Date: Mon, 26 May 1997 20:53:20 +0800 (CST) From: grog@FreeBSD.ORG To: bsdchat@shadows.aeon.net (mika ruohotie) Cc: chat@FreeBSD.ORG (FreeBSD Chat) Subject: Re: Pentium II-266Mhz Message-ID: <199705261253.UAA00645@papillon.lemis.com> In-Reply-To: <199705260701.KAA02064@shadows.aeon.net> from mika ruohotie at "May 26, 97 10:01:12 am"
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mika ruohotie writes: >>> 8:13pm crh> dd if=/dev/zero of=/dev/null bs=1m count=1000 >>> 1000+0 records in >>> 1000+0 records out >>> 1048576000 bytes transferred in 9.969560 secs (105177762 bytes/sec) >>> >>> 8:14pm crh> dd if=/dev/zero of=/dev/null bs=128k count=8000 >>> 8000+0 records in >>> 8000+0 records out >>> 1048576000 bytes transferred in 4.389535 secs (238880886 bytes/sec) > > pluto# dd if=/dev/zero of=/dev/null bs=1m count=1000 > 1000+0 records in > 1000+0 records out > 1048576000 bytes transferred in 8.786672 secs (119337105 bytes/sec) > pluto# dd if=/dev/zero of=/dev/null bs=128k count=8000 > 8000+0 records in > 8000+0 records out > 1048576000 bytes transferred in 8.661279 secs (121064798 bytes/sec) > > just a thought here... which motherboard you used? > > my test is gigabyte ga586hx512, and as far as i see this, the board/chipset > is faster in pci performance, but ofcourse, coz of external l2, it's slower > in that... OK, is this really *the* performance measurement? I'm sitting here in my hotel room in Beijing with a seriously underpowered AcerNote Light (75 MHz Pentium, allegedly (and I can believe it) with no cache), and I get: === grog@papillon (/dev/ttyp3) ~ 7 -> dd if=/dev/zero of=/dev/null bs=1m count=1000 1000+0 records in 1000+0 records out 1048576000 bytes transferred in 17.784494 secs (58960125 bytes/sec) === grog@papillon (/dev/ttyp3) ~ 8 -> dd if=/dev/zero of=/dev/null bs=128k count=8000 8000+0 records in 8000+0 records out 1048576000 bytes transferred in 17.022243 secs (61600343 bytes/sec) === grog@papillon (/dev/ttyp3) ~ 9 -> Sure, it's noticably slower, but not as much as I would have hoped for your sake. Greg
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