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2026-06-07 - 17:16

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 Sun Jun 07, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
300230399108100,5cyclictest131ktimers/009:05:000
3002306999411,9cyclictest3055257-21apt-get12:20:022
3002304999225,23cyclictest24-21ksoftirqd/108:45:181
3002309998415,46cyclictest3003127-21munin-node07:15:013
3002309998415,46cyclictest3003127-21munin-node07:15:013
300230399781,73cyclictest0-21swapper/010:35:110
3002303997251,13cyclictest131ktimers/009:20:090
3002303997251,13cyclictest131ktimers/009:20:090
3002306996728,5cyclictest0-21swapper/212:25:272
3002306996711,21cyclictest0-21swapper/208:55:002
3002303996513,17cyclictest15-21rcuc/012:10:010
300230399641,39cyclictest0-21swapper/010:00:010
3002306996332,26cyclictest0-21swapper/210:35:012
3002306996127,6cyclictest3013502-21grep08:10:282
3002303996151,6cyclictest167350irq/118-8000000.ethernet-tx008:30:010
3002304995820,11cyclictest22-21rcuc/107:35:011
300230399569,10cyclictest23850irq/422-mmc107:20:020
300230399562,49cyclictest3044212-21unixbench_singl11:10:300
3002304995418,7cyclictest3037344-21apt-get10:35:011
300230399547,13cyclictest14-21rcu_preempt07:10:000
3002303995240,7cyclictest3046141-21cat11:25:010
3002303995143,5cyclictest3027221-21munin-plugin-st09:35:000
3002306995036,9cyclictest0-21swapper/211:09:592
3002304995043,4cyclictest24-21ksoftirqd/110:15:191
3002304995043,4cyclictest24-21ksoftirqd/110:15:181
3002303995033,8cyclictest0-21swapper/009:20:010
3002303995023,23cyclictest3008553-21latency_hist07:45:010
3002304994943,4cyclictest0-21swapper/109:00:011
300230399495,41cyclictest0-21swapper/008:55:170
3002303994938,6cyclictest20650irq/252-8000000.ethernet08:10:020
3002303994935,10cyclictest3051880-21sendmail12:00:010
3002303994911,34cyclictest0-21swapper/008:20:280
3002304994838,5cyclictest0-21swapper/109:25:011
3002304994838,5cyclictest0-21swapper/109:25:001
3002304994835,8cyclictest900-21dropbear12:35:281
3002304994831,11cyclictest3032898-21ptp4l10:05:271
3002304994822,22cyclictest0-21swapper/111:40:011
300230399483,39cyclictest0-21swapper/008:10:280
3002303994830,15cyclictest167350irq/118-8000000.ethernet-tx007:25:220
3002303994828,14cyclictest131ktimers/009:50:120
3002306994735,7cyclictest3007504-21grep07:35:292
3002303994727,17cyclictest3009354-21cat07:50:000
3002303994637,5cyclictest0-21swapper/010:00:140
3002303994629,14cyclictest167350irq/118-8000000.ethernet-tx007:50:230
300230399462,4cyclictest3040363-21fschecks_time10:50:210
300230399461,40cyclictest0-21swapper/010:35:010
300230499454,15cyclictest24-21ksoftirqd/112:30:021
3002304994526,11cyclictest0-21swapper/110:00:281
3002303994539,3cyclictest0-21swapper/011:35:150
3002303994537,4cyclictest20650irq/252-8000000.ethernet07:55:270
300230399453,39cyclictest0-21swapper/007:30:100
3002306994437,4cyclictest3048500-21latency_hist11:40:002
3002306994436,5cyclictest311ktimers/210:15:012
300230499449,15cyclictest24-21ksoftirqd/108:15:001
3002304994431,8cyclictest0-21swapper/112:19:591
3002303994437,4cyclictest167350irq/118-8000000.ethernet-tx011:30:150
300230399441,40cyclictest0-21swapper/011:00:180
300230399441,39cyclictest3035482-21find10:20:290
3002306994332,7cyclictest3051778-21grep11:55:292
3002306994326,12cyclictest311ktimers/210:05:122
300230499438,13cyclictest24-21ksoftirqd/110:25:011
3002304994330,9cyclictest1283-21cron12:30:001
3002304994330,7cyclictest3008408-21unixbench_singl07:40:291
3002304994321,14cyclictest0-21swapper/111:20:261
3002304994319,13cyclictest231ktimers/111:15:151
300230399434,4cyclictest0-21swapper/012:20:000
3002303994337,3cyclictest20650irq/252-8000000.ethernet09:05:130
3002303994330,9cyclictest0-21swapper/010:30:010
300230399431,36cyclictest0-21swapper/010:50:000
3002306994235,4cyclictest3047657-21munin-plugin-st11:35:012
3002306994234,5cyclictest3051034-21munin-plugin-st11:55:002
3002304994230,7cyclictest0-21swapper/110:24:591
300230499421,18cyclictest24-21ksoftirqd/108:35:001
3002303994235,4cyclictest20650irq/252-8000000.ethernet12:20:160
3002303994235,4cyclictest20650irq/252-8000000.ethernet10:40:160
3002303994234,5cyclictest0-21swapper/011:20:010
3002303994234,4cyclictest20650irq/252-8000000.ethernet11:05:190
3002303994233,5cyclictest3019068-21fschecks_count08:45:190
3002303994233,5cyclictest167350irq/118-8000000.ethernet-tx008:30:160
300230399422,4cyclictest3028345-21df_inode09:40:170
3002306994125,10cyclictest0-21swapper/209:20:272
3002306994125,10cyclictest0-21swapper/209:20:262
3002303994136,3cyclictest0-21swapper/012:10:280
3002303994135,3cyclictest167350irq/118-8000000.ethernet-tx012:30:150
3002303994135,3cyclictest0-21swapper/009:50:000
3002303994134,4cyclictest20650irq/252-8000000.ethernet10:10:000
3002303994134,4cyclictest20650irq/252-8000000.ethernet08:35:170
3002303994131,5cyclictest3020134-21/usr/sbin/munin08:50:260
3002303994130,7cyclictest3007143-21sh07:35:210
3002303994129,8cyclictest0-21swapper/008:40:180
300230399412,4cyclictest3033629-21meminfo10:10:210
3002303994114,24cyclictest3026323-21grep09:25:270
300230399411,38cyclictest0-21swapper/011:45:210
3002306994027,8cyclictest0-21swapper/211:45:202
3002306994025,10cyclictest0-21swapper/208:25:212
300230499403,3cyclictest0-21swapper/107:50:021
3002304994027,8cyclictest3006712-21grep07:30:281
3002304994026,9cyclictest0-21swapper/112:20:271
3002304994024,11cyclictest231ktimers/108:50:111
3002304994021,10cyclictest0-21swapper/111:50:271
3002303994033,4cyclictest20650irq/252-8000000.ethernet09:35:120
3002303994033,4cyclictest20650irq/252-8000000.ethernet09:35:120
3002303994033,4cyclictest20650irq/252-8000000.ethernet09:10:220
3002303994033,4cyclictest167350irq/118-8000000.ethernet-tx011:50:300
3002303994021,13cyclictest131ktimers/011:40:110
3002303994021,13cyclictest131ktimers/011:40:100
3002306993926,9cyclictest0-21swapper/209:15:282
3002306993923,8cyclictest0-21swapper/210:50:272
3002306993915,17cyclictest3002467-21/usr/sbin/munin07:10:192
3002306993915,17cyclictest3002467-21/usr/sbin/munin07:10:192
3002304993929,5cyclictest0-21swapper/110:00:001
3002304993929,5cyclictest0-21swapper/107:15:011
3002304993929,5cyclictest0-21swapper/107:15:001
3002304993921,10cyclictest0-21swapper/111:10:261
3002303993929,7cyclictest0-21swapper/012:05:000
300230399392,4cyclictest3011876-21latency_hist08:05:010
300230399391,36cyclictest0-21swapper/012:35:170
300230399391,35cyclictest3041079-21df_inode10:55:170
3002306993826,7cyclictest3019565-21grep08:45:282
3002306993824,11cyclictest311ktimers/208:35:142
3002304993832,4cyclictest0-21swapper/108:25:011
3002304993817,15cyclictest3028064-21sendmail09:40:001
3002304993817,15cyclictest3028064-21sendmail09:40:001
3002304993813,8cyclictest24-21ksoftirqd/109:50:011
3002303993831,4cyclictest0-21swapper/008:15:180
300230399381,3cyclictest0-21swapper/007:10:240
300230399381,3cyclictest0-21swapper/007:10:240
300230399381,35cyclictest3046180-21dpkg11:25:100
3002306993727,5cyclictest1261-21rs:main2
3002306993724,8cyclictest311ktimers/208:40:122
3002304993726,7cyclictest0-21swapper/109:15:291
3002304993722,6cyclictest0-21swapper/111:40:161
3002304993722,6cyclictest0-21swapper/111:40:161
300230499372,21cyclictest24-21ksoftirqd/107:25:011
3002304993720,4cyclictest3037344-21apt-get10:35:021
3002304993715,10cyclictest0-21swapper/111:00:111
300230499371,2cyclictest0-21swapper/111:30:011
3002304993712,12cyclictest0-21swapper/111:45:151
3002303993731,3cyclictest20650irq/252-8000000.ethernet10:15:160
3002303993731,3cyclictest20650irq/252-8000000.ethernet10:15:160
3002303993730,3cyclictest3056906-21mailstats12:25:270
300230699369,13cyclictest3045338-21/usr/sbin/munin11:20:202
3002306993629,4cyclictest3023004-21munin-plugin-st09:10:002
3002306993627,6cyclictest3053513-21grep12:05:302
3002306993627,5cyclictest0-21swapper/208:35:012
300230499369,14cyclictest3027089-21/usr/sbin/munin09:30:281
300230499366,6cyclictest0-21swapper/108:10:011
300230499365,3cyclictest0-21swapper/110:55:021
3002304993629,4cyclictest231ktimers/107:27:361
3002304993628,6cyclictest231ktimers/108:15:201
3002304993624,6cyclictest3011208-21/usr/sbin/munin08:00:321
300230499361,2cyclictest0-21swapper/108:25:011
3002303993629,4cyclictest3004752-21memory07:20:240
3002306993526,4cyclictest0-21swapper/210:20:262
3002306993525,6cyclictest3026282-21grep09:25:272
3002306993525,5cyclictest0-21swapper/207:20:272
3002306993521,11cyclictest311ktimers/211:25:142
3002306993521,11cyclictest311ktimers/210:40:152
3002304993530,3cyclictest3004234-21sh07:19:591
3002304993526,6cyclictest231ktimers/109:25:211
3002304993524,6cyclictest0-21swapper/109:10:281
3002304993518,9cyclictest0-21swapper/107:50:221
3002306993427,4cyclictest3022055-21grep09:00:272
3002306993425,5cyclictest0-21swapper/207:55:282
3002306993421,9cyclictest0-21swapper/208:55:262
300230499347,15cyclictest0-21swapper/110:40:011
3002304993425,6cyclictest231ktimers/112:05:251
3002304993424,6cyclictest0-21swapper/108:35:291
3002304993423,6cyclictest0-21swapper/107:55:281
300230499341,27cyclictest3047073-21ssh11:30:161
3002306993325,5cyclictest3038226-21grep10:35:302
3002306993325,4cyclictest0-21swapper/210:45:282
3002306993323,7cyclictest274-21systemd-journal07:19:592
3002306993323,6cyclictest0-21swapper/212:00:292
3002306993323,5cyclictest3044191-21grep11:10:292
3002306993323,5cyclictest3009244-21grep07:45:282
300230699332,28cyclictest3029737-21sshd09:47:352
3002306993321,6cyclictest0-21swapper/210:55:252
300230699331,10cyclictest0-21swapper/212:15:022
3002304993325,5cyclictest231ktimers/110:10:201
3002304993323,6cyclictest1653-21lldpd11:05:261
300230499332,26cyclictest24-21ksoftirqd/112:10:261
3002306993223,5cyclictest0-21swapper/211:05:012
3002306993222,6cyclictest3034772-21grep10:15:282
3002306993222,6cyclictest3034772-21grep10:15:282
3002306993220,9cyclictest3011852-21munin-plugin-st08:05:002
3002306993219,8cyclictest0-21swapper/208:15:222
3002304993226,4cyclictest231ktimers/108:45:021
3002304993224,5cyclictest0-21swapper/111:55:291
300230499321,25cyclictest0-21swapper/109:06:351
3002306993122,7cyclictest0-21swapper/212:30:202
3002306993122,5cyclictest0-21swapper/209:35:212
3002306993122,5cyclictest0-21swapper/209:35:212
3002306993119,8cyclictest0-21swapper/211:15:262
3002306993118,8cyclictest3058713-21cron12:40:002
3002306993115,10cyclictest0-21swapper/212:20:192
3002304993123,5cyclictest3021595-21/usr/sbin/munin09:00:171
300230699302,26cyclictest0-21swapper/209:40:272
3002306993019,5cyclictest0-21swapper/208:20:292
3002304993022,6cyclictest231ktimers/110:55:181
3002304993020,7cyclictest231ktimers/109:55:011
3002304993020,6cyclictest0-21swapper/110:45:211
3002304993017,10cyclictest3028276-21/usr/sbin/munin09:40:291
3002306992920,4cyclictest0-21swapper/207:45:022
3002306992916,9cyclictest3036513-21dropbear10:30:002
300230699291,25cyclictest0-21swapper/207:25:282
3002304992918,6cyclictest231ktimers/112:05:001
3002306992816,8cyclictest0-21swapper/209:50:292
3002306992718,4cyclictest0-21swapper/209:30:192
3002306992717,7cyclictest1660-21snmpd11:44:112
3002306992717,7cyclictest1660-21snmpd11:44:112
3002304992719,5cyclictest231ktimers/107:10:021
3002306992616,6cyclictest0-21swapper/207:55:012
3002306992518,4cyclictest3012597-21unixbench_multi08:05:292
3002306992515,5cyclictest0-21swapper/210:00:022
300230699243,14cyclictest3006771-21cut07:35:002
3002306992410,8cyclictest0-21swapper/209:10:282
300230699228,7cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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