Mailinglist Archive: opensuse (1468 mails)

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Re: [opensuse] [OT] is there a virtual machine that IMPROVE performance by using harddisk as harddisk image
  • From: Lars Marowsky-Bree <lmb@xxxxxxx>
  • Date: Tue, 2 Jun 2009 16:20:23 +0200
  • Message-id: <20090602142023.GG7456@xxxxxxx>
On 2009-06-02T22:07:17, Zhang Weiwu <zhangweiwu@xxxxxxxxxx> wrote:

As far as I know if the hard disk of the guest os is an image file on
the host OS, the host OS treats it as a file and offer to cache it in
the main memory. However if vmplayer access a partition or harddisk it
is not cached by the host OS's file system. That might make it even
slower. Unless of course the database is in particular on a raw device
that is directly accessed from the guest OS, as Sandy pointed out.

The caching doesn't make a difference, as it is not really different.


Regards,
Lars

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SuSE Labs, OPS Engineering, Novell, Inc.
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG N├╝rnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde

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