> On 08 Oct 2015, at 11:17, Bram Van Steenlandt <bram@diomedia.be> wrote:
>
> The database (9.2.9) on the server (freebsd10) runs on a zfs mirror.
> If I copy a file to the mirror using scp I get 37MB/sec
> My script achieves something like 7 or 8MB/sec on large (+100MB) files.
This may help - great blog article about ZFS with postgres and how use you can zfs compression to boost i/o performance
substantially.
If your machine is making a lot of smaller writes in postgres (as opposed to presumably large writes by scp) then this
mayalleviate things a bit.
https://www.citusdata.com/blog/64-zfs-compression
Graeme Bell
p.s. Apologies for top-posting on my previous message.
