Re: cdb self-tests, was Re: GCC 3.2 errors

clemens fischer writes:
> since the test-case here is memory consumption, you should lower the
> softlimit in rts.tests.

No. Each record takes more than 10 bytes of memory, so 5000 records
take more than 50000 bytes. The problem is that Linux malloc() sometimes
uses mmap(), making the data-segment resource limit practically useless.

One fix is to use softlimit -m instead of softlimit -d. But some systems
use an astonishing amount of memory on process startup, so reasonable -m
settings end up aborting the startup rather than limiting the program's
use of malloc().

---D. J. Bernstein, Associate Professor, Department of Mathematics,
Statistics, and Computer Science, University of Illinois at Chicago