Date: Mon, 4 Dec 2000 14:38:40 -0800 (PST) From: opentrax@email.com To: phk@critter.freebsd.dk Cc: dwmalone@maths.tcd.ie, hackers@FreeBSD.ORG Subject: Re: M_ZERO patches. Message-ID: <200012042238.OAA08132@spammie.svbug.com> In-Reply-To: <27912.975965634@critter>
next in thread | previous in thread | raw e-mail | index | archive | help
On 4 Dec, Poul-Henning Kamp wrote: > In message <200012042128.NAA07566@spammie.svbug.com>, opentrax@email.com writes > : >>Can someone email me with a brief explaination of this M_ZERO path? >>I see it is about something to do with memory (malloc, bcopy, etc.) >> >> Thanks Jessem. > > Since a majority of malloc(9) uses immediately bzero(9) the allocation, > I added an flag to malloc(9) so one can ask for a zero'ed allocation. > > This saves a couple hundred calls to bzero(9), improves cache-locality > and generally improves code readability as a result. > > It will also allow us to operate a "idle-time-malloc(9)- zeroing-daemon" > later. > Very cool! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200012042238.OAA08132>