Re: Transcript of chat between me and Sleeepycat

Glenn A. Thompson wrote:

> Hey,
>
> Branko Čibej wrote:
>
>>Karl Fogel wrote:
>>
>>
>>
>>>The more complex question is whether we need to be creating BDB
>>>transactions as often as we do, or whether we can get away with
>>>locking -- or nothing at all -- under some circumstances.
>>>
>>>
>>>
>>Yup. Except that "nothing at all" is likely to cause quite a few
>>headaches. :-)
>>
> If memory serves, the problem with BDB transactions is that they do
> filesystem locks. Is this correct?

No they don't -- or rather, it depends on the OS -- but it doesn't
matter. I'm talking about semantics, not implementation.

> So any "better" locking would most likely be memory based right?

That's what BDB tries to do on most systems.

-- 
Brane Čibej   <brane_at_xbc.nu>   http://www.xbc.nu/brane/
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@subversion.tigris.org
For additional commands, e-mail: dev-help@subversion.tigris.org