--- Enrique Bory Simon <[EMAIL PROTECTED]> wrote: > I belive is something slowly the "Timing buffered > disk reads" !! > just 9.61 MB/sec , with IDE disk ? and with machine > !!! I belive it most be > better ! > > look it: > hdparm -Tt /dev/hda > > /dev/hda: > Timing buffer-cache reads: 128 MB in 0.23 > seconds =556.52 MB/sec > Timing buffered disk reads: 64 MB in 2.26 seconds > = 28.32 MB/sec
This second reading (timing buffered disk reads) with doing some adjustments with hdparm, I have gotten to be as high as 96-100 MB/sec without a load. With a load this reading is at times as low as 2.5-2.7 MB/sec. Nothing has changed and all settings from 'hdparm -i /dev/hda' show the settings are still the same as before. The hard drive is a UDMA device. The CPUs have not breaken a sweat according to 'top'. However, the load average floats between 40-80. I know this is related to the drive activity. As soon as the load average drops in the middle of the night to around 10-15 things seem ok for a while. > > I was over a regular PC P4 at 1Gz , with a IDE > disk 40 GB > > ----- Original Message ----- > From: "Richard Head" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, May 28, 2003 11:51 PM > Subject: Hard Drive Issues with RH9.0 > > > > I have RH9.0 installed on a mail server. It is > > currently having issues with the hard drive > keeping up > > with the demand of file I/O. The following is the > > hardware in the server: > > > > 1) Dual Intel Xeon 2.40GHz CPUs. > > 2) Intel PIIX4 Ultra 100 onboard IDE controller. > > 3) Western Digital (WD2000JB-00DUA0) 200 gig IDE > HD. > > > > Right now I get the following results from 'hdparm > -tT > > /dev/hda': > > > > /dev/hda: > > Timing buffer-cache reads: 128 MB in 0.31 > seconds > > =412.90 MB/sec > > Timing buffered disk reads: 64 MB in 6.66 > seconds = > > 9.61 MB/sec > > > > With running a mail server on this server, there > are > > frequent times the server will seem like it is > taking > > a break with all of the disk I/O. > > Is there anything I can do to speed things up? The > > hard drive is capable of handling the load. I just > do > > not think something is not setup correctly. > > > > Can someone please give me some insite? If there > is > > other information you need, please let me know. > > > > Thanks in advance, > > Goofy > > > > __________________________________ > > Do you Yahoo!? > > Yahoo! Calendar - Free online calendar with sync > to Outlook(TM). > > http://calendar.yahoo.com > > > > > > -- > > redhat-list mailing list > > unsubscribe > mailto:[EMAIL PROTECTED] > > > https://www.redhat.com/mailman/listinfo/redhat-list > > > > > -- > redhat-list mailing list > unsubscribe > mailto:[EMAIL PROTECTED] > https://www.redhat.com/mailman/listinfo/redhat-list __________________________________ Do you Yahoo!? Yahoo! Calendar - Free online calendar with sync to Outlook(TM). http://calendar.yahoo.com -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
