Re: thoughts on memory usage...

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Redfern Ian writes:

| Few web servers (and no FTP servers!) supply Content-MD5. It might be
| possible to persuade large archive sites to do so - at the moment,
| nobody uses it as it costs them MIPS for no gain. Perhaps if Apache
| could provide Content-MD5 only if requestor has a Via: line?

When I hacked the Content-MD5 support into Apache, the idea was to
come along later on and polish it up a bit. There hasn't been time
for that yet, though... I've been thinking about keeping a cache of
MD5s, in a DB[M] database keyed on the URL (or one database per
virtual server, with the key as the path component of the URL). Does
that sound reasonable ?

My impression is that something like this is needed before people
will accept Content-MD5 generation being enabled by default - so as
to avoid chewing up CPU time on WWW servers recalculating checksums
for objects which haven't changed.

Cheerio,

Martin

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Received on Tue Jul 29 2003 - 13:15:43 MDT