Date: Wed, 1 Apr 2015 19:07:14 +0000 From: "Gumpula, Suresh" <Suresh.Gumpula@netapp.com> To: "Meyer, Conrad" <conrad.meyer@isilon.com>, "Gumpula, Suresh" <Suresh.Gumpula@netapp.com> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: BSD 8.1 and 9.1 memory increase Message-ID: <D141B96C.34593%gsuresh@netapp.com> In-Reply-To: <A3CAF0E84A34A540B4C74454358E003F370F872F@MX103CL02.corp.emc.com> References: <D12DE5E5.2F3FB%gsuresh@netapp.com> <D12DE5F8.2F3FE%gsuresh@netapp.com> <D140B84E.34458%gsuresh@netapp.com> <CBDA4B8C-D0F5-43C1-9E7E-604EA7DA4BCD@gmail.com> <A3CAF0E84A34A540B4C74454358E003F370F8673@MX103CL02.corp.emc.com> <D1418389.344F3%gsuresh@netapp.com> <D141B2D9.34581%gsuresh@netapp.com> <A3CAF0E84A34A540B4C74454358E003F370F872F@MX103CL02.corp.emc.com>
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Ok thanks!. I just booted up a machine with and without the change. And after an hour or so, looked at top output. Thanks Suresh On 4/1/15, 2:52 PM, "Meyer, Conrad" <conrad.meyer@isilon.com> wrote: >From: Gumpula, Suresh [Suresh.Gumpula@netapp.com] >Sent: Wednesday, April 01, 2015 11:42 AM >To: Gumpula, Suresh; Meyer, Conrad; Garrett Cooper >Cc: freebsd-hackers@freebsd.org; alc@freebsd.org >Subject: Re: BSD 8.1 and 9.1 memory increase > >I just tried the change you mentioned on unmapping unused entries , and >appears this saves good amount of real memory. On my idle machine it >shows ~20M + real memory savings. Specifically the inactive/wired pages >dropped down. >https://reviews.freebsd.org/D1263 > >And also drastic VSS size down for most of the processes. Is this >incomplete or Can I take this change ? > >Thanks >Suresh > >________________________________________ > >Hi, > >The criticisms in the comments on that review are still perfectly valid. >I would not use the patch as-is. > >It is surprising that you see rsz reductions with it. I think it's >probably an apples-to-oranges comparison and the application(s) have not >been warmed up yet. > >Best, >Conrad
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