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2026-04-02 - 13:34

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 Thu Apr 02, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2971080997512,16cyclictest2993752-21/usr/sbin/munin21:20:181
297107799721,58cyclictest0-21swapper/020:05:120
2971081996915,46cyclictest0-21swapper/200:35:272
297108199686,9cyclictest2979207-21/usr/sbin/munin19:55:192
2971081996422,35cyclictest0-21swapper/221:10:282
2971081996422,34cyclictest3002794-21unixbench_multi22:10:282
2971081996222,34cyclictest1660-21snmpd23:16:322
2971081996221,35cyclictest0-21swapper/220:25:202
2971081996038,17cyclictest0-21swapper/219:20:202
2971081996023,32cyclictest0-21swapper/221:45:012
297108199602,16cyclictest3010728-21apt-get23:00:152
2971081996012,40cyclictest0-21swapper/220:00:262
2971081995924,29cyclictest3018957-21munin-plugin-st23:50:002
2971081995924,29cyclictest3018957-21munin-plugin-st23:50:002
297108199592,14cyclictest2992805-21apt-get21:15:182
2971081995914,37cyclictest0-21swapper/222:55:282
297108199587,9cyclictest3016195-21cut23:30:282
297108199582,14cyclictest2996273-21apt-get21:35:152
2971081995821,33cyclictest2971871-21sshd19:14:592
2971081995716,33cyclictest0-21swapper/223:55:282
2971081995623,28cyclictest1660-21snmpd19:25:252
2971081995616,32cyclictest2982411-21unixbench_singl20:10:272
297108199557,9cyclictest0-21swapper/222:40:282
297108199557,9cyclictest0-21swapper/222:40:272
2971081995516,31cyclictest0-21swapper/223:40:212
2971081995515,33cyclictest0-21swapper/223:50:272
297108199548,8cyclictest0-21swapper/222:05:282
2971081995423,26cyclictest0-21swapper/219:30:192
2971081995418,28cyclictest2988389-21munin-plugin-st20:50:002
2971081995417,7cyclictest2990287-21/usr/sbin/munin21:00:212
2971081995417,7cyclictest2990287-21/usr/sbin/munin21:00:212
2971081995415,33cyclictest2219083-1kworker/2:2H+kblockd21:50:012
2971080995422,16cyclictest2976689-21/usr/sbin/munin19:40:181
297108199537,7cyclictest0-21swapper/200:25:262
297108199537,7cyclictest0-21swapper/200:25:262
2971081995321,25cyclictest0-21swapper/220:55:292
297108199531,13cyclictest3011566-21apt-get23:05:162
297108099531,26cyclictest0-21swapper/120:00:001
297108199528,9cyclictest0-21swapper/221:25:202
297108199515,5cyclictest2977262-21head19:40:272
2971081995124,19cyclictest2985855-21munin-plugin-st20:34:592
2971080995138,9cyclictest2993453-21sendmail21:20:001
2971077995134,12cyclictest0-21swapper/020:25:280
297107799511,6cyclictest2973763-21unixbench_multi19:20:260
2971081995041,4cyclictest2979008-21munin-plugin-st19:55:002
2971081995019,28cyclictest1660-21snmpd21:33:262
2971081995018,25cyclictest0-21swapper/221:50:282
2971081995013,3cyclictest0-21swapper/220:35:172
2971077995039,9cyclictest3017264-21munin-plugin-st23:40:000
2971077995039,9cyclictest3017264-21munin-plugin-st23:40:000
2971077995016,31cyclictest0-21swapper/021:20:220
297108199496,6cyclictest0-21swapper/200:20:272
297108199493,9cyclictest3026674-21unixbench_singl00:30:302
297108199492,10cyclictest3012934-21grep23:10:272
2971081994913,3cyclictest0-21swapper/223:30:012
2971081994910,5cyclictest0-21swapper/222:45:212
297108199489,7cyclictest0-21swapper/222:35:162
297108199488,7cyclictest0-21swapper/200:05:272
297108199484,11cyclictest0-21swapper/220:10:012
297108199483,12cyclictest2991737-21sed21:05:272
2971081994817,24cyclictest0-21swapper/222:05:002
2971081994817,24cyclictest0-21swapper/222:05:002
2971081994811,5cyclictest0-21swapper/219:45:212
2971081994811,5cyclictest0-21swapper/219:45:202
297108199481,13cyclictest3009028-21/usr/sbin/munin22:50:272
2971077994841,4cyclictest167350irq/118-8000000.ethernet-tx021:00:240
2971077994841,4cyclictest167350irq/118-8000000.ethernet-tx021:00:240
2971077994840,4cyclictest167350irq/118-8000000.ethernet-tx023:45:220
2971077994840,4cyclictest167350irq/118-8000000.ethernet-tx023:45:220
297108199477,6cyclictest0-21swapper/200:10:252
297108199474,7cyclictest2983233-21grep20:15:282
2971081994719,24cyclictest311ktimers/222:25:272
2971081994718,22cyclictest47-21kauditd20:25:012
2971081994718,22cyclictest47-21kauditd20:25:002
2971081994712,27cyclictest0-21swapper/219:10:022
2971080994738,5cyclictest2996817-21grep21:35:281
2971080994737,7cyclictest3003763-21sendmail22:20:011
2971080994733,8cyclictest0-21swapper/100:00:001
2971077994739,4cyclictest167350irq/118-8000000.ethernet-tx022:30:250
2971077994715,29cyclictest3023738-21ssh00:15:210
297108199465,9cyclictest0-21swapper/200:00:202
2971081994614,28cyclictest0-21swapper/222:15:292
2971081994611,3cyclictest0-21swapper/222:30:262
2971077994639,4cyclictest20650irq/252-8000000.ethernet20:55:240
2971077994639,4cyclictest167350irq/118-8000000.ethernet-tx023:10:100
2971077994636,5cyclictest0-21swapper/021:50:000
297107799463,4cyclictest2972871-21mailstats19:15:260
297107799461,43cyclictest0-21swapper/020:50:110
2971081994512,3cyclictest0-21swapper/223:35:232
2971081994512,3cyclictest0-21swapper/223:35:232
2971080994533,8cyclictest3007036-21grep22:35:281
2971080994533,8cyclictest0-21swapper/122:55:261
297108199443,10cyclictest3014661-21grep23:20:272
2971081994423,18cyclictest0-21swapper/221:55:172
2971081994415,5cyclictest311ktimers/220:40:192
297108199441,38cyclictest0-21swapper/200:19:372
2971080994436,4cyclictest0-21swapper/122:30:001
2971077994440,3cyclictest0-21swapper/019:35:090
2971077994437,4cyclictest167350irq/118-8000000.ethernet-tx022:20:230
2971077994436,5cyclictest0-21swapper/021:20:010
2971077994433,8cyclictest0-21swapper/019:35:010
297107799441,4cyclictest0-21swapper/023:05:120
297107799441,30cyclictest0-21swapper/000:30:010
297107799441,30cyclictest0-21swapper/000:30:010
297108199437,5cyclictest0-21swapper/219:20:012
2971080994332,8cyclictest2973865-21munin-plugin-st19:25:011
2971077994335,4cyclictest3016456-21sed23:35:010
2971077994324,17cyclictest0-21swapper/021:35:270
297107799431,38cyclictest2978953-21sed19:50:300
2971080994228,9cyclictest0-21swapper/121:25:271
2971077994229,9cyclictest0-21swapper/019:50:010
2971077994229,9cyclictest0-21swapper/019:50:010
297107799422,5cyclictest3022762-21df00:10:130
297107799422,4cyclictest2982975-21meminfo20:15:240
297107799421,5cyclictest2999513-21users21:50:290
297107799421,4cyclictest3026879-21latency_hist00:35:010
297108199414,10cyclictest0-21swapper/221:20:262
2971081994115,6cyclictest311ktimers/219:35:192
2971080994127,11cyclictest0-21swapper/123:15:291
2971077994134,4cyclictest0-21swapper/020:10:230
2971077994129,9cyclictest0-21swapper/023:20:000
2971077994128,9cyclictest0-21swapper/000:35:260
2971077994127,10cyclictest0-21swapper/023:00:270
2971081994016,21cyclictest311ktimers/220:50:262
2971080994023,8cyclictest0-21swapper/120:45:271
2971080994011,16cyclictest2980906-21/usr/sbin/munin20:05:201
2971077994030,7cyclictest0-21swapper/019:55:290
2971077994027,9cyclictest0-21swapper/019:10:290
2971077994024,14cyclictest0-21swapper/023:40:140
297107799401,5cyclictest2986978-21df_inode20:40:170
297107799401,37cyclictest0-21swapper/022:45:020
297107799401,37cyclictest0-21swapper/022:45:020
297107799401,37cyclictest0-21swapper/022:25:260
297107799401,37cyclictest0-21swapper/019:25:160
297107799401,36cyclictest3009729-21latency_hist22:55:010
2971080993933,4cyclictest3019886-21munin-plugin-st23:55:001
2971080993927,9cyclictest0-21swapper/121:55:281
2971080993925,9cyclictest0-21swapper/119:35:241
2971080993925,8cyclictest0-21swapper/100:00:281
2971080993925,10cyclictest0-21swapper/119:30:261
297108099391,3cyclictest0-21swapper/122:25:011
2971077993932,4cyclictest3003758-21sendmail22:20:000
2971077993932,4cyclictest20850irq/208-8000000.ethernet23:00:000
2971077993927,8cyclictest0-21swapper/023:50:290
297107799391,4cyclictest3008592-21ptp4l22:45:260
297107799391,4cyclictest2999736-21apt21:55:110
297108099385,5cyclictest0-21swapper/123:50:011
297108099385,5cyclictest0-21swapper/123:50:011
2971080993827,8cyclictest0-21swapper/120:20:291
2971080993827,8cyclictest0-21swapper/120:20:291
2971077993832,3cyclictest0-21swapper/020:00:160
2971077993831,4cyclictest20850irq/208-8000000.ethernet23:55:280
2971077993831,4cyclictest0-21swapper/000:00:040
2971077993830,4cyclictest0-21swapper/020:20:290
2971077993830,4cyclictest0-21swapper/020:20:290
297107799381,3cyclictest3024598-21ssh00:20:190
297108099372,8cyclictest0-21swapper/100:30:011
297108099372,8cyclictest0-21swapper/100:30:011
2971077993730,4cyclictest0-21swapper/022:04:540
2971077993730,4cyclictest0-21swapper/022:04:540
2971077993729,4cyclictest2995132-21grep21:25:280
297107799371,4cyclictest0-21swapper/023:25:160
297107799371,3cyclictest0-21swapper/022:06:510
297107799371,34cyclictest0-21swapper/023:20:240
297107799371,34cyclictest0-21swapper/000:05:200
2971080993627,5cyclictest0-21swapper/121:00:281
2971080993627,5cyclictest0-21swapper/121:00:281
2971080993626,7cyclictest0-21swapper/120:30:281
2971080993625,9cyclictest1653-21lldpd22:05:011
2971080993625,9cyclictest1653-21lldpd22:05:001
2971080993625,8cyclictest0-21swapper/120:00:291
297108099362,29cyclictest2972363-21/usr/sbin/munin19:15:091
297108099361,28cyclictest2995969-21unixbench_multi21:30:291
2971077993629,4cyclictest20850irq/208-8000000.ethernet20:35:180
2971077993622,9cyclictest0-21swapper/021:10:280
297107799361,4cyclictest0-21swapper/022:35:250
297107799361,4cyclictest0-21swapper/019:40:020
297107799361,33cyclictest0-21swapper/021:30:150
297107799361,33cyclictest0-21swapper/021:05:230
297107799361,33cyclictest0-21swapper/020:33:540
2971081993513,3cyclictest3004610-21latency_hist22:25:012
2971080993528,5cyclictest0-21swapper/123:00:151
2971080993525,6cyclictest3012101-21grep23:05:291
2971080993523,8cyclictest0-21swapper/119:25:261
2971080993522,6cyclictest0-21swapper/119:10:201
297108099351,3cyclictest0-21swapper/122:35:021
2971080993510,16cyclictest167450irq/126-8000000.ethernet-tx123:35:111
2971080993510,16cyclictest167450irq/126-8000000.ethernet-tx123:35:111
2971077993529,4cyclictest20850irq/208-8000000.ethernet22:15:000
297107799351,32cyclictest0-21swapper/020:49:300
2971080993424,6cyclictest3014905-21cat23:25:011
2971080993423,8cyclictest0-21swapper/100:15:291
2971080993423,7cyclictest0-21swapper/119:50:261
2971080993418,8cyclictest0-21swapper/123:30:211
2971077993428,4cyclictest20850irq/208-8000000.ethernet21:40:230
2971080993325,6cyclictest2999489-21unixbench_singl21:50:281
2971080993223,6cyclictest3012401-21/usr/sbin/munin23:10:271
2971080993223,6cyclictest0-21swapper/120:50:271
2971080993221,7cyclictest0-21swapper/120:15:281
2971080993220,6cyclictest1660-21snmpd20:10:561
2971080993124,3cyclictest0-21swapper/100:10:231
2971080993123,4cyclictest0-21swapper/120:35:191
2971080993117,10cyclictest0-21swapper/120:55:291
2971080993022,4cyclictest0-21swapper/120:25:271
2971080993019,6cyclictest3024929-21grep00:20:271
2971080993018,9cyclictest0-21swapper/121:40:201
297108099301,4cyclictest0-21swapper/100:30:171
297107799301,24cyclictest0-21swapper/019:10:020
2971080992920,5cyclictest0-21swapper/122:40:261
2971080992920,5cyclictest0-21swapper/122:40:261
2971080992920,4cyclictest0-21swapper/120:45:001
2971080992919,6cyclictest0-21swapper/121:05:281
2971080992918,8cyclictest0-21swapper/121:50:011
2971080992918,8cyclictest0-21swapper/121:10:261
2971080992916,9cyclictest0-21swapper/123:40:251
2971080992820,4cyclictest0-21swapper/122:50:221
2971080992722,4cyclictest0-21swapper/122:49:251
2971080992719,5cyclictest0-21swapper/100:35:201
2971080992718,6cyclictest0-21swapper/123:25:271
2971080992617,6cyclictest3022447-21grep00:05:271
2971080992617,5cyclictest0-21swapper/119:45:181
2971080992617,5cyclictest0-21swapper/119:45:171
2971080992516,7cyclictest231ktimers/122:10:161
2971080992417,5cyclictest231ktimers/122:05:261
2971080992012,5cyclictest231ktimers/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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