Messages in this thread | | | Date | Thu, 17 Jul 2008 19:14:25 -0400 | From | Oren Laadan <> | Subject | Re: Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creation with a specified id) |
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Dave Hansen wrote: > On Wed, 2008-07-09 at 18:58 -0700, Eric W. Biederman wrote: >> In the worst case today we can restore a checkpoint by replaying all of >> the user space actions that took us to get there. That is a tedious >> and slow approach. > > Yes, tedious and slow, *and* minimally invasive in the kernel. Once we > have a tedious and slow process, we'll have some really good points when
"Replaying all of the user space actions that took us to get there" - this task is not even always possible without deterministic log/replay mechanism :(
Oren.
> we try to push the next set of patches to make it less slow and tedious. > We'll be able to describe an _actual_ set of problems to our fellow > kernel hackers. > > So, the checkpoint-as-a-corefile idea sounds good to me, but it > definitely leaves a lot of questions about exactly how we'll need to do > the restore. > > -- Dave >
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