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Date:      Tue, 24 Jul 2001 20:55:13 -0700
From:      "David O'Brien" <obrien@freebsd.org>
To:        Mike Silbersack <silby@silby.com>
Cc:        arch@freebsd.org, Bosko Milekic <bmilekic@technokratis.com>, Matt Dillon <dillon@earth.backplane.com>, "David O'Brien" <nobody@nuix.com>
Subject:   Re: cvs commit: src/sys/netinet tcp_usrreq.c
Message-ID:  <20010724205513.H5825@dragon.nuxi.com>
In-Reply-To: <20010718214902.H6519-100000@achilles.silby.com>; from silby@silby.com on Wed, Jul 18, 2001 at 10:04:45PM -0500
References:  <20010718121851.B26558@dragon.nuxi.com> <20010718214902.H6519-100000@achilles.silby.com>

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On Wed, Jul 18, 2001 at 10:04:45PM -0500, Mike Silbersack wrote:
> I think you're right in increasing the number of mbufs, but changing the
> scaling factor is probably the wrong way to do it; it will cause people
> with custom kernels to have many thousands more mbufs than they expect.
> 
> In 4.x, the setting is currently at:
> (512 + MAXUSERS * 16)
> 
> current was
> (1024 + MAXUSERS * 16)
> 
> before your scaling change (to * 64).
> 
> How about we instead change the constant amount, to perhaps:
> (2048 + MAXUSERS * 16)

I am open to this change, but would like see others comment also on this
proposal.

> (I'd like to do the scaling based on RAM size,
> but I don't have time at the moment.)

Agreed.  I started on a set of diffs, but have not had time to finish
them and test them.
 
> Note that if we're increasing this, we should probably increase
> maxfiles/sockets - that's probably more important now.

Any one else with an opinion on this?

-- 
-- David  (obrien@FreeBSD.org)

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