Re: single session I/O bandwidth

From: Ls Cheng <exriscer_at_gmail.com>
Date: Tue, 12 Mar 2013 23:48:26 +0100
Message-ID: <CAJ2-Qb8AVWiiWbuuLimi75GhdtEHM7sc+=PhUutsxqX+5=fRZA_at_mail.gmail.com>

Hi
I did a few tests with different hardware today:

1. Sun M9000 (from 2008) and EMC VNX array, full table scan got around 70MB/sec
2. HP BL460 (from 2010) with Intel Xeon x5550 and 3PAR array, full table scan got 25MB/sec
3. IBM P750(from 2012) and IBM XIV array, full table scan got 180MB/sec

So it does look like the CPU is the limiting factor because with modern CPU, in this case P7 a single thread was able to read 180MB/sec

Thanks all

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Received on Tue Mar 12 2013 - 23:48:26 CET