lpsm!

[Jacques Mony]

Which filesystem would you recommend to be the most reliable when
using lpsm at large?

On 6/2/06, H. Peter Anvin <hpa at zytor.com> wrote:
> Jacques Mony wrote:
> > How do you deal with the filesystem commits? We would need a way to
> > make sure the checkpoint is totally written to disk before we consider
> > it is. Is there a user space solution to this?
>
> The commits are handled by forking the process (thereby creating a
> snapshot), then writing the log, and using fsync and fdatasync() to
> enforce coherency.
>
> Both blocking and nonblocking checkpointing is available; blocking
> checkpointing obviously stops everything until the checkpoint is
> complete; nonblocking checkpointing allows execution to continue, but
> you can *always* revert to a checkpoint; for nonblocking checkpoints
> this may be the one before the latest instead of the latest if the
> checkpoint wasn't complete by the time the process was terminated.
>
>        -hpa
>


-- 
Jacques Mony