Date: Tue, 30 Sep 2014 00:24:31 -0500 From: Alan Cox <alan.l.cox@gmail.com> To: Paul Koch <paul.koch@akips.com> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: 10.1 mmap MAP_NOSYNC regression due to fast path Message-ID: <CAJUyCcOcdZBfUcvJbwbHNY9VRNWum_hUO1Gtgmw95VAzfgxvOg@mail.gmail.com> In-Reply-To: <20140930115407.01ce9776@akips.com> References: <20140930115407.01ce9776@akips.com>
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On Mon, Sep 29, 2014 at 8:54 PM, Paul Koch <paul.koch@akips.com> wrote: > Hi, just wondering if the regression introduced by the changes for > 'fast path' to the mmap MAP_NOSYNC behaviour will be fixed for 10.1 ? > > Yes, it will be. I've just been overloaded with work for the past few weeks, so kib@ and I haven't agreed on the final fix. > > http://lists.freebsd.org/pipermail/freebsd-hackers/2014-September/045981.html > > We have been doing some testing with 10.1-BETA3 and the regression makes > 10.1 completely unusable because we rely very heavily on this long standing > feature of mmap. Our database design mmaps large files (eg. several > gigabytes) > and we manually control when the sync happens by using fsync() at > appropriate > times. > > Paul. > > -- > Paul Koch | Founder, CEO > AKIPS Network Monitor > http://www.akips.com > Brisbane, Australia > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >
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