[OE-core] [PATCH 1/4] sstate: Add extra directory level

[Richard Purdie]

On Sun, 2020-01-05 at 16:41 -0800, akuster808 wrote:
> On 1/5/20 4:06 PM, Richard Purdie wrote:
> > We're having speed issues on the autobuilder due to the numbers of
> > files in sstate
> > directories. We previously split these by the first two characters
> > of the hash.
> > This change extends this to split by the next two characters as
> > well, creating
> > more layers of directories.
> > 
> > This should signifiantly speed up eSDK builds on the autobuilder as
> > the current
> > sstate layout simply isn't scaling there but addresses a general
> > complaint.
> > 
> > gen-lockedsig-cache needed to be updated for the new split level
> > sstateI.
> 
> I assume zeus worthy?

I think we need to discuss that. It is a fairly significant change in
behaviour.

Options are:

a) none of these
b) only this first change
c) all of them if we want to fix the 255 char sstate filename limit
issue

Cheers,

Richard