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2026-06-09 - 02:19

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 Mon Jun 08, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38900499910094,4cyclictest391ktimers/309:00:013
3890047998910,6cyclictest3937935-21apt-get11:50:012
3890043998579,3cyclictest0-21swapper/012:40:010
389004699771,38cyclictest3903995-21cmp08:30:011
389004699771,38cyclictest3903995-21cmp08:30:001
3890043997426,43cyclictest0-21swapper/010:55:200
3890043997315,7cyclictest3904065-21rm08:30:010
3890043997315,7cyclictest3904065-21rm08:30:010
389004399679,21cyclictest3900427-21apt-get08:10:000
3890046996613,29cyclictest0-21swapper/108:40:001
3890047996524,29cyclictest0-21swapper/209:05:002
3890047996523,36cyclictest0-21swapper/208:00:012
3890047996447,12cyclictest3900353-21grep08:05:302
3890046996411,13cyclictest0-21swapper/109:40:021
3890046996410,14cyclictest0-21swapper/109:50:011
3890047996218,38cyclictest0-21swapper/211:05:292
3890047996217,39cyclictest3895360-21sendmail07:40:002
389004699621,19cyclictest0-21swapper/109:25:021
389004399622,45cyclictest20850irq/208-8000000.ethernet07:45:180
389004399622,45cyclictest20850irq/208-8000000.ethernet07:45:180
3890043996026,23cyclictest15-21rcuc/012:10:010
3890047995926,27cyclictest0-21swapper/209:35:282
3890047995922,30cyclictest0-21swapper/212:15:292
389004799592,16cyclictest3919164-21grep09:55:292
389004699593,28cyclictest0-21swapper/108:10:021
3890047995826,28cyclictest0-21swapper/209:10:272
3890047995820,28cyclictest0-21swapper/212:00:182
3890046995835,15cyclictest3897256-21apt-get07:50:141
389004699583,38cyclictest0-21swapper/107:35:021
389004799573,13cyclictest3926772-21tail10:40:282
3890047995720,29cyclictest0-21swapper/212:05:292
3890047995719,30cyclictest0-21swapper/209:40:272
389004699573,22cyclictest0-21swapper/111:45:201
3890046995716,16cyclictest3918334-21apt-get09:55:021
3890047995628,23cyclictest0-21swapper/211:20:292
3890047995627,24cyclictest0-21swapper/208:55:282
3890047995621,28cyclictest0-21swapper/210:15:292
3890047995620,32cyclictest0-21swapper/208:30:002
3890047995620,32cyclictest0-21swapper/208:30:002
3890047995613,8cyclictest0-21swapper/211:10:262
389004799552,6cyclictest3929386-21sed10:55:302
3890047995518,3cyclictest0-21swapper/211:15:262
3890047995517,8cyclictest1660-21snmpd08:17:432
389004799551,10cyclictest3920901-21unixbench_singl10:05:292
3890046995534,13cyclictest0-21swapper/108:40:141
3890047995424,23cyclictest3934494-21grep11:25:262
3890047995424,23cyclictest3934494-21grep11:25:252
3890047995416,5cyclictest0-21swapper/209:05:272
3890047995416,5cyclictest0-21swapper/209:05:272
389004799541,46cyclictest3902935-21find08:20:282
389004699547,19cyclictest0-21swapper/110:40:011
389004799534,5cyclictest3942179-21grep12:10:282
389004799534,5cyclictest3942179-21grep12:10:282
3890047995317,29cyclictest0-21swapper/210:30:262
3890047995311,7cyclictest0-21swapper/208:40:162
3890046995332,18cyclictest3942441-21/usr/sbin/munin12:15:191
389004699532,14cyclictest0-21swapper/110:30:011
3890047995230,17cyclictest4016274-1kworker/2:2H+kblockd08:10:112
3890047995229,10cyclictest14-21rcu_preempt10:55:012
3890047995224,23cyclictest3939604-21grep11:55:292
3890047995223,23cyclictest0-21swapper/212:20:232
3890046995237,10cyclictest3895651-21diskstats07:40:201
3890046995235,11cyclictest3924543-21apt-get10:30:161
389004699522,9cyclictest0-21swapper/112:30:011
389004799513,12cyclictest1660-21snmpd07:30:292
389004799512,10cyclictest3924246-21tail10:25:282
389004799503,10cyclictest3930247-21tail11:00:312
3890047995015,4cyclictest0-21swapper/207:15:202
3890047995014,8cyclictest3913176-21grep09:20:282
389004699506,16cyclictest0-21swapper/109:00:021
3890046995035,8cyclictest3922003-21apt-get10:15:151
389004699502,16cyclictest0-21swapper/111:30:021
389004699502,16cyclictest0-21swapper/111:30:011
3890047994921,6cyclictest3927076-21/usr/sbin/munin10:45:252
3890047994918,27cyclictest0-21swapper/209:30:182
3890046994930,8cyclictest3896717-21/usr/sbin/munin07:45:231
3890046994930,8cyclictest3896717-21/usr/sbin/munin07:45:221
3890046994928,12cyclictest3916528-21/usr/sbin/munin09:40:271
3890046994928,10cyclictest0-21swapper/107:15:111
3890046994917,3cyclictest3944986-21apt-get12:30:161
389004799484,6cyclictest3907260-21grep08:45:282
389004799483,10cyclictest3946456-21cron12:40:002
389004799483,10cyclictest3936992-21tail11:40:332
3890047994816,27cyclictest0-21swapper/207:45:182
3890047994816,27cyclictest0-21swapper/207:45:182
3890047994814,8cyclictest0-21swapper/209:50:252
3890046994836,9cyclictest3939712-21sendmail12:00:001
3890046994836,4cyclictest3920323-21apt-get10:05:141
3890046994834,10cyclictest3919268-21sendmail10:00:001
3890043994837,5cyclictest3891511-21grep07:15:200
3890047994715,7cyclictest0-21swapper/210:05:012
3890047994711,6cyclictest3908145-21unixbench_singl08:50:302
3890046994731,11cyclictest3937935-21apt-get11:50:051
3890046994731,10cyclictest0-21swapper/112:10:131
3890046994731,10cyclictest0-21swapper/112:10:131
3890046994727,12cyclictest3927990-21/usr/sbin/munin10:50:181
3890046994726,13cyclictest3890768-21grep07:10:291
3890046994725,12cyclictest0-21swapper/109:00:131
3890046994721,18cyclictest3900113-21/usr/sbin/munin08:05:271
389004799469,7cyclictest3936153-21unixbench_multi11:35:292
3890047994615,6cyclictest0-21swapper/207:45:002
3890047994610,6cyclictest0-21swapper/210:40:002
3890046994629,11cyclictest0-21swapper/109:05:141
3890046994629,11cyclictest0-21swapper/109:05:141
3890046994628,11cyclictest0-21swapper/108:20:141
3890046994626,11cyclictest3907735-21cut08:50:221
389004399461,43cyclictest0-21swapper/011:55:210
389004799453,13cyclictest3944673-21sed12:25:302
3890047994523,19cyclictest3922860-21/usr/sbin/munin10:20:212
3890047994523,19cyclictest3922860-21/usr/sbin/munin10:20:212
389004799451,3cyclictest0-21swapper/211:50:212
3890046994529,11cyclictest0-21swapper/111:10:111
3890046994527,12cyclictest0-21swapper/111:15:111
3890046994527,11cyclictest3930159-21/usr/sbin/munin11:00:301
3890046994526,12cyclictest3914727-21/usr/sbin/munin09:30:261
3890046994516,20cyclictest3940455-21grep12:00:281
389004799444,8cyclictest3921704-21tail10:10:282
389004799442,4cyclictest3893038-21apt07:25:132
3890047994421,20cyclictest0-21swapper/209:25:252
389004699449,29cyclictest0-21swapper/109:15:241
3890046994431,10cyclictest3926237-21/usr/sbin/munin10:40:101
3890046994430,8cyclictest3906728-21apt-get08:45:151
3890046994428,10cyclictest3902077-21/usr/sbin/munin08:15:281
3890047994320,6cyclictest3897253-21/usr/sbin/munin07:50:222
3890046994336,3cyclictest3927079-21apt-get10:45:121
3890046994331,7cyclictest3941325-21/usr/sbin/munin12:05:301
3890046994331,7cyclictest3921472-21/usr/sbin/munin10:10:251
3890046994331,4cyclictest3934764-21apt-get11:30:141
3890046994330,7cyclictest3904636-21/usr/sbin/munin08:30:261
3890046994329,7cyclictest3898302-21/usr/sbin/munin07:55:221
3890046994327,8cyclictest3919484-21apt-get10:00:131
3890046994326,11cyclictest3893104-21/usr/sbin/munin07:25:191
3890046994321,15cyclictest1660-21snmpd11:35:281
3890043994336,4cyclictest167350irq/118-8000000.ethernet-tx008:40:200
3890043994332,8cyclictest0-21swapper/009:10:010
3890043994332,8cyclictest0-21swapper/009:10:010
3890043994330,6cyclictest20850irq/208-8000000.ethernet11:20:010
3890043994328,10cyclictest0-21swapper/010:10:270
389004399432,4cyclictest3895232-21find07:35:280
389004799429,14cyclictest3905663-21cron08:40:002
3890046994234,3cyclictest3911243-21meminfo09:10:241
3890046994230,6cyclictest3943302-21/usr/sbin/munin12:20:311
3890046994227,9cyclictest0-21swapper/111:40:131
389004699421,32cyclictest0-21swapper/107:25:011
3890046994213,18cyclictest3899052-21fschecks_count08:00:181
3890043994235,4cyclictest167350irq/118-8000000.ethernet-tx008:45:230
3890043994232,7cyclictest3944749-21unixbench_singl12:25:290
3890043994231,7cyclictest15-21rcuc/011:35:130
3890043994229,8cyclictest0-21swapper/008:30:210
389004399422,5cyclictest3914745-21/usr/sbin/munin09:30:250
3890047994123,8cyclictest0-21swapper/209:45:272
3890046994133,4cyclictest3922863-21apt-get10:20:151
3890046994133,4cyclictest3922863-21apt-get10:20:151
3890046994122,10cyclictest3933082-21munin-node11:20:121
3890043994130,7cyclictest3926808-21grep10:40:290
3890043994128,10cyclictest0-21swapper/012:30:290
3890047994028,6cyclictest0-21swapper/211:30:282
3890046994032,4cyclictest3928848-21apt-get10:55:161
3890046994031,7cyclictest3894934-21/usr/sbin/munin07:35:221
3890046994027,8cyclictest0-21swapper/109:20:101
3890043994019,18cyclictest0-21swapper/007:25:010
389004399401,37cyclictest0-21swapper/012:10:170
389004399401,37cyclictest0-21swapper/012:10:170
389004399398,28cyclictest3898499-21awk07:55:270
3890043993930,6cyclictest3924298-21grep10:25:280
389004399392,5cyclictest3899545-21grep08:00:280
389004399391,26cyclictest3918322-21kworker/u8:2+events_power_efficient09:55:020
3890046993832,3cyclictest3930723-21/usr/sbin/munin11:05:221
3890046993822,12cyclictest3945933-21/usr/sbin/munin12:35:191
3890043993832,3cyclictest3943088-21sh12:20:000
3890043993830,4cyclictest167350irq/118-8000000.ethernet-tx008:20:010
3890043993830,4cyclictest0-21swapper/011:10:000
3890043993829,5cyclictest0-21swapper/009:20:280
389004399381,2cyclictest0-21swapper/010:00:020
3890043993731,4cyclictest0-21swapper/008:20:130
3890043993730,4cyclictest0-21swapper/011:50:050
3890043993729,5cyclictest3914021-21unixbench_multi09:25:270
3890043993728,6cyclictest0-21swapper/009:00:270
3890043993726,8cyclictest3893607-21grep07:25:290
389004399371,5cyclictest15-21rcuc/010:05:010
389004399371,34cyclictest0-21swapper/010:15:150
389004399371,33cyclictest3901258-21sed08:10:270
3890043993712,23cyclictest0-21swapper/011:20:300
3890047993624,8cyclictest0-21swapper/207:20:212
3890046993617,12cyclictest0-21swapper/107:10:011
3890046993617,12cyclictest0-21swapper/107:10:011
389004399364,28cyclictest0-21swapper/008:35:250
3890043993629,4cyclictest19750irq/27-20000000.i2c08:55:200
3890043993629,4cyclictest167350irq/118-8000000.ethernet-tx011:40:260
3890043993627,6cyclictest3930246-21grep11:00:300
389004399361,4cyclictest0-21swapper/008:54:370
389004399361,33cyclictest0-21swapper/010:30:250
389004399361,33cyclictest0-21swapper/009:35:120
389004399361,33cyclictest0-21swapper/009:15:150
3890043993610,24cyclictest0-21swapper/007:30:280
389004399359,2cyclictest0-21swapper/010:20:150
389004399359,2cyclictest0-21swapper/010:20:140
3890043993529,4cyclictest20850irq/208-8000000.ethernet09:10:290
3890043993529,4cyclictest20850irq/208-8000000.ethernet07:50:160
3890043993529,4cyclictest20850irq/208-8000000.ethernet07:10:230
3890043993429,2cyclictest0-21swapper/010:45:290
3890043993428,4cyclictest20850irq/208-8000000.ethernet12:20:180
3890043993424,6cyclictest0-21swapper/011:10:250
389004399341,31cyclictest0-21swapper/010:06:520
3890043993327,4cyclictest20850irq/208-8000000.ethernet12:00:150
3890043993325,6cyclictest131ktimers/009:45:240
3890043993226,4cyclictest20850irq/208-8000000.ethernet10:50:180
389004399322,4cyclictest3916091-21diskstats09:40:160
3890043993223,5cyclictest3937857-21tail11:45:290
3890043993220,8cyclictest0-21swapper/011:30:270
389004399321,25cyclictest0-21swapper/007:45:010
3890043993126,3cyclictest20850irq/208-8000000.ethernet10:35:230
3890047993021,5cyclictest0-21swapper/212:30:292
3890047993021,4cyclictest0-21swapper/207:10:012
3890047993021,4cyclictest0-21swapper/207:10:012
3890043993025,3cyclictest3934259-21grep11:25:240
3890043993025,3cyclictest3934259-21grep11:25:240
3890047992920,6cyclictest0-21swapper/209:15:292
3890047992820,6cyclictest311ktimers/208:00:232
3890047992819,5cyclictest3890734-21grep07:10:302
3890047992719,6cyclictest311ktimers/208:30:142
389004399271,9cyclictest0-21swapper/007:10:010
389004399271,9cyclictest0-21swapper/007:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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