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Linux Alpha Notes
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MySQL Version 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.  The main thing we haven't yet had time to
test is how things works with many concurrent users.

When we compiled the standard MySQL binary we are using SuSE 6.4,
kernel 2.2.13-SMP, Compaq C compiler (V6.2-504) and Compaq C++ compiler
(V6.3-005) on a Comaq DS20 machine with an Alpha EV6 processor.

You can find the above compilers at
`http://www.support.compaq.com/alpha-tools').  By using these compilers,
instead of gcc, we get about 9-14 % better performance with MySQL.

Note that the configure line optimized the binary for the current CPU;
This means you can only use our binary if you have an Alpha EV6
processor. We also compile statically to avoid library problems.

     CC=ccc CFLAGS="-fast" CXX=cxx CXXFLAGS="-fast -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

If you want to use egcs the following configure line worked for us:

     CFLAGS="-O3 -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O3 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --disable-shared

Some known problems when running MySQL on Linux-Alpha:

   * Debugging threaded applications like MySQL will not work with `gdb
     4.18'.  You should download and use gdb 5.0 instead!

   * If you try linking `mysqld' statically when using `gcc', the
     resulting image will core dump at start.  In other words, *DON'T*
     use `--with-mysqld-ldflags=-all-static' with `gcc'.