[Skiboot] [PATCH] hw/phb3: Increase AIB TX command credit for DMA read in CAPP DMA mode

Andrew Donnellan andrew.donnellan at au1.ibm.com
Wed Jul 13 16:26:35 AEST 2016

On 08/07/16 16:46, Andrew Donnellan wrote:
>> Any reason why you are only increasing command credits for DMA read on
>> channel 2 and not for DMA writes on Channel 0 ?
> As far as I'm aware we were only observing significant performance
> degradation on reads, not writes. John/Rick/Mike - thoughts?

John's confirmed privately that he wasn't observing any performance 
issues on the writes but will check this. I'll see if we can figure out 
what value it's originally set to...

Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnellan at au1.ibm.com  IBM Australia Limited

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