Really I've found the problem and was a Image File that was created in
parallel, so nothing wrong with Firebird.

Att,

Alexis Diel


On Wed, Aug 28, 2013 at 2:15 AM, liviuslivius@... <
liviuslivius@...> wrote:

> **
>
>
> Hi,
>
> This is cache problem of win64 not firebird itself. i do not remember link
> but try with google firebird eat whole memory or somethink like this.
>
> Regards,
> Karol Bieniaszewski
>
> ----- Reply message -----
> Od: "Alexis Diel" <alexis_diel@...>
> Do: <firebird-support@yahoogroups.com>
> Temat: [firebird-support] firebird performance on xeon cpu
> Data: śr., sie 28, 2013 04:50
> I'm actually having this same problem with one of my clients. He have two
>
> servers with x64 Windows and 8Gb of RAM. One of them is xp, the other is
>
> seven. I tested Firebird 2.5.2 x32 and x64... change various configuration
>
> and no success yet to reduce the consume of memory... that after a while
>
> get between 80 and 90% and reduce the performance of the system
>
> Em 27/08/2013 22:25, "安占江" <anzhanjiang@...> escreveu:
>
> > **
>
> >
>
> >
>
> > 于 2013年08月27日 23:53, Leyne, Sean 写道:
>
> > >
>
> > >
>
> > >
>
> > > > I have resolved this question.
>
> > > > on disk driver property labels, I checked the close window cache on
>
> > > disk,
>
> > > > which is unchecked by default.
>
> > > > but I don't known the reason.
>
> > >
>
> > > Actually, changing that setting is VERY DANGEROUS, it could lead to
>
> > > database corruption!
>
> > >
>
> > > The setting tells the OS to assume that the device has a protected
>
> > > cache (write-back), that will ensure that all writes will be persisted
>
> > > to storage, even when the power is lost.
>
> > >
>
> > > This setting should only applies (be used) with disk controllers with
>
> > > battery protection or SSDs with power failure protection.
>
> > >
>
> > > In your case, a single HDD will have limited performance, period. 83
>
> > > IO/sec is not exactly great performance.
>
> > >
>
> > > Further, are you aware of the Windows page cache issues on x64
>
> > > systems? It can make the system grind. FB v2.5.2 has a fix to help
>
> > > address the issue, what version are you running?
>
> > >
>
> > > Sean
>
> > >
>
> > >
>
> > first, I am sorry for my poor english.
>
> >
>
> > I known what mean of this option.
>
> > I imagine the main reason is that intel raid chipset has some issues
>
> > with this option on win7 os.
>
> > I try two way to validate my guess.
>
> > 1, use a memory dist to create fdb.
>
> > 2, change storage protocal from sata/raid to ide /sata on bios setting..
>
> > the two ways are natural.
>
> >
>
> > the fb v2.1 && v2.5.2 have been tested.
>
> >
>
> > [Non-text portions of this message have been removed]
>
> >
>
> >
>
> >
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
>

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