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2026-08-22 - 05:48

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack7slot3s.osadl.org (updated Sat Aug 22, 2026 00:43:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30277991623,139cyclictest0-21swapper/021:50:410
30277991604,126cyclictest8761-21apt-config21:10:090
30277991592,127cyclictest5202-21latency_hist21:45:110
30277991592,127cyclictest5202-21latency_hist21:45:110
30277991512,142cyclictest0-21swapper/021:20:300
30277991512,142cyclictest0-21swapper/021:20:300
30277991392,104cyclictest11758-21/usr/sbin/munin23:10:340
30277991322,106cyclictest0-21swapper/022:00:270
30277991312,107cyclictest16164-21cat23:15:370
30277991303,106cyclictest0-21swapper/021:10:110
30277991262,103cyclictest5441-21ssh21:45:130
30277991244,99cyclictest0-21swapper/021:25:250
30277991243,97cyclictest21006-21grep00:00:390
30277991242,58cyclictest7950irq/56-dwc_otg_23:45:200
30277991223,84cyclictest0-21swapper/023:30:230
30277991203,94cyclictest31516-21rm21:36:300
30277991143,90cyclictest0-21swapper/023:55:240
30277991072,82cyclictest12771-21ssh23:50:410
30277991072,82cyclictest12771-21ssh23:50:410
30279991062,74cyclictest9611-21/usr/sbin/munin21:50:402
1352121050,8sleep33028099cyclictest00:30:383
30279991047,74cyclictest5761-21sh21:45:252
302789910238,31cyclictest18089-21netstat21:20:311
302789910238,31cyclictest18089-21netstat21:20:311
30279991013,80cyclictest0-21swapper/221:20:352
30279991013,80cyclictest0-21swapper/221:20:352
302789910032,25cyclictest10947-21ssh21:50:411
302789910030,23cyclictest8702-21apt-config21:10:081
3027999992,70cyclictest7850irq/56-dwc_otg_21:45:102
3027999992,70cyclictest7850irq/56-dwc_otg_21:45:102
3027999973,52cyclictest9846-21ntp_states21:10:312
30278999354,11cyclictest30382-21missed_timers21:35:311
3027799938,70cyclictest0-21swapper/019:25:220
3027999923,64cyclictest8924-21cat21:10:112
30277999210,68cyclictest14001-21/usr/sbin/munin21:15:330
3027999913,62cyclictest27401-21ssh23:30:232
70292870,3sleep13027899cyclictest21:46:011
3027999873,60cyclictest18293-21df_inode22:00:252
3027799872,6cyclictest5406-21fschecks_time19:30:260
3027999863,76cyclictest7302-21apt-get23:45:222
30279998633,48cyclictest12139-21netstat23:50:312
30279998633,48cyclictest12139-21netstat23:50:312
3027999862,77cyclictest15796-21/usr/sbin/munin23:55:252
3027999853,75cyclictest11776-21taskset23:10:342
3027999853,74cyclictest16146-21ssh23:15:372
30279998512,67cyclictest20989-21unixbench_multi00:00:392
3027799852,5cyclictest0-21swapper/023:05:080
3027899835,45cyclictest0-21swapper/121:10:321
3027799831,62cyclictest3139-21cat22:20:360
3027899823,43cyclictest0-21swapper/123:50:301
3027899823,43cyclictest0-21swapper/123:50:301
3027799821,6cyclictest23049-21sort22:45:260
3027799821,5cyclictest6988-21munin-run23:45:090
3027999813,71cyclictest30376-21ssh21:35:292
30278998128,26cyclictest15789-21ssh23:55:251
30278998126,29cyclictest5425-21sed21:45:111
3027799812,8cyclictest17778-21aten_rbpower_en20:05:230
3027799811,67cyclictest0-21swapper/019:20:210
3027899804,19cyclictest18318-21ssh22:00:271
30278998026,35cyclictest0-21swapper/100:00:401
3027799801,65cyclictest15670-21cron20:00:080
3027999792,70cyclictest21722-21ssh21:25:242
3027799792,66cyclictest0-21swapper/023:24:360
3027799792,5cyclictest0-21swapper/000:25:200
3027799781,8cyclictest0-21swapper/022:59:300
30277997812,53cyclictest13890-21idleruntime-cro19:55:080
3027799772,6cyclictest7678-21ps23:05:340
227752770,2sleep10-21swapper/122:05:301
227752770,2sleep10-21swapper/122:05:301
3027799761,67cyclictest0-21swapper/022:14:020
3027799752,3cyclictest0-21swapper/022:15:240
3027899744,16cyclictest0-21swapper/123:15:401
3027799741,6cyclictest0-21swapper/000:11:010
3027799741,63cyclictest0-21swapper/022:30:240
3027799741,5cyclictest2398-21rm23:39:200
30280997348,18cyclictest15808-21ssh23:55:263
30280997310,22cyclictest7850irq/56-dwc_otg_23:40:183
3027799738,51cyclictest30508-21aten_rbpower_cu20:40:230
3027799731,6cyclictest28426-21ssh22:51:030
3027799731,5cyclictest0-21swapper/000:39:360
30278997212,34cyclictest5234-21latency_hist21:45:091
3027799716,54cyclictest15511-21ssh21:56:170
3027799716,50cyclictest13832-21sh00:31:110
3027799711,62cyclictest9548-21ssh22:29:220
3027799711,53cyclictest27160-21rm00:09:140
3027799711,53cyclictest27160-21rm00:09:140
30277997110,52cyclictest994-1kworker/u9:100:16:120
30277997110,45cyclictest23335-21aten_rbpower_en23:25:210
3027899703,13cyclictest0-21swapper/123:10:341
3027799707,59cyclictest0-21swapper/020:00:270
3027799704,9cyclictest25656-21ssh21:30:240
3027799702,4cyclictest0-21swapper/022:40:090
3027799701,3cyclictest0-21swapper/020:45:350
3028099699,43cyclictest520-21rs:main3
3027799692,5cyclictest0-21swapper/021:04:200
30277996910,49cyclictest28846-21/usr/sbin/munin20:35:210
30280996817,28cyclictest10219-21timerwakeupswit21:10:373
30278996815,26cyclictest7750irq/56-dwc_otg21:25:241
3027799681,47cyclictest25623-21ssh22:09:370
3027799681,47cyclictest25623-21ssh22:09:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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