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From: Tom Lord <lord@emf.net>
To: duchier@ps.uni-sb.de
Cc: gnu-arch-users@gnu.org, gnu-arch-dev@lists.seyza.com,
	git@vger.kernel.org
Subject: Re: [ANNOUNCEMENT] /Arch/ embraces `git'
Date: Wed, 20 Apr 2005 16:04:00 -0700 (PDT)	[thread overview]
Message-ID: <200504202304.QAA17069@emf.net> (raw)
In-Reply-To: <877jixfjxw.fsf@star.lifl.fr> (duchier@ps.uni-sb.de)




   From: duchier@ps.uni-sb.de

Thank you for your experiment.  I'm not surprised by the 
result but it is very nice to know that my expectations
are right.

I think that to a large extent you are seeing artifacts
of the questionable trade-offs that (reports tell me) the
ext* filesystems make.   With a different filesystem, the 
results would be very different.

I'm imagining a blob database containing may revisions of the linux
kernel.  It will contain millions of blobs.

It's fine that some filesystems and some blob operations work fine
on a directory with millions of files but what about other operations
on the database?   I pity the poor program that has to `readdir' through
millions of files.

That said: I may add an optional flat-directory format to my library,
just to avoid issues such as those you raise over the next couple 
years.

-t

  parent reply	other threads:[~2005-04-20 23:01 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-20 10:00 [ANNOUNCEMENT] /Arch/ embraces `git' Tom Lord
2005-04-20 10:19 ` Miles Bader
2005-04-20 17:15 ` duchier
2005-04-20 22:40   ` [Gnu-arch-users] Re: [GNU-arch-dev] " Tomas Mraz
2005-04-21  9:09     ` Denys Duchier
2005-04-21 10:21       ` Tomas Mraz
2005-04-21 11:46         ` [Gnu-arch-users] " duchier
2005-04-20 22:51   ` Tomas Mraz
2005-04-21 19:04     ` Tom Lord
2005-04-21 20:35     ` [Gnu-arch-users] Re: [GNU-arch-dev] " Tom Lord
2005-04-20 23:04   ` Tom Lord [this message]
2005-04-21  0:05     ` Denys Duchier
2005-04-21 20:39       ` [Gnu-arch-users] " Tom Lord
2005-04-21  7:49     ` Tomas Mraz
2005-04-21 21:51       ` [Gnu-arch-users] Re: [GNU-arch-dev] " Tom Lord
2005-04-21 21:52       ` Tom Lord
2005-04-22 16:13       ` Linus Torvalds
2005-04-22 17:39         ` Edésio Costa e Silva
2005-04-20 21:31 ` Petr Baudis
2005-04-20 21:55   ` C. Scott Ananian
2005-04-20 22:22     ` chunking (Re: [ANNOUNCEMENT] /Arch/ embraces `git') Linus Torvalds
2005-04-20 23:42       ` C. Scott Ananian
2005-04-22 21:02       ` blowing chunks (quick update) C. Scott Ananian
  -- strict thread matches above, loose matches on Subject: below --
2005-04-20  9:58 [ANNOUNCEMENT] /Arch/ embraces `git' Tom Lord

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