Date: Thu, 14 Dec 2006 09:02:40 +0800 From: "Rong-en Fan" <grafan@gmail.com> To: "Pawel Jakub Dawidek" <pjd@freebsd.org> Cc: freebsd-arch@freebsd.org Subject: Re: sysconf(3) extensions. Message-ID: <6eb82e0612131702o178bc054qdebf0b3e69a74534@mail.gmail.com> In-Reply-To: <20061101202252.GX15861@garage.freebsd.pl> References: <20061101190606.GQ15861@garage.freebsd.pl> <20061101192457.GA56970@lor.one-eyed-alien.net> <20061101194618.GT15861@garage.freebsd.pl> <20061101195952.GB56970@lor.one-eyed-alien.net> <20061101202252.GX15861@garage.freebsd.pl>
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On 11/2/06, Pawel Jakub Dawidek <pjd@freebsd.org> wrote: > On Wed, Nov 01, 2006 at 01:59:52PM -0600, Brooks Davis wrote: > > On Wed, Nov 01, 2006 at 08:46:18PM +0100, Pawel Jakub Dawidek wrote: > > > On Wed, Nov 01, 2006 at 01:24:57PM -0600, Brooks Davis wrote: > > > > On Wed, Nov 01, 2006 at 08:06:06PM +0100, Pawel Jakub Dawidek wrote: > > > > > Hi. > > > > > > > > > > I'd like to add two non-standard value to the sysconf(3) functions, > > > > > which can be found in both Solaris and Linux: _SC_PHYS_PAGES and > > > > > _SC_AVPHYS_PAGES. > > > > > > > > > > The patch is here: > > > > > > > > > > http://people.freebsd.org/~pjd/patches/sysconf.patch > > > > > > > > > > Can someone review it? Thanks. > > > > > > > > What are they for? My concern is that _SC_AVPHYS_PAGES isn't going to > > > > semantically match other platforms since in a steady state the free count > > > > is small on FreeBSD, but on other systems it swings quite a bit based on > > > > load. > > > > > > _SC_PHYS_PAGES is used by libzpool (a part of the ZFS file system). > > > _SC_AVPHYS_PAGES I used more for completness. > > > > OK. I'd be somewhat inclined to leave _SC_AVPHYS_PAGES out in that > > case, but I don't feel strongly about it. > > I've no opinion, I can remove it. What's the status of _SC_PHYS_PAGES? I'm porting mbuffer [1], which uses _SC_PHYS_PAGES. Regards, Rong-En Fan [1] http://www.maier-komor.de/mbuffer.html
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