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Postgresql 9.1 on VMWare ESXi 5.0

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Dear friends,

Anyone has experienced extreme slowness running PostgreSQL 9.1.4 on virtualized CentOS 5.8 on VMware ESXi 5.0 (with all Paravirtualized drivers)?

By extreme slowness, consider a query that brings one record from a table with 5000 records (using the PK as criteria) takes 200ms... for comparision, it takes 0ms in my local server (not virtualized).

I can see that disks have almost same performance as physical disks: 110Mb/s.

Your help will be greatly appreciated!

Regards,

Edson


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