Date: Thu, 19 Dec 2002 16:21:40 +1100 From: Gregory Bond <gnb@itga.com.au> To: Hari Bhaskaran <subscr@spider.netmails.net> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: newfs for an fs with small files (qmail Maildir) Message-ID: <200212190521.QAA01685@lightning.itga.com.au> In-Reply-To: Your message of Wed, 18 Dec 2002 22:51:18 -0600.
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> I need to create an fs to hold thousands of small files (mails) Most mail is very small. The average size of my ~600M of (un-archived, un-compressed) mail is 7350 bytes, but this is badly skewed by a few large (multi-megabyte) files. Median file size is 4100 bytes, and almost exactly 90% of them are smaller than 8192 bytes. (Yes, I'm an mh-using packrat who's had the same homedir for 15 years. So sue me). I'd be tempted to use something like "newfs -b 4096 -f 512 -i 2048". I have had a problem on my home dir (on a Solaris 2.6 box using standard Solaris 8k/1k FFS) of getting "disk full" errors, even with heaps of space free, because there were no free blocks, only fragments. Using 16k blocks on a mail spool will almost certainly cause this sort of problem, only worse. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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