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Re: Entries caching & Performance

From: Greg Hudson <ghudson_at_MIT.EDU>
Date: 2002-11-26 04:15:53 CET

On Mon, 2002-11-25 at 19:56, Philip Martin wrote:
> It's possible it might work, but it's another tradeoff. Writing is a
> win, but reading is a loss. It is faster to stat/read a single large
> file compared to several hundred small files. Some people using
> working copies over NFS already believe we have too many files in the
> .svn area.

I wonder if we could combine the props base, props, and wc props into a
single file. That might be a win even on local disk, with filesystems
other than reiserfs.

(I thought about combining the entries parameters for each file into
that glob as well. You could keep reports fast by encoding the revision
into the filename of the glob. But revision bumping on update would
still be slow because you'd have to rename all those globs. I think
writing them out separately and combining them later is probably the
best idea for speeding up checkouts.)

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Received on Tue Nov 26 04:16:45 2002

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