On Thu, 2007-04-19 at 13:04 +0100, Russell Jones wrote: > Zhang Weiwu wrote: > > But... if instead of burning DVD I do > > 'cat /mnt/nfs/data.iso > /dev/null', the network is at full speed > > (8MBytes/s)
> This is not an identical test as the data is just read then disposed of. > You could have a look at the wikipedia article on device bandwidths and > do some sums > http://en.wikipedia.org/wiki/List_of_device_bandwidths > I'd check things like the DMA mode of the drive, the backplane bus and > card types and versions, the north and south bridge types, the memory > speed and type, the FSB speed etc., to see what the theoretical capacity > is and record the actual throughput to see if it approaches those > values. I'm not sure what hardware you have, so you'll have to consider > the data's path yourself. Thanks a lot for the link and suggestions. I think it's probably the PCI bandwidth problem now because now I burn a DVD from an image on local harddisk, the result is the screen is no longer slow (mouse and keyboard respond fast). And any application which would read harddisk starts slow, but once started, it's usually fast as well. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
