linux Async io

From: "Hsieh, Joan" <Joan.Hsieh@xxxxxxxxx>
To: oracle_l <ORACLE-L@xxxxxxxxxxxxx>
Date: Fri, 22 Mar 2013 16:47:03 +0000

Hi,
We are migrating DW database from AIX to linux, the online transaction is ok 
compared to AIX. But the batch job is 35% slower  than AIX.  Of course, the 
architecture are different, the storage is Netapps on Linux. From the awa 
report. 60% time is user IO waiting.  I'm not sure how to read the following 
information, is it async io enabled?

Thank,

Joan

dwdb-prod-01:c0ra1e)SDWPRD:/oracle/product/11.2.0.3/bin> cat /proc/slabinfo | 
grep kio
kioctx                56     80    384   10    1 : tunables   54   27    8 : 
slabdata      8      8      0
kiocb                  0      0    256   15    1 : tunables  120   60    8 : 
slabdata      0      0      0
dwdb-prod-01:c0ra1e)SDWPRD:/oracle/product/11.2.0.3/

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