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Date:      Wed, 6 Aug 2014 14:53:14 +0300
From:      Stefan Parvu <sparvu@systemdatarecorder.org>
To:        freebsd-hackers@freebsd.org
Subject:   memory utilization questions
Message-ID:  <20140806145314.643dcc34a360f8284083930e@systemdatarecorder.org>
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Im planning to calculate real used, free memory. Can anyone confirm if these
are correct:

1. real used memory

 usedmem = totalmem - freemem,

    totalmem = vm.stats.vm.v_page_count x page_size
    freemem = vm.stats.vm.v_free_count x page_size


 2. real free memory

    realfree = inactive + cache + free ?

    inactive = vm.stats.vm.v_inactive_count x page_size
    cache = vm.stats.vm.v_cache_count x page_size
    free = vm.stats.vm.v_free_count x page_size


Thanks,
-- 
Stefan Parvu <sparvu@systemdatarecorder.org>

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