Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

You may also try the Sun's F5100 (flash storage array) - you may easily get 700 MB/s just with a single I/O stream (single process), so just with 2 streams you'll get your throughput.. - The array has 2TB total space and max throughput should be around 4GB/s.. Rgds, -Dimitri On 11/18/10, Greg Sm

Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

Eric Comeau wrote: Ideally 1 large file, but it may have to be multiple. We find that if we send multiple files it just causes the disk to thrash more so we get better throughput by sending one large file. If it's really one disk, sure. The problem you're facing is that your typical drive co

Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

On 10-11-17 12:28 PM, Merlin Moncure wrote: On Wed, Nov 17, 2010 at 9:26 AM, Eric Comeau wrote: > This is not directly a PostgreSQL performance question but I'm hoping some > of the chaps that build high IO PostgreSQL servers on here can

Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

On Nov 17, 2010, at 10:48 AM, Scott Carey wrote: >> >> Off hand, I would suggest: >> >> 8x http://www.kingston.com/ssd/vplus100.asp (180MB/sec sustained write) >> stripped (RAID 0, you did say that you don't care about safety). That >> should be 1.44GB/sec write, minus overhead. > > Can get c

Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

On Nov 17, 2010, at 7:28 AM, Digimer wrote: > On 11/17/2010 09:26 AM, Eric Comeau wrote: >> This is not directly a PostgreSQL performance question but I'm hoping >> some of the chaps that build high IO PostgreSQL servers on here can help. >> >> We build file transfer acceleration s/w (and use Po

Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

On Wed, Nov 17, 2010 at 9:26 AM, Eric Comeau wrote: > This is not directly a PostgreSQL performance question but I'm hoping some > of the chaps that build high IO PostgreSQL servers on here can help. > > We build file transfer acceleration s/w (and use PostgreSQL as our database) > but we need to

Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

On Wed, 17 Nov 2010 09:26:56 -0500 Eric Comeau wrote: > This is not directly a PostgreSQL performance question but I'm hoping > some of the chaps that build high IO PostgreSQL servers on here can help. > > We build file transfer acceleration s/w (and use PostgreSQL as our > database) but we ne

Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

On 11/17/2010 09:26 AM, Eric Comeau wrote: This is not directly a PostgreSQL performance question but I'm hoping some of the chaps that build high IO PostgreSQL servers on here can help. We build file transfer acceleration s/w (and use PostgreSQL as our database) but we need to build a test serv

Re: [PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

On Wednesday 17 November 2010 15:26:56 Eric Comeau wrote: > This is not directly a PostgreSQL performance question but I'm hoping > some of the chaps that build high IO PostgreSQL servers on here can help. > > We build file transfer acceleration s/w (and use PostgreSQL as our > database) but we ne

[PERFORM] How to achieve sustained disk performance of 1.25 GB write for 5 mins

This is not directly a PostgreSQL performance question but I'm hoping some of the chaps that build high IO PostgreSQL servers on here can help. We build file transfer acceleration s/w (and use PostgreSQL as our database) but we need to build a test server that can handle a sustained write thro