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Re: [Sks-devel] How long to dump database
From: |
Yaron M. Minsky |
Subject: |
Re: [Sks-devel] How long to dump database |
Date: |
Sun, 22 Feb 2004 14:37:56 -0500 |
This is on a "fastbuild"-built database, right? The dump, if I remember
correctly, doesn't optimize for the kind of database, and so if it's a
fastbuild database, it ends up jumping around between the files
willy-nilly. That's VERY slow. You can do a differential dump, which
only dumps the keys not in the original database. The new files
combiend with the old files then give you a complete (although
redundant) dump. I should probably do a version that does an efficient
dump of the whole thing, but I just haven't gotten around to it.
How much demand is there for this feature? How many people would be
interested?
y
On Sun, 2004-02-22 at 11:43, Pramberger Peter wrote:
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> Hi all!
>
> I'm just wondering how long it usually takes to dump the full database
> (~1971100 keys)?
>
> My server works approx. 1,5h on "sks dump 30000" which seems a little
> bit long for me. Well it is not the newest system (2x PIII 500MHz, 1GB),
> but is the dump really such CPU intensive? I can't imagine this is SCSI
> related (2x RAID1).
>
> Has anyone some timings to compare? Have I missed some memory usage
> parameters to sks?
>
>
> Thx,
> Peter
>
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--
|--------/ Yaron M. Minsky \--------|
|--------\ http://www.cs.cornell.edu/home/yminsky/ /--------|
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