Thank you for your suggestions. It looks like write caching is
enabled. I've pasted the results below.
Stephen
On 16-Nov-06, at 3:53 AM, Stuart Henderson wrote:
On 2006/11/16 01:02, Stephen Schaff wrote:
I just don't understand how there can be a difference factor of 10.
factor of 100.
yes - guess I was tired when calculating that!
30 seconds for make depend on the A8N-SLI and 30 mins on the A8N-VM
CMS (???)
I MUST be missing something simple - has nobody else seen this?
softdep mount option? this will slow down creation/removal of
large numbers of files.
hard-drive write caching? (check under the 'Device has enabled...'
section of 'sudo atactl wd0') drive write speeds will be low if it's
not enabled (some drives normally enable it, some don't and you can
do so in rc.local).
sudo atactl wd0:
Model: ST3250823AS, Rev: 3.03, Serial #: 5ND2CD2Q
Device type: ATA, fixed
Cylinders: 16383, heads: 16, sec/track: 63, total sectors: 488397168
Device capabilities:
ATA standby timer values
IORDY operation
IORDY disabling
Device supports the following standards:
ATA-1 ATA-2 ATA-3 ATA-4 ATA-5 ATA-6 ATA-7
Master password revision code 0xfffe
Device supports the following command sets:
READ BUFFER command
WRITE BUFFER command
Host Protected Area feature set
Read look-ahead
Write cache
Power Management feature set
Security Mode feature set
SMART feature set
Flush Cache Ext command
Flush Cache command
Device Configuration Overlay feature set
48bit address feature set
Set Max security extension commands
DOWNLOAD MICROCODE command
SMART self-test
SMART error logging
Device has enabled the following command sets/features:
READ BUFFER command
WRITE BUFFER command
Host Protected Area feature set
Read look-ahead
Write cache
Power Management feature set
SMART feature set
Flush Cache Ext command
Flush Cache command
Device Configuration Overlay feature set
48bit address feature set
DOWNLOAD MICROCODE command
