[CentOS] unfsd scalability issues
Les Mikesell
lesmikesell at gmail.com
Sat Jun 2 15:23:35 UTC 2012
On Sat, Jun 2, 2012 at 9:59 AM, Boris Epstein <borepstein at gmail.com> wrote:
>>>
>> Unlikely back then, either. It's a userland implementation, subject to
>> all the same scheduling issues as any other userland app; filesystems
>> should not be implemented in userland for efficiency reasons.
>>
>
> A process implemented in the userland may not be as efficient as one
> implemented as part of the kernel - but that doesn't mean it can't scale
> well, does it?
Anything that needs atomic operations is difficult to scale. Throw in
distributed components and an extra user/kernel layer and there are
lots of ways to go wrong.
--
Les Mikesell
lesmikesell at gmail.com
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