[sheepdog] [PATCH] tests: add a test to test vdi snapshot functionality concurrently

[Liu Yuan]

On 09/19/2012 01:44 PM, Liu Yuan wrote:
> With current object implementation, collie command will try to read object
> cache first because we change the semantics of no flag CMD_CACHE into 'writethrough'
> instead of 'no object cache'.
> 
> I think before 0.5.0 release, we need to fix this regression.

I don't find an easy way to fix this regression on collie command. I think the easiest way
is to restore old semantics, then current collie code wouldn't need a single change.

then '-w object:mode={writethrough,writeback},size={size},directio' operate on object cache and
'-w disk' will enable current disk write back semantic.

how do you think of it, Kazum?

Thanks,
Yuan