Date: Fri, 19 Feb 1999 10:18:34 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: SANETO Takanori <sanewo@ba2.so-net.ne.jp> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: mfs behaviour change in last couple months? Message-ID: <199902191818.KAA00831@apollo.backplane.com> References: <199902191542.AAA24794@mail.ba2.so-net.ne.jp>
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:I have 128MB of memory and 700MB of swap area on my PC.
:
:I have 190MB of mfs, fstab entry of which is as follows:
:
:swap /tmp mfs rw,-s=380000 0 0
:
:Recently (since the end of last year, I guess) I noticed that when
:mounting mfs, heavy disk I/O occurs. It seems that mfs's VM space is
:swapped (or paged) out when it is invoked (or when mfs newfs'es its VM
:space).
:
:Could it be because of an mfs implementation change? VM?
:
:Any ideas?
:--
:Takanori "Roy" Saneto <URL:mailto:sanewo@ba2.so-net.ne.jp>
There haven't been any changes specific to making it swap on
startup. I've got a 300MB MFS partition and haven't noticed any
heavy disk activity on startup.
You could try reducing the number of pages mount_mfs touches when
it newfs's the filesystem by specifying a higher bytes/inode ratio
and playing with other insundry options.
-Matt
Matthew Dillon
<dillon@backplane.com>
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