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2026-01-03 - 10:28

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #4

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.
Unexpectedly long latencies may be caused by SMIs
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 rack9slot4s (updated Sat Jan 03, 2026 00:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
141149912401220,17cyclictest14277-21wget19:25:091
141139912301184,33cyclictest14289-21aten_r4power_en19:25:090
141149911191103,10cyclictest21004-21fschecks_time19:40:161
131842708659,33sleep10-21swapper/119:20:261
126232563516,30sleep00-21swapper/019:20:150
2318321250,2sleep00-21swapper/023:57:400
141139912184,25cyclictest0-21swapper/019:40:160
157642850,5sleep1201rcuc/122:10:101
292522830,3sleep041ktimersoftd/022:56:550
91752570,4sleep0111rcuc/000:50:290
79292530,4sleep1211ktimersoftd/100:15:211
147942491,34sleep014888-21memory21:35:220
175742480,5sleep0111rcuc/022:11:130
110332451,5sleep111047-21ssh23:11:191
110332451,5sleep111047-21ssh23:11:191
157052430,4sleep11411499cyclictest23:16:031
14113994323,8cyclictest3-21ksoftirqd/000:35:130
90002420,3sleep0111rcuc/021:30:000
53682410,7sleep11411499cyclictest22:32:221
14113994124,6cyclictest3-21ksoftirqd/023:16:550
14113994124,6cyclictest3-21ksoftirqd/021:33:080
14113994120,6cyclictest3-21ksoftirqd/023:13:380
14113994120,6cyclictest3-21ksoftirqd/023:13:370
14113994120,5cyclictest3-21ksoftirqd/023:06:260
14113994024,6cyclictest3-21ksoftirqd/000:46:370
14113994024,5cyclictest3-21ksoftirqd/023:43:180
14113994023,6cyclictest3-21ksoftirqd/022:26:070
14113994023,6cyclictest3-21ksoftirqd/000:01:220
14113994022,6cyclictest3-21ksoftirqd/021:49:440
14113994021,5cyclictest3-21ksoftirqd/022:42:210
14114993922,13cyclictest18471-21ssh00:25:381
14113993923,5cyclictest3-21ksoftirqd/023:54:120
14113993923,5cyclictest3-21ksoftirqd/000:44:380
14113993922,6cyclictest3-21ksoftirqd/000:17:510
14113993921,8cyclictest3-21ksoftirqd/023:23:460
14113993919,5cyclictest3-21ksoftirqd/022:18:160
14113993918,6cyclictest3-21ksoftirqd/023:05:010
303102381,33sleep030321-21ssh21:18:100
14114993822,13cyclictest3302-21runrttasks22:00:101
14113993822,6cyclictest3-21ksoftirqd/022:33:000
14113993822,6cyclictest3-21ksoftirqd/021:58:380
14113993822,6cyclictest3-21ksoftirqd/000:10:540
14113993822,5cyclictest3-21ksoftirqd/000:23:150
14113993821,6cyclictest3-21ksoftirqd/021:04:420
86922371,32sleep18704-21ssh23:09:561
14113993723,5cyclictest3-21ksoftirqd/023:26:570
14113993723,5cyclictest3-21ksoftirqd/000:28:140
14113993722,5cyclictest3-21ksoftirqd/020:30:020
14113993721,6cyclictest3-21ksoftirqd/020:48:380
14113993721,5cyclictest3-21ksoftirqd/022:47:030
14113993720,5cyclictest3-21ksoftirqd/023:30:560
14113993720,5cyclictest3-21ksoftirqd/000:05:530
1411399371,7cyclictest16774-21/usr/sbin/munin19:30:260
53112361,4sleep15322-21diskmemload21:59:331
1411499362,30cyclictest0-21swapper/121:30:551
14113993621,5cyclictest3-21ksoftirqd/022:22:300
14113993621,5cyclictest3-21ksoftirqd/022:05:410
14113993621,5cyclictest3-21ksoftirqd/021:43:510
14113993621,5cyclictest3-21ksoftirqd/021:20:570
14113993621,5cyclictest3-21ksoftirqd/020:03:110
14113993621,4cyclictest3-21ksoftirqd/022:39:460
14113993620,5cyclictest3-21ksoftirqd/000:33:390
14113993619,6cyclictest3-21ksoftirqd/020:39:110
14113993619,6cyclictest3-21ksoftirqd/020:39:100
257122351,30sleep025713-21cron19:52:010
217822351,4sleep121793-21sh23:22:501
1411499353,30cyclictest0-21swapper/121:38:151
1411499353,30cyclictest0-21swapper/119:50:361
1411499352,5cyclictest0-21swapper/100:40:161
14114993525,6cyclictest30497-21gdbus23:38:161
1411499352,30cyclictest0-21swapper/122:44:551
1411399357,4cyclictest81rcu_preempt21:12:340
14113993520,5cyclictest3-21ksoftirqd/023:45:430
14113993520,5cyclictest3-21ksoftirqd/022:51:470
14113993518,6cyclictest3-21ksoftirqd/020:41:060
306482341,3sleep130658-21ssh21:18:401
14114993427,4cyclictest0-21swapper/122:55:361
1411499341,6cyclictest4094-21ssh21:24:581
1411499341,30cyclictest32119-21ssh22:26:151
1411499341,30cyclictest0-21swapper/121:51:361
1411499341,29cyclictest26823-21ssh00:00:561
1411499341,14cyclictest89982ls21:30:001
14113993419,5cyclictest3-21ksoftirqd/022:01:370
14113993417,6cyclictest3-21ksoftirqd/020:16:590
23162331,5sleep00-21swapper/023:35:380
1411499335,4cyclictest81rcu_preempt21:44:011
1411499334,4cyclictest81rcu_preempt21:14:281
1411499334,4cyclictest81rcu_preempt00:08:221
1411499333,26cyclictest28759-21tune2fs23:30:151
14114993325,5cyclictest19447-21ssh23:54:151
1411499331,29cyclictest0-21swapper/100:12:161
14113993318,5cyclictest3-21ksoftirqd/020:58:530
29022321,4sleep12403-21irqbalance20:18:251
1411499324,4cyclictest81rcu_preempt23:45:531
1411499324,4cyclictest81rcu_preempt00:38:191
1411499324,4cyclictest81rcu_preempt00:31:051
1411499323,4cyclictest81rcu_preempt23:59:101
1411499323,4cyclictest81rcu_preempt22:46:261
1411499321,5cyclictest0-21swapper/119:55:361
1411499321,4cyclictest81rcu_preempt22:20:221
14114993211,18cyclictest0-21swapper/100:53:321
1411499321,10cyclictest23594-21aten_r4power_en23:25:121
1411399326,8cyclictest14608-21aten_r4power_po20:50:130
14113993216,5cyclictest3-21ksoftirqd/020:07:000
14113993210,7cyclictest3-21ksoftirqd/020:11:520
14113993210,6cyclictest3-21ksoftirqd/021:50:290
57292311,26sleep15749-21tr20:25:211
1411499318,4cyclictest81rcu_preempt22:36:571
1411499317,4cyclictest81rcu_preempt20:50:121
1411499313,5cyclictest81rcu_preempt22:07:071
1411499313,5cyclictest81rcu_preempt00:45:131
1411499313,4cyclictest81rcu_preempt23:43:471
1411499313,4cyclictest81rcu_preempt21:09:501
1411499311,5cyclictest81rcu_preempt00:21:551
1411499311,27cyclictest0-21swapper/121:46:591
1411499311,16cyclictest0-21swapper/122:16:051
14113993117,4cyclictest3-21ksoftirqd/020:21:330
1411399311,28cyclictest0-21swapper/019:55:550
14113993110,6cyclictest3-21ksoftirqd/021:09:510
35482301,5sleep10-21swapper/120:20:161
1411499301,5cyclictest0-21swapper/119:46:151
1411499301,4cyclictest81rcu_preempt22:50:271
1411499300,4cyclictest81rcu_preempt20:11:521
74992291,4sleep17532-21/usr/sbin/munin20:30:211
64472291,5sleep00-21swapper/020:25:560
1411499292,4cyclictest81rcu_preempt23:01:461
14113992914,5cyclictest23814-21runrttasks19:46:450
316342281,4sleep10-21swapper/120:09:521
177422281,5sleep10-21swapper/120:56:021
14114992819,5cyclictest18700-21aten_r4power_en19:35:121
14114992815,8cyclictest29485-21cron20:01:591
1411399281,8cyclictest19110-21fschecks_time19:35:170
1411499273,3cyclictest81rcu_preempt19:33:491
1411499273,18cyclictest18806-21hddtemp_smartct21:00:191
14114992711,11cyclictest14447-21seq20:50:011
104812271,5sleep10-21swapper/120:38:531
104812271,5sleep10-21swapper/120:38:531
14114992616,6cyclictest11959-21unixbench_multi20:40:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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