Hello,<br> So will it help if I have a faster processor or I add in more RAM to my system?<br><br><div><span class="gmail_quote">On 7/3/07, <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>><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>>> 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>>> 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>>>> wrote:<br>> ><br>> > On Mon, 2007-07-02 at 19:14 +0530, Rohan Kulkarni wrote:<br>> > > My motherboard supports hard disk speed of 150MB/s but i
<br>> get only<br>> > > 15MB/s speed<br>> ><br>> > Have you double-checked that the figures you're 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 case that's<br>> > important to the thread.)<br>> ><br>> > Don't send private replies to my address, the 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 second.Though my<br>> hard disk<br>> > supports native command queing my motherboard does not support
<br>> it.<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>> It doesn't matter what speed your motherboard (SATA controller)<br>> supports if the disk speed is slower. What brand/model of disk
<br>> do you<br>> have? What kernel version? How are you measuring the disk speed?<br>><br>> Regards,<br>><br>> John<br>><br>><br>><br>> Hello,<br>> I have a Seagate
ST3160211AS.It is a Barracuda 160GB 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 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>> 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>> 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><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>--<br>fedora-list mailing list<br><a href="mailto:fedora-list@redhat.com">
fedora-list@redhat.com</a><br>To unsubscribe: <a href="https://www.redhat.com/mailman/listinfo/fedora-list">https://www.redhat.com/mailman/listinfo/fedora-list</a><br></blockquote></div><br>