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2026-04-26 - 20:39

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 Sun Apr 26, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
369096499106101,2cyclictest0-21swapper/009:20:010
369096499821,71cyclictest0-21swapper/008:20:130
369096499801,2cyclictest0-21swapper/007:25:010
369096499791,2cyclictest0-21swapper/007:20:010
369096499752,60cyclictest0-21swapper/007:35:110
3690964997237,29cyclictest3710345-21fschecks_time09:00:190
3690964997233,32cyclictest3697293-21latency_hist07:45:020
3690964997233,32cyclictest3697293-21latency_hist07:45:010
369096499692,4cyclictest0-21swapper/009:15:290
3690964996838,3cyclictest3736382-21munin-plugin-st11:35:000
3690964996837,26cyclictest20650irq/252-8000000.ethernet12:30:180
369096499681,2cyclictest0-21swapper/010:25:010
3690964996747,16cyclictest20650irq/252-8000000.ethernet10:50:260
3690964996733,31cyclictest3691837-21munin-plugin-st07:15:000
3690964996722,37cyclictest0-21swapper/007:10:010
3690964996637,26cyclictest20650irq/252-8000000.ethernet08:15:240
3690964996636,26cyclictest20650irq/252-8000000.ethernet09:10:250
3690964996633,29cyclictest3706100-21perl08:35:200
369096499661,4cyclictest3719098-21/usr/sbin/munin09:50:280
3690964996542,18cyclictest20650irq/252-8000000.ethernet09:40:000
3690964996539,22cyclictest0-21swapper/007:35:000
3690964996539,21cyclictest20650irq/252-8000000.ethernet07:50:020
3690964996440,20cyclictest167350irq/118-8000000.ethernet-tx008:00:180
3690964996439,22cyclictest20650irq/252-8000000.ethernet11:45:300
3690964996438,22cyclictest20650irq/252-8000000.ethernet12:30:000
3690964996434,22cyclictest20650irq/252-8000000.ethernet10:45:160
369096499641,2cyclictest0-21swapper/011:55:010
369096699636,29cyclictest22-21rcuc/108:20:011
3690964996337,23cyclictest20650irq/252-8000000.ethernet10:40:230
3690964996236,22cyclictest20650irq/252-8000000.ethernet07:25:200
3690964996229,29cyclictest3705423-21/usr/sbin/munin08:30:260
3690964996137,20cyclictest20650irq/252-8000000.ethernet08:55:230
3690964996130,27cyclictest3731563-21fschecks_time11:05:200
3690966996044,12cyclictest231ktimers/107:30:141
369096499607,43cyclictest3732997-21latency_hist11:15:000
3690964996034,23cyclictest20650irq/252-8000000.ethernet08:45:180
3690964996028,28cyclictest3701266-21ptp4l08:05:280
369096499601,4cyclictest3719778-21irqstats09:55:230
369096699598,15cyclictest3696557-21kworker/u8:2+ext4-rsv-conversion08:05:001
369096499592,4cyclictest3737223-21munin-run11:40:010
3690964995845,10cyclictest20650irq/252-8000000.ethernet11:30:000
3690964995836,18cyclictest20650irq/252-8000000.ethernet07:50:020
3690964995834,21cyclictest0-21swapper/010:30:240
369096499581,54cyclictest0-21swapper/008:40:140
369096499581,22cyclictest0-21swapper/009:30:130
3690964995720,4cyclictest20850irq/208-8000000.ethernet08:50:270
369096499571,3cyclictest0-21swapper/009:40:240
3690964995711,37cyclictest0-21swapper/010:15:010
3690964995636,17cyclictest20650irq/252-8000000.ethernet11:55:290
3690964995622,31cyclictest20850irq/208-8000000.ethernet08:25:200
3690964995622,28cyclictest0-21swapper/011:20:290
3690964995617,8cyclictest3711752-21latency_hist09:10:020
3690964995617,8cyclictest3711752-21latency_hist09:10:010
3690964995530,22cyclictest20850irq/208-8000000.ethernet12:35:210
3690964995521,32cyclictest3721053-21latency_hist10:05:020
3690964995521,32cyclictest3721053-21latency_hist10:05:020
3690964995521,29cyclictest0-21swapper/012:05:000
369096499551,6cyclictest3721376-21lsblk10:05:210
369096499551,3cyclictest3722693-21apt-get10:15:050
369096499551,3cyclictest3717803-21df09:45:170
3690964995438,13cyclictest20650irq/252-8000000.ethernet11:05:000
3690964995435,16cyclictest20650irq/252-8000000.ethernet12:10:250
3690964995432,17cyclictest0-21swapper/009:25:200
3690964995422,29cyclictest20850irq/208-8000000.ethernet10:25:230
3690964995422,26cyclictest0-21swapper/010:35:180
3690964995418,4cyclictest20850irq/208-8000000.ethernet12:05:160
3690964995418,4cyclictest20850irq/208-8000000.ethernet12:05:160
3690964995417,31cyclictest0-21swapper/012:25:020
3690967995326,4cyclictest0-21swapper/207:15:012
3690966995234,12cyclictest3720167-21sendmail10:00:001
3690964995226,23cyclictest0-21swapper/011:15:190
3690966995133,12cyclictest231ktimers/109:25:121
369096699512,18cyclictest0-21swapper/111:50:001
3690966995032,13cyclictest231ktimers/108:30:141
3690966995029,14cyclictest231ktimers/111:15:131
3690964995012,4cyclictest0-21swapper/011:40:200
3690964994921,25cyclictest20850irq/208-8000000.ethernet12:20:010
3690964994920,27cyclictest20850irq/208-8000000.ethernet10:55:170
3690966994831,9cyclictest0-21swapper/109:40:281
3690966994828,13cyclictest231ktimers/111:55:141
369096499481,19cyclictest0-21swapper/007:55:240
3690966994735,7cyclictest0-21swapper/108:45:291
3690966994735,6cyclictest3692860-21grep07:15:291
3690966994625,14cyclictest231ktimers/110:35:131
3690964994617,3cyclictest20850irq/208-8000000.ethernet08:10:170
3690964994617,3cyclictest20850irq/208-8000000.ethernet08:10:170
3690966994533,8cyclictest0-21swapper/107:10:281
3690966994531,9cyclictest3730380-21munin-plugin-st10:59:591
3690966994530,10cyclictest0-21swapper/111:50:201
3690966994527,12cyclictest0-21swapper/110:45:281
3690966994524,15cyclictest231ktimers/110:25:161
3690967994434,5cyclictest3706570-21sendmail08:40:002
3690966994431,9cyclictest0-21swapper/109:50:271
3690966994431,8cyclictest0-21swapper/112:35:281
3690966994424,13cyclictest231ktimers/108:15:161
3690967994330,8cyclictest0-21swapper/210:40:272
3690967994328,10cyclictest0-21swapper/208:15:012
3690967994328,10cyclictest0-21swapper/208:15:012
3690966994333,5cyclictest0-21swapper/111:20:301
3690966994331,6cyclictest0-21swapper/110:05:291
3690966994330,7cyclictest3742195-21grep12:05:291
3690966994330,7cyclictest3742195-21grep12:05:291
3690966994328,9cyclictest3726089-21grep10:30:301
3690966994324,10cyclictest0-21swapper/111:25:211
3690967994233,4cyclictest0-21swapper/211:15:192
3690967994231,8cyclictest0-21swapper/207:50:002
3690967994231,6cyclictest0-21swapper/212:10:292
3690967994229,9cyclictest0-21swapper/210:05:272
369096699426,19cyclictest24-21ksoftirqd/108:40:011
3690966994230,6cyclictest0-21swapper/110:00:271
3690966994230,6cyclictest0-21swapper/110:00:271
3690966994225,12cyclictest231ktimers/112:10:121
3690966994225,12cyclictest231ktimers/110:20:091
3690966994222,15cyclictest231ktimers/109:15:121
3690966994134,4cyclictest3709839-21grep08:55:291
3690966994125,11cyclictest0-21swapper/111:35:211
3690966994123,13cyclictest231ktimers/110:50:121
3690966994118,15cyclictest231ktimers/111:00:111
3690967994030,7cyclictest3704823-21unixbench_singl08:25:292
3690967994028,8cyclictest0-21swapper/208:00:302
3690966994028,7cyclictest0-21swapper/107:50:001
3690966994022,13cyclictest231ktimers/108:50:161
3690966994021,12cyclictest231ktimers/111:10:121
3690967993929,6cyclictest0-21swapper/209:10:292
3690967993927,7cyclictest3724414-21grep10:20:272
3690967993925,9cyclictest0-21swapper/211:00:212
3690966993930,5cyclictest0-21swapper/112:20:311
3690966993929,6cyclictest231ktimers/112:00:121
3690966993925,9cyclictest0-21swapper/109:00:181
3690966993925,11cyclictest231ktimers/107:40:131
3690966993925,11cyclictest231ktimers/107:40:131
3690966993923,9cyclictest3696115-21ptp4l07:35:271
3690966993922,12cyclictest0-21swapper/107:55:281
369096699391,9cyclictest0-21swapper/112:30:001
3690967993829,6cyclictest0-21swapper/209:20:212
3690967993829,5cyclictest3732796-21grep11:10:292
3690967993823,12cyclictest311ktimers/207:40:142
3690967993823,12cyclictest311ktimers/207:40:142
3690966993828,5cyclictest0-21swapper/109:20:291
3690966993827,5cyclictest0-21swapper/109:05:211
3690966993827,5cyclictest0-21swapper/109:05:211
3690966993824,10cyclictest0-21swapper/111:45:001
369096699381,7cyclictest0-21swapper/108:15:021
369096699381,7cyclictest0-21swapper/108:15:021
3690967993727,5cyclictest0-21swapper/209:40:022
3690967993724,10cyclictest0-21swapper/210:10:252
369096799371,5cyclictest0-21swapper/211:25:012
3690966993727,7cyclictest0-21swapper/108:05:301
369096699371,7cyclictest0-21swapper/111:10:011
3690966993716,16cyclictest231ktimers/109:30:101
3690967993626,5cyclictest0-21swapper/210:25:292
3690967993625,5cyclictest0-21swapper/208:30:172
3690967993528,4cyclictest274-21systemd-journal12:30:002
3690967993525,6cyclictest3698868-21grep07:50:292
3690967993524,8cyclictest0-21swapper/209:50:292
3690967993522,10cyclictest0-21swapper/207:35:262
3690967993520,11cyclictest311ktimers/209:15:132
3690966993524,7cyclictest3694554-21unixbench_multi07:25:301
3690966993524,6cyclictest0-21swapper/109:40:011
369096699351,28cyclictest0-21swapper/112:30:271
3690967993426,5cyclictest0-21swapper/207:25:302
3690967993424,5cyclictest0-21swapper/207:10:012
3690967993423,7cyclictest0-21swapper/209:40:202
3690967993421,9cyclictest0-21swapper/209:30:282
369096799341,27cyclictest0-21swapper/208:40:122
3690966993424,6cyclictest0-21swapper/108:25:261
3690966993423,7cyclictest3723580-21unixbench_singl10:15:291
3690967993323,6cyclictest0-21swapper/210:50:222
3690967993321,9cyclictest0-21swapper/210:00:002
3690967993321,8cyclictest0-21swapper/211:35:202
369096799331,26cyclictest0-21swapper/210:30:172
3690966993323,5cyclictest0-21swapper/112:15:281
3690967993224,5cyclictest3742292-21grep12:10:002
3690967993224,5cyclictest3742292-21grep12:10:002
3690966993222,5cyclictest3718337-21grep09:45:301
3690966993221,6cyclictest0-21swapper/110:40:271
3690966993221,4cyclictest0-21swapper/108:40:191
369096799315,22cyclictest3717749-21/usr/sbin/munin09:45:202
3690967993125,4cyclictest3699803-21sh08:00:002
3690967993123,4cyclictest3693738-21unixbench_multi07:20:292
3690967993123,4cyclictest0-21swapper/208:20:262
3690967993122,5cyclictest0-21swapper/210:35:292
3690967993120,8cyclictest0-21swapper/209:10:002
3690967993120,8cyclictest0-21swapper/209:10:002
3690967993117,9cyclictest0-21swapper/211:25:262
3690967993113,8cyclictest3746708-21/usr/sbin/munin12:35:192
369096799311,28cyclictest0-21swapper/211:40:222
3690966993121,5cyclictest0-21swapper/110:10:281
3690967993022,5cyclictest0-21swapper/212:00:282
3690967993021,6cyclictest3746405-21grep12:30:292
3690967993021,6cyclictest3730258-21grep10:55:282
3690967993021,6cyclictest311ktimers/208:15:242
3690967993021,5cyclictest0-21swapper/208:05:282
3690967993014,11cyclictest0-21swapper/211:55:182
369096799301,27cyclictest3743331-21/usr/sbin/munin12:15:212
3690966993022,6cyclictest294-21systemd-udevd11:32:321
3690967992924,4cyclictest0-21swapper/207:15:222
3690967992923,4cyclictest3732064-21cron11:10:012
3690967992923,4cyclictest3690958-21cyclictest09:05:002
3690967992920,5cyclictest3708199-21grep08:45:302
3690967992916,9cyclictest0-21swapper/211:45:212
3690967992915,8cyclictest0-21swapper/210:50:002
369096799291,26cyclictest0-21swapper/208:55:172
3690966992916,7cyclictest0-21swapper/107:10:011
3690967992819,6cyclictest0-21swapper/208:50:312
3690967992818,6cyclictest3736338-21grep11:30:292
3690967992818,6cyclictest0-21swapper/210:00:282
3690967992818,6cyclictest0-21swapper/210:00:282
369096699287,14cyclictest231ktimers/109:10:141
3690967992718,4cyclictest0-21swapper/212:20:222
369096799271,4cyclictest274-21systemd-journal10:19:472
369096799271,4cyclictest0-21swapper/209:30:002
369096799271,24cyclictest0-21swapper/207:30:182
369096699271,3cyclictest0-21swapper/107:24:321
3690966992516,7cyclictest231ktimers/107:50:121
3690967992315,5cyclictest0-21swapper/211:50:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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