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2026-05-19 - 23:56

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 Tue May 19, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
301537099841,71cyclictest0-21swapper/007:30:120
301537099814,69cyclictest0-21swapper/007:45:190
301537499804,42cyclictest32-21ksoftirqd/208:35:192
3015370997740,31cyclictest3036993-21munin-plugin-st09:15:000
301537199733,36cyclictest3017302-21apt-get07:20:011
301537099731,65cyclictest3066396-21/usr/sbin/munin12:05:210
301537099701,62cyclictest274-21systemd-journal11:50:190
301537099701,62cyclictest274-21systemd-journal11:50:190
301537099691,59cyclictest3069703-21grep12:25:190
301537099682,4cyclictest3063055-21irqstats11:45:220
301537099681,64cyclictest3031885-21cp08:45:010
301537099681,57cyclictest0-21swapper/008:00:110
301537099672,3cyclictest3057772-21ssh11:15:210
301537099671,59cyclictest0-21swapper/011:25:010
301537099671,3cyclictest3049273-21diskstats10:25:180
301537099671,3cyclictest3026935-21df08:15:170
3015374996648,13cyclictest311ktimers/207:50:132
301537099661,62cyclictest3037245-21df09:15:160
301537099661,4cyclictest3054868-21users10:55:300
301537099661,3cyclictest3023561-21df07:55:160
301537099661,32cyclictest0-21swapper/008:20:160
301537099651,59cyclictest3053319-21latency_hist10:50:010
301537099651,28cyclictest0-21swapper/008:30:140
3015370996431,28cyclictest0-21swapper/007:25:000
3015370996431,28cyclictest0-21swapper/007:25:000
301537099642,7cyclictest3034362-21apt09:00:000
301537099642,7cyclictest3034362-21apt09:00:000
301537099642,3cyclictest274-21systemd-journal09:00:210
301537099641,57cyclictest3030900-21latency_hist08:40:010
301537099641,3cyclictest3065632-21meminfo12:00:250
3015370996326,33cyclictest0-21swapper/010:30:270
301537099631,30cyclictest0-21swapper/007:40:120
3015371996257,2cyclictest0-21swapper/109:35:011
3015370996226,4cyclictest20850irq/208-8000000.ethernet11:30:240
3015370996225,33cyclictest0-21swapper/007:15:300
301537099621,53cyclictest3071974-21latency_hist12:40:000
301537099621,4cyclictest3048573-21meminfo10:20:250
301537099621,3cyclictest3068460-21users12:15:290
301537099621,3cyclictest3043167-21df09:50:160
301537499616,16cyclictest3016343-21users07:15:022
301537499616,16cyclictest3016343-21users07:15:022
301537099612,5cyclictest3056574-21sshd11:07:550
301537099612,4cyclictest3022736-21df_inode07:50:180
301537099612,3cyclictest3061149-21tune2fs11:35:180
3015370996118,38cyclictest0-21swapper/007:25:290
301537099611,4cyclictest3052347-21users10:40:280
301537099611,31cyclictest0-21swapper/010:10:130
3015370996032,24cyclictest0-21swapper/009:45:000
3015370996028,29cyclictest20850irq/208-8000000.ethernet07:35:230
301537099602,4cyclictest3035812-21memory09:05:250
301537099602,3cyclictest3042349-21/usr/sbin/munin09:45:190
301537099602,3cyclictest3042349-21/usr/sbin/munin09:45:190
301537099601,57cyclictest0-21swapper/008:25:190
301537099601,4cyclictest3031757-21apt-get08:45:040
301537099601,32cyclictest0-21swapper/009:20:100
301537099601,28cyclictest0-21swapper/008:10:150
301537099591,53cyclictest1660-21snmpd12:30:110
301537099591,53cyclictest1660-21snmpd12:30:110
301537099591,27cyclictest1660-21snmpd11:14:230
3015374995849,5cyclictest3035225-21cut09:05:002
301537099583,4cyclictest3039710-21latency_hist09:30:010
301537099582,3cyclictest3069009-21memory12:20:240
301537099582,3cyclictest3045716-21diskstats10:05:170
301537099581,4cyclictest3025277-21diskstats08:05:170
301537499571,10cyclictest0-21swapper/211:55:022
301537099571,54cyclictest0-21swapper/009:35:150
301537099571,4cyclictest3040033-21memory09:30:250
301537099571,49cyclictest3044744-21latency_hist10:00:010
301537099571,31cyclictest0-21swapper/012:10:140
3015374995617,17cyclictest30-21rcuc/210:50:012
301537099562,6cyclictest3047968-21apt-get10:20:020
301537099561,50cyclictest0-21swapper/011:40:120
301537099561,2cyclictest3055116-21apt-get11:00:160
3015370995524,3cyclictest0-21swapper/010:00:200
3015370995518,4cyclictest0-21swapper/011:55:310
301537099551,50cyclictest3016239-21wc07:15:010
301537099551,50cyclictest3016239-21wc07:15:000
301537099551,25cyclictest3059460-21/usr/sbin/munin11:25:200
3015371995436,13cyclictest231ktimers/107:45:151
301537199538,26cyclictest22-21rcuc/110:30:011
3015371995334,13cyclictest231ktimers/110:00:141
3015370995317,8cyclictest0-21swapper/008:50:270
3015371995231,15cyclictest231ktimers/112:35:161
3015370995219,4cyclictest0-21swapper/010:50:200
3015371995139,5cyclictest231ktimers/108:45:131
3015374995038,6cyclictest167550irq/134-8000000.ethernet-tx211:40:012
3015371995033,11cyclictest231ktimers/110:05:121
301537099501,29cyclictest0-21swapper/010:39:230
3015374994732,10cyclictest0-21swapper/207:15:282
3015374994633,8cyclictest0-21swapper/209:40:282
3015374994629,10cyclictest0-21swapper/211:25:202
301537199466,33cyclictest22-21rcuc/110:35:011
3015371994636,7cyclictest3037843-21sendmail09:20:001
3015374994537,4cyclictest3042910-21munin-plugin-st09:50:002
3015374994537,4cyclictest3042910-21munin-plugin-st09:50:002
3015374994535,5cyclictest0-21swapper/208:05:002
3015371994530,11cyclictest231ktimers/107:10:141
3015371994530,11cyclictest231ktimers/107:10:141
3015374994436,4cyclictest0-21swapper/208:45:282
301537499432,15cyclictest30-21rcuc/209:35:012
3015371994334,6cyclictest0-21swapper/108:35:291
3015371994320,14cyclictest22-21rcuc/109:25:011
3015374994230,5cyclictest0-21swapper/211:40:292
3015374994222,13cyclictest311ktimers/210:35:152
301537199422,4cyclictest0-21swapper/110:45:011
3015371994219,14cyclictest231ktimers/111:40:121
3015371994215,17cyclictest3048273-21/usr/sbin/munin10:20:201
3015371994129,9cyclictest0-21swapper/110:40:281
3015374994031,5cyclictest3034357-21cron09:00:002
3015374994031,5cyclictest3034357-21cron08:59:592
3015374994027,9cyclictest0-21swapper/209:55:272
3015374994026,8cyclictest0-21swapper/208:05:262
3015374994021,12cyclictest311ktimers/211:10:132
3015374994019,12cyclictest311ktimers/208:50:112
3015371994028,6cyclictest3061542-21grep11:35:261
3015371994026,8cyclictest0-21swapper/111:35:001
3015374993931,5cyclictest3020769-21sh07:40:012
3015374993926,11cyclictest311ktimers/210:20:132
3015371993926,8cyclictest0-21swapper/109:40:281
3015371993924,11cyclictest0-21swapper/111:10:201
3015374993829,3cyclictest0-21swapper/210:30:192
3015374993828,6cyclictest3069250-21grep12:20:282
3015374993826,8cyclictest0-21swapper/211:05:012
3015374993825,9cyclictest0-21swapper/212:00:202
3015374993824,11cyclictest311ktimers/210:25:122
3015374993821,12cyclictest311ktimers/210:55:142
3015371993829,6cyclictest0-21swapper/107:51:201
3015374993727,6cyclictest3046811-21cut10:10:242
3015374993723,10cyclictest0-21swapper/212:35:012
3015374993723,10cyclictest0-21swapper/212:35:012
3015371993728,6cyclictest0-21swapper/109:50:201
3015371993727,6cyclictest231ktimers/109:05:111
3015371993719,9cyclictest0-21swapper/112:10:211
3015371993718,13cyclictest231ktimers/108:55:141
3015371993718,13cyclictest231ktimers/108:55:141
301537199371,28cyclictest3066788-21kworker/u8:3+events_power_efficient12:31:211
301537199371,28cyclictest3066788-21kworker/u8:3+events_power_efficient12:31:211
301537199371,13cyclictest0-21swapper/112:20:011
3015374993628,4cyclictest0-21swapper/207:20:292
3015374993628,4cyclictest0-21swapper/207:20:292
3015374993616,15cyclictest311ktimers/212:10:132
3015371993630,3cyclictest3035220-21apt-get09:04:591
3015371993628,5cyclictest0-21swapper/112:05:251
3015371993628,4cyclictest0-21swapper/111:00:221
3015371993620,9cyclictest3042817-21grep09:45:291
3015371993620,9cyclictest3042817-21grep09:45:281
3015371993620,12cyclictest231ktimers/112:25:131
301537199361,3cyclictest0-21swapper/108:35:021
301537199361,29cyclictest1653-21lldpd11:45:201
3015374993525,7cyclictest311ktimers/210:05:282
3015374993524,7cyclictest311ktimers/207:10:012
3015371993528,4cyclictest167450irq/126-8000000.ethernet-tx112:00:201
3015371993526,5cyclictest0-21swapper/110:00:001
3015371993526,4cyclictest0-21swapper/109:10:201
3015371993524,8cyclictest0-21swapper/111:05:281
3015371993523,9cyclictest3069344-21sh12:25:001
3015371993523,8cyclictest0-21swapper/109:35:281
3015371993521,10cyclictest0-21swapper/108:20:251
301537499343,21cyclictest3026043-21/usr/sbin/munin08:10:192
3015374993427,4cyclictest0-21swapper/211:20:282
3015374993426,5cyclictest0-21swapper/210:15:292
3015374993425,4cyclictest0-21swapper/211:30:192
3015374993422,9cyclictest0-21swapper/209:20:242
3015374993422,8cyclictest0-21swapper/212:05:192
3015374993421,9cyclictest0-21swapper/209:05:202
3015371993426,5cyclictest3027522-21sh08:20:001
3015371993425,5cyclictest0-21swapper/108:25:301
3015371993424,5cyclictest0-21swapper/108:40:211
3015371993422,9cyclictest0-21swapper/108:05:251
3015371993422,7cyclictest3065042-21grep11:55:311
3015371993420,11cyclictest0-21swapper/108:10:221
3015371993417,12cyclictest231ktimers/107:35:101
301537199341,2cyclictest0-21swapper/107:35:001
3015374993325,5cyclictest3029160-21grep08:25:302
3015374993322,8cyclictest30-21rcuc/212:35:292
301537499331,30cyclictest0-21swapper/208:20:192
3015371993327,3cyclictest0-21swapper/110:20:011
3015374993223,6cyclictest3063416-21sshd11:46:552
3015374993222,7cyclictest0-21swapper/208:40:282
3015374993222,6cyclictest0-21swapper/210:50:212
3015374993222,4cyclictest0-21swapper/207:40:242
3015374993218,7cyclictest0-21swapper/210:45:012
301537499321,27cyclictest0-21swapper/211:05:182
3015374993212,4cyclictest832-21systemd-network08:17:132
3015371993224,5cyclictest0-21swapper/110:55:211
3015374993124,4cyclictest3013633-21kworker/u8:1-events_power_efficient07:45:292
3015374993122,6cyclictest0-21swapper/209:25:292
3015374993122,4cyclictest0-21swapper/207:30:162
3015374993121,7cyclictest0-21swapper/207:55:282
3015374993117,7cyclictest0-21swapper/210:00:112
3015374993117,10cyclictest311ktimers/212:25:102
301537499311,25cyclictest0-21swapper/209:50:112
3015374993112,4cyclictest8321systemd-network11:54:262
3015374993112,4cyclictest8321systemd-network11:54:262
3015371993123,5cyclictest231ktimers/109:25:191
3015371993120,7cyclictest231ktimers/110:10:161
3015374993022,6cyclictest3037191-21/usr/sbin/munin09:15:292
3015371993021,4cyclictest0-21swapper/107:30:011
301537199301,4cyclictest0-21swapper/108:55:011
301537199301,4cyclictest0-21swapper/107:25:011
301537199301,4cyclictest0-21swapper/107:25:011
3015374992920,5cyclictest47-21kauditd12:20:002
3015374992919,6cyclictest0-21swapper/208:35:022
3015371992922,4cyclictest0-21swapper/110:50:281
301537199291,26cyclictest0-21swapper/111:54:071
301537199291,26cyclictest0-21swapper/111:54:071
301537199291,26cyclictest0-21swapper/111:20:251
3015374992820,5cyclictest311ktimers/211:15:132
3015371992822,4cyclictest0-21swapper/108:00:221
3015371992821,4cyclictest0-21swapper/111:25:291
301537099283,5cyclictest0-21swapper/007:10:000
3015374992716,8cyclictest0-21swapper/209:35:242
3015371992719,6cyclictest0-21swapper/110:35:171
3015374992618,6cyclictest0-21swapper/209:15:012
3015374992614,7cyclictest311ktimers/207:25:122
3015371992621,3cyclictest0-21swapper/107:40:461
3015371992619,5cyclictest231ktimers/107:55:161
3015371992519,3cyclictest0-21swapper/111:15:261
301537199217,10cyclictest0-21swapper/107:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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