From mboxrd@z Thu Jan 1 00:00:00 1970 From: dexen deVries To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Date: Wed, 3 Aug 2011 15:42:28 +0200 User-Agent: KMail/1.13.6 (Linux/3.0.0-l35+; KDE/4.5.5; x86_64; ; ) References: <8a5ab6631b9767218fac1c48e0a2ccd2@brasstown.quanstro.net> <201108030755.28900.dexen.devries@gmail.com> <49ccb17004fa073b227cafb46a8fc9db@brasstown.quanstro.net> In-Reply-To: <49ccb17004fa073b227cafb46a8fc9db@brasstown.quanstro.net> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201108031542.28554.dexen.devries@gmail.com> Subject: Re: [9fans] cheep ssds Topicbox-Message-UUID: 0b9c05be-ead7-11e9-9d60-3106f5b1d025 On Wednesday 03 of August 2011 15:16:00 erik quanstrom wrote: > i think the speed ratio of 2:1 is not correct. >=20 > first, you must be assuming udma 133. i have never seen a udma 133 targe= t. > =09 http://www.newegg.com/Product/ProductList.aspx?Submit=3DProperty&Subcategory > =3D14&Description=3D&Type=3D&N=3D100007603&IsNodeId=3D1&srchInDesc=3D&Min= Price=3D&MaxPric > e=3D&PropertyCodeValue=3D359%3A7788 >=20 > the fastest udma device i can find is udma 100. this is not 100mhz, it's > 100mb/s. where as 3.0gb sata is 3.0gb/s / 10 bits/byte =3D 300mb/s. > that's 3x, not 2x. (both are in decimal, as you can calculate from the > udma cycle time of 40ns, double-pumped). and of course sata 6.0gb is > 6x faster than pata. thanks for the correction and please excuse my post; it was an early-mornin= g=20 brain-fart :^) =2D-=20 dexen deVries [[[=E2=86=93][=E2=86=92]]] =46or example, if the first thing in the file is: an XML parser will recognize that the document is stored in the traditional= =20 ROT13 encoding. (( Joe English, http://www.flightlab.com/~joe/sgml/faq-not.txt ))