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2026-08-30 - 00:44

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 Sat Aug 29, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
702499999358,23cyclictest0-21swapper/209:40:012
70249599901,39cyclictest718957-21gpg-connect-age08:45:010
70249599901,39cyclictest718957-21gpg-connect-age08:45:010
70249599776,31cyclictest20850irq/208-8000000.ethernet10:45:020
70249599767,43cyclictest753833-21gpg-connect-age12:10:010
702495996819,11cyclictest0-21swapper/009:30:010
702498996731,30cyclictest0-21swapper/107:15:021
702498996625,35cyclictest0-21swapper/108:35:301
70249999634,27cyclictest30-21rcuc/212:00:182
702498996331,25cyclictest0-21swapper/108:45:291
702498996327,31cyclictest0-21swapper/107:35:291
702498996327,31cyclictest0-21swapper/107:35:281
702498996222,33cyclictest0-21swapper/112:30:021
702499996049,8cyclictest311ktimers/208:10:122
702498996023,5cyclictest723001-21grep09:05:291
70249899601,2cyclictest0-21swapper/108:35:011
702498995921,32cyclictest0-21swapper/108:05:301
702498995921,11cyclictest0-21swapper/112:35:211
702498995920,7cyclictest0-21swapper/111:00:291
702498995919,4cyclictest0-21swapper/109:55:011
70249899581,32cyclictest0-21swapper/110:50:211
702498995629,21cyclictest0-21swapper/109:35:211
702498995617,5cyclictest0-21swapper/107:50:211
702498995514,33cyclictest0-21swapper/107:40:291
70249899551,13cyclictest731839-21/usr/sbin/munin10:00:191
702499995419,19cyclictest702492-21cyclictest11:35:012
70249899547,12cyclictest0-21swapper/107:35:011
702498995419,4cyclictest0-21swapper/108:10:221
702498995321,5cyclictest0-21swapper/111:05:271
702499995244,4cyclictest311ktimers/212:40:012
702498995232,16cyclictest167450irq/126-8000000.ethernet-tx109:00:001
702498995223,4cyclictest47-21kauditd08:24:591
70249899522,29cyclictest745442-21/usr/sbin/munin11:20:181
702498995219,6cyclictest0-21swapper/112:05:281
702498995219,5cyclictest0-21swapper/109:20:191
702498995219,10cyclictest0-21swapper/110:15:011
702495995234,13cyclictest131ktimers/011:05:120
702498995139,7cyclictest754537-21grep12:10:281
702498995124,6cyclictest0-21swapper/110:55:301
702498995117,10cyclictest0-21swapper/110:05:291
70249899511,12cyclictest0-21swapper/110:35:011
702495995144,4cyclictest167350irq/118-8000000.ethernet-tx007:15:390
702498995017,6cyclictest0-21swapper/110:15:301
702495995042,4cyclictest0-21swapper/009:35:150
702495995012,3cyclictest719387-21memory08:45:260
702499994932,11cyclictest751980-21sendmail12:00:002
702499994927,16cyclictest311ktimers/211:20:142
70249599489,36cyclictest12-21ksoftirqd/007:55:190
702495994841,4cyclictest167350irq/118-8000000.ethernet-tx012:10:170
702495994838,5cyclictest0-21swapper/008:35:290
702499994740,4cyclictest711183-21sendmail08:00:002
702499994726,15cyclictest311ktimers/210:40:122
70249899471,4cyclictest0-21swapper/111:50:011
70249899471,4cyclictest0-21swapper/111:50:011
70249599474,4cyclictest15-21rcuc/010:00:010
702499994638,5cyclictest731524-21cron10:00:002
702499994637,5cyclictest705285-21grep07:25:002
702499994623,14cyclictest311ktimers/209:40:102
702499994623,14cyclictest311ktimers/209:40:102
702498994620,20cyclictest0-21swapper/111:40:261
702495994632,9cyclictest0-21swapper/011:30:000
702495994629,9cyclictest0-21swapper/011:20:010
702495994622,21cyclictest15-21rcuc/011:00:280
70249599461,4cyclictest0-21swapper/008:08:100
702498994531,9cyclictest0-21swapper/107:20:301
70249599456,37cyclictest0-21swapper/009:20:170
702495994535,7cyclictest0-21swapper/011:00:000
702495994535,6cyclictest0-21swapper/007:40:010
702495994535,6cyclictest0-21swapper/007:40:010
702495994534,6cyclictest0-21swapper/010:25:290
70249599452,5cyclictest733937-21tail10:10:250
702498994428,10cyclictest0-21swapper/112:00:261
70249899441,2cyclictest0-21swapper/111:30:011
702495994436,4cyclictest167350irq/118-8000000.ethernet-tx012:30:270
702495994434,5cyclictest12-21ksoftirqd/009:15:270
70249599442,8cyclictest727212-21unixbench_multi09:30:280
70249599442,8cyclictest0-21swapper/010:10:010
70249599442,7cyclictest716523-21df_inode08:30:170
70249599435,10cyclictest0-21swapper/010:15:210
702495994337,3cyclictest0-21swapper/009:09:590
702495994335,4cyclictest167350irq/118-8000000.ethernet-tx010:30:230
702495994333,7cyclictest715689-21diskstats08:25:200
702495994331,8cyclictest0-21swapper/011:50:280
702495994321,9cyclictest12-21ksoftirqd/007:10:000
70249599431,37cyclictest709692-21date07:50:000
702495994312,9cyclictest702492-21cyclictest08:05:010
702499994234,5cyclictest707701-21grep07:35:292
702499994234,5cyclictest707701-21grep07:35:292
702499994233,5cyclictest748566-21grep11:35:302
702498994219,18cyclictest738685-21/usr/sbin/munin10:40:191
702495994231,8cyclictest721404-21sendmail09:00:000
70249599421,39cyclictest0-21swapper/012:15:240
70249599421,39cyclictest0-21swapper/012:15:240
70249599421,26cyclictest0-21swapper/012:00:140
702499994127,11cyclictest311ktimers/210:25:132
702499994115,13cyclictest311ktimers/208:30:162
702498994127,9cyclictest231ktimers/111:55:121
70249599413,35cyclictest15-21rcuc/008:15:230
70249599413,35cyclictest15-21rcuc/008:15:230
70249599412,6cyclictest740699-21phc2sys10:50:260
70249599411,4cyclictest0-21swapper/010:45:240
702499994031,5cyclictest0-21swapper/207:15:002
702499994026,9cyclictest0-21swapper/209:05:292
70249899401,2cyclictest0-21swapper/110:00:011
702495994033,4cyclictest0-21swapper/011:40:150
702495994033,4cyclictest0-21swapper/011:35:300
702495994033,4cyclictest0-21swapper/009:00:250
702495994033,4cyclictest0-21swapper/009:00:250
702495994031,4cyclictest15-21rcuc/009:40:260
702495994031,4cyclictest15-21rcuc/009:40:260
702495994030,6cyclictest0-21swapper/010:35:290
70249599402,4cyclictest723448-21lsblk09:10:200
70249599401,4cyclictest745634-21ssh11:20:210
70249599401,3cyclictest0-21swapper/007:35:010
702495994013,3cyclictest0-21swapper/008:15:010
702499993929,6cyclictest744290-21grep11:10:302
702499993921,14cyclictest311ktimers/210:35:142
702499993913,13cyclictest311ktimers/212:10:122
70249599395,6cyclictest0-21swapper/007:45:010
702495993925,9cyclictest0-21swapper/012:25:300
702495993921,11cyclictest131ktimers/007:25:130
70249599391,36cyclictest0-21swapper/010:20:220
70249599391,36cyclictest0-21swapper/008:20:160
70249599391,36cyclictest0-21swapper/007:50:200
70249599391,2cyclictest0-21swapper/012:25:000
702499993834,2cyclictest742323-21sshd11:00:242
702499993827,8cyclictest0-21swapper/210:00:272
702499993826,8cyclictest0-21swapper/212:30:012
702499993819,11cyclictest0-21swapper/207:45:202
702498993830,4cyclictest0-21swapper/108:00:291
702498993828,6cyclictest0-21swapper/109:30:281
702498993828,5cyclictest0-21swapper/110:35:311
702498993823,10cyclictest0-21swapper/107:25:291
70249899381,31cyclictest0-21swapper/111:50:261
70249599385,29cyclictest730599-21unixbench_multi09:50:290
70249599382,34cyclictest0-21swapper/012:35:140
702495993817,19cyclictest0-21swapper/007:20:190
70249599381,3cyclictest751393-21ssh11:55:170
702499993729,5cyclictest717835-21grep08:35:302
702499993728,5cyclictest725639-21munin-plugin-st09:25:002
702499993724,9cyclictest0-21swapper/209:15:282
702499993724,8cyclictest0-21swapper/209:00:302
702499993724,8cyclictest0-21swapper/209:00:302
702499993723,10cyclictest744581-21/usr/sbin/munin11:15:272
702499993712,13cyclictest311ktimers/210:50:132
70249899375,3cyclictest0-21swapper/108:55:021
702498993728,5cyclictest0-21swapper/111:30:181
702498993727,6cyclictest740131-21grep10:45:311
702495993731,4cyclictest0-21swapper/011:10:130
70249599372,32cyclictest0-21swapper/011:30:290
70249599371,34cyclictest0-21swapper/008:50:190
702499993629,4cyclictest0-21swapper/209:50:002
702499993625,8cyclictest311ktimers/212:15:172
702499993625,8cyclictest311ktimers/212:15:162
702499993623,9cyclictest0-21swapper/207:25:212
702498993628,5cyclictest0-21swapper/108:45:001
702498993628,5cyclictest0-21swapper/108:45:001
702495993631,3cyclictest0-21swapper/009:45:180
702495993628,4cyclictest23850irq/422-mmc110:05:020
70249599361,4cyclictest0-21swapper/011:45:120
70249599361,4cyclictest0-21swapper/011:45:120
702499993524,7cyclictest0-21swapper/212:05:282
702499993524,6cyclictest0-21swapper/208:45:282
702499993523,8cyclictest0-21swapper/209:50:292
702499993522,7cyclictest0-21swapper/207:15:432
702499993521,9cyclictest0-21swapper/207:50:262
702499993520,11cyclictest0-21swapper/208:25:282
702499993518,12cyclictest311ktimers/211:05:142
702498993522,9cyclictest0-21swapper/112:35:001
702499993424,5cyclictest0-21swapper/210:55:262
702499993420,9cyclictest0-21swapper/207:45:012
702499993417,11cyclictest0-21swapper/210:20:022
702499993413,13cyclictest311ktimers/207:30:102
702499993322,8cyclictest0-21swapper/208:00:272
702499993312,16cyclictest311ktimers/210:10:142
702498993320,7cyclictest231ktimers/109:00:261
702498993320,7cyclictest231ktimers/109:00:261
702498993318,10cyclictest0-21swapper/111:35:301
70249899331,27cyclictest0-21swapper/107:55:081
70249899331,26cyclictest0-21swapper/109:28:071
702499993226,4cyclictest702492-21cyclictest11:55:002
702499993224,4cyclictest0-21swapper/209:25:272
702499993223,4cyclictest0-21swapper/212:20:122
702499993220,9cyclictest718795-21cut08:45:012
702499993220,9cyclictest718795-21cut08:45:012
702498993218,9cyclictest0-21swapper/109:45:011
702498993218,9cyclictest0-21swapper/109:45:011
70249899321,3cyclictest0-21swapper/109:15:011
702499993124,4cyclictest0-21swapper/209:10:272
702498993124,3cyclictest0-21swapper/111:10:221
702498993122,4cyclictest0-21swapper/112:15:201
702498993122,4cyclictest0-21swapper/112:15:201
70249899311,25cyclictest0-21swapper/110:20:301
70249999303,20cyclictest32-21ksoftirqd/210:45:132
702499993021,5cyclictest720512-21grep08:50:302
702498993024,3cyclictest0-21swapper/107:20:001
702498993020,7cyclictest0-21swapper/111:15:311
70249899301,2cyclictest0-21swapper/109:50:011
702499992923,3cyclictest727403-21latency_hist09:35:012
702499992921,5cyclictest0-21swapper/210:05:302
702499992921,4cyclictest0-21swapper/208:05:302
702499992917,7cyclictest0-21swapper/207:10:012
70249999291,4cyclictest0-21swapper/208:15:162
70249999291,4cyclictest0-21swapper/208:15:162
702498992919,6cyclictest0-21swapper/107:10:011
702498992918,7cyclictest0-21swapper/108:20:011
702498992918,7cyclictest0-21swapper/108:20:011
702499992818,8cyclictest746283-21/usr/sbin/munin11:25:192
702499992815,7cyclictest0-21swapper/212:35:012
70249999281,25cyclictest0-21swapper/211:45:292
70249999281,25cyclictest0-21swapper/211:45:292
70249899283,22cyclictest0-21swapper/112:22:261
70249899281,25cyclictest0-21swapper/108:25:031
70249899281,14cyclictest708860-21/usr/sbin/munin07:45:191
702495992824,2cyclictest0-21swapper/007:10:000
702499992713,7cyclictest0-21swapper/208:55:162
70249999271,23cyclictest737267-21uname10:30:232
702498992719,4cyclictest0-21swapper/109:15:221
702498992712,9cyclictest0-21swapper/110:25:291
702499992616,6cyclictest0-21swapper/208:20:232
70249999251,2cyclictest0-21swapper/211:40:082
702499992316,4cyclictest0-21swapper/210:20:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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