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Re: ide-scsi with 2 drives - tests




On Thu, 30 Dec 2004, Robert Epprecht wrote:

> I agree that in general this is a bad idea, but some tests seemed to show
> me that pluging the optical drives as slaves to the hd's as masters does
> *not* slow them down with my specific hardware.

simple speed test ... ( must write and read at the same time )

- only using hda ( say ata-100 or ata-133 device ) ... no hdb connected 

	date
	while ( do it 100 times )
	  # if your disk has spare space
	  tar zcvf /opt/test/giant.tgz --exclude /opt/test/giant.tgz /
	  #
	  # if you disk not NOT have spare space
	  # tar zcvf /dev/null /
	  #
	  # flush the system so it doesnt use data in your 2GB of memory
 	  #
	  # more test
	  ls -laR / > /tmp/test.ls.log
	  #
	done
	date

- now connect hdb ( like a slow ata-33 cdrom )

	do the same tests

	- see the time difference

c ya
alvin



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