Hi!

I installed the valgrind spkg, exported SAGE_VALGRIND="yes" and did
"sage -ba". Apparently it worked, because doing "sage -valgrind" now
gave me information about memory leaks and stuff.

Is it correct that the above makes sage slower, even if I only do
"sage" and not "sage -valgrind"?

If it is correct: How can I uninstall valgrind? I tried to do "sage -
ba" without SAGE_VALGRIND="yes". But still, when I start sage then a
valgrind process appears in the list of processes. Moreover, when I
start "top", sage appears as "memcheck" in, where it is usually called
"ipython".

Do you recommend building Sage from scratch, or will there be no time
regression unless I use "sage -valgrind"?

Cheers,
  Simon

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