maria-developers team mailing list archive

[Roberto Spadim <roberto@xxxxxxxxxxxxx>]

Well i wws reading your posts
Do you need big data to test read and scan times?

Em segunda-feira, 9 de junho de 2014, Anshu Avinash <
anshu.avinash35@xxxxxxxxx> escreveu:

> Hi all,
>
> You can find this week's blog entry at
> http://igniting.in/gsoc2014/2014/06/09/more-coding/. I'm now maintaining
> the code only on github:
> https://github.com/igniting/server/tree/selfTuningOptimizer.
>
> Regards
> Anshu Avinash
>
>
> On Sun, May 25, 2014 at 3:27 PM, Anshu Avinash <anshu.avinash35@xxxxxxxxx>
> wrote:
>
> Hi all,
>
> You can find my this week's blog entry at
> http://igniting.in/gsoc2014/2014/05/25/coding-things-up/ . I have created
> a branch on launchpad for my work:
> http://bazaar.launchpad.net/~igniting/maria/maria/revision/4211 . You can
> give your suggestions/reviews either on this thread or as a comment on the
> blog itself.
>
> Regards
> Anshu Avinash
>
>
> On Tue, May 20, 2014 at 1:22 AM, Roberto Spadim <roberto@xxxxxxxxxxxxx>
> wrote:
>
> wow a big work, congratulation guy, i will read part by part
> to better understand mariadb code
>
>
> 2014-05-19 16:33 GMT-03:00 Anshu Avinash <anshu.avinash35@xxxxxxxxx>:
>
> Hi all,
>
> This week's blog entry would get delayed by couple of days. I have started
> coding though and would like to give heads up on what I'm doing.
>
> I've looked at the diffs for "Cost model project" of mysql:
> http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7596 and
> http://bazaar.launchpad.net/~mysql/mysql-server/5.7/revision/7222 . These
> give a pretty good idea about what are the hard-coded constants and where
> are they being used.
>
> The idea is to multiply "READ_TIME_FACTOR" and "SCAN_TIME_FACTOR" to the
> values returned by read_time() and scan_time() in handler.h, while
> returning. These values would be read from a table in mysql db. For that
> I've looked at sql_statistics.cc. After completing this, I'll first change
> the values of these constants manually and check if the better or worse
> query plans are being selected. I'll first do the last step manually, to
> check if everything is working as expected and later automate it.
>
> Regards
> Anshu
>
>
> On Mon, May 12, 2014 at 11:22 AM, Anshu Avinash <anshu.avinash35@xxxxxxxxx
> > wrote:
>
> Hi all,
>
> You can find my blog entry for this week at
> http://igniting.in/gsoc2014/2014/05/11/first-steps/ .
>
> Regards
> Anshu Avinash
>
>
> On Thu, May 8, 2014 at 11:46 PM, Anshu Avinash <anshu.avinash35@xxxxxxxxx>
> wrote:
>
> Hi all,
>
> Sorry for the irregular updates. I had been busy for last couple of days
> and might still be busy for 1-2 days more. I would be completely free
> starting next week, and would be updating my blog weekly on every Monday
> (so 1st update would be on May 12). I would also send the link of my post
> weekly on the mailing list.
>
> As discussed on irc, I started to explore the pair of constants:
> handler::scan_time() and handler::read_time().
>
>

-- 
Roberto Spadim
SPAEmpresarial
Eng. Automação e Controle