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2026-10-01 - 16:24

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 Oct 01, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4232479910138,60cyclictest0-21swapper/011:45:050
423247999430,59cyclictest20650irq/252-8000000.ethernet08:00:310
42324799931,7cyclictest0-21swapper/008:50:000
42324799891,2cyclictest0-21swapper/007:10:000
42324799878,12cyclictest437300-21/usr/sbin/munin08:30:180
423247998734,50cyclictest0-21swapper/009:25:120
42324799851,2cyclictest0-21swapper/012:10:010
42324799851,2cyclictest0-21swapper/012:10:010
423247998344,35cyclictest476484-21sendmail12:20:000
42324799797,64cyclictest424072-21munin-node07:15:010
42324799797,64cyclictest424072-21munin-node07:15:000
423247997823,52cyclictest464623-21tune2fs11:10:180
423247997323,47cyclictest20650irq/252-8000000.ethernet11:35:270
423247997217,49cyclictest0-21swapper/010:30:290
423247997163,4cyclictest0-21swapper/009:35:140
423247997163,4cyclictest0-21swapper/009:35:130
423247997121,41cyclictest434231-21/usr/sbin/munin08:10:260
423247997064,4cyclictest131ktimers/007:55:160
423247997026,41cyclictest20650irq/252-8000000.ethernet08:05:110
423247997026,41cyclictest20650irq/252-8000000.ethernet08:05:110
423247997020,45cyclictest426154-21latency_hist07:25:010
423247997019,43cyclictest456152-21/usr/sbin/munin10:20:170
423247997017,50cyclictest466820-21users11:20:270
423247996926,39cyclictest20650irq/252-8000000.ethernet07:50:000
423247996923,43cyclictest20650irq/252-8000000.ethernet09:15:210
423247996830,35cyclictest20650irq/252-8000000.ethernet10:55:260
423247996823,42cyclictest20650irq/252-8000000.ethernet12:30:010
423247996725,38cyclictest20650irq/252-8000000.ethernet12:35:150
423247996723,41cyclictest20650irq/252-8000000.ethernet12:10:170
423247996624,39cyclictest20650irq/252-8000000.ethernet10:35:240
423247996623,39cyclictest20650irq/252-8000000.ethernet09:40:260
42325199655,31cyclictest30-21rcuc/207:40:022
423247996523,39cyclictest20650irq/252-8000000.ethernet07:25:170
423247996520,41cyclictest0-21swapper/011:05:000
423247996424,37cyclictest20650irq/252-8000000.ethernet09:50:300
423247996423,38cyclictest20650irq/252-8000000.ethernet07:15:280
423247996422,39cyclictest20650irq/252-8000000.ethernet09:55:060
423247996422,35cyclictest20650irq/252-8000000.ethernet09:10:120
423247996417,45cyclictest478533-21df_inode12:30:160
423247996332,26cyclictest0-21swapper/011:35:010
423247996328,31cyclictest20650irq/252-8000000.ethernet08:55:000
423247996324,36cyclictest20650irq/252-8000000.ethernet11:40:230
423247996319,39cyclictest1660-21snmpd08:57:530
423247996222,38cyclictest20650irq/252-8000000.ethernet08:15:180
423247996220,35cyclictest20650irq/252-8000000.ethernet08:25:130
423247996217,42cyclictest428987-21if_err_eth007:40:210
42324799616,48cyclictest0-21swapper/009:35:000
423247996122,37cyclictest0-21swapper/010:40:210
423247996031,22cyclictest20850irq/208-8000000.ethernet10:15:120
423247996028,30cyclictest438787-21sendmail08:40:000
423247995924,32cyclictest20650irq/252-8000000.ethernet12:20:250
423247995919,37cyclictest450134-21df_inode09:45:180
423247995918,38cyclictest442450-21diskstats09:00:200
423247995914,43cyclictest20650irq/252-8000000.ethernet11:25:240
423247995818,38cyclictest0-21swapper/010:10:260
423247995722,3cyclictest435816-21ssh08:20:200
42325199569,23cyclictest311ktimers/208:35:012
42325199564,33cyclictest32-21ksoftirqd/208:20:172
423247995618,35cyclictest430574-21tune2fs07:50:210
423247995616,35cyclictest0-21swapper/007:30:160
423247995447,4cyclictest0-21swapper/009:05:120
423247995424,26cyclictest20850irq/208-8000000.ethernet11:50:260
423247995424,26cyclictest20850irq/208-8000000.ethernet11:50:260
42324799541,4cyclictest0-21swapper/010:45:250
42324799531,23cyclictest0-21swapper/009:20:130
42324799531,23cyclictest0-21swapper/009:20:120
423247995216,33cyclictest461619-21run-parts10:50:270
42324799515,3cyclictest0-21swapper/012:05:010
423247995144,4cyclictest167350irq/118-8000000.ethernet-tx008:45:000
423247995114,9cyclictest0-21swapper/011:05:180
423251995036,9cyclictest0-21swapper/207:15:022
423251995036,9cyclictest0-21swapper/207:15:012
423251994941,5cyclictest472924-21apt12:00:002
423251994933,9cyclictest311ktimers/212:15:102
423247994920,4cyclictest0-21swapper/011:55:110
423247994915,31cyclictest1-21systemd10:03:330
42324899487,10cyclictest0-21swapper/110:05:011
42324799481,3cyclictest428181-21irqstats07:35:230
423251994738,5cyclictest426041-21munin-plugin-st07:25:002
42324899471,14cyclictest0-21swapper/109:50:011
423247994716,25cyclictest0-21swapper/010:05:110
423247994614,13cyclictest0-21swapper/010:29:260
423247994614,13cyclictest0-21swapper/010:29:260
423251994537,5cyclictest425185-21cat07:19:592
423251994537,4cyclictest0-21swapper/208:55:012
423251994534,8cyclictest469474-21sendmail11:40:012
423248994532,8cyclictest0-21swapper/110:40:001
423248994530,11cyclictest0-21swapper/112:05:011
423251994428,11cyclictest451710-21apt-key09:55:012
423248994420,5cyclictest832-21systemd-network09:00:231
423251994330,8cyclictest0-21swapper/209:15:282
423251994330,5cyclictest465089-21grep11:10:282
423251994327,9cyclictest434413-21grep08:10:272
423251994321,14cyclictest0-21swapper/210:05:022
423248994330,8cyclictest0-21swapper/109:30:291
42324799431,2cyclictest0-21swapper/011:15:250
423251994232,5cyclictest435322-21sendmail08:19:592
423251994230,8cyclictest0-21swapper/211:45:012
42324899423,5cyclictest468524-21apt-get11:35:011
423248994228,8cyclictest0-21swapper/112:15:181
42325199419,17cyclictest442377-21/usr/sbin/munin09:00:192
423251994129,9cyclictest0-21swapper/207:50:302
423248994126,10cyclictest0-21swapper/107:50:221
423248994119,15cyclictest0-21swapper/111:45:011
42324899411,4cyclictest0-21swapper/109:45:011
423251994033,4cyclictest167550irq/134-8000000.ethernet-tx212:05:002
423251994030,7cyclictest1283-21cron11:10:002
423248994030,6cyclictest0-21swapper/109:35:281
423248994030,6cyclictest0-21swapper/109:35:281
423248994027,8cyclictest0-21swapper/108:05:281
423248994027,8cyclictest0-21swapper/108:05:281
423251993931,5cyclictest311ktimers/211:00:112
423251993926,9cyclictest0-21swapper/210:10:182
423251993925,6cyclictest0-21swapper/209:35:252
423251993925,6cyclictest0-21swapper/209:35:252
423251993923,10cyclictest311ktimers/211:15:152
423251993921,11cyclictest311ktimers/210:05:142
42324899391,2cyclictest0-21swapper/112:00:011
42324899391,2cyclictest0-21swapper/108:35:001
423251993824,11cyclictest423242-21cyclictest08:25:162
423251993823,10cyclictest0-21swapper/210:35:002
423248993829,5cyclictest0-21swapper/108:14:591
423248993829,4cyclictest0-21swapper/107:10:291
423248993829,4cyclictest0-21swapper/107:10:291
423248993826,8cyclictest0-21swapper/112:25:191
423248993825,9cyclictest1660-21snmpd07:35:131
423248993823,9cyclictest446347-21grep09:20:271
423248993823,9cyclictest446347-21grep09:20:271
42324899381,4cyclictest0-21swapper/108:30:011
42324899381,2cyclictest0-21swapper/111:15:021
423251993728,5cyclictest0-21swapper/207:40:282
423251993727,7cyclictest460876-21grep10:45:292
42324899379,4cyclictest0-21swapper/110:20:011
42324899373,2cyclictest0-21swapper/108:05:011
423248993726,8cyclictest463405-21unixbench_singl11:00:281
423248993726,7cyclictest0-21swapper/110:45:261
423251993627,5cyclictest0-21swapper/210:55:202
423251993623,8cyclictest0-21swapper/209:20:282
423251993623,8cyclictest0-21swapper/209:20:282
423248993626,5cyclictest0-21swapper/112:20:201
423248993626,5cyclictest0-21swapper/110:10:261
423248993624,8cyclictest0-21swapper/112:30:261
423248993624,7cyclictest0-21swapper/111:20:271
423248993622,10cyclictest0-21swapper/108:20:251
42324899361,2cyclictest0-21swapper/111:30:021
423251993527,5cyclictest479832-21grep12:35:282
423251993525,6cyclictest0-21swapper/211:50:272
423251993525,6cyclictest0-21swapper/211:50:272
423251993524,8cyclictest447890-21proc_pri09:30:272
423251993524,7cyclictest0-21swapper/210:25:262
423251993524,7cyclictest0-21swapper/210:25:262
423251993523,9cyclictest311ktimers/212:20:172
423251993522,7cyclictest0-21swapper/212:25:292
423251993522,10cyclictest0-21swapper/212:10:012
423251993522,10cyclictest0-21swapper/212:10:012
423251993512,5cyclictest832-21systemd-network10:54:552
423248993526,5cyclictest0-21swapper/107:25:181
42324899351,4cyclictest0-21swapper/108:00:021
42325199344,18cyclictest438140-21/usr/sbin/munin08:35:182
423251993427,4cyclictest0-21swapper/211:30:262
423251993425,4cyclictest0-21swapper/208:55:212
423251993424,6cyclictest0-21swapper/210:40:282
423251993423,8cyclictest311ktimers/209:45:132
423251993422,9cyclictest311ktimers/207:55:112
423248993426,6cyclictest443632-21cut09:05:271
423248993422,8cyclictest0-21swapper/112:05:281
423248993422,8cyclictest0-21swapper/112:05:281
42324899341,4cyclictest0-21swapper/109:20:001
423251993324,4cyclictest423194-21kworker/u8:0+flush-179:9607:30:042
423251993323,5cyclictest0-21swapper/211:25:252
423251993323,5cyclictest0-21swapper/208:05:202
423251993323,5cyclictest0-21swapper/208:05:202
423251993322,7cyclictest0-21swapper/211:50:002
423251993321,9cyclictest0-21swapper/211:20:262
423251993321,9cyclictest0-21swapper/207:25:272
423251993319,8cyclictest0-21swapper/210:20:012
423251993312,4cyclictest8321systemd-network09:27:562
423248993325,4cyclictest0-21swapper/109:55:261
423248993321,7cyclictest0-21swapper/107:30:261
423248993319,11cyclictest0-21swapper/112:35:251
423248993313,12cyclictest0-21swapper/107:15:021
42324899331,2cyclictest0-21swapper/110:10:001
42324899331,27cyclictest0-21swapper/110:20:281
423251993224,4cyclictest0-21swapper/207:45:282
423251993222,5cyclictest0-21swapper/208:45:212
423251993221,6cyclictest459130-21grep10:35:282
42325199321,4cyclictest0-21swapper/209:10:012
42324899325,16cyclictest457753-21/usr/sbin/munin10:30:181
423248993223,4cyclictest0-21swapper/110:25:191
423248993223,4cyclictest0-21swapper/110:25:191
423248993220,8cyclictest0-21swapper/110:40:201
42324899321,6cyclictest0-21swapper/109:00:021
42324899321,2cyclictest0-21swapper/111:40:011
42324899321,2cyclictest0-21swapper/109:30:011
423251993122,4cyclictest475804-21cat12:15:012
423251993121,8cyclictest311ktimers/209:10:102
423248993122,5cyclictest0-21swapper/108:50:251
42324899311,5cyclictest0-21swapper/111:50:001
42324899311,24cyclictest0-21swapper/110:50:271
42324899311,24cyclictest0-21swapper/108:15:191
423251993021,6cyclictest30-21rcuc/208:00:312
423251993019,8cyclictest449648-21/usr/sbin/munin09:40:272
423251993019,7cyclictest0-21swapper/212:30:202
423248993022,6cyclictest450904-21/usr/sbin/munin09:50:241
423248993021,5cyclictest0-21swapper/112:10:241
42324899301,2cyclictest0-21swapper/111:20:011
423251992921,6cyclictest0-21swapper/210:20:192
423248992921,4cyclictest0-21swapper/109:10:241
423248992916,9cyclictest0-21swapper/107:45:191
423251992822,4cyclictest30-21rcuc/208:40:242
423248992821,5cyclictest438999-21/usr/sbin/munin08:40:251
423248992819,6cyclictest464189-21unixbench_multi11:05:281
42324899281,3cyclictest0-21swapper/107:40:151
423248992719,5cyclictest0-21swapper/110:55:251
423248992718,7cyclictest1660-21snmpd08:38:071
42324899271,24cyclictest0-21swapper/108:47:271
423251992610,12cyclictest0-21swapper/209:55:252
423251992417,4cyclictest0-21swapper/207:10:012
423248992414,6cyclictest0-21swapper/111:50:271
423248992414,6cyclictest0-21swapper/111:50:271
423248992214,6cyclictest231ktimers/107:20:151
423248992114,5cyclictest423276-21cat07:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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