MySQL 3.23.12 is the first MySQL version that is tested on Linux-Alpha. If you plan to use MySQL on Linux-Alpha, you should ensure that you have this version or newer.
We have tested MySQL on Alpha with our benchmarks and test suite, and it appears to work nicely.
We currently build the MySQL binary packages on SuSE Linux 7.0 for AXP, kernel 2.4.4-SMP, Compaq C compiler (V6.2-505) and Compaq C++ compiler (V6.3-006) on a Compaq DS20 machine with an Alpha EV6 processor.
You can find the preceding compilers at http://www.support.compaq.com/alpha-tools/. By using these compilers rather than gcc, we get about 9% to 14% better MySQL performance.
Note that until MySQL version 3.23.52 and 4.0.2, we optimized
the binary for the current CPU only (by using the
-fast compile option). This means that for
older versions, you can use our Alpha binaries only if you
have an Alpha EV6 processor.
For all subsequent releases, we added the
generic flag to our compile options, which ensures
that the binary runs on all Alpha processors. We also compile
statically to avoid library problems. The
configure command looks like this:
CC=ccc CFLAGS="-fast -arch generic" CXX=cxx \ CXXFLAGS="-fast -arch generic -noexceptions -nortti" \ ./configure --prefix=/usr/local/mysql --disable-shared \ --with-extra-charsets=complex --enable-thread-safe-client \ --with-mysqld-ldflags=-non_shared --with-client-ldflags=-non_shared
Some known problems when running MySQL on Linux-Alpha:
Debugging threaded applications like MySQL does not work
gdb 4.18. You should use
gdb 5.1 instead.
If you try linking mysqld statically
when using gcc, the resulting image
dumps core at startup time. In other words, do