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2026-04-16 - 14:29

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 Thu Apr 16, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278618399966,2cyclictest0-21swapper/000:00:010
278618399942,2cyclictest0-21swapper/023:20:020
2786183998985,2cyclictest0-21swapper/023:25:180
278618399882,8cyclictest2808499-21grep21:15:280
278618399831,2cyclictest0-21swapper/019:30:010
2786183998117,55cyclictest0-21swapper/021:45:200
2786183998044,31cyclictest0-21swapper/022:50:000
278618399773,6cyclictest0-21swapper/022:45:010
278618399761,2cyclictest0-21swapper/023:55:000
278618399751,66cyclictest2803690-21/usr/sbin/munin20:50:180
2786183997233,34cyclictest0-21swapper/019:40:280
278618399712,5cyclictest2805754-21/usr/sbin/munin21:00:280
278618399712,4cyclictest2788115-21cron19:20:000
278618399711,63cyclictest0-21swapper/023:20:140
2786183997039,25cyclictest19750irq/27-20000000.i2c20:25:190
2786183997039,25cyclictest19750irq/27-20000000.i2c20:25:190
278618399702,3cyclictest2809389-21users21:20:290
278618399701,3cyclictest0-21swapper/019:10:130
2786183996937,27cyclictest20850irq/208-8000000.ethernet21:00:000
278618399691,5cyclictest2813832-21/usr/sbin/munin21:50:090
278618399683,4cyclictest2811559-21irqstats21:35:220
278618399682,61cyclictest2795270-21tune2fs20:00:180
278618399681,61cyclictest2820383-21cron22:30:000
278618399681,60cyclictest2794592-21/usr/sbin/munin19:55:230
278618399681,60cyclictest0-21swapper/023:00:140
278618399671,60cyclictest0-21swapper/000:05:140
278618399671,59cyclictest0-21swapper/000:30:140
278618399661,4cyclictest2824314-21irqstats22:50:200
278618399653,5cyclictest2798238-21sed20:15:280
2786183996525,35cyclictest0-21swapper/021:30:280
2786183996525,34cyclictest0-21swapper/023:10:210
278618399651,61cyclictest0-21swapper/022:55:160
278618399651,4cyclictest2809916-21meminfo21:25:230
278618399651,31cyclictest0-21swapper/020:40:100
278618399642,3cyclictest2799192-21munin-run20:25:010
2786183996317,6cyclictest0-21swapper/023:35:240
278618399631,59cyclictest0-21swapper/020:30:140
278618399631,56cyclictest0-21swapper/000:15:050
278618399631,55cyclictest0-21swapper/020:05:130
278618399631,4cyclictest2837956-21memory00:10:240
278618399631,31cyclictest1660-21snmpd21:09:120
278618899625,22cyclictest30-21rcuc/223:30:012
278618399621,6cyclictest2815708-21lsblk22:00:190
278618399621,59cyclictest0-21swapper/019:30:110
278618399621,59cyclictest0-21swapper/000:35:250
278618399621,59cyclictest0-21swapper/000:35:250
278618399621,59cyclictest0-21swapper/000:20:190
2786183996138,18cyclictest167350irq/118-8000000.ethernet-tx021:10:280
2786183996116,7cyclictest0-21swapper/019:40:020
278618399611,4cyclictest2831540-21munin-run23:35:010
278618399611,32cyclictest0-21swapper/019:45:140
278618399611,32cyclictest0-21swapper/019:45:140
278618399611,31cyclictest0-21swapper/020:35:290
278618399611,2cyclictest0-21swapper/022:10:000
278618399602,5cyclictest2820644-21df22:30:180
278618399602,56cyclictest0-21swapper/022:20:230
278618399602,56cyclictest0-21swapper/022:20:230
278618399601,56cyclictest2840406-21lsblk00:25:180
278618399591,55cyclictest0-21swapper/022:35:290
278618399591,55cyclictest0-21swapper/022:10:130
278618399591,53cyclictest0-21swapper/023:05:110
278618399591,32cyclictest0-21swapper/023:45:270
278618399591,2cyclictest0-21swapper/021:40:190
278618399591,2cyclictest0-21swapper/021:40:180
2786183995825,4cyclictest0-21swapper/020:10:240
278618399571,2cyclictest0-21swapper/022:15:250
278618399561,32cyclictest0-21swapper/021:55:130
278618399561,31cyclictest0-21swapper/019:22:420
278618399551,52cyclictest0-21swapper/023:40:150
2786188995410,25cyclictest311ktimers/221:45:012
2786188995410,25cyclictest311ktimers/221:45:012
278618399541,51cyclictest0-21swapper/000:00:160
278618399541,31cyclictest0-21swapper/019:50:100
2786185995244,5cyclictest2823856-21munin-plugin-st22:50:001
278618599517,15cyclictest22-21rcuc/122:00:011
278618599515,16cyclictest22-21rcuc/119:15:001
2786185995143,5cyclictest2805093-21sendmail21:00:011
278618599492,19cyclictest2820588-21/usr/sbin/munin22:30:211
278618599482,16cyclictest24-21ksoftirqd/120:30:011
278618399471,44cyclictest0-21swapper/020:45:160
2786185994640,4cyclictest0-21swapper/120:40:181
2786185994635,6cyclictest0-21swapper/123:05:291
278618599462,34cyclictest2824894-21/usr/sbin/munin22:55:271
2786185994537,6cyclictest22-21rcuc/122:10:001
2786185994530,8cyclictest0-21swapper/122:10:271
2786188994436,4cyclictest0-21swapper/223:40:162
2786188994436,4cyclictest0-21swapper/220:00:012
2786188994435,5cyclictest2824644-21grep22:50:272
2786188994426,13cyclictest0-21swapper/223:05:252
2786185994433,7cyclictest2797437-21grep20:10:291
2786188994323,14cyclictest311ktimers/200:00:092
2786185994332,7cyclictest2815226-21grep21:55:281
2786185994329,9cyclictest0-21swapper/100:00:201
2786188994232,6cyclictest2819473-21grep22:20:272
2786188994232,6cyclictest2819473-21grep22:20:272
2786188994226,12cyclictest311ktimers/222:25:092
2786185994232,7cyclictest231ktimers/100:20:111
2786185994228,9cyclictest0-21swapper/121:25:271
2786185994130,7cyclictest0-21swapper/122:15:291
2786185994119,11cyclictest0-21swapper/122:35:131
2786185994118,11cyclictest0-21swapper/119:55:101
2786188994025,10cyclictest0-21swapper/223:35:192
2786185994034,4cyclictest0-21swapper/120:45:101
2786185994032,4cyclictest2838293-21munin-plugin-st00:15:001
2786185994030,6cyclictest0-21swapper/121:10:271
2786185994029,7cyclictest2811829-21grep21:35:281
2786185994029,6cyclictest2813520-21grep21:45:271
2786185994024,9cyclictest0-21swapper/100:35:271
2786185994024,9cyclictest0-21swapper/100:35:271
2786185994022,11cyclictest2825756-21apt-get23:00:171
2786185994016,10cyclictest231ktimers/123:30:141
2786185994014,13cyclictest0-21swapper/120:00:131
2786185994012,12cyclictest0-21swapper/122:50:121
2786188993930,5cyclictest0-21swapper/220:10:282
2786188993927,8cyclictest0-21swapper/219:25:002
2786188993922,12cyclictest0-21swapper/222:30:292
2786188993915,13cyclictest311ktimers/222:45:122
2786188993911,19cyclictest2798552-21/usr/sbin/munin20:20:182
2786185993929,5cyclictest0-21swapper/121:00:281
2786185993929,5cyclictest0-21swapper/119:50:271
2786185993928,8cyclictest2798337-21munin-run20:20:011
2786185993927,5cyclictest0-21swapper/122:30:011
2786185993916,11cyclictest0-21swapper/119:40:121
2786188993830,5cyclictest167550irq/134-8000000.ethernet-tx222:41:172
2786188993826,8cyclictest0-21swapper/219:45:282
2786188993826,8cyclictest0-21swapper/219:45:282
2786188993820,12cyclictest311ktimers/219:10:122
2786185993829,4cyclictest167450irq/126-8000000.ethernet-tx100:08:141
278618599379,21cyclictest22-21rcuc/120:10:011
2786185993727,6cyclictest0-21swapper/120:35:281
2786185993725,8cyclictest0-21swapper/120:50:221
2786185993717,9cyclictest0-21swapper/123:20:131
2786185993714,10cyclictest231ktimers/123:10:121
2786188993627,4cyclictest2810244-21kworker/u8:0-events_freezable_power_22:00:272
2786188993625,7cyclictest2814371-21grep21:50:252
2786188993624,9cyclictest2829220-21/usr/sbin/munin23:20:212
2786188993624,8cyclictest30-21rcuc/219:40:202
2786188993623,8cyclictest30-21rcuc/220:45:122
2786188993623,8cyclictest0-21swapper/200:35:212
2786188993623,8cyclictest0-21swapper/200:35:212
278618599367,24cyclictest0-21swapper/100:30:261
2786185993628,6cyclictest231ktimers/121:30:201
2786185993627,5cyclictest0-21swapper/119:30:021
2786185993625,7cyclictest2812694-21grep21:40:271
2786185993625,7cyclictest2812694-21grep21:40:271
2786185993624,8cyclictest0-21swapper/123:15:281
2786185993623,6cyclictest0-21swapper/123:55:011
2786185993622,10cyclictest231ktimers/123:35:111
2786188993527,4cyclictest0-21swapper/221:10:272
2786185993528,5cyclictest231ktimers/123:55:261
2786185993520,6cyclictest0-21swapper/119:45:151
2786185993520,6cyclictest0-21swapper/119:45:151
2786185993518,11cyclictest2799965-21grep20:25:281
2786185993518,11cyclictest2799965-21grep20:25:281
2786185993517,12cyclictest0-21swapper/121:15:111
278618599351,28cyclictest0-21swapper/119:35:201
2786188993428,4cyclictest167550irq/134-8000000.ethernet-tx219:25:132
2786188993417,13cyclictest311ktimers/200:25:112
2786185993427,5cyclictest231ktimers/119:10:011
2786185993426,4cyclictest0-21swapper/119:15:271
2786185993425,7cyclictest231ktimers/122:20:121
2786185993425,7cyclictest231ktimers/122:20:121
2786185993424,4cyclictest0-21swapper/100:25:181
2786185993421,8cyclictest0-21swapper/122:40:181
2786185993417,13cyclictest231ktimers/121:50:111
2786185993417,11cyclictest2833441-21sshd23:45:141
2786188993327,3cyclictest0-21swapper/223:20:002
2786188993325,5cyclictest14-21rcu_preempt00:20:262
2786188993325,5cyclictest0-21swapper/219:15:292
2786188993325,4cyclictest0-21swapper/222:35:282
2786188993323,7cyclictest0-21swapper/220:05:282
2786188993323,5cyclictest0-21swapper/221:30:182
2786188993323,5cyclictest0-21swapper/200:05:262
2786188993322,7cyclictest30-21rcuc/221:55:142
2786188993320,9cyclictest2805894-21unixbench_singl21:00:282
2786188993320,10cyclictest0-21swapper/221:45:252
278618899331,26cyclictest0-21swapper/222:10:162
2786185993326,5cyclictest231ktimers/100:15:231
2786185993321,5cyclictest0-21swapper/123:25:181
2786185993319,4cyclictest0-21swapper/120:20:191
278618899324,5cyclictest27861781cyclictest21:15:112
2786188993228,2cyclictest0-21swapper/223:55:272
2786188993224,5cyclictest0-21swapper/220:30:292
2786188993223,5cyclictest0-21swapper/221:05:292
2786188993223,5cyclictest0-21swapper/200:30:302
2786188993222,6cyclictest0-21swapper/219:50:282
2786188993220,7cyclictest311ktimers/221:25:112
2786188993220,7cyclictest0-21swapper/223:00:282
278618599321,7cyclictest0-21swapper/119:35:011
278618599321,26cyclictest0-21swapper/123:40:231
2786188993124,4cyclictest2801674-21unixbench_singl20:35:292
278618899311,28cyclictest16501lldpd00:14:162
2786185993123,4cyclictest231ktimers/121:05:181
2786185993121,6cyclictest231ktimers/121:20:181
2786188993024,4cyclictest167550irq/134-8000000.ethernet-tx223:50:142
2786188993021,6cyclictest30-21rcuc/220:55:252
2786188993021,6cyclictest2827966-21grep23:10:272
2786188993018,8cyclictest0-21swapper/221:20:302
2786188993012,4cyclictest8321systemd-network20:04:292
2786188992924,3cyclictest2818694-21sendmail22:20:002
2786188992923,4cyclictest2791577-21cron19:40:002
2786188992923,4cyclictest0-21swapper/221:35:162
2786188992922,4cyclictest0-21swapper/220:40:282
2786188992922,4cyclictest0-21swapper/220:25:252
2786188992922,4cyclictest0-21swapper/220:25:252
2786188992921,4cyclictest0-21swapper/222:05:272
278618899291,26cyclictest0-21swapper/223:30:172
278618899291,26cyclictest0-21swapper/200:15:142
2786185992918,5cyclictest231ktimers/119:20:191
278618899281,22cyclictest0-21swapper/220:50:102
278618899275,17cyclictest32-21ksoftirqd/219:30:122
2786188992717,7cyclictest30-21rcuc/220:15:122
278618899271,11cyclictest8321systemd-network22:57:592
2786188992616,5cyclictest0-21swapper/219:10:022
278618899261,23cyclictest0-21swapper/223:48:152
2786183992413,4cyclictest23850irq/422-mmc119:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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