On 2 Aug 2016, at 8:32 , Yuxin Ren <[email protected]> wrote:
> 
> Hi all,
> 
> I am curious memory mapping/unmapping performance.
> Are there any applications that stress the memory mapping and unmapping 
> utility?

I don’t think we’ve come across any yet. This is almost certainly a result of 
seL4 presently being deployed with fairly static architectures (and memory 
management operations done inside a VM are invisible to seL4). I’m sure 
scenarios where memory management performance is important do exist, we just 
haven’t come across them yet.

I suspect you’re asking because you found that these operations are slow  – I’d 
be surprised if they weren’t ;-)

No-one bothered to put any effort in optimising the mapping implementation for 
lack of a driver of high enough significance. We’ll prioritise that once it 
becomes a problem.

Gernot

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