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re: port-amd64/52679: amd64 pmap page leak?
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 11:35:34 +0800 (+08)
On Sat, 4 Nov 2017, matthew green wrote:
>> Just one more data-point...
>>
>> 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 = 29877425, which is only 91.7% of
>> managed pages...
>
> how much does vmstat -m say is used total? does that account for
> most of the remaining?
vmstat -m reported 9GB, which is more than what's missing above.
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