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Friday, 01 April, 2011

MySQL Performance: Reaching 100M(!) Transactions/sec with MySQL 5.5 running on Exadata!

Cannot give you all details yet and it's too early to say what the max performance we'll finally obtain, but currently we out-passed 100.000.000 (!) Read+Write transactions/sec on the latest MySQL 5.5 simply integrated on the Exadata X2-8 (full rack) instead of Oracle database!!! :-))

The result is so incredible.. - but we spent several days now to validate that workload is perfectly matching customer's requirement and really reproducing their production environment. The problem came from the performance issue they observed month to month and came in our Benchmark Center to test a new HW platform (and we're in competition here with HP and IBM, but they have already finished their testing and without a positive result (no comments.. ;-))).. Finally, no one of any tested platforms was able to keep the load expected for the end of the year.. And of course we think about Exadata :-)) but the problem that the customer's application is fully dependent on MySQL and they never ever wanted to migrate (specially that they are running some hidden x64 functions which will not run on SPARC64 for ex.)..

So, looking on our Exadata, wa say "what if?".. ;-))

Then we used CELLs as MySQL shards and added some "back box magic" - the shard coordinator which is "natively" distributing data between Exadata CELL nodes and even give now a possibility to run parallel queries! - SELECT count(*) from Table of 500GB is giving an answer.. in 1.2sec!! (on InnoDB).. Then for OLTP (main customer's workload) we adopted the latest Solaris 11 features (mapping MySQL threads to kernel threads (LWP), using HW-atomic mutexes, super-parallel AIO lib and Zone binding) - all these factors gave an incredible boost, and 100M TPS was finally out-passed!! :-)) it's hard to believe if I did not see it myself :-))

Currently the max performance is limited by the network throughput.. - well x4 10Gbit network cards on each node! - who may believe we'll reach the limit on our 10Gbit switch?.. So, currently we're waiting for the new one which will be shipped next week, and then a new record will wait for us!..

Stay tuned!. ;-))

Posted by Dimitri at 21:00 - Comments...
Categories: MySQL, Oracle, Solaris

Friday, 02 October, 2009

Performance Trainings & Conferences in Kiev

Last week I've participated in several Performance Conferences and Trainings in Kiev. Events mainly were dedicated to the latest improvements within MySQL performance, as well Solaris and Oracle tuning / performance analyzing and best practices. The week was very hot :-) but I've enjoyed every day discussing with creative and smart people! People hungry on knowledge and ready to stay 2 hours more overnight outpassing all allowed timing - it was a real pleasure to share all I know! :-))

So, I'd like to thank all participants! As well Sun@Kiev and i-Klass teams who organized and prepared all these events! I may only wish to see such events more and more often, and don't forget to invite me again! :-))

NOTE : similar conference about MySQL performance improvement will be organized soon in Paris - so if you're interesting in (and speaking French :-)) - please, contact me ahead, we'll need to know the size of the auditorium to be able to have seats for everybody :-))

After all that said, here are few images from the "road notes" and my slides or other materials used by me during presentations (as promised)...

Kiev Polytechnic Institute

25 years ago I came here expecting to be accepted as a new student.. And spent 6 years of my life to study maths, computers, programming, as well many other topics (even if some of them were here only to develop your brain and did not have any real usage :-)) I was invited to discuss about of databases scalability and the latest improvement made in MySQL performance. The conference was prepared to celebrate the Software Freedom Day in KPI ...

After so many years, entering the Main campus building was so impressive.. The Main Auditorium in this building should still remember so many famous names ... Did I expect one day to find myself on the podium and presenting my work to others?.. :-)) Initial stress was very high.. but discussing and presenting to students was so fun - that in few minutes I've got a feeling I'm speaking with old friends, and everything goes just fine :-))

Presentations :

MySQL Performance conference @i-Klass

i-Klass is very well placed in Kiev near and face to the one of the most famous and beautiful Church in Kiev - Kiev Pechersk Lavra - simply must to visit if you're traveling in Kiev :-)) BTW, there is also a famous museum of micro miniatures (the world's smallest chess board you may see on following photo). Also, did I say you the food is absolutely excellent in Kiev?.. ;-)

i-Klass is a very good partner of Sun, and for such event they prepared their bigger conference hall accepting near 350 persons. The event itself was very successful as nobody left till the end :-)) as well a big part of participants preferred to stay one or two hours more again but do not miss the last uncovered topics :-) As well I was surprised to discover Percona presence even in Kiev! :-)) And I'm still waiting for photos from this event :-))

Presentations :

Solaris Performance Monitoring & Analyze @i-Klass

Two next days covered Solaris performance and Oracle-oriented system tuning. We expected 20 persons for each event as practice lab supposed to have a Solaris desktop on the desk and there was not too much place in the room. But finally we got 45 persons every day and most of people came with their own laptop running Solaris! :-))

I've enjoyed all the time during these trainings and was happy to see so many strong engineers loving Sun technology and proud of their choices! :-) Some partners and customers I've already met during their benchmarks in Paris :-) All other are always welcome to test and improve performance of their applications in our Sun Solution Centers !!!

Also, one of the fun events was a direct connection with our Paris office and presenting live (with my colleague Matthieu) the demo of Automated Dynamic Reconfiguration with LDOMs! It was absolutely fantastic seating in two different locations and work all together as a one single team! Seems we made a new step in our activity :-))

Note : Last day due Internet connection problems we did not finish our stress testing with Oracle in Solaris zones - all who still want to participate in the remote testing please contact me before next Tuesday, because on Tuesday we'll replay live all programmed tests! :-))

Presentations :

Bye, bye...

Thanks again to all participants and see you next time! :-))

Wednesday, 22 April, 2009

dbSTRESS Benchmark kit updated!

In case you also want to replay the same dbSTRESS test scenarios I've posted results yesterday, I've added into the test kit a shell script which may be used as a Reference Scenario.

More details on how to use it is here .
As well dbSTRESS kit and User Guide are available for download from http://dimitrik.free.fr