Re: Need more IOPS? This should get you drooling... (5xnvme drives)

From: Dorian Hoxha <dorian(dot)hoxha(at)gmail(dot)com>
To: "Graeme B(dot) Bell" <grb(at)skogoglandskap(dot)no>
Cc: postgres performance list <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Need more IOPS? This should get you drooling... (5xnvme drives)
Date: 2015-06-04 11:29:49
Message-ID: CANsFX05ms8QcA4vxzBZ8zpv=s60CAXPN_3Wk+SVAhKSL6G3ULA@mail.gmail.com
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This looks great when you want in-memory (something like unlogged tables)
and you also want replication. (meaning, I don't know of an alternative to
get replication with unlogged than to just get faster drives + logged
tables?)

On Thu, Jun 4, 2015 at 1:23 PM, Graeme B. Bell <grb(at)skogoglandskap(dot)no>
wrote:

>
> Images/data here
>
>
> http://www.pcper.com/reviews/Storage/Five-Intel-SSD-750s-Tested-Two-Million-IOPS-and-10-GBsec-Achievement-Unlocked
>
>
>
> On 04 Jun 2015, at 13:07, Graeme Bell <grb(at)skogoglandskap(dot)no> wrote:
>
> > I previously mentioned on the list that nvme drives are going to be a
> very big thing this year for DB performance.
> >
> > This video shows what happens if you get an 'enthusiast'-class
> motherboard and 5 of the 400GB intel 750 drives.
> > https://www.youtube.com/watch?v=-hE8Vg1qPSw
> >
> > Total transfer speed: 10.3 GB/second.
> > Total IOPS: 2 million (!)
> >
> > + nice power loss protection (Intel)
> > + lower latency too - about 20ms vs 100ms for SATA3 (
> http://www.anandtech.com/show/7843/testing-sata-express-with-asus/4)
> > + substantially lower CPU use per I/O (
> http://www.anandtech.com/show/8104/intel-ssd-dc-p3700-review-the-pcie-ssd-transition-begins-with-nvme/5
> )
> >
> > You're probably wondering 'how much' though?
> > $400 per drive! Peanuts.
> >
> > Assuming for the moment you're working in RAID0 or with tablespaces, and
> just want raw speed:
> > $2400 total for 2 TB of storage, including a good quality motherboard,
> with 2 million battery backed IOPS and 10GB/second bulk transfers.
> >
> > These drives are going to utterly wreck the profit margins on high-end
> DB hardware.
> >
> > Graeme Bell
> >
> > p.s. No, I don't have shares in Intel, but maybe I should...
> >
> >
>
>
>
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