… –oltp-range-size=0 –mysql-table-engine=innodb –mysql-user=root –max-requests=0 –max-time=60 –mysql-db=test run On Dell… to the binary log. Innodb transactional log does not have the same problem on EXT3. I expect this is because Innodb log is pre… while binary log is written as growing file. Another possible reason is small sizes of writes which are being fsync‘ed with binary log. Though…
Post: Heikki Tuuri Innodb answers - Part I
October 26, 2007 By 19 Comments
…With good RAID with BBU you can get 2000 fsync/sec or more which is typically enough. Q23: …think so. Sergei Golubchik serialized the MySQL binlog write and the InnoDB log flush with a mutex in 5.1…s group commit works again. PZ: You can disable binary logging to get Group Commit back. Though this is …
Comment: Jeremy Cole on MySQL Replication
June 14, 2006 By 12 Comments
… cache and if your OS does not lie you about fsyncs. It is simple code which does not even have “group… significant. Innodb also has log mutex which protects log writes. In MySQL 4.1 and MySQL 5.0 without binary logging it however can do group… the same time with single log write. This is currently broken in 5.0 if you enable binary log. In general data migration…
Comment: Jeremy Cole on MySQL Replication
June 17, 2006 By 12 Comments
… logs. In MySQL 5.0 you can disable innodb_xa_support and you can get binary log possibly out of sync with innodb transactional log. However it will not make group commit to work. Group commit only works in MySQL 5.0 if binary log is…/group-commit-and-xa/ – disabling XA saves you from extra fsync which allows to double results but results still do not…
Post: Percona Server 5.1.58-12.9
August 17, 2011 By 2 Comments
… at Launchpad. Highlights Performance Improvements fsync() has been replaced with fdatasync()…61790 in MySQL (Alexey Kopytov). Uninitialized values in the Slow Query Log patch. Bug… please see the following links: Downloads: Binary distributions, Percona Software Repositories Installation instructions…
Post: Percona Server 5.5.14-20.5
August 17, 2011 By 4 Comments
… Launchpad. Improvements Performance Improvements fsync() has been replaced with …, etc.), but for the transaction log and the doublewrite buffer,… / #51196 and#61790 in MySQL (Alexey Kopytov). Querying global… see the following links: Downloads: Binary distributions, Percona Software Repositories …
Post: Looking at Redis
August 27, 2009 By 27 Comments
… is dumped in temporary file which is renamed only after fsync which means if you crash during the dump you simply… even more simple than with MySQL as you do not need to deal with snapshot or binary log position. Replication is asynchronous and… random single row updates which are hard to batch. With MySQL/Innodb I got server being able to handle some 30…
Post: Percona build7 with latest patches
November 14, 2008 By 26 Comments
We made new binaries for MySQL 5.0.67 build 7 which include patches we recently … output of error.log to syslog-ng | 1.0 | Percona | GPL | Ported from Debian | | innodb_fsync_source.patch | Information of fsync callers in… RedHat / CentOS 4.x and 5.x for x86_64, binaries, sources and patches there
