[U-Boot] [U-Boot, 1/2] common: Add CCACHE variable to allow use of ccache

[York Sun]

On 08/22/2013 08:05 PM, Marek Vasut wrote:
> Dear York Sun,
> 
>> On 08/22/2013 12:36 PM, Marek Vasut wrote:
>>> There is an env variable to configure separate ccache cache dir , so just
>>> by setting that. But then , when each build ends, you would need to
>>> clean it up somehow. It was mentioned in the discussion with the patch.
>>> You can try working on this some more and post a patch, then we can talk
>>> about further forging of this.
>>
>> I fixed the 2nd patch and I am running MAKEALL with individual board
>> folder for ccache. The compiling time for the first run on my laptop is
>> 56 minutes. The 2nd run is 23 minutes. About the same improvement if
>> using a big unified cache for all boards. By the way, each board cache
>> is about 7~8MB.
>>
>> You set my expectation high. I was hoping to get 10x or more improvement.
> 
> It should be more, try checking if there is no bottleneck.
> 

I can send you the patch. Will you be able to test?

York