Re: checkpointer continuous flushing - V18

On Thu, Mar 10, 2016 at 5:24 PM, Andres Freund <andres@anarazel.de> wrote:
> On 2016-02-21 09:49:53 +0530, Robert Haas wrote:
>> I think there might be a semantic distinction between these two terms.
>> Doesn't writeback mean writing pages to disk, and flushing mean making
>> sure that they are durably on disk?  So for example when the Linux
>> kernel thinks there is too much dirty data, it initiates writeback,
>> not a flush; on the other hand, at transaction commit, we initiate a
>> flush, not writeback.
>
> I don't think terminology is sufficiently clear to make such a
> distinction. Take e.g. our FlushBuffer()...

Well then we should clarify it!

:-)

-- 
Robert Haas
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