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2026-06-27 - 02:15

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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 rack4slot1s.osadl.org (updated Sat Jun 27, 2026 00:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1460521150,3chrt0-21swapper/220:03:242
1460521150,3chrt0-21swapper/220:03:242
1460521150,3chrt0-21swapper/220:03:242
1391421060,2chrt13913-21users22:53:281
1391421060,2chrt13913-21users22:53:281
1391421060,2chrt13913-21users22:53:281
2319921040,4sleep30-21swapper/323:18:273
2319921040,4sleep30-21swapper/323:18:273
223272790,2chrt0-21swapper/223:18:182
223272790,2chrt0-21swapper/223:18:182
75092770,3sleep30-21swapper/322:38:193
75092770,3sleep30-21swapper/322:38:193
75092770,3sleep30-21swapper/322:38:193
286172720,2sleep30-21swapper/323:33:273
286172720,2sleep30-21swapper/323:33:273
305012710,3sleep20-21swapper/220:48:112
305012710,3sleep20-21swapper/220:48:112
141742710,3sleep20-21swapper/221:28:272
141742710,3sleep20-21swapper/221:28:272
141742710,3sleep20-21swapper/221:28:272
121452700,4sleep30-21swapper/319:58:193
121452700,4sleep30-21swapper/319:58:193
178342680,3sleep20-21swapper/220:13:182
178342680,3sleep20-21swapper/220:13:182
76582650,1sleep2351rcuc/200:03:282
76582650,1sleep2351rcuc/200:03:282
76582650,1sleep2351rcuc/200:03:282
323892630,3chrt0-21swapper/023:43:240
323892630,3chrt0-21swapper/023:43:240
323892630,3chrt0-21swapper/023:43:240
27773995944,10cyclictest0-21swapper/000:03:210
27773995944,10cyclictest0-21swapper/000:03:210
27773995944,10cyclictest0-21swapper/000:03:210
12022590,3sleep30-21swapper/323:48:183
12022590,3sleep30-21swapper/323:48:183
12022590,3sleep30-21swapper/323:48:183
208642570,3sleep20-21swapper/223:13:232
208642570,3sleep20-21swapper/223:13:232
142792570,1chrt13806-21/usr/sbin/munin20:03:180
142792570,1chrt13806-21/usr/sbin/munin20:03:180
142792570,1chrt13806-21/usr/sbin/munin20:03:180
191202550,3sleep20-21swapper/200:35:322
191202550,3sleep20-21swapper/200:35:322
191202550,3sleep20-21swapper/200:35:322
299382530,1chrt29935-21interrupts23:38:191
299382530,1chrt29935-21interrupts23:38:191
197262520,1chrt0-21swapper/020:18:180
151342520,3sleep00-21swapper/021:33:150
151342520,3sleep00-21swapper/021:33:150
151342520,3sleep00-21swapper/021:33:150
27773995144,4cyclictest0-21swapper/000:03:110
27773995144,4cyclictest0-21swapper/000:03:110
27773995144,4cyclictest0-21swapper/000:03:110
45052500,4sleep20-21swapper/222:28:292
45052500,4sleep20-21swapper/222:28:292
45052500,4sleep20-21swapper/222:28:292
27775994939,8cyclictest700-21192.168.115.40-manager00:39:341
27775994939,8cyclictest700-21192.168.115.40-manager00:39:341
27775994939,8cyclictest700-21192.168.115.40-manager00:39:341
27775994820,16cyclictest4124-21seq19:37:501
27775994820,16cyclictest4124-21seq19:37:501
186352470,2sleep30-21swapper/320:13:263
186352470,2sleep30-21swapper/320:13:263
126792470,4sleep20-21swapper/219:58:262
126792470,4sleep20-21swapper/219:58:262
124532470,2sleep012472-21latency_hist22:53:080
124532470,2sleep012472-21latency_hist22:53:080
124532470,2sleep012472-21latency_hist22:53:080
27775994620,16cyclictest4212-21seq23:57:111
27775994620,16cyclictest4212-21seq23:57:111
27775994620,16cyclictest4212-21seq23:57:111
27775994617,17cyclictest31342-21seq22:13:391
27775994617,17cyclictest31342-21seq22:13:391
27775994617,17cyclictest31342-21seq22:13:391
263882460,3sleep20-21swapper/222:03:162
263882460,3sleep20-21swapper/222:03:162
263882460,3sleep20-21swapper/222:03:162
241592460,1sleep00-21swapper/020:28:270
241592460,1sleep00-21swapper/020:28:270
55432450,3sleep20-21swapper/223:58:262
55432450,3sleep20-21swapper/223:58:262
55432450,3sleep20-21swapper/223:58:262
27775994538,4cyclictest700-21192.168.115.40-manager21:46:291
27775994538,4cyclictest700-21192.168.115.40-manager21:46:291
27775994538,4cyclictest700-21192.168.115.40-manager21:46:291
27775994519,16cyclictest21525-21taskset23:15:091
27775994519,16cyclictest21525-21taskset23:15:091
27775994332,9cyclictest700-21192.168.115.40-manager21:19:371
27775994332,9cyclictest700-21192.168.115.40-manager21:19:371
27775994332,9cyclictest700-21192.168.115.40-manager21:19:371
27775994331,9cyclictest700-21192.168.115.40-manager00:07:261
27775994331,9cyclictest700-21192.168.115.40-manager00:07:261
27775994331,9cyclictest700-21192.168.115.40-manager00:07:261
27775994319,9cyclictest27880-21seq22:07:041
27775994319,9cyclictest27880-21seq22:07:041
27775994319,9cyclictest27880-21seq22:07:041
27775994316,11cyclictest12572-21date22:53:141
27775994316,11cyclictest12572-21date22:53:141
27775994316,11cyclictest12572-21date22:53:141
27775994314,12cyclictest14175-21sensors_temp21:28:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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