-21/usr/sbin/munin22:40:192
543995996252,5cyclictest0-21swapper/020:45:110
544000995811,23cyclictest0-21swapper/221:35:002
543998995841,9cyclictest0-21swapper/122:25:011
543998995812,37cyclictest0-21swapper/122:55:281
543995995545,7cyclictest560168-21phc2sys20:40:290
54399599554,17cyclictest0-21swapper/022:15:010
54399599554,17cyclictest0-21swapper/022:15:010
54399599551,52cyclictest0-21swapper/022:20:120
543998995444,5cyclictest556162-21munin-plugin-st20:20:001
543998995345,5cyclictest585985-21grep23:15:011
543998995344,6cyclictest573994-21munin-plugin-st22:05:001
543995995245,2cyclictest0-21swapper/000:10:100
54399599523,16cyclictest0-21swapper/019:30:000
544000995134,10cyclictest0-21swapper/220:10:292
543998995113,8cyclictest14-21rcu_preempt00:00:001
543995995141,5cyclictest570618-21munin-plugin-st21:45:000
54399599514,13cyclictest15-21rcuc/019:55:010
54399599511,9cyclictest597196-21grep00:20:020
54399599511,9cyclictest597196-21grep00:20:020
544000995037,9cyclictest593627-21grep23:55:312
543995995040,5cyclictest167350irq/118-8000000.ethernet-tx022:30:230
543995995027,18cyclictest131ktimers/023:35:280
543998994931,13cyclictest0-21swapper/119:10:011
543998994931,13cyclictest0-21swapper/119:10:011
543995994840,4cyclictest167350irq/118-8000000.ethernet-tx021:15:220
54399599483,5cyclictest0-21swapper/022:55:220
543995994816,4cyclictest0-21swapper/020:20:280
543995994816,4cyclictest0-21swapper/020:20:280
54399599481,4cyclictest571346-21unixbench_multi21:45:300
54399599481,28cyclictest0-21swapper/000:00:000
544000994736,7cyclictest545808-21grep19:15:292
544000994718,24cyclictest0-21swapper/223:30:182
54399899476,31cyclictest0-21swapper/121:20:241
54399899474,29cyclictest559654-21apt-key20:40:011
543995994739,5cyclictest167350irq/118-8000000.ethernet-tx022:35:290
543995994730,15cyclictest167350irq/118-8000000.ethernet-tx020:55:170
54400099468,15cyclictest30-21rcuc/222:50:012
544000994633,9cyclictest552014-21latency_hist19:55:012
543998994629,9cyclictest0-21swapper/120:30:281
543998994626,14cyclictest0-21swapper/122:35:281
543995994637,6cyclictest20850irq/208-8000000.ethernet22:05:220
54400099455,19cyclictest311ktimers/222:20:002
544000994536,5cyclictest167550irq/134-8000000.ethernet-tx221:20:272
544000994526,12cyclictest0-21swapper/219:35:292
54399599451,8cyclictest0-21swapper/022:55:000
54399599445,8cyclictest0-21swapper/019:25:010
54399599442,5cyclictest587626-21unixbench_singl23:20:300
54399599441,41cyclictest0-21swapper/020:30:110
544000994330,8cyclictest0-21swapper/220:15:282
544000994330,7cyclictest0-21swapper/220:50:292
544000994315,3cyclictest30-21rcuc/223:45:302
543998994331,6cyclictest548383-21grep19:30:281
543998994329,8cyclictest0-21swapper/121:10:291
54399599438,20cyclictest15-21rcuc/023:30:010
543995994336,4cyclictest167350irq/118-8000000.ethernet-tx000:25:280
54399599432,7cyclictest0-21swapper/021:00:120
54399599432,5cyclictest599068-21cpu00:30:170
544000994230,8cyclictest0-21swapper/220:20:292
544000994230,8cyclictest0-21swapper/220:20:292
54399899427,31cyclictest568637-21proc_pri21:30:271
543998994228,9cyclictest0-21swapper/123:25:291
543998994226,10cyclictest0-21swapper/122:40:261
543995994238,2cyclictest0-21swapper/021:50:250
543995994235,4cyclictest167350irq/118-8000000.ethernet-tx023:10:180
544000994130,7cyclictest311ktimers/200:20:252
544000994129,7cyclictest0-21swapper/200:15:282
544000994129,7cyclictest0-21swapper/200:15:282
544000994128,9cyclictest0-21swapper/219:20:292
544000994128,8cyclictest0-21swapper/221:15:282
543998994131,4cyclictest0-21swapper/123:00:291
54399899412,3cyclictest0-21swapper/100:25:001
54399899411,3cyclictest0-21swapper/120:15:001
543995994136,2cyclictest0-21swapper/022:00:010
543995994134,4cyclictest167350irq/118-8000000.ethernet-tx020:25:280
543995994130,6cyclictest0-21swapper/022:40:290
54399599412,4cyclictest564125-21df_inode21:05:160
543995994124,11cyclictest0-21swapper/023:05:280
54399599411,5cyclictest0-21swapper/020:55:010
54399599411,4cyclictest0-21swapper/023:30:300
54399599411,38cyclictest0-21swapper/023:50:240
544000994028,7cyclictest0-21swapper/221:45:302
544000994027,9cyclictest0-21swapper/220:05:322
544000994025,8cyclictest0-21swapper/222:35:202
544000994024,8cyclictest0-21swapper/222:55:292
544000994023,9cyclictest0-21swapper/220:40:302
543998994032,6cyclictest587581-21unixbench_multi23:20:291
543998994032,4cyclictest167450irq/126-8000000.ethernet-tx119:55:281
543998994030,7cyclictest560486-21munin-plugin-st20:45:001
543998994026,10cyclictest599893-21/usr/sbin/munin00:35:191
543998994025,8cyclictest0-21swapper/122:25:291
543998994025,11cyclictest0-21swapper/119:50:201
54399599403,22cyclictest575868-21/usr/sbin/munin22:15:190
543995994031,5cyclictest0-21swapper/023:45:010
543995994031,5cyclictest0-21swapper/023:45:010
543995994029,8cyclictest559537-21munin-plugin-st20:40:010
543995994026,9cyclictest0-21swapper/023:15:220
543995994022,16cyclictest0-21swapper/019:15:250
54399599401,5cyclictest552206-21diskstats19:55:180
54399599401,4cyclictest599953-21df00:35:170
54399599401,4cyclictest0-21swapper/023:45:200
54399599401,3cyclictest554153-21/usr/sbin/munin20:05:280
544000993929,6cyclictest0-21swapper/222:30:002
544000993928,7cyclictest0-21swapper/200:10:272
544000993927,8cyclictest0-21swapper/222:05:302
544000993925,9cyclictest0-21swapper/200:35:222
543998993925,9cyclictest0-21swapper/100:05:291
543998993925,10cyclictest0-21swapper/119:10:221
543998993924,10cyclictest0-21swapper/123:35:241
54399899392,30cyclictest1660-21snmpd20:25:151
543995993933,3cyclictest0-21swapper/020:15:230
54399599392,4cyclictest593961-21diskstats00:00:180
543995993921,4cyclictest201156-1kworker/0:1H+mmc_complete21:30:010
54399599391,3cyclictest569632-21find21:35:320
54399599391,36cyclictest0-21swapper/019:40:340
54399599391,35cyclictest544605-21sendmail_mailqu19:10:280
544000993828,7cyclictest311ktimers/220:55:232
544000993825,7cyclictest30-21rcuc/220:05:002
544000993822,8cyclictest30-21rcuc/219:30:002
544000993821,11cyclictest311ktimers/223:39:592
544000993817,16cyclictest0-21swapper/221:50:012
543998993833,2cyclictest0-21swapper/122:50:281
543998993829,6cyclictest569709-21grep21:35:321
54399899381,30cyclictest0-21swapper/121:40:271
543995993834,2cyclictest0-21swapper/022:00:190
54399599381,3cyclictest0-21swapper/019:45:170
54399599381,35cyclictest0-21swapper/000:22:310
544000993728,6cyclictest311ktimers/223:50:132
544000993728,4cyclictest311ktimers/220:35:302
544000993726,7cyclictest0-21swapper/223:45:012
544000993726,7cyclictest0-21swapper/223:45:012
543998993727,5cyclictest0-21swapper/122:45:211
543998993722,11cyclictest1660-21snmpd19:15:031
54399899371,3cyclictest573029-21unixbench_multi21:55:261
54399599371,3cyclictest0-21swapper/020:00:180
54399599371,34cyclictest0-21swapper/021:30:280
544000993626,7cyclictest311ktimers/222:20:292
544000993625,7cyclictest0-21swapper/223:15:302
544000993620,9cyclictest0-21swapper/223:00:222
54399899363,4cyclictest0-21swapper/119:45:001
54399899363,30cyclictest0-21swapper/120:45:261
54399899363,27cyclictest571654-21/usr/sbin/munin21:50:181
543998993628,4cyclictest167450irq/126-8000000.ethernet-tx123:30:231
54399899362,30cyclictest24-21ksoftirqd/100:30:251
543995993630,3cyclictest167350irq/118-8000000.ethernet-tx000:10:000
543995993629,4cyclictest20850irq/208-8000000.ethernet21:20:170
543995993624,9cyclictest549311-21munin-plugin-st19:40:000
54399599361,3cyclictest0-21swapper/020:10:180
54399599361,33cyclictest0-21swapper/023:02:190
544000993528,4cyclictest311ktimers/223:25:272
544000993528,4cyclictest167550irq/134-8000000.ethernet-tx223:05:172
544000993528,4cyclictest14-21rcu_preempt21:25:162
544000993527,6cyclictest311ktimers/220:30:112
544000993526,4cyclictest0-21swapper/222:10:292
544000993526,4cyclictest0-21swapper/222:10:292
544000993525,6cyclictest0-21swapper/222:00:302
544000993525,6cyclictest0-21swapper/220:45:192
544000993521,8cyclictest311ktimers/200:30:172
543998993524,7cyclictest0-21swapper/120:20:271
543998993524,7cyclictest0-21swapper/120:20:261
543998993522,6cyclictest586182-21/usr/sbin/munin23:15:271
543998993521,9cyclictest0-21swapper/123:50:211
54400099346,18cyclictest30-21rcuc/219:30:192
544000993425,6cyclictest311ktimers/221:35:312
544000993424,6cyclictest311ktimers/221:10:282
544000993423,7cyclictest311ktimers/221:05:222
544000993423,7cyclictest0-21swapper/222:30:212
54400099341,3cyclictest0-21swapper/220:30:002
54400099341,27cyclictest544228-21df_inode19:10:182
543998993425,6cyclictest576508-21cron22:20:001
543998993424,6cyclictest0-21swapper/121:25:281
543998993423,5cyclictest0-21swapper/100:10:251
543998993421,9cyclictest0-21swapper/119:30:001
543995993419,13cyclictest0-21swapper/019:34:420
544000993326,4cyclictest311ktimers/219:55:272
544000993325,6cyclictest311ktimers/223:20:222
544000993322,7cyclictest0-21swapper/219:50:012
543998993324,6cyclictest231ktimers/123:46:191
543998993324,5cyclictest0-21swapper/121:45:291
54399899332,3cyclictest561606-21/usr/sbin/munin20:50:201
543998993322,7cyclictest0-21swapper/121:05:191
543998993321,9cyclictest0-21swapper/123:40:201
543998993321,9cyclictest0-21swapper/123:40:201
543995993327,4cyclictest0-21swapper/021:10:130
544000993222,7cyclictest311ktimers/222:50:042
544000993219,7cyclictest311ktimers/221:55:132
543998993222,5cyclictest0-21swapper/120:00:211
543998993221,8cyclictest548665-21/usr/sbin/munin19:35:111
543995993225,5cyclictest0-21swapper/022:45:110
544000993121,7cyclictest569976-21/usr/sbin/munin21:40:192
543998993121,7cyclictest0-21swapper/119:20:301
543998993121,6cyclictest47-21kauditd22:15:011
543998993121,6cyclictest47-21kauditd22:15:011
543998993121,5cyclictest0-21swapper/122:05:301
544000993018,6cyclictest0-21swapper/200:05:252
544000993016,7cyclictest311ktimers/221:00:162
54399899304,17cyclictest578407-21/usr/sbin/munin22:30:211
543998993020,6cyclictest0-21swapper/100:00:291
543998993020,5cyclictest0-21swapper/100:25:261
543998993018,9cyclictest0-21swapper/119:50:011
543998993018,7cyclictest0-21swapper/120:55:291
543998992920,4cyclictest0-21swapper/121:00:251
543998992919,6cyclictest0-21swapper/120:05:301
544000992823,3cyclictest311ktimers/219:10:022
544000992823,3cyclictest311ktimers/219:10:012
544000992822,4cyclictest311ktimers/223:10:282
544000992820,4cyclictest0-21swapper/219:40:262
543998992821,4cyclictest0-21swapper/121:20:011
543998992819,6cyclictest0-21swapper/123:05:291
543995992817,7cyclictest14-21rcu_preempt19:10:010
543995992817,7cyclictest14-21rcu_preempt19:10:010
54399899271,24cyclictest0-21swapper/100:15:181
54399899271,24cyclictest0-21swapper/100:15:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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