On Fri, 27 Oct 2006, Graham Leggett wrote:
Err. We had the data in memory, we are going to read it back from disk
again just in order to not block ? That's nonsense.
Agreed.
Please explain.
This is a disk cache. Why would you write expensive bucket data to cache,
and then expensive bucket data to the network?
That's plain stupid.
And when you have a file backend, you want to hit your disk cache and
not the backend when delivering data to a client. People might think
that this doesn't matter, but for large files, especially larger than
RAM in your machine, you usually go disk-bound without much help from
the OS disk cache.
Also, httpd seems to be faster delivering data by sendfile than
delivering data from memory buckets. That's more of a performance bug
in httpd though.
/Nikke
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Niklas Edmundsson, Admin @ {acc,hpc2n}.umu.se | [EMAIL PROTECTED]
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