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2026-08-04 - 10:28

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 Tue Aug 04, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3449358997514,16cyclictest3480379-21/usr/sbin/munin22:10:181
344935899633,5cyclictest0-21swapper/121:40:021
344935899601,28cyclictest0-21swapper/121:50:021
344935599602,56cyclictest0-21swapper/000:00:020
3449359995948,6cyclictest3450161-21munin-plugin-st19:15:002
344935899591,30cyclictest0-21swapper/122:50:011
344935899591,30cyclictest0-21swapper/122:50:011
3449359995543,7cyclictest3460598-21grep20:10:282
3449359995442,7cyclictest311ktimers/223:45:022
3449355995339,10cyclictest0-21swapper/000:40:000
3449359995240,9cyclictest311ktimers/220:25:122
3449355995245,3cyclictest0-21swapper/021:00:260
3449355995243,4cyclictest0-21swapper/022:55:240
3449359995136,9cyclictest0-21swapper/200:05:292
3449358995031,14cyclictest0-21swapper/122:00:291
3449359994937,9cyclictest1283-21cron21:59:592
3449359994937,7cyclictest0-21swapper/200:30:222
3449358994937,8cyclictest0-21swapper/119:50:011
3449358994937,7cyclictest3504049-21unixbench_singl00:25:281
3449355994944,4cyclictest0-21swapper/020:05:210
3449358994836,6cyclictest3490389-21unixbench_multi23:05:291
3449359994739,5cyclictest0-21swapper/220:35:002
3449359994739,5cyclictest0-21swapper/220:35:002
3449359994735,8cyclictest0-21swapper/222:10:292
3449359994733,8cyclictest3462269-21grep20:20:292
3449358994735,8cyclictest3468368-21sendmail21:00:011
3449358994735,8cyclictest3468368-21sendmail21:00:011
3449355994740,4cyclictest167350irq/118-8000000.ethernet-tx000:15:260
3449355994739,4cyclictest167350irq/118-8000000.ethernet-tx019:40:010
3449359994635,6cyclictest3483808-21cat22:30:012
3449359994634,8cyclictest3473325-21grep21:25:302
3449358994636,6cyclictest0-21swapper/121:00:281
344935899461,6cyclictest0-21swapper/119:30:011
3449355994638,6cyclictest15-21rcuc/023:35:010
3449359994534,6cyclictest3475874-21grep21:40:292
3449359994531,9cyclictest3487886-21grep22:50:312
3449358994534,7cyclictest3459732-21unixbench_multi20:05:281
344935899452,34cyclictest0-21swapper/119:35:021
344935599458,33cyclictest34670621ssh20:50:230
3449355994536,5cyclictest0-21swapper/022:25:130
3449355994535,5cyclictest167350irq/118-8000000.ethernet-tx021:55:290
3449359994434,4cyclictest0-21swapper/222:15:182
3449359994433,8cyclictest311ktimers/222:00:142
3449359994433,7cyclictest3482683-21grep22:20:282
3449359994433,7cyclictest0-21swapper/220:05:292
3449359994430,8cyclictest311ktimers/221:15:132
3449359994430,5cyclictest0-21swapper/222:45:012
3449355994438,3cyclictest167350irq/118-8000000.ethernet-tx019:47:000
3449355994433,8cyclictest0-21swapper/019:30:000
3449355994431,8cyclictest0-21swapper/000:25:280
3449359994333,7cyclictest311ktimers/200:10:132
3449359994331,8cyclictest0-21swapper/219:35:282
3449358994332,8cyclictest3492061-21unixbench_multi23:15:291
3449358994327,12cyclictest3462399-21grep20:25:011
3449355994335,4cyclictest3487948-21apt22:54:590
3449359994236,4cyclictest3468247-21unixbench_multi20:55:292
3449359994236,4cyclictest3468247-21unixbench_multi20:55:292
3449359994229,9cyclictest0-21swapper/223:55:292
3449359994229,9cyclictest0-21swapper/219:55:272
3449359994229,9cyclictest0-21swapper/219:55:262
3449358994230,8cyclictest0-21swapper/122:54:591
3449358994226,10cyclictest0-21swapper/119:55:201
3449358994226,10cyclictest0-21swapper/119:55:201
3449355994237,3cyclictest167350irq/118-8000000.ethernet-tx022:03:010
3449355994231,8cyclictest3471735-21sendmail21:20:000
344935599422,3cyclictest3490109-21irqstats23:05:220
3449355994216,24cyclictest0-21swapper/021:35:270
3449359994133,4cyclictest3455310-21ptp4l-jitter19:40:292
3449359994132,5cyclictest1261-21rs:main2
3449359994131,6cyclictest3467441-21grep20:50:312
3449359994131,6cyclictest0-21swapper/222:30:292
3449359994129,9cyclictest0-21swapper/221:30:302
3449359994128,9cyclictest0-21swapper/221:45:302
3449359994128,9cyclictest0-21swapper/200:00:302
3449359994127,10cyclictest0-21swapper/221:35:212
3449358994133,5cyclictest3489611-21grep23:00:311
3449355994135,3cyclictest0-21swapper/023:40:090
3449355994133,5cyclictest20850irq/208-8000000.ethernet22:05:290
3449355994131,5cyclictest3486137-21grep22:40:290
3449355994129,6cyclictest3462251-21grep20:20:290
3449355994127,9cyclictest0-21swapper/000:30:300
344935599412,3cyclictest0-21swapper/019:35:010
3449355994123,11cyclictest0-21swapper/022:40:020
3449359994032,4cyclictest0-21swapper/220:05:002
3449359994030,6cyclictest0-21swapper/220:45:322
3449359994029,9cyclictest311ktimers/219:25:122
3449359994028,9cyclictest0-21swapper/219:35:012
3449359994027,10cyclictest311ktimers/222:45:162
3449359994027,10cyclictest311ktimers/222:45:152
3449359994027,10cyclictest311ktimers/222:35:102
3449359994022,13cyclictest0-21swapper/221:20:222
3449359994022,13cyclictest0-21swapper/221:20:212
3449358994033,4cyclictest3464973-21cron20:39:591
3449358994032,4cyclictest3504501-21lsblk00:30:221
3449358994028,8cyclictest0-21swapper/123:20:291
344935899401,2cyclictest0-21swapper/121:10:011
3449355994033,5cyclictest20850irq/208-8000000.ethernet21:15:010
3449355994033,4cyclictest0-21swapper/021:25:180
3449355994030,5cyclictest3501695-21latency_hist00:15:010
344935599401,4cyclictest3481865-21munin-run22:19:590
3449359993926,6cyclictest0-21swapper/219:50:192
3449359993923,10cyclictest0-21swapper/221:10:012
3449358993931,4cyclictest0-21swapper/120:30:011
3449358993922,8cyclictest0-21swapper/123:25:291
3449355993932,4cyclictest167350irq/118-8000000.ethernet-tx019:40:270
3449355993931,5cyclictest131ktimers/023:45:250
3449359993829,5cyclictest3465833-21latency_hist20:45:012
3449359993826,8cyclictest3477535-21grep21:50:282
3449359993824,6cyclictest0-21swapper/223:00:282
3449359993820,9cyclictest0-21swapper/223:05:272
3449358993830,4cyclictest167450irq/126-8000000.ethernet-tx120:40:291
3449358993828,4cyclictest0-21swapper/119:15:011
3449358993827,8cyclictest1653-21lldpd22:55:111
3449358993826,7cyclictest0-21swapper/121:05:301
3449358993824,9cyclictest0-21swapper/119:20:271
3449355993833,3cyclictest167350irq/118-8000000.ethernet-tx020:00:170
3449355993832,4cyclictest0-21swapper/023:25:300
3449355993831,4cyclictest20850irq/208-8000000.ethernet22:15:000
3449355993831,4cyclictest167350irq/118-8000000.ethernet-tx019:57:010
3449355993831,4cyclictest167350irq/118-8000000.ethernet-tx019:57:000
3449355993831,4cyclictest0-21swapper/020:45:120
3449355993830,4cyclictest0-21swapper/021:40:190
344935599381,34cyclictest0-21swapper/023:20:120
3449359993729,6cyclictest311ktimers/222:55:122
344935999372,8cyclictest3452974-21kworker/u8:0+rpciod19:45:282
3449359993727,5cyclictest0-21swapper/221:00:272
3449359993724,8cyclictest0-21swapper/221:10:272
3449359993723,9cyclictest3496383-21grep23:40:272
3449359993721,9cyclictest311ktimers/200:25:162
3449359993720,10cyclictest0-21swapper/200:20:232
3449358993728,5cyclictest3501459-21grep00:10:271
3449358993724,9cyclictest0-21swapper/123:40:171
3449358993723,8cyclictest1660-21snmpd20:00:271
3449358993721,9cyclictest0-21swapper/122:35:281
3449358993714,19cyclictest167450irq/126-8000000.ethernet-tx100:00:021
3449355993733,2cyclictest0-21swapper/020:10:250
3449355993731,4cyclictest20850irq/208-8000000.ethernet23:20:000
3449355993731,4cyclictest20850irq/208-8000000.ethernet23:00:190
3449355993731,4cyclictest167350irq/118-8000000.ethernet-tx020:15:200
3449355993730,4cyclictest20850irq/208-8000000.ethernet19:10:190
3449355993729,6cyclictest131ktimers/023:50:220
3449355993728,5cyclictest3491264-21grep23:10:300
344935599371,33cyclictest0-21swapper/019:50:110
3449359993626,7cyclictest3498167-21cron23:55:012
3449359993623,9cyclictest0-21swapper/200:35:282
3449359993621,8cyclictest0-21swapper/223:20:192
3449358993626,5cyclictest0-21swapper/122:20:181
3449358993625,8cyclictest0-21swapper/122:44:591
3449358993625,7cyclictest0-21swapper/123:35:291
3449358993624,6cyclictest3499788-21grep00:00:301
3449358993622,10cyclictest0-21swapper/122:30:211
3449355993629,4cyclictest0-21swapper/000:02:000
3449359993525,6cyclictest0-21swapper/219:20:302
3449358993525,5cyclictest0-21swapper/100:35:201
3449358993524,7cyclictest0-21swapper/122:30:021
3449358993523,9cyclictest0-21swapper/122:05:291
3449355993529,4cyclictest0-21swapper/021:20:160
3449355993529,4cyclictest0-21swapper/021:20:150
3449355993528,4cyclictest20850irq/208-8000000.ethernet21:50:240
3449355993528,4cyclictest0-21swapper/022:45:040
3449355993528,4cyclictest0-21swapper/022:45:040
3449355993525,5cyclictest0-21swapper/019:15:210
3449359993423,7cyclictest0-21swapper/223:15:292
3449358993422,8cyclictest0-21swapper/123:45:221
344935899341,27cyclictest0-21swapper/119:45:011
3449355993430,2cyclictest0-21swapper/020:35:220
3449355993429,2cyclictest0-21swapper/020:55:260
3449355993429,2cyclictest0-21swapper/020:55:260
3449355993428,4cyclictest20850irq/208-8000000.ethernet22:30:240
3449355993428,4cyclictest20850irq/208-8000000.ethernet00:20:130
3449355993428,3cyclictest20850irq/208-8000000.ethernet22:20:150
3449355993426,4cyclictest0-21swapper/021:30:280
3449355993426,4cyclictest0-21swapper/020:30:180
3449355993426,4cyclictest0-21swapper/020:30:180
3449359993322,6cyclictest0-21swapper/220:15:172
3449359993320,7cyclictest0-21swapper/223:35:002
3449359993318,11cyclictest311ktimers/222:05:172
3449358993325,4cyclictest0-21swapper/121:30:001
3449358993321,5cyclictest0-21swapper/120:55:011
3449358993320,8cyclictest0-21swapper/119:55:011
3449355993327,4cyclictest0-21swapper/023:38:000
3449355993326,4cyclictest20850irq/208-8000000.ethernet21:45:200
3449355993325,4cyclictest0-21swapper/020:25:200
3449355993324,6cyclictest3500227-21grep00:05:210
3449355993322,7cyclictest0-21swapper/021:05:270
3449355993317,8cyclictest0-21swapper/019:25:010
344935999325,20cyclictest3451191-21grep19:15:312
344935999324,20cyclictest3502332-21unixbench_singl00:15:312
3449359993222,5cyclictest0-21swapper/223:25:262
3449358993225,4cyclictest0-21swapper/121:20:001
3449358993223,6cyclictest0-21swapper/121:20:291
3449358993223,6cyclictest0-21swapper/121:20:291
3449358993223,5cyclictest0-21swapper/120:15:021
3449358993221,8cyclictest0-21swapper/121:40:271
3449358993221,7cyclictest3466621-21grep20:45:311
3449358993221,7cyclictest0-21swapper/123:10:301
3449358993219,9cyclictest0-21swapper/121:50:271
3449355993227,3cyclictest0-21swapper/020:40:140
3449358993125,3cyclictest3481503-21kernelversion22:15:241
3449358993120,6cyclictest0-21swapper/100:15:291
3449358993119,8cyclictest0-21swapper/120:20:001
344935999305,17cyclictest3464668-21phc2sys20:35:262
3449359993022,6cyclictest3490687-21/usr/sbin/munin23:10:262
3449358993022,4cyclictest0-21swapper/123:30:261
3449358993021,4cyclictest0-21swapper/100:05:271
3449358992919,7cyclictest0-21swapper/121:30:221
3449358992919,4cyclictest0-21swapper/123:50:271
3449358992910,16cyclictest167450irq/126-8000000.ethernet-tx119:37:081
3449358992821,4cyclictest0-21swapper/119:15:041
3449358992819,5cyclictest0-21swapper/100:20:181
3449358992816,8cyclictest0-21swapper/120:30:281
3449358992816,8cyclictest0-21swapper/120:30:281
3449358992717,6cyclictest0-21swapper/121:55:211
3449358992717,4cyclictest0-21swapper/119:10:011
344935999264,16cyclictest3449407-21latency_hist19:10:012
3449355992618,5cyclictest3449489-21cat19:10:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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