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Re: Last-Modified HTTP header in GET responses

From: Stefan Fuhrmann <eqfox_at_web.de>
Date: Mon, 04 Jan 2016 16:25:59 +0100

On 04.01.2016 14:25, Philip Martin wrote:
> Branko ─îibej <brane_at_apache.org> writes:
>
>> Your analysis looks sound, but I wonder if doing this would have any
>> serious effect on checkout/update times; after all, the bulk of the work
>> there is in report generation, only HTTPv2 is affected by GET response
>> construction.
>
> When I checkout Subversion trunk from my local mirror I cannot measure a
> client gain, but I can measure better server efficiency:
>
> - The CPU used by Apache goes down from 1.2s to 1.1s.
>
> - The number of system calls made by Apache goes down
>
> 68822 to 50664 for hot FSFS cache

Do you have quick way to find out which files
we are reading in that case? My guess would
be a fair bit of revprops during the report
phase but for the GETs, its less obvious.

> 178885 to 161722 for cold FSFS cache

-- Stefan^2.
Received on 2016-01-04 16:26:11 CET

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