On Tue, Jun 20, 2017 at 9:36 AM, Sergei Golubchik <serg@mariadb.org> wrote:
Hi, MARK!
On Jun 20, MARK CALLAGHAN wrote:
> Do MariaDB 10.2 binaries use glibc malloc or get built with one of tcmalloc
> or jemalloc? Sorry for being lazy, as I have yet to install it.
glibc malloc.
Only ha_tokudb.so gets linked with jemalloc.
Thanks, I neglected to share a link to a result from the past to show the benefit from jemalloc and tcmalloc with MyRocks. RSS was much larger with glibc malloc because tcmalloc and jemalloc are better at avoiding fragmentation when dealing with something like RocksDB that puts stress on the allocator. This isn't an issue for InnoDB. I will repeat this test soon.