Date: Sat, 28 Mar 2015 13:58:09 +0100 (CET) From: Wojciech Puchar <wojtek@puchar.net> To: Alexander Motin <mav@FreeBSD.org> Cc: freebsd-fs@FreeBSD.org, "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: MAXBSIZE increase Message-ID: <alpine.BSF.2.20.1503281353580.809@laptop.wojtek.intra> In-Reply-To: <5515C421.4040703@FreeBSD.org>
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i routinely put options MAXPHYS=2097152 on my servers. no problems, except MUCH enhanced performance on large files. with UFS. SOME SSDs (few) doesn't work properly with >1MB requests. no idea about ZFS. with NFS do not ever expect good performance with it's sync mode. if you like to take a risk add vfs.nfsd.async=1 to sysctl.conf unless your NFS clients depend on forced syncs, the risk is actually no higher that running normal UFS filesystem locally. And performance is excellent.home | help
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