[PATCH] Add the VSL tag BereqEnd

[Martin Blix Grydeland]

On 15 October 2013 14:34, Geoff Simmons <geoff at uplex.de> wrote:

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> On 10/15/2013 01:56 PM, Martin Blix Grydeland wrote:
> >
> > I am missing a Treq field, which is the time it took to send the request
> > to the backend in the first place. Would be used to search for network
> > issues (or slow piping of passed client request bodies).
>
> OK. The only concern here (and the only reason I left it out) is that it
> would require another syscall per backend fetch (VTIM_real just before
> sending the request). But if we're sure we can afford that, then let's
> do it.
>

Since there's network traffic happening here and backend response time, any
additional delays from a VTIM_real will imo be insignificant and not be
measurable against the time-to-first-byte of the client reply. But PHK
might have an opinion on that?

Martin

-- 
<http://varnish-software.com>*Martin Blix Grydeland*
Senior Developer | Varnish Software AS
Cell: +47 21 98 92 60
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