Messages in this thread | | | From | "Stephen C. Tweedie" <> | Date | Mon, 31 May 1999 19:58:14 +0100 (BST) | Subject | Re: Quota file format proposal |
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Hi,
On Fri, 28 May 1999 11:01:04 +0200, Jan Kara <jack@atrey.karlin.mff.cuni.cz> said:
>> OK, it'll be slower than reserving an entry for every possible uid or >> gid and thus being able to go straight to the relevant record, but on >> the other hand, it can take up considerably less disc space since only >> the records for uid's or gid's with access to that partition need be >> stored in its quota file. It's not even much of a slowdown either. > It won't be much slower that current implementation as it climbs tree. But > this is hidden in ext2 implementation :-). I see the main problem in inserts > and deletes. I agree they are not very often but spending 2 seconds on one > insert seems too much to me :-). I'm searching the net for some interresting > structures :-).
Why bother? The quota file can already be sparse.
~ $ ls -l /local/home/*quota* -rw------- 1 root root 16032 Sep 21 1998 /local/home/quota.group -rw------- 1 root root 16096 Mar 22 13:07 /local/home/quota.user ~ $ du /local/home/*quota* 13 /local/home/quota.group 17 /local/home/quota.user ~ $
--Stephen
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