Date: Mon, 9 Sep 2013 04:56:14 +0800 From: Jia-Shiun Li <jiashiun@gmail.com> To: Zbigniew Bodek <zbb@semihalf.com> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: stream benchmarking on RPi Message-ID: <CAHNYxxMuq3hPmhUJFQMcyNvavSnEqN4_T=zJnDEE5EtDasBb9A@mail.gmail.com> In-Reply-To: <CAG7dG%2BwBN6qEsYgkVD54-Q3hDy8T%2B6q1p1TvQegj=--F-U-utQ@mail.gmail.com> References: <CAHNYxxNtBcjD_Khq1_pYCMdPwZJmQ0M_GTmcaGWtoLOJkz_86g@mail.gmail.com> <CAG7dG%2Bxn9yCCPn30SXWnC6ppYkoWCjTKhBtgwcH-s46wHAdCJA@mail.gmail.com> <CAHNYxxM74n1XaQ5Hf4oi9z9QA3bWC-ivmU8v0Jv-yD%2BgS2dkYQ@mail.gmail.com> <CAG7dG%2BwBN6qEsYgkVD54-Q3hDy8T%2B6q1p1TvQegj=--F-U-utQ@mail.gmail.com>
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On Sun, Sep 8, 2013 at 4:11 AM, Zbigniew Bodek <zbb@semihalf.com> wrote: > 2013/9/6 Jia-Shiun Li <jiashiun@gmail.com> > Hello Jia-Shiun. > > I was looking for similar benchmark that will not depend on floating point > and I found this: > http://alasir.com/software/ramspeed/ > > The idea seems to be the same as the stream benchmark but you have option to > not use FP. > I've actually made some tests on my ARM and here are the results (default > benchmark settings): So for now it is still not suitable for fp-intensive work. Fortunately I guess most people won't do that on RPi. Still, thank you all for the info and your hard work on ARM. FYR ramspeed result on RPi. No clang results because it is clever enough to optimize all works away even with -O. ;) jsli@raspberry-pi:~/ramspeed-2.6.0 % time ./ramspeed -b 3 -g 1 RAMspeed (GENERIC) v2.6.0 by Rhett M. Hollander and Paul V. Bolotoff, 2002-09 1Gb per pass mode INTEGER Copy: 190.51 MB/s INTEGER Scale: 185.59 MB/s INTEGER Add: 163.58 MB/s INTEGER Triad: 162.43 MB/s --- INTEGER AVERAGE: 175.53 MB/s 61.889u 4.631s 1:09.55 95.6% 25+167k 0+0io 0pf+0w jsli@raspberry-pi:~/ramspeed-2.6.0 % time ./ramspeed -b 6 -g 1 RAMspeed (GENERIC) v2.6.0 by Rhett M. Hollander and Paul V. Bolotoff, 2002-09 1Gb per pass mode FL-POINT Copy: 222.57 MB/s FL-POINT Scale: 28.49 MB/s FL-POINT Add: 65.74 MB/s FL-POINT Triad: 16.43 MB/s --- FL-POINT AVERAGE: 83.31 MB/s 317.004u 4.545s 5:36.72 95.4% 25+166k 0+0io 0pf+0w Jia-Shiun.
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