Date: Sun, 16 Jul 2000 17:16:35 -0700 (PDT) From: Matt Dillon <dillon@earth.backplane.com> To: Warner Losh <imp@village.org> Cc: "Jordan K. Hubbard" <jkh@zippy.osd.bsdi.com>, Peter Wemm <peter@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/usr.sbin/usbd usbd.c Message-ID: <200007170016.RAA88740@earth.backplane.com> References: <200007162248.PAA09181@earth.backplane.com> <2076.963534850@localhost> <200007162312.RAA56337@harmony.village.org>
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:: :- Jordan
::
:: AJ ? Guys, 'J' as a default to malloc.conf is a disaster for performance.
:: There are many programs which allocate large buffers and only use
:: small portions of them. We *CANNOT* ship with 'J' as a default
:: for malloc.
:
:We'll never SHIP with J as default. It is there only for -current to
:catch bugs.
:
:Warner
Oh, ok. That's different... though I'll still worry that someone
might forget to remove it for the release :-).
I use AJ for debugging, but J is nasty. For example, it cuts
the transaction performance of my databsae core in half (due
to my use of malloc() to reserve space for temporary tables, in 1MB
chunks).
-Matt
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