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make is much slower in eclipse [message #188431]

Thu, 29 March 2007 07:31

Eclipse User

Originally posted by: fwein.lse.eei.uni-erlangen.de

Hi,

Since today (?) (standard) make is suddenly very slow.

I use cmake and did a verbose on the shell and in eclipse:

/home/fwein/bin/cmake -H/space/fwein/cfs -B/space/fwein/cfs/debug_build --check-build-system
CMakeFiles/Makefile.cmake 0
/home/fwein/bin/cmake -E cmake_progress_start /space/fwein/cfs/debug_build/CMakeFiles 100
make -f CMakeFiles/Makefile2 all
make[1]: Entering directory `/space/fwein/cfs/debug_build'
make -f source/OLAS/algsys/CMakeFiles/algsys-olas.dir/build.make
source/OLAS/algsys/CMakeFiles/algsys-olas.dir/depend
make[2]: Entering directory `/space/fwein/cfs/debug_build'
make[2]: Nothing to be done for `source/OLAS/algsys/CMakeFiles/algsys-olas.dir/depend'.
make[2]: Leaving directory `/space/fwein/cfs/debug_build'
make -f source/OLAS/algsys/CMakeFiles/algsys-olas.dir/build.make
.....

It takes about 30 seconds to check that everywhere "nothing to be done..."
On the shell it is about 1 second.

I have 4 Opteron cores and allow from 256 to 1500 MB und Linux with the newest
release eclipse and CDT.

Thanks for any ideas!

Fabian

Re: make is much slower in eclipse - solved [message #188465 is a reply to message #188431]

Thu, 29 March 2007 12:03

Eclipse User

Originally posted by: fwein.lse.eei.uni-erlangen.de

Hi, I solved the problem:

> Since today (?) (standard) make is suddenly very slow.
> I use cmake and did a verbose on the shell and in eclipse:
> It takes about 30 seconds to check that everywhere "nothing to be done..."
> On the shell it is about 1 second.

The reason is, that I installed a new JRE locally in my home
(I have no root rights on that machine).

I called set in the make file and in the eclipse case the java libs
(~/lib/amd64/*) are in the beginning of the LD_LIBRARY_PATH. Now
my home is on a NFS server and this one seems to be slow!

This leads to the conclusion, that executing a make which compiles
a C++ application can be slowed down when using a java installed on
an NFS server :)

Fabian

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