[rds-devel] Re: The meaning of MR invalidation
Richard Frank
richard.frank at oracle.com
Fri Feb 8 07:32:01 PST 2008
Are we currently issuing an invalidate from within the driver at process
death ? We really should do this.
IMO - it would OK to issue an invalidate when ever a socket closes...and
we flush mr's...
Olaf Kirch wrote:
> On Friday 08 February 2008 15:32, Richard Frank wrote:
>
>>> We could make this a little more robust I guess by also freeing MRs
>>> when the application asks for an invalidate. At least the mthca
>>> driver seems to generate unique R_Keys (the top bits of the R_Key
>>> are used as a kind of counter, so we'd really have to cycle through
>>> 4 billion MRs before getting the same R_Key).
>>>
>>>
>>>
>> Yes - this is what we want.
>>
>
> Okay. It'll allow me to remove quite a bit of code from the pool code,
> too.
>
> Olaf
>
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