Hi, Anshu!
On Jun 25, Anshu Avinash wrote:
> Hi Sergei,
>
> I have been looking into various methods that can meet our conditions.
> The Gauss-Seidel Method (http://en.wikipedia.org/wiki/Gauss-Seidel_method)
> might meet our requirements. I had just started writing the code.
>
> So in a nutshell
Hi Sergei,
I have been looking into various methods that can meet our conditions. The
Gauss-Seidel Method (
http://en.wikipedia.org/wiki/Gauss%E2%80%93Seidel_method) might meet our
requirements. I had just started writing the code.
So in a nutshell, Gauss-seidel method is an iterative method. In
Hi, Anshu!
Please, see the attached patch.
It introduces a macro top_level_cond_is_satisfied() that now marks all
places where a comparison (in the TIME_FOR_COMPARE sense) is done.
So, all you need to do is to convert this macro into an (inline) function
and increment your counter from there.
As
Hi, Anshu!
Please, don't forget to cc: maria-developers@ when discussing
development topics.
On Jun 18, Anshu Avinash wrote:
>
> What I meant to say was we need N "linearly independent" equations to
> solve for N variables and that might not be the case. Some of the
> queries might not use any f
Hi, Anshu!
On Jun 18, Anshu Avinash wrote:
> Hi serg,
>
> Sorry that I had been out of touch for 1-2 days. I got caught up in some
> other work.
>
> I have read through the comments you made on MDEV and I have just started
> the implementation for the first approach, the approximate method. I ha
Hi, Anshu!
On Jun 13, Anshu Avinash wrote:
>
> So I have refactored Cost_factors::init() into Cost_factors::init() and
> Cost_factors::re_init(). The diff is at:
> https://github.com/igniting/server/commit/41e360309c067d072d788495e4e9480546287721.diff
Looks great. I've added one comment there.
Hi,
In this case WHERE a > 6 should have a better chance to trigger a full
table scan than a > 21.
Jocelyn
Le 11/06/2014 09:51, Anshu Avinash a écrit :
Hi serg,
Yes, I had tried that. I had tried many combinations. I have updated the
test however on github code:
https://github.com/ignitin
Hi serg,
Yes, I had tried that. I had tried many combinations. I have updated the
test however on github code:
https://github.com/igniting/server/tree/selfTuningOptimizer.
Regards
Anshu
On Wed, Jun 11, 2014 at 1:13 PM, Sergei Golubchik wrote:
> Hi, Anshu!
>
> On Jun 11, Anshu Avinash wrote:
>
Hi, Anshu!
On Jun 11, Anshu Avinash wrote:
> Hi serg,
>
> I have attached the updated diff. I'm still unable to observe the effect
> introduced by the cost factors. Maybe I just need to study the usage of
> scan_time() and read_time() in greater detail.
Ok, see one suggestion below. If that won'
Hi serg,
I have attached the updated diff. I'm still unable to observe the effect
introduced by the cost factors. Maybe I just need to study the usage of
scan_time() and read_time() in greater detail.
Regards
Anshu
On Tue, Jun 10, 2014 at 1:19 PM, Sergei Golubchik wrote:
> Hi, Anshu!
>
> On J
Hi, Anshu!
On Jun 10, Anshu Avinash wrote:
> Hi serg,
>
> I have implemented your suggestions. In the test case I created a table
> with 25 rows. Explain for 'select * from t1 where a > 19' gave 'ALL' while
> explain for 'select * from t1 where a > 20' gives range.
> I have also written public me
Hi serg,
I have implemented your suggestions. In the test case I created a table
with 25 rows. Explain for 'select * from t1 where a > 19' gave 'ALL' while
explain for 'select * from t1 where a > 20' gives range.
I have also written public methods ha_scan_time() and ha_read_time(). I
should replac
Hi, Anshu!
On Jun 08, Anshu Avinash wrote:
> Hi all,
>
> As per serg comments on the previous commit, I have modified the code to
> add an init function which will initialize all the cost factors at the
> start of the server. The latest code is at
> https://github.com/igniting/server/commits/self
Hi, Anshu!
On Jun 08, Anshu Avinash wrote:
> Hi all,
>
> As per serg comments on the previous commit, I have modified the code to
> add an init function which will initialize all the cost factors at the
> start of the server. The latest code is at
> https://github.com/igniting/server/commits/self
Hi all,
As per serg comments on the previous commit, I have modified the code to
add an init function which will initialize all the cost factors at the
start of the server. The latest code is at
https://github.com/igniting/server/commits/selfTuningOptimizer. I have also
attached the diff here.
Ho
nice :) maybe part of msql? :) very old times
nice, i will stay updated with this gson project, very interesting and a
very good work :)
2014-05-27 15:35 GMT-03:00 Sergei Golubchik :
> Hi, Roberto!
>
> On May 27, Roberto Spadim wrote:
> > Hi Sergei!
> > nice :) i'm reading about it
> > just one
Hi, Roberto!
On May 27, Roberto Spadim wrote:
> Hi Sergei!
> nice :) i'm reading about it
> just one doubt i didn't understand everything yet
> there's a read time and a scan time, what the difference? read = sequencial
> read and scan = non sequencial read? or something like table read cost,
> in
Hi Sergei!
nice :) i'm reading about it
just one doubt i didn't understand everything yet
there's a read time and a scan time, what the difference? read = sequencial
read and scan = non sequencial read? or something like table read cost,
index read cost?
2014-05-27 5:41 GMT-03:00 Sergei Golubchik
Hi, Roberto!
On May 26, Roberto Spadim wrote:
> hi guys, one question, that maybe at the right time could be answered...
> with the new cost model, maybe at explain we could have a new information
> about how many time we will expend? and maybe something like, estimate time
> / executed time (via
hi guys, one question, that maybe at the right time could be answered...
with the new cost model, maybe at explain we could have a new information
about how many time we will expend? and maybe something like, estimate time
/ executed time (via show warnings?)
i will read the patch about this work,
Hi, Anshu!
On May 25, Anshu Avinash 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 yo
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