delorie.com/archives/browse.cgi | search |
From: | Nate Eldredge <neldredge AT hmc DOT edu> |
MIME-Version: | 1.0 |
Message-ID: | <14545.19777.671368.908549@mercury.st.hmc.edu> |
Date: | Thu, 16 Mar 2000 13:08:17 -0800 (PST) |
To: | djgpp-workers AT delorie DOT com |
Subject: | Re: Fastest integer type |
In-Reply-To: | <200003161405.TAA00904@midpec.com> |
References: | <Pine DOT SUN DOT 3 DOT 91 DOT 1000316115430 DOT 3117J-100000 AT is> |
<200003161405 DOT TAA00904 AT midpec DOT com> | |
X-Mailer: | VM 6.75 under Emacs 20.5.1 |
Reply-To: | djgpp-workers AT delorie DOT com |
Errors-To: | dj-admin AT delorie DOT com |
X-Mailing-List: | djgpp-workers AT delorie DOT com |
X-Unsubscribes-To: | listserv AT delorie DOT com |
Prashant TR writes: > Eli Zaretskii <eliz AT is DOT elta DOT co DOT il> writes: > > > > On my Pentium, 8-bits seem to be faster than the 32-bit > > > > By how much? > > The ratio of 8-bit:32-bit regs for the addition operation is > something like 140.97:102.87 on my Pentium. Any idea what the benchmark it uses is like? For instance, if it does a lot of operations on a whole block of numbers, it may be important that more 8-bit ints fit into the cache than 32-bits, even if they aren't inherently faster. > Seems like there's quite a bit of difference here. IMHO 8-bit > (signed char) can be used. -- Nate Eldredge neldredge AT hmc DOT edu
webmaster | delorie software privacy |
Copyright © 2019 by DJ Delorie | Updated Jul 2019 |