Date: Sun, 7 Jul 2013 04:33:44 -0700 From: Jeremy Chadwick <jdc@koitsu.org> To: "Matthew D. Fuller" <fullermd@over-yonder.net> Cc: "freebsd-stable@freebsd.org Stable" <freebsd-stable@freebsd.org> Subject: Re: make buildworld is now 50% slower Message-ID: <20130707113344.GA53765@icarus.home.lan> In-Reply-To: <20130707104731.GA13386@over-yonder.net> References: <E1Uv1lv-0000wY-9K@kabab.cs.huji.ac.il> <CE93BC6C-31DE-4549-B257-004D3DFE4294@FreeBSD.org> <20130705145839.GB5449@icarus.home.lan> <E1Uvkft-0007jb-O6@kabab.cs.huji.ac.il> <20130707101714.GA51445@icarus.home.lan> <20130707104731.GA13386@over-yonder.net>
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On Sun, Jul 07, 2013 at 05:47:31AM -0500, Matthew D. Fuller wrote:
> Apropos of nothing, but...
>
> On Sun, Jul 07, 2013 at 03:17:14AM -0700 I heard the voice of
> Jeremy Chadwick, and lo! it spake thus:
> >
> > WITHOUT_LIB32=true
>
> suggests you're running amd64, which I'm pretty sure means
>
> > - I do increase kern.maxdsiz, kern.dfldsiz, and kern.maxssiz in
> > /boot/loader.conf to 2560M/2560M/256M respectively, but that was mainly
> > from the days when I ran MySQL and needed a huge userland processes.
>
> are not necessarily _in_creases, and may well be mostly _de_creases.
> e.g., on a RELENG_9 box with 8 gig of physical RAM:
>
> % sysctl kern.{max{d,s},dfld}siz
> kern.maxdsiz: 34359738368
> kern.maxssiz: 536870912
> kern.dfldsiz: 134217728
>
> while a -CURRENT box with 16 has dfldsiz blown all the way up too. I
> don't recall doing anything to change them at all recently, and a
> glance over loader.conf, sysctl.conf, rc.local, and the kernel configs
> doesn't turn up anything.
Thanks!
The settings I mention are from "ancient times" -- specifically RELENG_6
on i386 (I know because I found an old mailing list post of mine
discussing the settings with a user).
The problem as I said was that mysqld would crap itself (crash and be
quite loud about it) if the process allocated too much memory/became too
large. I am fairly certain the issue related to the data size, **not**
the stack size (but I didn't see the harm in increasing that either).
It's good to know I can remove these on amd64. Yay, one less thing in
loader.conf I have to deal with... :-) Thanks again!
--
| Jeremy Chadwick jdc@koitsu.org |
| UNIX Systems Administrator http://jdc.koitsu.org/ |
| Making life hard for others since 1977. PGP 4BD6C0CB |
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