Date: Wed, 11 Aug 2004 17:22:20 +0200 From: Andre Oppermann <andre@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: UMA questions Message-ID: <411A39AC.30707@freebsd.org> In-Reply-To: <411A3755.6030507@freebsd.org> References: <411A3755.6030507@freebsd.org>
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Andre Oppermann wrote:
> I have a couple of questions regarding UMA things which are not
> explained in
> the relevant man pages (and UTSL is a little bit tough):
>
> 1. UMA zones do not show up in the output of 'vmstat -m'. Is there a way
> to get information on how much memory each UMA zone is using?
> Example: "sackhole", "tcptw", ...
>
> 2. What does the flag UMA_ZONE_ZINIT do exactly?
>
> 3. What does the flag UMA_ZONE_NOFREE prevent exactly? Will it prevent any
> zone/slab of this type to be free'd ever again? This way the zone can
> only grow and not shrink after transient peaks?
4. What does the flag UMA_ZONE_STATIC do exactly? I was under the impression
that zones are fixed sized by definition and don't need this to be specified
additionally.
--
Andre
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