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b7389000
2012 Sep 28
1
High memory needs [SOLVED]
...esses, the virtual memory
overestimates the real memory of the process by, at least, the part of
the locale-archive file which is memory-mapped.
Apparently, on 32bits distros, and on most 64bits distros, only a part
of the locale-archive file is mmapped: for instance on CentOS 32 bits:
$ pmap $$
b7689000 2048K r---- /usr/lib/locale/locale-archive
Only 2MB of the file are mmapped, while the file is actually ~54MB.
Some distros only install a small subsets of languages, for instance
on my Ubuntu 12.04, this file is only ~3MB.
I still don't get the reason, but CentOS x86_64 6.2 (and 6.3) mmapp...