maria-developers team mailing list archive

[Zardosht Kasheff <zardosht@xxxxxxxxx>]

Stewart, thanks for the feedback. That this was simple for Drizzle is
encouraging to hear.

Is there a proposal somewhere for eliminating the need for fsyncs on a
slave? As I understand, MWL#164 still requires the fsync.

On Mon, Jan 28, 2013 at 8:38 PM, Vadim Tkachenko <vadim@xxxxxxxxxxx> wrote:
> Stewart,
>
> I would pretty much like to see benchmarks numbers, especially
> under IO-bound workload before agreeing that it performs well.
>
>
> On Mon, Jan 28, 2013 at 5:05 PM, Stewart Smith <stewart@xxxxxxxxxxxxxxxx> wrote:
>> Kristian Nielsen <knielsen@xxxxxxxxxxxxxxx> writes:
>>> You will be writing your data *6* times: To the real table, when flushing its
>>> buffer pool pages. To the double-write buffer while flushing, and to the redo
>>> log before flushing. Then to the binlog table, and before that to the redo log
>>> and the doublewrite buffer. I could never reconcile myself with this.
>>
>> Mind you, it performs really quite well due to the reduced fsync()s and
>> (at least in Drizzle code) was rather trivial to implement. Big bang for
>> buck :)
>>
>> --
>> Stewart Smith
>
>
>
> --
> Vadim Tkachenko, CTO, Percona
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