Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1b5ih0-0002T5-4v for pgsql-performance@arkaria.postgresql.org; Wed, 25 May 2016 23:58:26 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1b5igz-0006hQ-Nj for pgsql-performance@arkaria.postgresql.org; Wed, 25 May 2016 23:58:25 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1b5ifJ-0003pg-0O for pgsql-performance@postgresql.org; Wed, 25 May 2016 23:56:41 +0000 Received: from smtp-out-so.shaw.ca ([64.59.136.138]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1b5ifF-0007gf-JE for pgsql-performance@postgresql.org; Wed, 25 May 2016 23:56:39 +0000 Received: from home.zioup.com ([96.51.153.133]) by shaw.ca with SMTP id 5ifAbXDKZN9d05ifBbRVgP; Wed, 25 May 2016 17:56:34 -0600 X-Authority-Analysis: v=2.2 cv=QZUkhYTv c=1 sm=1 tr=0 a=pcwx/iW1S4GNAxS9KzaPFA==:117 a=pcwx/iW1S4GNAxS9KzaPFA==:17 a=L9H7d07YOLsA:10 a=9cW_t1CCXrUA:10 a=s5jvgZ67dGcA:10 a=yrkiwgmsf1kA:10 a=FP58Ms26AAAA:8 a=pGLkceISAAAA:8 a=epTmVMiNAAAA:8 a=N8iSzGwtAAAA:8 a=rOj-9Glk2jchBOtw9YAA:9 a=BXzoaFa7bDgA:10 a=6LVbBl2NLSWPyIBDCKCu:22 a=6kGIvZw6iX1k4Y-7sg4_:22 a=ndEWmUVY6Yapc0oHF_P4:22 a=YHuoxGDvEISy2GqV2ok9:22 Received: from [172.29.230.44] (unknown [216.207.42.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by home.zioup.com (Postfix) with ESMTPSA id 957EFA0DED for ; Wed, 25 May 2016 17:56:31 -0600 (MDT) Subject: Re: Testing in AWS, EBS To: pgsql-performance@postgresql.org References: From: Yves Dorfsman Message-ID: <57463BAC.2090608@zioup.com> Date: Wed, 25 May 2016 17:56:28 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-CMAE-Envelope: MS4wfMOOYyhGCnNGL7q5cCLphvWEJr88JkN8epC2jqK9oZIrxgFPp0Nv/dmOAXi/0zFAzqGKs2JIpS2dFSyk/yoNb+/igiDj/8S/ybEomC6e+X4tEZuR0KA1 +jKxeVfsm+voG5MmzHLVFeTyma31nuPrSY4IFvffhZGGAHplwi1Y1qgQ2Baa0tIDE+jNCJzKH8cSig== X-Pg-Spam-Score: -2.6 (--) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-performance Precedence: bulk Sender: pgsql-performance-owner@postgresql.org Indeed, old-style disk EBS vs new-style SSd EBS. Be aware that EBS traffic is considered as part of the total "network" traffic, and each type of instance has different limits on maximum network throughput. Those difference are very significant, do tests on the same volume between two different type of instances, both with enough cpu and memory for the I/O to be the bottleneck, you will be surprised! On 2016-05-25 17:02, Rayson Ho wrote: > There are many factors that can affect EBS performance. For example, the type > of EBS volume, the instance type, whether EBS-optimized is turned on or not, etc. > > Without the details, then there is no apples to apples comparsion... > > Rayson > > ================================================== > Open Grid Scheduler - The Official Open Source Grid Engine > http://gridscheduler.sourceforge.net/ > http://gridscheduler.sourceforge.net/GridEngine/GridEngineCloud.html > > > > On Wed, May 25, 2016 at 6:34 PM, Tory M Blue > wrote: >> >> We are starting some testing in AWS, with EC2, EBS backed setups. >> >> What I found interesting today, was a single EBS 1TB volume, gave me >> something like 108MB/s throughput, however a RAID10 (4 250GB EBS >> volumes), gave me something like 31MB/s (test after test after test). >> >> I'm wondering what you folks are using inside of Amazon (not >> interested in RDS at the moment). >> >> Thanks >> Tory >> >> >> -- >> Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org > ) >> To make changes to your subscription: >> http://www.postgresql.org/mailpref/pgsql-performance -- http://yves.zioup.com gpg: 4096R/32B0F416 -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance