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Re: postgresql random io test with 2 SSD Kingston V+100 500GB in (software) Raid1

From: Shaun Thomas <sthomas(at)peak6(dot)com>
To: Laurent Laborde <kerdezixe(at)gmail(dot)com>
Cc: Jeff <threshar(at)torgo(dot)978(dot)org>, <pgsql-performance(at)postgresql(dot)org>
Subject: Re: postgresql random io test with 2 SSD Kingston V+100 500GB in (software) Raid1
Date: 2011-04-20 15:40:13
Message-ID: 4DAEFE5D.8020006@peak6.com (view raw or flat)
Thread:
Lists: pgsql-performance
On 04/20/2011 09:01 AM, Laurent Laborde wrote:

> A review of the V+100 on the excellent anandtech :
> http://www.anandtech.com/show/4010/kingston-ssdnow-v-plus-100-review

That's horrifying. 4.9MB/s random writes? 19.7MB/s random reads? That's 
at least an order of magnitude lower than other SSDs of that generation. 
I can't imagine that would be very good for database usage patterns by 
comparison. Especially with that aggressive garbage collection.

I mean... an old Indilinx OCZ Vertex has better performance than that.

-- 
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 800 | Chicago IL, 60604
312-676-8870
sthomas(at)peak6(dot)com

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