Date: Thu, 21 Oct 2004 18:50:33 +0200 From: fandino <fandino@ng.fadesa.es> To: freebsd-current@freebsd.org Subject: Re: FreeBSD 5.3b7and poor ata performance Message-ID: <4177E8D9.7070303@ng.fadesa.es> In-Reply-To: <20041021154057.GB640@xor.obsecurity.org> References: <41715E7F.7060509@ng.fadesa.es> <20041018100045.f8koww0skcco0woo@www.sweetdreamsracing.biz> <4173D66F.6010200@DeepCore.dk> <4173F2E9.7010407@ng.fadesa.es> <417406E3.9010706@DeepCore.dk> <4174FD04.8040000@ng.fadesa.es> <20041019104525.ikgw8kcw8sw480os@www.sweetdreamsracing.biz> <41753A8F.4040809@ng.fadesa.es> <6.1.2.0.0.20041019121353.026745f8@64.7.153.2> <417766B0.1020409@ng.fadesa.es> <20041021154057.GB640@xor.obsecurity.org>
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Kris Kennaway wrote: >>OpenBSD 3.5: >>dd if=3D/mnt/aa of=3D/dev/null bs=3D1024k count=3D1024 >>1073741824 bytes transferred in 18.743 secs (57287584 bytes/sec) >> >>FreeBSD 5.3rc1: >># dd if=3D/mnt/aa of=3D/dev/null bs=3D1024k count=3D1024 >>1073741824 bytes transferred in 42.215597 secs (25434719 bytes/sec) > BTW, others have asked that you not use dd as your "benchmark", > because it's not benchmarking anything relevant for real-world use of > the disk. I posted the results of bonnie++ tests two days ago. (fbsd2.txt and obsd.= txt at the bottom) http://lists.freebsd.org/pipermail/freebsd-current/2004-October/040567.ht= ml also I did copies of large mpeg files (sequential read) which were a real pain to process because disks were very slow (as slow as dd tests). I will do all tests that you need to demostrate the problem, just tell me which test you want to do. Now, I'm waiting to S=F8ren. He is the one who can find a bug like this. Regards.
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