[Valgrind-developers] drd 2007-02-27

[Bart V. A. <bar...@gm...>]

A new drd version is available at the following location:
http://home.euphonynet.be/bvassche/valgrind/valgrind-6618-drd-2007-02-27.patch.gz

Changes compared to version 2007-02-22:
- Eliminated AMD64 false positives -- drd now behaves consistently on X86 and
AMD64.
- Started optimizing the bitmap implementation in drd -- drd now works
several times faster for clients with 10 threads or more. More work
has to be done in this area however. (Only bm_clear() and
bm_has_access() have been optimized. According to cachegrind,
VG_(OSet_Next)() is now the function that consumes most CPU cycles.)
- The soft link in .in_place/drd/default.supp is now created
automatically -- drd's default suppression file is not yet
automatically installed in the installation directory.
- Specifying Valgrind's option -v no longer triggers a crash in drd.
- Defined new pthread_pre_create tracking function.
- New command-line option: --trace-suppression.

Most important known bugs:
- drd is soon killed by the OOM handler when started with bigger clients.
- drd/default.supp has to be installed manually in the installation dir.

An example of how the patch can be applied and the regression tests can be run:
svn co svn://svn.valgrind.org/valgrind/trunk valgrind
cd valgrind
gzip -cd ../valgrind-6618-drd-2007-02-27.patch.gz | patch -p0 -
./autogen.sh
./configure --prefix=$PWD/inst
make -s
make -s check
chmod a+x drd/tests/filter_stderr
perl tests/vg_regtest drd

--
Regards,

Bart Van Assche.