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2025-12-18 - 08:51

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 Thu Dec 18, 2025 00:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2868991919,0cyclictest65850irq/126-lan21:32:110
2868991918,1cyclictest65850irq/126-lan23:35:190
2868991918,1cyclictest65850irq/126-lan22:45:130
2885991814,2cyclictest440-21hwrng21:30:113
2868991817,1cyclictest65850irq/126-lan22:55:120
2868991817,1cyclictest65850irq/126-lan19:50:120
2868991817,1cyclictest65850irq/126-lan00:15:220
2868991817,1cyclictest65850irq/126-lan00:05:230
2885991715,2cyclictest440-21hwrng22:20:223
2885991715,2cyclictest440-21hwrng21:49:383
2885991715,2cyclictest440-21hwrng21:02:323
2885991715,2cyclictest440-21hwrng20:55:223
2885991715,2cyclictest440-21hwrng20:54:203
2868991717,0cyclictest65850irq/126-lan20:20:210
2868991717,0cyclictest65850irq/126-lan19:45:180
2868991717,0cyclictest65850irq/126-lan00:36:020
2868991716,1cyclictest65850irq/126-lan23:45:120
2868991716,1cyclictest65850irq/126-lan23:26:000
2868991716,1cyclictest65850irq/126-lan21:39:270
2868991716,1cyclictest65850irq/126-lan21:00:130
2868991716,1cyclictest65850irq/126-lan19:25:160
2868991716,1cyclictest65850irq/126-lan19:15:180
2885991616,0cyclictest440-21hwrng20:07:143
2885991615,1cyclictest440-21hwrng22:46:593
2885991615,1cyclictest440-21hwrng00:18:073
2885991614,2cyclictest440-21hwrng23:58:403
2885991614,2cyclictest440-21hwrng23:53:323
2885991614,2cyclictest440-21hwrng23:33:033
2885991614,2cyclictest440-21hwrng21:55:473
2885991614,2cyclictest440-21hwrng19:43:413
2868991616,0cyclictest65850irq/126-lan22:00:010
2868991616,0cyclictest440-21hwrng22:39:490
2868991615,1cyclictest65850irq/126-lan23:50:140
2868991615,1cyclictest65850irq/126-lan23:15:170
2868991615,1cyclictest65850irq/126-lan22:30:140
2868991615,1cyclictest65850irq/126-lan22:10:200
2868991615,1cyclictest65850irq/126-lan21:50:110
2868991615,1cyclictest65850irq/126-lan21:40:190
2868991615,1cyclictest65850irq/126-lan20:10:160
2868991615,1cyclictest65850irq/126-lan19:20:150
2885991515,0cyclictest440-21hwrng23:41:163
2885991515,0cyclictest440-21hwrng23:20:463
2885991515,0cyclictest440-21hwrng23:06:263
2885991515,0cyclictest440-21hwrng23:00:183
2885991515,0cyclictest440-21hwrng22:43:553
2885991515,0cyclictest440-21hwrng22:36:443
2885991515,0cyclictest440-21hwrng22:08:053
2885991515,0cyclictest440-21hwrng21:42:283
2885991515,0cyclictest440-21hwrng21:27:063
2885991515,0cyclictest440-21hwrng21:20:583
2885991515,0cyclictest440-21hwrng21:10:433
2885991515,0cyclictest440-21hwrng20:45:083
2885991515,0cyclictest440-21hwrng20:16:273
2885991515,0cyclictest440-21hwrng19:45:443
2885991515,0cyclictest440-21hwrng19:39:353
2885991515,0cyclictest440-21hwrng19:32:253
2885991515,0cyclictest440-21hwrng19:19:073
2885991515,0cyclictest440-21hwrng00:32:273
2885991515,0cyclictest440-21hwrng00:05:503
2885991514,1cyclictest440-21hwrng23:16:403
2885991514,1cyclictest440-21hwrng22:14:133
2885991514,1cyclictest440-21hwrng20:02:073
2885991514,1cyclictest440-21hwrng00:01:443
2885991513,2cyclictest440-21hwrng23:38:113
2885991513,2cyclictest440-21hwrng22:50:033
2885991513,2cyclictest440-21hwrng22:02:573
2885991513,2cyclictest440-21hwrng20:13:233
2885991513,2cyclictest440-21hwrng00:11:593
2881991515,0cyclictest440-21hwrng23:59:422
2881991515,0cyclictest440-21hwrng23:33:042
2881991515,0cyclictest440-21hwrng23:19:452
2881991515,0cyclictest440-21hwrng23:05:252
2881991515,0cyclictest440-21hwrng22:50:032
2881991515,0cyclictest440-21hwrng22:33:402
2881991515,0cyclictest440-21hwrng22:23:252
2881991515,0cyclictest440-21hwrng21:55:472
2881991515,0cyclictest440-21hwrng21:53:442
2881991515,0cyclictest440-21hwrng21:46:342
2881991515,0cyclictest440-21hwrng21:39:252
2881991515,0cyclictest440-21hwrng21:30:112
2881991515,0cyclictest440-21hwrng21:25:042
2881991515,0cyclictest440-21hwrng21:20:582
2881991515,0cyclictest440-21hwrng21:15:512
2881991515,0cyclictest440-21hwrng21:11:452
2881991515,0cyclictest440-21hwrng21:05:362
2881991515,0cyclictest440-21hwrng20:57:252
2881991515,0cyclictest440-21hwrng20:33:522
2881991515,0cyclictest440-21hwrng20:28:452
2881991515,0cyclictest440-21hwrng20:24:392
2881991515,0cyclictest440-21hwrng19:35:302
2881991515,0cyclictest440-21hwrng19:22:112
2881991515,0cyclictest440-21hwrng19:15:012
2881991515,0cyclictest440-21hwrng00:37:342
2881991515,0cyclictest440-21hwrng00:33:282
2881991515,0cyclictest440-21hwrng00:25:172
2881991515,0cyclictest440-21hwrng00:23:142
2881991515,0cyclictest440-21hwrng00:19:082
2881991515,0cyclictest440-21hwrng00:10:582
2873991515,0cyclictest440-21hwrng23:58:391
2873991515,0cyclictest440-21hwrng23:52:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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