vivek.nandavanam 22783a4725 Patch for fixing hardware.memory.used metric
Change SNMP 'hardware.memory.used' metric
to reflect (memTotalReal - memAvailReal) which is the used value
for the memory for a physical machine.

This has to be done as SNMP does not provide a memory metric
for used that can be directly used.

Closes-Bug: #1321537

Change-Id: Ibd8cd38ef15a9e86ccd942412b80e90e3762dd44
2015-02-19 08:42:06 -08:00
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