| From: | Dave Page <dpage(at)pgadmin(dot)org> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Cc: | Craig Ringer <craig(at)2ndquadrant(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Tomas Vondra <tv(at)fuzzy(dot)cz>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Making testing on Windows easier |
| Date: | 2013-01-21 14:03:28 |
| Message-ID: | CA+OCxozh-44EwQg4YTcHMkexuu0Sr1guS=seQD_gORus7AXaBw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Jan 21, 2013 at 1:59 PM, Andrew Dunstan <andrew(at)dunslane(dot)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
EnterpriseDB UK: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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