[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Gnu-arch-users] Re: [PATCH] arch speedups on big trees

From: Miles Bader
Subject: [Gnu-arch-users] Re: [PATCH] arch speedups on big trees
Date: 09 Jan 2004 10:51:18 +0900

Miles Bader <address@hidden> writes:
> > How big is big?  In order for reading the file twice to hurt, it
> > would have to be a considerable percentage of the system ram.  The
> > fork+exec cost is pretty high compared to the overhead of the double
> > read, especially when you consider that for most commits most of the
> > files are unchanged.
> The real problem is that I don't know, and I suspect the actual details
> vary per filesystem.  I think with such filesystems as NFS, there are
> limits on file caching much lower than theoretical ones such as RAM size.

Oh, also, I'm currently kind of fixated on NFS....  you're probably
right that using arch_binary_files_differ is better for the majority of

Saa, shall we dance?  (from a dance-class advertisement)

reply via email to

[Prev in Thread] Current Thread [Next in Thread]