David Xu <[EMAIL PROTECTED]> wrote:
>
>but as I know, it seems TCP_NOPUSH is mainly used for TTCP, right?
That's what it was designed for.
>the idea behind TCP_CORK is it buffers any small data segment user
>program sending until these segments full fills a max TCP packet,
>then the packet is sent,
TCP_NOPUSH is the same
>web servers always send many very small HTTP headers, cause lots of
>small packets sent out, TCP_CORK can increase network performance.
No, web servers are very careful to reduce the number of packets
required for a response. TCP_CORK exists to avoid two bad packet
boundaries per request: one between the header and the body, and one
between the body and the next response. FreeBSD's sendfile allows you
to easily optimise the beginning of the response; optimising the
transition from one response to the next is harder.
Tony.
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f.a.n.finch [EMAIL PROTECTED] [EMAIL PROTECTED]
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