Date: Fri, 14 Dec 2001 11:34:12 -0600 From: Alfred Perlstein <bright@mu.org> To: GB Clark II <gclarkii@vsservices.com> Cc: hackers@FreeBSD.ORG Subject: Re: shared mem and locking it in core (Database usage) Message-ID: <20011214113412.K79896@elvis.mu.org> In-Reply-To: <01121315261800.27037@prime.vsservices.com>; from gclarkii@vsservices.com on Thu, Dec 13, 2001 at 03:26:18PM -0600 References: <01121315261800.27037@prime.vsservices.com>
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* GB Clark II <gclarkii@vsservices.com> [011214 06:28] wrote:
> Hello,
>
> I'm running PostgreSQL and it uses SysV shared mem for alot of its functions.
>
> How can verify that the shared mem is wired and not pageable?
>
> sysctl settings:
> kern.ipc.shmmax: 128004097
> kern.ipc.shmmin: 1
> kern.ipc.shmmni: 512
> kern.ipc.shmseg: 1024
> kern.ipc.shmall: 31251
> kern.ipc.shm_use_phys: 1 <- This wires the mem right?
>
> Yes postgres shows to be 119M via top, but is this mem wired?
As long as you set the sysctl before starting postgresql, then
yes.
--
-Alfred Perlstein [alfred@freebsd.org]
'Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.'
http://www.morons.org/rants/gpl-harmful.php3
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