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2025-12-19 - 15:38

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #6

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 100 highest latencies:
System rack8slot6s.osadl.org (updated Fri Dec 19, 2025 12:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13873992423,1cyclictest440-21hwrng12:36:103
13866992121,0cyclictest440-21hwrng11:13:131
13866991919,0cyclictest440-21hwrng08:28:211
13858991918,1cyclictest65850irq/126-lan09:29:280
13871991818,0cyclictest440-21hwrng09:04:122
13858991818,0cyclictest65850irq/126-lan10:14:120
13858991817,1cyclictest65850irq/126-lan10:35:190
13858991817,1cyclictest65850irq/126-lan10:15:210
13858991817,1cyclictest65850irq/126-lan10:05:120
13858991817,1cyclictest65850irq/126-lan10:00:120
13873991715,2cyclictest440-21hwrng10:16:543
13873991715,2cyclictest440-21hwrng07:17:423
13866991717,0cyclictest440-21hwrng09:24:421
13866991717,0cyclictest440-21hwrng07:29:591
13858991717,0cyclictest65850irq/126-lan11:45:120
13858991717,0cyclictest65850irq/126-lan10:49:120
13858991716,1cyclictest65850irq/126-lan12:00:160
13858991716,1cyclictest65850irq/126-lan11:15:170
13858991716,1cyclictest65850irq/126-lan10:40:200
13858991716,1cyclictest65850irq/126-lan09:50:140
13858991716,1cyclictest65850irq/126-lan09:30:150
13858991716,1cyclictest65850irq/126-lan07:45:160
13858991716,1cyclictest65850irq/126-lan07:35:190
13858991716,1cyclictest65850irq/126-lan07:25:160
13873991615,1cyclictest440-21hwrng12:24:543
13873991615,1cyclictest440-21hwrng12:00:193
13873991615,1cyclictest440-21hwrng11:16:173
13873991615,1cyclictest440-21hwrng10:01:323
13873991615,1cyclictest440-21hwrng09:39:013
13873991615,1cyclictest440-21hwrng09:17:303
13873991615,1cyclictest440-21hwrng07:59:413
13873991615,1cyclictest440-21hwrng07:11:343
13873991614,2cyclictest440-21hwrng11:45:593
13873991614,2cyclictest440-21hwrng09:53:213
13873991614,2cyclictest440-21hwrng09:10:203
13873991614,2cyclictest440-21hwrng08:52:563
13873991614,2cyclictest440-21hwrng08:49:523
13873991614,2cyclictest440-21hwrng08:31:263
13873991614,2cyclictest440-21hwrng08:17:063
13873991614,2cyclictest440-21hwrng07:39:123
13866991616,0cyclictest440-21hwrng09:49:151
13866991616,0cyclictest440-21hwrng08:35:311
13858991616,0cyclictest65850irq/126-lan12:30:110
13858991616,0cyclictest65850irq/126-lan11:00:140
13858991616,0cyclictest65850irq/126-lan09:20:070
13858991616,0cyclictest65850irq/126-lan08:00:200
13858991616,0cyclictest65850irq/126-lan07:50:110
13858991616,0cyclictest65850irq/126-lan07:20:100
13858991615,1cyclictest65850irq/126-lan11:50:150
13858991615,1cyclictest65850irq/126-lan11:10:230
13858991615,1cyclictest65850irq/126-lan09:15:160
13858991615,1cyclictest65850irq/126-lan08:38:540
13858991615,1cyclictest65850irq/126-lan08:25:110
13873991515,0cyclictest440-21hwrng12:34:073
13873991515,0cyclictest440-21hwrng12:18:453
13873991515,0cyclictest440-21hwrng11:40:523
13873991515,0cyclictest440-21hwrng10:40:273
13873991515,0cyclictest440-21hwrng10:37:243
13873991515,0cyclictest440-21hwrng10:30:133
13873991515,0cyclictest440-21hwrng09:49:153
13873991515,0cyclictest440-21hwrng09:20:353
13873991515,0cyclictest440-21hwrng09:07:163
13873991515,0cyclictest440-21hwrng08:56:003
13873991515,0cyclictest440-21hwrng08:38:363
13873991515,0cyclictest440-21hwrng08:20:103
13873991515,0cyclictest440-21hwrng07:53:323
13873991515,0cyclictest440-21hwrng07:40:143
13873991514,1cyclictest440-21hwrng12:25:563
13873991514,1cyclictest440-21hwrng11:57:153
13873991514,1cyclictest440-21hwrng10:29:113
13873991514,1cyclictest440-21hwrng07:33:043
13873991514,1cyclictest440-21hwrng07:27:573
13873991514,1cyclictest440-21hwrng07:21:483
13873991513,2cyclictest440-21hwrng11:21:253
13873991513,2cyclictest440-21hwrng11:01:573
13873991513,2cyclictest440-21hwrng09:43:063
13871991515,0cyclictest440-21hwrng12:25:562
13871991515,0cyclictest440-21hwrng12:07:292
13871991515,0cyclictest440-21hwrng11:51:062
13871991515,0cyclictest440-21hwrng11:37:482
13871991515,0cyclictest440-21hwrng11:30:372
13871991515,0cyclictest440-21hwrng11:28:352
13871991515,0cyclictest440-21hwrng11:18:202
13871991515,0cyclictest440-21hwrng11:11:102
13871991515,0cyclictest440-21hwrng10:50:432
13871991515,0cyclictest440-21hwrng10:46:362
13871991515,0cyclictest440-21hwrng10:41:292
13871991515,0cyclictest440-21hwrng10:24:052
13871991515,0cyclictest440-21hwrng10:10:452
13871991515,0cyclictest440-21hwrng09:41:042
13871991515,0cyclictest440-21hwrng09:25:422
13871991515,0cyclictest440-21hwrng09:23:392
13871991515,0cyclictest440-21hwrng09:13:252
13871991515,0cyclictest440-21hwrng09:08:172
13871991515,0cyclictest440-21hwrng08:58:032
13871991515,0cyclictest440-21hwrng08:54:592
13871991515,0cyclictest440-21hwrng08:43:432
13871991515,0cyclictest440-21hwrng08:26:182
13871991515,0cyclictest440-21hwrng08:07:522
13871991515,0cyclictest440-21hwrng07:58:402
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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