Date: Sun, 03 Jan 2016 02:54:41 -0500 From: "Mikhail T." <mi+thun@aldan.algebra.com> To: =?UTF-8?Q?Karli_Sj=c3=b6berg?= <karli.sjoberg@slu.se> Cc: "freebsd-fs@FreeBSD.org" <freebsd-fs@FreeBSD.org> Subject: Re: NFS reads vs. writes Message-ID: <5688D3C1.90301@aldan.algebra.com> In-Reply-To: <8291bb85-bd01-4c8c-80f7-2adcf9947366@email.android.com> References: <8291bb85-bd01-4c8c-80f7-2adcf9947366@email.android.com>
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On 03.01.2016 02:16, Karli Sjöberg wrote:
>
> The difference between "mount" and "mount -o async" should tell you if
> you'd benefit from a separate log device in the pool.
>
This is not a ZFS problem. The same filesystem is being read in both
cases. The same data is being read from and written to the same
filesystems. For some reason, it is much faster to read via NFS than to
write to it, however.
And finally, just to put the matter to rest, both ZFS-pools already have
a separate zil-device (on an SSD).
-mi
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