<p dir="ltr">Try hdparm -Tt /dev/sda and see what you get . It does a read transfer test.</p>
<div class="gmail_quote">On Aug 24, 2013 5:39 PM, "Alex Carver" <<a href="mailto:agcarver%2Bale@acarver.net">agcarver+ale@acarver.net</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I started revisiting some of the performance issues with one of my systems (slow startup of any program) and removing anything that may have interfered (HAL, fuse, etc., removing atime) so now I'm down to basic disk access. Using iotop, it seems the disk is running slower than I recall (transfer rates of about 200 K/s).<br>
<br>
I'd appreciate any suggestions on areas to look short of a wipe and reload (I don't currently have spare drives) but any other performance checks and tweaks would be good. It had been working fine for a long time and only recently has had any issues.<br>
<br>
I do have hdparm installed and there are two disks in the system both on the primary IDE channel.<br>
<br>
The report from hdparm:<br>
<br>
/dev/sda:<br>
<br>
Model=Maxtor 90840D6, FwRev=WAS8283C, SerialNo=K60A721A<br>
Config={ Fixed }<br>
RawCHS=16276/16/63, TrkSize=0, SectSize=0, ECCbytes=29<br>
BuffType=DualPortCache, BuffSize=256kB, MaxMultSect=16, MultSect=16<br>
CurCHS=16276/16/63, CurSects=16406208, LBA=yes, LBAsects=16406208<br>
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}<br>
PIO modes: pio0 pio1 pio2 pio3 pio4<br>
DMA modes: mdma0 mdma1 mdma2<br>
UDMA modes: udma0 udma1 *udma2<br>
AdvancedPM=no WriteCache=enabled<br>
Drive conforms to: ATA/ATAPI-4 T13 1153D revision 17: ATA/ATAPI-1,2,3,4<br>
<br>
ATA device, with non-removable media<br>
Model Number: Maxtor 90840D6<br>
Serial Number: K60A721A<br>
Firmware Revision: WAS8283C<br>
Standards:<br>
Used: ATA/ATAPI-4 T13 1153D revision 17<br>
Supported: 4 3 2<br>
Configuration:<br>
Logical max current<br>
cylinders 16276 16276<br>
heads 16 16<br>
sectors/track 63 63<br>
--<br>
CHS current addressable sectors: 16406208<br>
LBA user addressable sectors: 16406208<br>
Logical/Physical Sector size: 512 bytes<br>
device size with M = 1024*1024: 8010 MBytes<br>
device size with M = 1000*1000: 8399 MBytes (8 GB)<br>
cache/buffer size = 256 KBytes (type=DualPortCache)<br>
Capabilities:<br>
LBA, IORDY(can be disabled)<br>
bytes avail on r/w long: 29<br>
Standby timer values: spec'd by Standard<br>
R/W multiple sector transfer: Max = 16 Current = 16<br>
DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2<br>
Cycle time: min=120ns recommended=120ns<br>
PIO: pio0 pio1 pio2 pio3 pio4<br>
Cycle time: no flow control=120ns IORDY flow control=120ns<br>
Commands/features:<br>
Enabled Supported:<br>
* SMART feature set<br>
* Power Management feature set<br>
* Write cache<br>
* Look-ahead<br>
* Host Protected Area feature set<br>
* WRITE_VERIFY command<br>
* WRITE_BUFFER command<br>
* READ_BUFFER command<br>
* NOP cmd<br>
* DOWNLOAD_MICROCODE<br>
<br>
<br>
* signifies the current active mode<br>
<br>
multcount = 16 (on)<br>
IO_support = 0 (default)<br>
readonly = 0 (off)<br>
readahead = 256 (on)<br>
geometry = 1021/255/63, sectors = 16406208, start = 0<br>
______________________________<u></u>_________________<br>
Ale mailing list<br>
<a href="mailto:Ale@ale.org" target="_blank">Ale@ale.org</a><br>
<a href="http://mail.ale.org/mailman/listinfo/ale" target="_blank">http://mail.ale.org/mailman/<u></u>listinfo/ale</a><br>
See JOBS, ANNOUNCE and SCHOOLS lists at<br>
<a href="http://mail.ale.org/mailman/listinfo" target="_blank">http://mail.ale.org/mailman/<u></u>listinfo</a><br>
</blockquote></div>