I thought I'd be smart and put my ROM collection on a new Gigabit NAS.

Games load slower which is to be expected, but ClrMame is INCREDIBLY slow across the NAS. I know SMB isn't the greatest for small file access, but after 5 minutes it was still on 0%. I look at the network traffic and it's about 1500 bytes a second (what the heck...).

Any ideas on speeding it up? I'm starting to think my NAS is a total wash.

Well....cmpro only does standard c/c++ standard file access operations...and I somehow doubt that the libraries have major issues with accessing files over the net. So I suspect that something's wrong with your setup...timing issues...some other stuff interfearing (accessrights, virusscanners etc).
Of course you should also check if you're scanning with some of the slow-down features like sha1 check etc ;)

Maybe googling for NAS + Windows API CreateProcess and MFC CreateFile calls may find something...I will check this..



Roman Scherzer

> Well....cmpro only does standard c/c standard file access operations...and I
> somehow doubt that the libraries have major issues with accessing files over the
> net. So I suspect that something's wrong with your setup...timing issues...some
> other stuff interfearing (accessrights, virusscanners etc).
> Of course you should also check if you're scanning with some of the slow-down
> features like sha1 check etc ;)
>
> Maybe googling for NAS Windows API CreateProcess and MFC CreateFile calls may
> find something...I will check this..
>
>
>
> Roman Scherzer
>

Reading is fine, I can actually copy those files to my HD faster than ClrMame can scan them.

(I should have mentioned in my post, I am not doing a rebuild or anything, I am just performing a scan).

well...what do you scan (MAME, iso images ;)) and what's your turned on options? E.g. if you scan with sha1 checks enabled on huge files, it may take a while.....
Also again, try to disable a possible virusscanner (at least for the rompaths).

You can't compare a scan (which does some random access/seek operations to the file) with an OS' copy operation


Roman Scherzer

> well...what do you scan (MAME, iso images ;)) and what's your turned on options?
> E.g. if you scan with sha1 checks enabled on huge files, it may take a
> while.....
> Also again, try to disable a possible virusscanner (at least for the rompaths).
>
> You can't compare a scan (which does some random access/seek operations to the
> file) with an OS' copy operation
>
>
> Roman Scherzer
>

sha1 is not enabled, and it's just my MAME set (ie. for missing on a new MAME update). Is just incredibly slow for whatever reason. I remember doing it over the network before and it was slow, but not this slow. I think the DLink NAS is a piece of junk.

> > well...what do you scan (MAME, iso images ;)) and what's your turned on
> options?
> > E.g. if you scan with sha1 checks enabled on huge files, it may take a
> > while.....
> > Also again, try to disable a possible virusscanner (at least for the
> rompaths).
> >
> > You can't compare a scan (which does some random access/seek operations to the
> > file) with an OS' copy operation
> >
> >
> > Roman Scherzer
> >
>
> sha1 is not enabled, and it's just my MAME set (ie. for missing on a new MAME
> update). Is just incredibly slow for whatever reason. I remember doing it over
> the network before and it was slow, but not this slow. I think the DLink NAS is
> a piece of junk.
>


Hmm...could be...People should prefer local HDs (or external eSATA ones)...A full scan takes 90 seconds and with a good diskcache 7seconds ;))

Let me know if you find something which solves your issue.


Roman Scherzer

> > > well...what do you scan (MAME, iso images ;)) and what's your turned on
> > options?
> > > E.g. if you scan with sha1 checks enabled on huge files, it may take a
> > > while.....
> > > Also again, try to disable a possible virusscanner (at least for the
> > rompaths).
> > >
> > > You can't compare a scan (which does some random access/seek operations to
> the
> > > file) with an OS' copy operation
> > >
> > >
> > > Roman Scherzer
> > >
> >
> > sha1 is not enabled, and it's just my MAME set (ie. for missing on a new MAME
> > update). Is just incredibly slow for whatever reason. I remember doing it over
> > the network before and it was slow, but not this slow. I think the DLink NAS
> is
> > a piece of junk.
> >
>
>
> Hmm...could be...People should prefer local HDs (or external eSATA ones)...A
> full scan takes 90 seconds and with a good diskcache 7seconds ;))

Sure does, but then I don't have access to it across several computers.

> Let me know if you find something which solves your issue.

Might just maintain the collection on a local (well, eSATA) and then use sync software to put it on my NAS. If I don't stick it on eBay in the next 20 minutes that is.

> > > > well...what do you scan (MAME, iso images ;)) and what's your turned on
> > > options?
> > > > E.g. if you scan with sha1 checks enabled on huge files, it may take a
> > > > while.....
> > > > Also again, try to disable a possible virusscanner (at least for the
> > > rompaths).
> > > >
> > > > You can't compare a scan (which does some random access/seek operations to
> > the
> > > > file) with an OS' copy operation
> > > >
> > > >
> > > > Roman Scherzer
> > > >
> > >
> > > sha1 is not enabled, and it's just my MAME set (ie. for missing on a new
> MAME
> > > update). Is just incredibly slow for whatever reason. I remember doing it
> over
> > > the network before and it was slow, but not this slow. I think the DLink NAS
> > is
> > > a piece of junk.
> > >
> >
> >
> > Hmm...could be...People should prefer local HDs (or external eSATA ones)...A
> > full scan takes 90 seconds and with a good diskcache 7seconds ;))
>
> Sure does, but then I don't have access to it across several computers.
>
> > Let me know if you find something which solves your issue.
>
> Might just maintain the collection on a local (well, eSATA) and then use sync
> software to put it on my NAS. If I don't stick it on eBay in the next 20 minutes
> that is.
>

Returned the NAS. Piece of junk.