Reg: exact field for response time

[Hardik]

Hi Geoff,

Thanks for reply. I understood meaning of the fields in varnish 6.

One answer I got that we should consider 0.048125 as total response time.
But my actual question is different.
I am not getting difference between varnish 3 and varnish 6.

Exact question if I ask..

*varnish 3*
ReqEnd c 877345549 1233949945.075706005 1233949945.075754881 0.017112017
0.000022888 *0.000025988*

*varnish 6.1*
Timestamp Resp: 1501601912.806787* 0.048125* *0.000037*

*0.000025988 (varnish 3) is equivalent to 0.048125 or 0.000037 (varnish 6)
?*

we have upgraded from 3 to 6 so not able to decide exact field which I was
reading in case of varnish 3.

*Thank you*
*Hardik*



On Mon, 18 Mar 2019 at 16:52, Geoff Simmons <geoff at uplex.de> wrote:

> On 3/18/19 12:09, Hardik wrote:
> >
> > *varnish 6.1*
> > Timestamp Resp: 1501601912.806787 0.048125 *0.000037*
> >
> >
> https://feryn.eu/blog/varnishlog-measure-varnish-cache-performance/#The_Timestamp_tag
> >
> >
> > -> Are both fields give same values, means same meaning or both are
> > different? In varnish 3 I was reading last field. And as per explanation
> > its time from delivery to end of request ( and not total time from start
> of
> > request till end, plz correct if wrong). Based on this explanation I am
> > reading resp time only and no total time in resp tag. Do I have to read
> > 0.048125 to be compatible with varnish 3 or I am doing correct ?
>
> man vsl(7) is your friend here:
>
>               The format is:
>
>                  %s: %f %f %f
>                  |   |  |  |
>                  |   |  |  +- Time since last timestamp
>                  |   |  +---- Time since start of work unit
>                  |   +------- Absolute time of event
>                  +----------- Event label
>
> So the second number is the time since request processing began, and the
> third number is the time since the previous timestamp.
>
> Timestamp:Resp usually comes after Timestamp:Process:
>
>        Process
>               Processing finished, ready to deliver the client response.
>
>        Resp   Delivery of response to the client finished.
>
> So in your example, it's 48.125ms since the start of request processing,
> and 37µs since the previous timestamp, usually meaning 37µs for response
> delivery.
>
> The second field of Timestamp:Resp (48ms here) is a good measure of the
> total time to process the request.
>
>
> HTH,
> Geoff
> --
> ** * * UPLEX - Nils Goroll Systemoptimierung
>
> Scheffelstraße 32
> 22301 Hamburg
>
> Tel +49 40 2880 5731
> Mob +49 176 636 90917
> Fax +49 40 42949753
>
> http://uplex.de
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.varnish-cache.org/lists/pipermail/varnish-misc/attachments/20190318/c6aa32b8/attachment.html>