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2025-06-24 - 18:06

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 Tue Jun 24, 2025 12:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
544321330,3sleep10-21swapper/108:36:301
544321330,3sleep10-21swapper/108:36:301
91942970,2sleep19193-21sed08:46:311
273312790,3sleep30-21swapper/312:26:223
273312790,3sleep30-21swapper/312:26:223
102952790,3chrt0-21swapper/311:41:283
102952790,3chrt0-21swapper/311:41:283
305852770,3sleep20-21swapper/208:16:332
305852770,3sleep20-21swapper/208:16:332
204132680,4chrt0-21swapper/307:51:263
204132680,4chrt0-21swapper/307:51:263
225062620,2sleep20-21swapper/212:11:382
225062620,2sleep20-21swapper/212:11:382
163742620,3sleep20-21swapper/209:06:262
163742620,3sleep20-21swapper/209:06:262
78502600,2sleep17961-21timerandwakeup08:41:381
71542580,1sleep3431rcuc/311:31:353
71542580,1sleep3431rcuc/311:31:353
99732570,1sleep10-21swapper/111:41:141
99732570,1sleep10-21swapper/111:41:141
55532570,3chrt5556-21grep10:01:401
55532570,3chrt5556-21grep10:01:401
137752560,3sleep20-21swapper/211:51:162
137752560,3sleep20-21swapper/211:51:162
294922550,3sleep20-21swapper/212:31:282
294922550,3sleep20-21swapper/212:31:282
294922550,3sleep20-21swapper/212:31:282
280922540,2sleep30-21swapper/311:01:363
280922540,2sleep30-21swapper/311:01:363
255602540,3sleep125564-21latency_hist09:31:131
255602540,3sleep125564-21latency_hist09:31:131
124792530,1sleep112555-21irqstats11:46:341
124792530,1sleep112555-21irqstats11:46:341
320712520,1sleep132248-21sed12:36:381
320712520,1sleep132248-21sed12:36:381
310962510,2sleep0171ktimers/008:16:390
310962510,2sleep0171ktimers/008:16:390
227742510,2sleep30-21swapper/307:56:323
530699506,27cyclictest85492sleep210:11:272
5304995026,16cyclictest55150irq/47-eth010:11:280
228722490,2chrt22875-21missed_timers07:56:330
178092490,3chrt0-21swapper/107:41:391
178092490,3chrt0-21swapper/107:41:391
147302490,2chrt271rcuc/109:01:311
147302490,2chrt271rcuc/109:01:311
209802460,4sleep20-21swapper/209:16:392
209802460,4sleep20-21swapper/209:16:392
20202460,2chrt0-21swapper/311:16:483
20202460,2chrt0-21swapper/311:16:483
246932410,3sleep30-21swapper/309:26:373
246932410,3sleep30-21swapper/309:26:373
260832400,3sleep20-21swapper/208:06:202
140272400,3sleep30-21swapper/310:26:153
140272400,3sleep30-21swapper/310:26:153
530799398,16cyclictest0-21swapper/310:11:273
262092390,3sleep10-21swapper/112:21:381
262092390,3sleep10-21swapper/112:21:381
5304993713,19cyclictest171ktimers/009:06:260
5304993713,19cyclictest171ktimers/009:06:260
530499361,28cyclictest27433-21seq11:01:290
530499361,28cyclictest27433-21seq11:01:290
272082360,1sleep127160-21latency_hist11:01:151
241162360,1sleep124228-21/usr/sbin/munin10:51:341
241162360,1sleep124228-21/usr/sbin/munin10:51:341
530499351,30cyclictest31467-21chrt09:46:280
530499351,30cyclictest31467-21chrt09:46:280
5304993510,21cyclictest171ktimers/011:21:290
5304993510,21cyclictest171ktimers/011:21:290
280762350,2sleep20-21swapper/211:01:352
280762350,2sleep20-21swapper/211:01:352
245302350,2sleep10-21swapper/112:16:401
245302350,2sleep10-21swapper/112:16:401
5305993327,4cyclictest5303-21cyclictest08:01:401
5305993326,5cyclictest480-21sshd09:56:351
5305993326,5cyclictest480-21sshd09:56:351
5304993328,4cyclictest11038-21gltestperf08:51:290
5304993328,4cyclictest11038-21gltestperf08:51:290
3182330,3sleep30-21swapper/312:41:143
3182330,3sleep30-21swapper/312:41:143
530699323,22cyclictest23488-21chrt12:16:282
530699323,22cyclictest23488-21chrt12:16:282
5304993226,4cyclictest19389-21sendmail_mailqu07:46:370
5304993226,4cyclictest19389-21sendmail_mailqu07:46:370
5304993225,5cyclictest24896-21switchtime09:26:390
5304993225,5cyclictest24896-21switchtime09:26:390
5306993115,14cyclictest11230-21chrt08:51:312
5306993115,14cyclictest11230-21chrt08:51:312
5305993127,3cyclictest31592-21wc08:21:131
5305993127,3cyclictest31592-21wc08:21:131
5305993124,5cyclictest16539-21latency_hist07:41:191
5305993124,5cyclictest16539-21latency_hist07:41:191
5304993126,3cyclictest12097-21sendmail10:21:130
5304993126,3cyclictest12097-21sendmail10:21:130
5304993125,4cyclictest25792-21gltestperf12:21:330
5304993125,4cyclictest25792-21gltestperf12:21:330
5305993025,3cyclictest5303-21cyclictest11:16:211
5305993025,3cyclictest5303-21cyclictest11:16:211
5305993024,5cyclictest9054-21kernelversion10:11:331
5305993023,5cyclictest21980-21sshd09:21:221
5305993023,5cyclictest21980-21sshd09:21:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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