Re: 500 byte frames: Just my Microdata clients. Mark Johnson ----- Original Message ----- From: "Stewart Leicester" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, September 04, 2005 8:36 PM Subject: Re: [U2] Prime number file modulos
> From: "Dan Fitzgerald" <[EMAIL PROTECTED]> > > >Tuning file sizes is vitally important. If you have an average item > >size of, say, 1700 bytes, and a sep of 1, then even if you pick a > >very good modulus, it will take 4 disk reads to retrieve the data. > >If you have a bad modulus on top of that, like 101 when you need > >10007, it will take around 400 disk reads to retrieve each item. You > >and your users will notice this. Additionally, as mentioned earlier, > >this exposes you to a greater risk of file corruption. If you have > >1000 links to overflow in a file, you are 1000 times as likely to > >get a bad link than someone who has 1 link. And that's before you > >start thinking about how you're affecting MTBF by artificially > >hammering your disks that way. > > I thought 500-byte frames were a thing of the past. Is anyone still using them? > > Stewart > -- > Stewart Leicester | JenSoft Technologies, LLC > "Per Ardua Ad Astra" | <mailto:[EMAIL PROTECTED]> > ------- > u2-users mailing list > [email protected] > To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list [email protected] To unsubscribe please visit http://listserver.u2ug.org/
