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