Anyone use a %D in varnishncsa (like in Apache)

Stephen Wood smwood4 at
Fri Mar 7 10:07:19 CET 2014

It's listed as a valid format for varnishncsa according to

%D Time taken to serve the request, in microseconds.

On Thu, Mar 6, 2014 at 3:26 PM, Jennings, Raymond <
raymond.jennings at> wrote:

> I recently tired it from someone else telling me it works.
> The man pages for varnishncsa do not list it as a valid format option.
> I used for a day and it seems to work but occasionally I do get some
> negative floating point response times.  Does anyone know if this format is
> "semi supported" ?
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> varnish-misc mailing list
> varnish-misc at

Stephen Wood
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