Mailinglist Archive: opensuse-factory (776 mails)

[Andrey Borzenkov <arvidjaar@xxxxxxxxx>]

В Wed, 04 Sep 2013 12:04:58 -0400
Jeff Mahoney <jeffm@xxxxxxxx> пишет:

> - VM image performance
>   - Performance is generally regarded as horrible.
>   - This is because CoW on what is essentially a block device backing
>     store means a ton of write amplification for each write that the
>     VM issues.

Why VM is special cased here? What makes it so different from any
normal write activity?

Did anyone look at what Solaris does? They must have hit the same
problem with LDOM on ZFS years ago.