Date: Wed, 16 Mar 2005 09:16:39 +0300 From: Sergey Matveychuk <sem@FreeBSD.org> To: Jeff Roberson <jroberson@chesapeake.net> Cc: Peter Edwards <peadar.edwards@gmail.com> Subject: Re: unionfs 5.4 Message-ID: <4237CF47.1010806@FreeBSD.org> In-Reply-To: <20050315085943.A20708@mail.chesapeake.net> References: <87is46kzk1.fsf@neva.vlink.ru> <41C26F23F7DF023CB3DF35C5@cc-171.int.t-online.fr> <20050305151903.GC26240@hub.freebsd.org> <87mzth18e2.fsf@neva.vlink.ru> <1DE178D508C1D70D1B5F9E87@cc-171.int.t-online.fr> <874qfpupk5.fsf@neva.vlink.ru> <DDE9BD25F957493B50EE49C5@cc-171.int.t-online.fr> <423027B1.8080503@FreeBSD.org> <34cb7c84050310091243cdc342@mail.gmail.com> <4234410C.5080804@FreeBSD.org> <20050315085943.A20708@mail.chesapeake.net>
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Jeff Roberson wrote: >>just ffs: 1:47 min >>nullfs: 1:43 min (oops!:) >>nullfs in jail: 12:12 min >> >>Almost ten times degradation. > > > Can you try this again on current? I just committed some changes to > nullfs which vastly simplify the locking. I don't see anything inherent > in the code that should cause such a slowdown. The problem has gone. Thanks Jeff! Don't forget MFC it some time :) -- Sem.
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