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Date:      Wed, 18 Mar 2015 12:04:14 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        Mateusz Guzik <mjguzik@gmail.com>, John Baldwin <jhb@freebsd.org>,  freebsd-current <freebsd-current@freebsd.org>, Alan Cox <alc@freebsd.org>,  Ryan Stone <rysto32@gmail.com>
Subject:   Re: [PATCH] Convert the VFS cache lock to an rmlock
Message-ID:  <CAJ-VmokskdzPuyxgMHCxNM=tqh%2B6wU4fd02OXEXbyJtVdLpLjQ@mail.gmail.com>
In-Reply-To: <20150318175812.GA3512@dft-labs.eu>
References:  <CAFMmRNysnUezX9ozGrCpivPCTMYRJtoxm9ijR0yQO03LpXnwBQ@mail.gmail.com> <CAJUyCcMoRu7JMCWfYb3acBF=fNopKAV4Ge8-mhApjuJ7ujOqFg@mail.gmail.com> <20150313053203.GC9153@dft-labs.eu> <6376695.VOvhinOncy@ralph.baldwin.cx> <20150318175812.GA3512@dft-labs.eu>

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[snip]

Hihi!

Do you have a shell script or something that I can run on the power8
box to see if nathan's pmap locking changes eliminate at least that
global pmap lock we're seeing on amd64?


-a



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