re: port-amd64/52679: amd64 pmap page leak?

[Paul Goyette <paul%whooppee.com@localhost>]

The following reply was made to PR port-amd64/52679; it has been noted by GNATS.

From: Paul Goyette <paul%whooppee.com@localhost>
To: matthew green <mrg%eterna.com.au@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, port-amd64-maintainer%netbsd.org@localhost, 
    gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, dholland%NetBSD.org@localhost
Subject: re: port-amd64/52679: amd64 pmap page leak?
Date: Sat, 4 Nov 2017 11:54:34 +0800 (+08)

 On Sat, 4 Nov 2017, Paul Goyette wrote:
 
 >>>  On my amd64 8.99.3 system (with 128GB RAM), my discrepancy is > 8%
 >>>
 >>>        4096 bytes per page
 >>>           8 page colors
 >>>    32572896 pages managed
 >>>    20457781 pages free
 >>>     9365903 pages active
 >>>       34169 pages inactive
 >>>           0 pages paging
 >>>       19572 pages wired
 >>>    12383934 zero pages
 >>> free+active+inactive+paging+wired = 29,877,425, which is only 91.7%
 >>> of managed pages...
 
 That leaves a "missing" count of 2,695,471 ...
 
 > vmstat -m reported 9GB, which is more than what's missing above.
 
 The actual number from vmstat is
 
 In use 9740352K, total allocated 9939724K; utilization 98.0%
 
 That 9.9GB of pool from vmstat -m translates to about 2,426,690 pages, 
 which is _very_close_ to missing 2,695,471 million pages!
 
 
 
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