[wellylug] /dev/anon [was Forking Linux.]

Donald Gordon don at dis.org.nz
Wed Nov 10 16:50:04 NZDT 2004


On Wed, 10 Nov 2004 16:44:56 +1300 (NZDT), David Antliff <dave.antliff at paradise.net.nz> wrote:
> On Wed, 10 Nov 2004, Phillip Hutchings wrote:
> > +DA is /dev/anon patches
> 
> Interesting - what's /dev/anon for?

User Mode Linux.

It lets it allocate anonymous mmapable memory.  Otherwise it has to open
files in /tmp, mmap them, and unlink them.  Which, if /tmp is on disk,
can be slow, and if it's tmpfs, you may run out of space (*cough*).

donald




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