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Date: Wed, 14 Jan 2004 08:47:07 -0500
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Thread-Topic: perl malloc slow?
Thread-Index: AcPalNYFj+wPKujlQT6m/CpLCc/BGQAD50zQ
From: "Robin P. Blanchard" <robin.blanchard@gactr.uga.edu>
To: <current@freebsd.org>
Subject: RE: perl malloc slow?
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> -----Original Message-----
> From: owner-freebsd-current@freebsd.org=20
> [mailto:owner-freebsd-current@freebsd.org] On Behalf Of Holger Kipp
> Sent: Wednesday, January 14, 2004 6:51 AM
> To: kris@obsecurity.org; des@des.no
> Cc: stable@freebsd.org; current@freebsd.org
> Subject: Re: perl malloc slow?
>=20
> Kris Kennaway (kris@obsecurity.org) wrote:=20
> >
> >> This is basically a bug in Perl (poor choice of algorithm=20
> for growing=20
> >> strings).  Perl's malloc() implementation knows about and=20
> compensates=20
> >> for this bug.  FreeBSD's malloc() implementation does not.
>=20
> >I heard someone say it was fixed in perl 5.<mumble> (8?)
>=20
> As I now know, at least the perl(5.8.2) port is build with=20
> perl malloc as default.
>=20
> Sorry for starting this thread - but I learned a lot about=20
> malloc this way ;-) and with perl v5.8.2 performance is very=20
> good again!

Just another piece of possible useful information for the list...

Building mod_perl2-1.99r12 against perl-5.6.1_15 with -DWITH_PERL_MALLOC
causes apache2 to core dump; without -DWITH_PERL_MALLOC, all's well.

---------------------------------------
Robin P. Blanchard
Systems Integration Specialist
Georgia Center for Continuing Education
fon: 706.542.2404 < > fax: 706.542.6546
---------------------------------------