use MALLOC_PERTURB_ ... or lose

Andreas Schwab schwab at
Thu May 6 08:12:09 UTC 2010

Jim Meyering <jim at> writes:

> Michal Schmidt wrote:
>> Would export MALLOC_CHECK_=3 be a useful addition too?
> Does that impose much of a performance impact?
> I haven't used it or measured it enough to know off hand.

openSUSE Factory is setting it by default since several years (it gets
disabled again in releases).  I don't remember having heard of


Andreas Schwab, schwab at
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