Search Results for: percona microslow log patch

Introducing percona-patches for 5.1

Our patches for 5.0 have attracted significant interest.  You can read about SecondLife’s experience here, as well as what Flickr had to say on their blog.  The main improvements come in both performance gains and improvements to diagnostics (such as the improvements to the slow log output, and INDEX_STATISTICS). Despite having many requests to port […]

Impact of logging on MySQL’s performance

Introduction When people think about Percona’s microslow patch immediately a question arises how much logging impacts on performance. When we do performance audit often we log every query to find not only slow queries. A query may take less than a second to execute, but a huge number of such queries may significantly load a […]

MySQL Binaries Percona build10

We made new binaries for MySQL 5.0.67 build 10 which include next fixes: We addressed concerns about potential logging and statistics overhead, so now you can fully turn on / off query statistics for microslow patch and user statistics in runtime. Next variables were added:

With both slow_query_log = OFF and userstat_running = OFF […]

Percona build7 with latest patches

We made new binaries for MySQL 5.0.67 build 7 which include patches we recently announced. The -percona release includes:

and -percona-highperf release additionaly includes

You can download RPMs for RedHat / CentOS 4.x and 5.x for x86_64, binaries, sources and patches there

Finding what Created_tmp_disk_tables with log_slow_filter

Whilst working with a client recently I noticed a large number of temporary tables being created on disk.

New patches, new builds

We made new patches, improved previous and want to announce new builds for 5.0.62, 5.0.67 and 5.1.26 versions. One of biggest changes we separated releases of 5.0 into two branches. First, just “-percona” release is more stable and contains only stable and proven on many installation patches. Second is “-percona-highperf” release, which contains experimental patches […]

Percona RPMS for RedHat 5 / CentOS 5 x86_64

We prepared RPMs of our release for RedHat 5 / CentOS 5 x86_64 platform. http://www.percona.com/blog/mysql/RPM/RHEL5/5.0.62/ There was question what patcheset includes and if there is manuals. We have: microsecond resolution in slow-log extended query plan in slow-log and InnoDB statistics. You can read more here http://www.percona.com/blog/2008/04/20/updated-msl-microslow-patch-installation-walk-through/ User / Table / Index statistics (Google’s patch). More […]

Percona builds with Percona patchsets

Percona has a strong team of MySQL developers and consultants on board, so we decided to prepare builds with our patches and third-party patches which we think are very useful. We actually use these internally and for our customers. Current releases include: microslow patch (enables microsecond resolution in slow logs) execution plan (show info about […]