Posts

Showing posts from March, 2016

Using jemalloc heap profiling with MySQL

I spent too much time figuring this out. This works for me: MALLOC_CONF="prof:true,prof_gdump:true,prof_prefix:/path/to/files/jez" \ libexec/mysqld ... This does not work for me: MALLOC_CONF="prof:true,prof_gdump:true" \ libexec/mysqld ...
Post a Comment
Read more

MyRocks and sql-bench

MyRocks is now able to run sql-bench with support recently added for tables that are missing a PK. I found one bug and two performance problems  in MyRocks when running sql-bench. While writing this I found a post that claims sql-bench will be removed from the MySQL repo. It is useful and I hope it remains in some repo. I run sql-bench for MyRocks with this command line: ./run-all-tests --server=mysql --create-options="engine=rocksdb default collate latin1_bin"
Post a Comment
Read more