Date: Tue, 21 Nov 2017 09:21:04 -0800 From: pete wright <nomadlogic@gmail.com> To: Patrick Lamaiziere <patfbsd@davenulle.org> Cc: freebsd-questions <questions@freebsd.org> Subject: Re: top(1) Laundry memory ? Message-ID: <CAGBmCT7q4N73HbM-U9FQ%2BdXTvXu86VJLVDhW1TwmVT-H_dWSew@mail.gmail.com> In-Reply-To: <20171121093459.4508a629@mr185083> References: <20171121093459.4508a629@mr185083>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Nov 21, 2017 at 12:34 AM, Patrick Lamaiziere <patfbsd@davenulle.org> wrote: > Hi, > > In FreeBSD 11, there is something new in top(1) : laundry memory stats. > > Ex: > Mem: 884M Active, 1330M Inact, 415M Laundry, 5175M Wired, 782M Buf, 84M > Free > > Can someone explain what is this memory please ? > > man top: > Physical Memory Stats > Active: > number of bytes active > > Inact: number of clean bytes inactive > > Laundry: > number of dirty bytes queued for laundering > this is probably something that should be added to the FreeBSD memory wiki and/or handbook. My understanding of it comes from this thread: http://freebsd.1045724.x6.nabble.com/PQ-LAUNDRY-td6142103.html "The PQ_LAUNDRY branch adds a new page queue, PQ_LAUNDRY, to store dirty pages that have passed once through the inactive queue." It also references this diff: https://reviews.freebsd.org/D8302 hope this helps! -pete -- pete wright www.nycbug.org @nomadlogicLA
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAGBmCT7q4N73HbM-U9FQ%2BdXTvXu86VJLVDhW1TwmVT-H_dWSew>