Date: Tue, 21 Sep 2010 09:26:21 +0300 From: Andriy Gapon <avg@freebsd.org> To: Jeff Roberson <jroberson@jroberson.net> Cc: Andre Oppermann <andre@freebsd.org>, Jeff Roberson <jeff@freebsd.org>, Robert Watson <rwatson@freebsd.org>, freebsd-hackers@freebsd.org Subject: Re: zfs + uma Message-ID: <4C98500D.5040109@freebsd.org> In-Reply-To: <alpine.BSF.2.00.1009181135430.23448@desktop> References: <4C93236B.4050906@freebsd.org> <4C935F56.4030903@freebsd.org> <alpine.BSF.2.00.1009181221560.86826@fledge.watson.org> <alpine.BSF.2.00.1009181135430.23448@desktop>
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on 19/09/2010 01:16 Jeff Roberson said the following: > Additionally we could make a last ditch flush mechanism that runs on each cpu in How would you qualify a "last ditch" trigger? Would this be called from "standard" vm_lowmem look or would there be some extra check for even more severe memory condition? > turn and flushes some or all of the buckets in per-cpu caches. Presently that is > not done due to synchronization issues. It can't be done from a central place. > It could be done with a callout mechanism or a for loop that binds to each core > in succession. -- Andriy Gapon
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