Are there other goals for single-thread performance regressions? There are many that have nothing to do with replication code  although almost every single-threaded replication hurts replication.


On Mon, Jan 20, 2014 at 2:54 AM, Axel Schwenke <axel@askmonty.org> wrote:
Hi,

for those of you who didn't attend the Barcelona meeting last week, here are
the plans for next steps in benchmarking:

1. top priority is automatic running of DBT3 for each new release of
MariaDB-10.0 and MySQL-5.6. Probably also for MariaDB-5.5. I'll send out
another mail to pinpoint DBT3 conditions (i.e. which table statistics to use
etc.)

2. multithreaded replication slave is now in a condition that it can and
should be benchmarked

3. the problem pointed out by Yoshinori in
http://yoshinorimatsunobu.blogspot.de/2013/12/single-thread-performance-regression-in.html
must be checked for MariaDB. Monty announced that he will commit a patch
this week that should help with that problem.

4. for the NUMA scalability problem, Kristian will try to find the
definitive reason with profiling tools. Besides that ad-hoc testing of new
patches from Svoj continues as before.

5. Galera benchmarking will be done by the Galera team for now.


XL

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--
Mark Callaghan
mdcallag@gmail.com