Gzip compression and Transfer-Encoding
is at rambler-co.ru
Mon Oct 22 14:11:48 MSD 2007
On Mon, Oct 22, 2007 at 05:53:22PM +1000, Dave Cheney wrote:
> We use the following settings for gzip compression
> gzip on;
> gzip_min_length 1100;
> gzip_comp_level 5;
> gzip_buffers 4 16k;
> gzip_types text/html text/plain text/xml text/css
> Which leads to good compression but regardless of the size of the
> document always requires chunked encoding to send the resulting data.
> For larger documents this doesn't matter, but for smaller documents I
> would like to provide a Content-Length header and avoid chunked
What problem with chunked encoding ?
> Is their a buffer setting that specifies the size of the initial
> buffer to be compressed, the idea being that if the whole response
> body fits in that one buffer, it can be compressed in one go, and the
> resulting content length discovered.
The problem is that gzip is filter: the header sent to client before
compression even starts. However, it is possible to postpone header
processing to know the compressed size.
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