<br><br><div><span class="gmail_quote">On 7/5/07, <b class="gmail_sendername">John Wendel</b> <<a href="mailto:john.wendel@metnet.navy.mil">john.wendel@metnet.navy.mil</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Rohan Kulkarni wrote:<br>> Hello,<br>> So will it help if I have a faster processor or I add in more<br>> RAM to my system?<br>><br>> On 7/3/07, *John Wendel* < <a href="mailto:john.wendel@metnet.navy.mil">
john.wendel@metnet.navy.mil</a><br>> <mailto:<a href="mailto:john.wendel@metnet.navy.mil">john.wendel@metnet.navy.mil</a>>> wrote:<br>><br>> Rohan Kulkarni wrote:<br>> ><br>> ><br>
> > On 7/3/07, *Rohan Kulkarni* < <a href="mailto:rohan.ak1@gmail.com">rohan.ak1@gmail.com</a><br>> <mailto:<a href="mailto:rohan.ak1@gmail.com">rohan.ak1@gmail.com</a>><br>> > <mailto:
<a href="mailto:rohan.ak1@gmail.com">rohan.ak1@gmail.com</a> <mailto:<a href="mailto:rohan.ak1@gmail.com">rohan.ak1@gmail.com</a>>>> wrote:<br>> ><br>> ><br>> ><br>> > On 7/2/07, *John Wendel* <
<a href="mailto:john.wendel@metnet.navy.mil">john.wendel@metnet.navy.mil</a><br>> <mailto:<a href="mailto:john.wendel@metnet.navy.mil">john.wendel@metnet.navy.mil</a>><br>> > <mailto:<a href="mailto:john.wendel@metnet.navy.mil">
john.wendel@metnet.navy.mil</a><br>> <mailto:<a href="mailto:john.wendel@metnet.navy.mil">john.wendel@metnet.navy.mil</a>>>> wrote:<br>> ><br>> > Rohan Kulkarni wrote:<br>> > >
<br>> > ><br>> > > On 7/2/07, *Tim* <<a href="mailto:ignored_mailbox@yahoo.com.au">ignored_mailbox@yahoo.com.au</a><br>> <mailto:<a href="mailto:ignored_mailbox@yahoo.com.au">
ignored_mailbox@yahoo.com.au</a>><br>> > <mailto: <a href="mailto:ignored_mailbox@yahoo.com.au">ignored_mailbox@yahoo.com.au</a><br>> <mailto:<a href="mailto:ignored_mailbox@yahoo.com.au">
ignored_mailbox@yahoo.com.au</a>>><br>> > > <mailto:<a href="mailto:ignored_mailbox@yahoo.com.au">ignored_mailbox@yahoo.com.au</a><br>> <mailto:<a href="mailto:ignored_mailbox@yahoo.com.au">
ignored_mailbox@yahoo.com.au</a>><br>> > <mailto: <a href="mailto:ignored_mailbox@yahoo.com.au">ignored_mailbox@yahoo.com.au</a><br>> <mailto:<a href="mailto:ignored_mailbox@yahoo.com.au">
ignored_mailbox@yahoo.com.au</a>>>>> wrote:<br>> > ><br>> > > On Mon, 2007-07-02 at 19:14 +0530, Rohan Kulkarni<br>> wrote:<br>> > > > My motherboard supports hard disk speed of
<br>> 150MB/s but i<br>> > get only<br>> > > > 15MB/s speed<br>> > ><br>> > > Have you double-checked that the figures you're
<br>> reading at<br>> > are bits per<br>> > > second or bytes per second?<br>> > ><br>> > > --<br>> > > (This box runs FC5, my others run FC4 & FC6, in
<br>> case that's<br>> > > important to the thread.)<br>> > ><br>> > > Don't send private replies to my address, the<br>> mailbox is
<br>> > ignored.<br>> > > I read messages from the public lists.<br>> > ><br>> > ><br>> > ><br>> > > Hello,
<br>> > > Yes I have checked with the motherboard<br>> > specifications.It<br>> > > says that it supports<br>> > > a speed of 150MB/s.It is bytes for
<br>> second.Though my<br>> > hard disk<br>> > > supports native command queing my motherboard does not<br>> support<br>> > it.<br>> > >
<br>> > > --<br>> > > fedora-list mailing list<br>> > > <a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a><br>> <mailto:
<a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a>> <mailto: <a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a><br>> <mailto:<a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com
</a>>><br>> > <mailto: <a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a><br>> <mailto:<a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a>> <mailto:
<a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a><br>> <mailto:<a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a>>>><br>> > > To unsubscribe:<br>
> > <a href="https://www.redhat.com/mailman/listinfo/fedora-list">https://www.redhat.com/mailman/listinfo/fedora-list</a><br>> > > < <a href="https://www.redhat.com/mailman/listinfo/fedora-list">
https://www.redhat.com/mailman/listinfo/fedora-list</a>><br>> > ><br>> > ><br>> ><br>> > It doesn't matter what speed your motherboard (SATA
<br>> controller)<br>> > supports if the disk speed is slower. What brand/model of<br>> disk<br>> > do you<br>> > have? What kernel version? How are you measuring the disk
<br>> speed?<br>> ><br>> > Regards,<br>> ><br>> > John<br>> ><br>> ><br>> ><br>> > Hello,<br>> > I have a Seagate
ST3160211AS.It is a Barracuda 160GB<br>> hard<br>> > disk with a<br>> > speed of 7200RPM.It supports upto 300MB/s with Native<br>> > Command Queing.I checked the average speed of copying by
<br>> copying a<br>> > 3GB file from one FAT32 partition to another.I got a<br>> > average speed of around<br>> > 15MB/s.I have the kernel 2.6.21-1.3228.fc7
<br>> > Thanks...<br>><br>> ><br>> ><br>> ><br>> > Can anyone please help me...do i need to update to the latest
<br>> > kernel??or do i need<br>> > to download some drivers.<br>> ><br>> > --<br>> > fedora-list mailing list<br>> > <a href="mailto:fedora-list@redhat.com">
fedora-list@redhat.com</a> <mailto:<a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a>><br>> <mailto:<a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a> <mailto:<a href="mailto:fedora-list@redhat.com">
fedora-list@redhat.com</a>>><br>> > To unsubscribe:<br>> > <a href="https://www.redhat.com/mailman/listinfo/fedora-list">https://www.redhat.com/mailman/listinfo/fedora-list</a><br>
> > <<a href="https://www.redhat.com/mailman/listinfo/fedora-list">https://www.redhat.com/mailman/listinfo/fedora-list</a>><br>> ><br>> ><br>> ><br>><br>> You don't really have a problem!
<br>><br>> Don't confuse the maximum interface transfer speed (150 MB/s) with<br>> your disk transfer speed (approx 40-50 MB/s).<br>><br>> When you copy a file, you read the old file, and then you write the
<br>> new file, rinse and repeat until done. So your transfer speed is going<br>> to be approximately 1/2 to disk speed. And now you need to add in the<br>> operating system overhead, allocating blocks for the new file, and all
<br>> the seek time, moving the disk heads between the old file blocks and<br>> the new file blocks.<br>><br>> 15 MB/s seems reasonable. On my box, using a single drive, I get a<br>> write speed of 30 MB/s for a 3 GB file and a copy speed of 14 MB/s.
<br>><br>> Need more speed, get more disks and a raid controller.<br>><br>> Regards,<br>><br>> John<br><br>Faster processor can help lots of things, but not disk speed. More<br>memory (usually) helps, the kernel can use it for disk cache if
<br>nothing else.<br><br>Anybody else out there got any advice for speeding up SATA drives ?<br><br>Regards,<br><br>John</blockquote><div><br><br>Hello,<br> My SATA drive provides me a copy speed of only 15MB/s while one of my friends using
<br> opensuse 10.2 with an Intel P4 and a Seagate SATA 80GB HDD gets almost double the<br> copy speed.I use Fedora 7.Why is there such a large speed difference?<br> Thank you
<br> <br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">--<br>fedora-list mailing list<br><a href="mailto:fedora-list@redhat.com">
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