Hi Slava,
Thanks for your reply.
On Sun, Oct 12, 2014 at 08:16:31PM -0700, Slava Pestov wrote:
> You can try to detach the backing device, which will cause all dirty
> data to be written back, and attach it again.
Yes, detaching a backing device will make all dirty data to be written
back to the backing device. But if I understand correctly it couldn't
invalidate all data in cache device. That means that after attaching
backing device the data in cache device is still valid. All I want to
do is to remove all data in cache device. Any idea?
Regards,
- Zheng
>
> On Sun, Oct 12, 2014 at 8:03 PM, Zheng Liu <gnehzuil.liu@xxxxxxxxx> wrote:
> > Hi all,
> >
> > I am trying to do some benchmarks against bcache, espeically in cache
> > miss scenario, but I don't find a user interface to invalidate all
> > cache. Anyone can tell me how to do that.
> >
> > Thanks in advance,
> > - Zheng
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