Xen: reduce memory required for cpu_evtchn_mask

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Impact: reduce memory usage.

Reduce this significant gain in the amount of memory used
when NR_CPUS bumped from 128 to 4096 by allocating the
array based on nr_cpu_ids:

    65536  +2031616   2097152 +3100%  cpu_evtchn_mask(.bss)

Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: virtualization@lists.osdl.org
Cc: xen-devel@lists.xensource.com

...

This commit is contained in:

Mike Travis 2009-01-10 21:58:11 -08:00 • committed by Ingo Molnar

parent d38b223c86

commit c7a3589e7a

1 changed files with 16 additions and 5 deletions

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drivers/xen/events.c

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