Date: Mon, 25 Oct 2004 11:53:25 GMT From: Ville-Pertti Keinonen <will@iki.fi> To: freebsd-gnats-submit@FreeBSD.org Subject: amd64/73111: Optimized libc string functions missing for amd64 Message-ID: <200410251153.i9PBrPUf026369@www.freebsd.org> Resent-Message-ID: <200410251200.i9PC0v0h087177@freefall.freebsd.org>
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>Number: 73111 >Category: amd64 >Synopsis: Optimized libc string functions missing for amd64 >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-amd64 >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Mon Oct 25 12:00:56 GMT 2004 >Closed-Date: >Last-Modified: >Originator: Ville-Pertti Keinonen >Release: 6.0-current >Organization: >Environment: >Description: Using optimized assembly language versions of string functions on amd64 (this is already done on other architectures) would probably be a good idea. Functions adapted from NetBSD (which can be extracted into /usr/src for inclusion in a buildworld) are available at the following URL: http://will.iki.fi/patches/libc-amd64-string.tar.gz I mentioned the issue on -current, but this didn't result in any discussion. The NetBSD functions may or may not all be desirable in their current form; some of the functions have extensive unrolling and may produce a performance penalty for short strings (but a huge advantage for longer ones). >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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