Reg: exact field for response time

[Hardik]

This line is creating confusion for me..

https://github.com/jib/libvmod-timers/blob/master/src/vmod_timers.c
The sixth and last number (0.000025988) is the time from we start
delivering the object until the request completes.

Thanks
Hardik

On Mon, 18 Mar 2019 at 21:20, Hardik <hetardik.p at gmail.com> wrote:

> 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
>>
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>>
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>>
>>
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