From mboxrd@z Thu Jan 1 00:00:00 1970 From: mkl@pengutronix.de (Marc Kleine-Budde) Date: Mon, 05 Jul 2010 14:24:03 +0200 Subject: Some benchmarks on ARM In-Reply-To: <4C2E4D59.8030300@gmail.com> References: <20100702180257.GA8767@pengutronix.de> <4C2E4D59.8030300@gmail.com> Message-ID: <4C31CEE3.2050202@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Magnus Lilja wrote: > Hi Robert, > > On 2010-07-02 20:02, Robert Schwebel wrote: >> Hi, >> >> We have recently made some benchmarks, in order to get a little bit >> better fealing about where ARM cpus are today, especially when it comes >> to the "recent" ones, and in comparism to the Atom. So we collected a >> few benchmarks (most from lmbench) and did some actual measurements. >> >> Here is a little article: >> http://www.pengutronix.de/development/kernel/arm-benchmarks-20100702_en.html >> >> I'm pretty sure that there are quite a few things where people on ALKML >> have good ideas where the effects come from or how to improve the >> methodology - so I'd be glad to get some feedback from the community! > > > It would be nice if you could add the exact command lines you used > for the different tests so it's easy to run the same tests on other > boards as well. I suppose you added some flag to gcc to make use of > the floating point hardware in i.MX35? We used a compiler generating hardware floating point instruction by default: gcc was configured with: "--with-float=softfp --with-fpu=vfp --with-cpu=arm1136jf-s" here the complete output of gcc -v: Using built-in specs. Target: arm-1136jfs-linux-gnueabi Configured with: /home/frogger/pengutronix/toolchain/releases/OSELAS.Toolchain-1.99.3/platform-arm-1136jfs-linux-gnueabi-gcc-4.3.2-glibc-2.8-binutils-2.19-kernel-2.6.27-sanitized/build-cross/gcc-4.3.2/configure --target=arm-1136jfs-linux-gnueabi --with-sysroot=/home/frogger/pengutronix/toolchain/releases/OSELAS.Toolchain-1.99.3/inst/opt/OSELAS.Toolchain-1.99.3/arm-1136jfs-linux-gnueabi/gcc-4.3.2-glibc-2.8-binutils-2.19-kernel-2.6.27-sanitized/sysroot-arm-1136jfs-linux-gnueabi --disable-multilib --with-float=softfp --with-fpu=vfp --with-cpu=arm1136jf-s --enable-__cxa_atexit --disable-sjlj-exceptions --disable-nls --disable-decimal-float --disable-fixed-point --disable-win32-registry --enable-symvers=gnu --with-pkgversion=OSELAS.Toolchain-1.99.3 --with-gmp=/home/frogger/pengutronix/toolchain/releases/OSELAS.Toolchain-1.99.3/platform-arm-1136jfs-linux-gnueabi-gcc-4.3.2-glibc-2.8-binutils-2.19-kernel-2.6.27-sanitized/sysroot-host --with-mpfr=/home/frogger/pengutronix/toolchain/releases/OSELAS.Toolchain-1.99.3/platform-arm-1136jfs-linux-gnueabi-gcc-4.3.2-glibc-2.8-binutils-2.19-kernel-2.6.27-sanitized/sysroot-host --prefix=/home/frogger/pengutronix/toolchain/releases/OSELAS.Toolchain-1.99.3/inst/opt/OSELAS.Toolchain-1.99.3/arm-1136jfs-linux-gnueabi/gcc-4.3.2-glibc-2.8-binutils-2.19-kernel-2.6.27-sanitized --enable-languages=c,c++ --enable-threads=posix --enable-c99 --enable-long-long --enable-libstdcxx-debug --enable-profile --enable-shared --enable-libssp --enable-checking=release Thread model: posix gcc version 4.3.2 (OSELAS.Toolchain-1.99.3) cheers, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 260 bytes Desc: OpenPGP digital signature URL: