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2025-12-12 - 19:04

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 highest latencies:
System (updated Fri Dec 12, 2025 06:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1265023220,2sleep012652-21unixbench-2d05:00:500
13403991433,104cyclictest16804-21Run05:44:370
13403991312,108cyclictest23583-21taskset05:58:320
13403991282,103cyclictest20983-21syscall06:04:010
134059911610,80cyclictest19011-21latency_hist05:45:182
134039911530,63cyclictest7950irq/56-dwc_otg_05:47:300
13403991104,79cyclictest21537-21aten_rbpower_en06:05:360
13403991104,79cyclictest21537-21aten_rbpower_en06:05:360
1982221040,4sleep119810-21execl05:49:541
1513021010,2sleep20-21swapper/206:02:102
13403991012,52cyclictest21548-21taskset05:52:570
3163521000,4sleep231634-21sort05:37:592
1340599999,10cyclictest19527-21chrt05:47:372
1340599974,73cyclictest23611-21pipe05:58:492
13405999612,13cyclictest22015-21latency06:05:462
13405999612,13cyclictest22015-21latency06:05:462
1340399961,84cyclictest21146-21fstime05:27:310
1340599932,16cyclictest7950irq/56-dwc_otg_05:53:462
268162920,1sleep10-21swapper/105:34:441
1340399901,72cyclictest0-21swapper/005:38:560
1340399852,68cyclictest22821-21grep05:30:430
1340399851,65cyclictest9803-21awk06:20:460
111042840,4sleep111073-21sh05:43:141
1340699826,51cyclictest0-21swapper/305:58:413
40172810,1sleep10-21swapper/106:10:181
40172810,1sleep10-21swapper/106:10:181
198292790,4sleep319810-21execl05:50:003
1340399791,75cyclictest0-21swapper/006:15:160
1340399781,64cyclictest7237-21/usr/sbin/munin06:15:320
1340399752,51cyclictest0-21swapper/006:33:480
1340399751,36cyclictest0-21swapper/005:18:460
1340399751,36cyclictest0-21swapper/005:18:460
1340399742,51cyclictest0-21swapper/006:28:490
1340399741,62cyclictest0-21swapper/005:10:280
1340399741,61cyclictest15454-21seq06:36:230
1340399741,61cyclictest0-21swapper/005:22:060
142652720,2sleep00-21swapper/005:05:440
1340499728,44cyclictest21191-21syscall06:05:191
13404997025,21cyclictest7950irq/56-dwc_otg_05:58:491
1340699693,37cyclictest0-21swapper/305:45:203
13404996920,18cyclictest21-21rcuc/105:52:581
297972630,3sleep129799-21sh05:39:591
13405996220,4cyclictest16921-21cat05:15:172
1340699612,28cyclictest37-21rcuc/306:03:573
13406996111,33cyclictest21530-21fstime05:52:563
1340599611,17cyclictest6496-21expr06:10:262
13406995910,22cyclictest21734-21syscall06:05:413
13406995910,22cyclictest21734-21syscall06:05:413
1340599582,18cyclictest19514-21fstime05:25:252
13405995812,5cyclictest22002-21fschecks_time05:30:312
1340599572,5cyclictest0-21swapper/205:10:162
124382560,8sleep229-21rcuc/205:00:482
1340599552,18cyclictest0-21swapper/206:39:082
1340499521,30cyclictest31156-21sh06:11:461
13406994814,19cyclictest30170-21multi.sh06:11:443
1340599466,26cyclictest0-21swapper/206:25:352
1340699437,24cyclictest0-21swapper/305:05:313
1340499421,16cyclictest221ktimersoftd/105:10:281
1340699411,13cyclictest7950irq/56-dwc_otg_05:25:403
1340499412,31cyclictest0-21swapper/106:35:301
13404994010,11cyclictest0-21swapper/106:20:281
1340499396,4cyclictest21-21rcuc/106:25:361
13404993921,5cyclictest23-21ksoftirqd/105:15:481
13404993921,5cyclictest23-21ksoftirqd/105:15:481
13404993916,12cyclictest221ktimersoftd/105:20:191
13404993915,5cyclictest13978-21idleruntime-cro06:35:171
1340499382,7cyclictest0-21swapper/106:15:411
1340699377,5cyclictest7750irq/56-dwc_otg05:40:183
1340499372,25cyclictest7850irq/56-dwc_otg_05:27:491
1340699359,11cyclictest7950irq/56-dwc_otg_06:25:383
1340699353,4cyclictest7950irq/56-dwc_otg_05:10:303
1340599351,8cyclictest0-21swapper/206:15:252
1340599337,14cyclictest0-21swapper/206:20:302
1340699321,9cyclictest0-21swapper/306:15:243
1340699321,22cyclictest19548-21latency_hist05:25:163
1340699314,14cyclictest7950irq/56-dwc_otg_05:30:343
1340699311,10cyclictest17936-21/usr/sbin/munin05:15:443
1340699311,10cyclictest17936-21/usr/sbin/munin05:15:443
1340599314,15cyclictest7950irq/56-dwc_otg_05:20:492
1340599314,15cyclictest7950irq/56-dwc_otg_05:20:142
1340599314,15cyclictest7950irq/56-dwc_otg_05:20:142
1340499311,27cyclictest14307-21switchtime05:05:441
1340699304,5cyclictest13554-21grep06:30:433
130592304,16sleep10-21swapper/105:04:211
1340699299,7cyclictest7950irq/56-dwc_otg_06:35:423
1340599293,3cyclictest7950irq/56-dwc_otg_06:30:402
1340699271,17cyclictest0-21swapper/306:23:443
129372263,14sleep30-21swapper/305:02:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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