Re: Making testing on Windows easier

Dave Page <dpage@pgadmin.org>

From: Dave Page <dpage@pgadmin.org>
To: Andrew Dunstan <andrew@dunslane.net>
Cc: Craig Ringer <craig@2ndquadrant.com>, Noah Misch <noah@leadboat.com>, Magnus Hagander <magnus@hagander.net>, Tomas Vondra <tv@fuzzy.cz>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2013-01-21T14:03:28Z
Lists: pgsql-hackers
On Mon, Jan 21, 2013 at 1:59 PM, Andrew Dunstan <andrew@dunslane.net> wrote:
>
> On 01/21/2013 08:11 AM, Dave Page wrote:
>
>>>
>>> I was never able to determine why the Windows instances were so much
>>> slower than the corresponding Linux instance of the same type.
>>
>> Full vs. para-virtualisation perhaps?
>>
>
> No, Windows builds just are slower. For some time the buildfarm has been
> reporting run times for various members, so there's plenty of data on this.
> For example, nightjar and currawong are respectively FreeBSD/gcc and
> WindowsXP/VC2008 members running in VMs on the same host. currawong takes
> three times as long for a buildfarm run even though it's doing less work.

Hmm, OK. I don't build PostgreSQL interactively enough to notice I
guess. For C++ it's definitely the other way round - I can build
pgAdmin in a fraction of the time in a Windows VM than I can on the
host Mac it runs on.


--
Dave Page
Blog: http://pgsnake.blogspot.com
Twitter: @pgsnake

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