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2026-04-17 - 02:05

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 Thu Apr 16, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322618199912,79cyclictest3245301-21/usr/sbin/munin09:00:163
3226178998543,36cyclictest3234024-21munin-plugin-st07:55:001
3226176998036,35cyclictest3253534-21grep09:45:280
3226180997827,46cyclictest0-21swapper/212:15:252
3226176997645,25cyclictest20650irq/252-8000000.ethernet10:05:300
3226176997645,25cyclictest20650irq/252-8000000.ethernet10:05:300
3226176997640,31cyclictest20650irq/252-8000000.ethernet09:05:200
3226180997338,31cyclictest0-21swapper/210:00:002
3226178997329,38cyclictest0-21swapper/109:10:191
3226178997232,36cyclictest3259440-21grep10:20:271
3226178997231,35cyclictest0-21swapper/108:20:291
3226176997229,39cyclictest20850irq/208-8000000.ethernet07:10:270
322617699721,64cyclictest3235545-21mailstats08:00:270
3226180997128,34cyclictest0-21swapper/208:35:292
322617899717,18cyclictest3265403-21grep10:55:301
3226176997041,23cyclictest20650irq/252-8000000.ethernet11:20:010
3226178996825,33cyclictest0-21swapper/108:50:011
3226176996836,29cyclictest3249312-21grep09:20:280
3226178996736,27cyclictest3266298-21munin-plugin-st11:05:001
3226180996627,32cyclictest0-21swapper/209:05:282
3226178996633,24cyclictest3233150-21grep07:45:281
3226176996639,23cyclictest20650irq/252-8000000.ethernet10:15:010
3226176996634,29cyclictest167350irq/118-8000000.ethernet-tx011:55:240
3226176996623,39cyclictest3262830-21grep10:40:280
322618099651,4cyclictest3268816-21apt-get11:20:022
3226178996522,35cyclictest0-21swapper/110:10:281
3226178996519,7cyclictest0-21swapper/111:05:221
3226180996427,29cyclictest0-21swapper/209:15:282
322617899645,11cyclictest3256063-21grep10:00:271
322617899643,13cyclictest3230419-21ptp4l07:30:261
3226178996425,6cyclictest3234807-21grep07:55:291
3226178996416,6cyclictest0-21swapper/108:50:291
3226176996437,24cyclictest0-21swapper/011:40:220
3226176996437,24cyclictest0-21swapper/011:40:210
3226180996327,32cyclictest0-21swapper/210:50:242
322617899635,14cyclictest3268711-21grep11:15:281
3226178996318,8cyclictest0-21swapper/111:50:281
3226178996310,18cyclictest3271376-21head11:30:291
3226176996339,21cyclictest20650irq/252-8000000.ethernet07:40:000
3226176996334,24cyclictest0-21swapper/008:50:010
322617699631,18cyclictest3282375-21grep12:35:290
3226180996226,29cyclictest0-21swapper/209:30:272
3226178996229,27cyclictest0-21swapper/111:55:281
3226178996226,30cyclictest0-21swapper/109:00:191
3226178996224,33cyclictest0-21swapper/110:40:251
3226178996217,10cyclictest0-21swapper/109:35:291
3226176996236,23cyclictest0-21swapper/009:55:280
3226180996121,35cyclictest0-21swapper/212:05:282
322617899613,14cyclictest3237484-21latency_hist08:15:001
322617899612,17cyclictest3227139-21latency_hist07:15:011
3226178996119,34cyclictest0-21swapper/109:25:271
3226178996119,34cyclictest0-21swapper/109:25:271
3226180996032,23cyclictest0-21swapper/210:55:282
322617899604,16cyclictest3279828-21sed12:20:291
322617899604,16cyclictest3279828-21sed12:20:291
322617899604,15cyclictest3256936-21head10:05:311
322617899604,15cyclictest3256936-21head10:05:301
3226176996032,24cyclictest3277723-21ssh12:10:190
3226176996022,34cyclictest0-21swapper/007:15:290
3226180995932,21cyclictest0-21swapper/208:05:302
3226180995932,21cyclictest0-21swapper/208:05:302
322617899595,14cyclictest3229704-21grep07:25:271
322617899595,14cyclictest3229704-21grep07:25:271
3226178995923,4cyclictest0-21swapper/109:15:281
3226178995918,7cyclictest3282360-21grep12:35:291
3226176995936,20cyclictest0-21swapper/012:29:590
3226176995926,30cyclictest3250173-21grep09:25:270
3226176995926,30cyclictest3250173-21grep09:25:270
3226176995925,32cyclictest0-21swapper/011:35:010
3226176995916,3cyclictest3228911-21grep07:20:260
3226180995820,32cyclictest0-21swapper/208:25:282
3226180995820,31cyclictest0-21swapper/207:15:282
322617899584,17cyclictest3232300-21grep07:40:271
322617899583,12cyclictest3267943-21unixbench_singl11:10:291
322617899583,12cyclictest3231446-21head07:35:301
3226178995817,9cyclictest0-21swapper/112:25:251
3226178995813,6cyclictest0-21swapper/109:45:191
322617699584,9cyclictest3267757-21ptp4l11:10:270
3226176995830,25cyclictest0-21swapper/008:30:280
3226176995822,29cyclictest0-21swapper/012:05:200
322617699582,11cyclictest3273507-21fschecks_time11:45:210
3226180995719,31cyclictest0-21swapper/210:30:222
3226180995719,31cyclictest0-21swapper/207:10:272
322617899575,14cyclictest3276425-21grep12:00:281
3226178995748,5cyclictest3239938-21munin-plugin-st08:30:001
322617899573,22cyclictest3277694-21cut12:10:191
322617899573,16cyclictest3246735-21grep09:05:291
3226178995724,7cyclictest3245044-21grep08:55:281
3226178995724,27cyclictest0-21swapper/109:55:201
322617899572,11cyclictest3261107-21grep10:30:291
3226178995720,5cyclictest3235197-21cut08:00:191
3226176995737,16cyclictest3250561-21fschecks_count09:30:180
322617699573,13cyclictest3252756-21grep09:40:280
3226176995730,25cyclictest167350irq/118-8000000.ethernet-tx008:05:220
3226176995730,25cyclictest167350irq/118-8000000.ethernet-tx008:05:210
3226176995729,24cyclictest3238612-21fschecks_time08:20:200
3226176995727,26cyclictest20850irq/208-8000000.ethernet09:15:020
322617699572,16cyclictest3256103-21grep10:00:270
322617699572,14cyclictest3234561-21cut07:55:260
3226176995720,33cyclictest0-21swapper/012:30:280
322617699571,2cyclictest0-21swapper/008:10:200
322618099562,47cyclictest3247508-21grep09:10:282
322618099561,48cyclictest0-21swapper/211:20:252
322617899567,12cyclictest3241523-21grep08:35:291
322617899566,10cyclictest0-21swapper/110:20:011
322617899565,14cyclictest3264543-21grep10:50:291
322617899564,14cyclictest3250592-21fschecks_time09:30:191
3226178995620,30cyclictest0-21swapper/107:20:021
3226178995619,4cyclictest3254466-21munin-plugin-st09:55:001
322617699564,11cyclictest3230610-21grep07:30:280
322618099556,27cyclictest3242676-21/usr/sbin/munin08:45:192
3226180995522,28cyclictest0-21swapper/210:40:212
3226180995520,29cyclictest0-21swapper/210:05:002
322617899554,15cyclictest3237768-21cut08:15:211
322617899553,16cyclictest3273893-21unixbench_multi11:45:291
3226178995525,25cyclictest0-21swapper/111:35:181
3226178995518,30cyclictest0-21swapper/110:25:191
3226178995511,11cyclictest3281457-21unixbench_multi12:30:281
322617699552,49cyclictest3276225-21cut12:00:260
3226176995524,26cyclictest0-21swapper/007:50:280
322617699552,13cyclictest3233116-21grep07:45:270
3226176995521,30cyclictest0-21swapper/011:50:200
3226176995521,29cyclictest3248471-21grep09:15:280
3226176995516,32cyclictest0-21swapper/007:45:010
322618099544,42cyclictest3271782-21fschecks_time11:35:212
322618099543,42cyclictest0-21swapper/211:10:222
322618099541,45cyclictest3249290-21/usr/sbin/munin09:20:272
322618099541,29cyclictest3237904-21memory08:15:252
322617899545,13cyclictest3276878-21sh12:05:201
322617899545,10cyclictest3240727-21grep08:30:291
322617899544,13cyclictest3263691-21grep10:45:301
322617899544,13cyclictest3263691-21grep10:45:291
322617899543,17cyclictest3236465-21unixbench_multi08:05:291
322617899543,17cyclictest3236465-21unixbench_multi08:05:291
3226178995421,23cyclictest0-21swapper/108:40:211
3226176995440,10cyclictest167350irq/118-8000000.ethernet-tx011:00:180
3226176995434,16cyclictest3272007-21proc_pri11:35:280
322617699543,16cyclictest3264164-21/usr/sbin/munin10:50:230
3226176995431,20cyclictest0-21swapper/010:45:210
3226176995431,20cyclictest0-21swapper/010:45:210
3226176995428,22cyclictest3251430-21grep09:35:210
3226176995428,22cyclictest3244676-21if_eth008:55:210
3226176995422,28cyclictest0-21swapper/010:40:000
3226176995411,39cyclictest0-21swapper/010:35:010
322618099534,41cyclictest0-21swapper/210:50:012
322618099534,41cyclictest0-21swapper/210:50:012
322618099534,40cyclictest0-21swapper/211:45:272
3226180995325,21cyclictest0-21swapper/212:29:592
322618099532,43cyclictest3276146-21/usr/sbin/munin12:00:252
322618099532,43cyclictest3257378-21cut10:10:202
322618099532,43cyclictest3229369-21/usr/sbin/munin07:25:202
322618099532,43cyclictest3229369-21/usr/sbin/munin07:25:202
3226180995320,28cyclictest0-21swapper/208:40:192
3226180995313,32cyclictest3279299-21cpu12:20:162
3226180995313,32cyclictest3279299-21cpu12:20:162
322617899536,16cyclictest3248897-21sh09:20:191
322617899533,14cyclictest3270517-21grep11:25:291
322617899531,31cyclictest0-21swapper/110:35:191
322617899531,29cyclictest0-21swapper/112:15:201
322617699534,11cyclictest3260177-21cut10:25:260
322617699533,16cyclictest3229718-21grep07:25:270
322617699533,16cyclictest3229718-21grep07:25:260
322617699533,15cyclictest3254427-21unixbench_singl09:50:260
322617699532,7cyclictest3242409-21grep08:40:280
3226176995320,30cyclictest0-21swapper/010:15:270
322618099525,37cyclictest0-21swapper/207:40:172
3226180995240,8cyclictest3234866-21sendmail08:00:012
322618099523,41cyclictest3240141-21apt-get08:30:162
322618099522,41cyclictest3277602-21/usr/sbin/munin12:10:142
3226180995223,22cyclictest0-21swapper/209:40:282
3226180995219,29cyclictest3271341-21grep11:30:282
322618099521,45cyclictest0-21swapper/209:00:142
322618099521,45cyclictest0-21swapper/208:55:222
3226180995214,30cyclictest0-21swapper/210:25:202
322618099521,41cyclictest3281476-21sed12:30:282
322617899525,14cyclictest3273058-21sed11:40:291
322617899525,14cyclictest3273058-21sed11:40:291
322617899523,10cyclictest3269270-21sh11:20:211
3226178995215,9cyclictest0-21swapper/107:25:011
322617699524,10cyclictest3259436-21grep10:20:270
3226176995230,18cyclictest0-21swapper/011:20:270
322617699522,12cyclictest3245430-21cut09:00:170
3226176995219,29cyclictest0-21swapper/011:05:290
3226176995215,32cyclictest0-21swapper/008:35:210
322618099513,42cyclictest3233118-21head07:45:272
322618099513,40cyclictest3270113-21fschecks_time11:25:212
322618099512,42cyclictest3282070-21sshd12:35:252
322618099512,40cyclictest3274722-21grep11:50:282
322618099512,40cyclictest3253570-21grep09:45:282
322618099512,40cyclictest3238461-21/usr/sbin/munin08:20:232
3226180995123,21cyclictest0-21swapper/210:05:302
3226180995123,21cyclictest0-21swapper/210:05:302
3226180995116,29cyclictest0-21swapper/211:00:292
322617899515,10cyclictest3252578-21ptp4l-jitter09:40:271
322617699511,8cyclictest3278584-21fschecks_time12:15:200
322618099508,35cyclictest167550irq/134-8000000.ethernet-tx209:35:252
322618099502,42cyclictest3228865-21grep07:20:272
322618099502,40cyclictest3249610-21/usr/sbin/munin09:25:222
322618099502,40cyclictest3249610-21/usr/sbin/munin09:25:222
3226180995019,23cyclictest0-21swapper/211:05:292
322617699503,15cyclictest3244166-21grep08:50:290
3226176995028,17cyclictest167350irq/118-8000000.ethernet-tx010:55:240
322617699501,4cyclictest0-21swapper/008:15:110
3226176995010,8cyclictest0-21swapper/011:30:010
3226180994925,19cyclictest0-21swapper/207:30:262
322618099492,40cyclictest3235620-21grep08:00:272
322618099492,40cyclictest0-21swapper/210:20:272
322618099491,40cyclictest3272631-21/usr/sbin/munin11:40:202
322618099491,40cyclictest3272631-21/usr/sbin/munin11:40:202
322618099491,11cyclictest3230912-21df_inode07:35:192
3226178994910,10cyclictest0-21swapper/107:09:591
322617699495,10cyclictest0-21swapper/012:25:020
322617699495,10cyclictest0-21swapper/012:25:010
322617699491,11cyclictest3239469-21fschecks_time08:25:200
322618099483,38cyclictest3254388-21grep09:50:272
322618099482,40cyclictest1660-21snmpd08:50:292
322618099482,38cyclictest3261563-21ssh10:35:212
3226180994822,21cyclictest0-21swapper/208:10:192
322617699483,10cyclictest3226225-21latency_hist07:10:000
322618099465,34cyclictest0-21swapper/210:15:202
322618099462,38cyclictest0-21swapper/207:50:262
322618099462,36cyclictest0-21swapper/211:55:222
322618099432,33cyclictest3226303-21latency_hist07:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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