advance-toolchain-10.0 got released today. Its based on gcc-6.2.1. I'd like to think there are advances in the compiler.
Getting mariadb-10.2 packages built with this version would be a good time since its still pre-release.
The yum packages for development and runtime AT8.0 and AT10.0 are installable at the same time without conflicts for the builders (RHEL/Centos7). This will be important if galera compiled against a different version.
I've compiled the latest 10.2 code, debug and release against at10.0 and there are no compile or mtr (big-test included) problems. There are a couple of compiler warnings however nothing too significant.
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MDEV-10093galera package for RHEL 7 on ppc64le requires wrong version of advance-toolchain package
Daniel Black
added a comment - Will also require galera code change to get it to build with AT-10.0 https://github.com/MariaDB/galera/blob/mariadb-3.x/SConstruct#L197..L203
Now that 10.2 is GA and the RHEL packages use AT8.0 this can't happen now.
The current RHEL-7.2 (gcc-4.8.5) is slightly exceeded by the AT8.0 (4.9.4 based) so I suspect we aren't missing anything.
Daniel Black
added a comment - From MDEV-11386 it seems the solution was to remove AT https://github.com/MariaDB/galera/commit/aa99f2dbc2da83d8ed1edc5777d22f53697c9ab9 until a Performance benefit can be proved.
Sounds like a fair call.
Now that 10.2 is GA and the RHEL packages use AT8.0 this can't happen now.
The current RHEL-7.2 (gcc-4.8.5) is slightly exceeded by the AT8.0 (4.9.4 based) so I suspect we aren't missing anything.
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Daniel Bartholomew
Daniel Black
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Minor
Will also require galera code change to get it to build with AT-10.0 https://github.com/MariaDB/galera/blob/mariadb-3.x/SConstruct#L197..L203