improve magento performance by deactivate db logging and a few page parts

config.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
    <modules>
        <Cotya_Performance>
            <version>0.1.0</version>
        </Cotya_Performance>
    </modules>


    <frontend>
        <events>
            <controller_action_postdispatch>
                <observers>
                    <log>
                        <type>disabled</type>
                    </log>
                </observers>
            </controller_action_postdispatch>
        </events>
    </frontend>

</config>

layout_local.xml

<?xml version="1.0"?>
<layout version="0.1.0">

    <default>
        <remove name="top.search"/>
        <remove name="left.permanent.callout"/>
        <remove name="right.permanent.callout"/>
        <remove name="catalog.compare.sidebar"/>
        <remove name="paypal.partner.top_cart.shortcut"/>
        <remove name="cart_sidebar"/>
        <remove name="cart_sidebar.extra_actions"/>
        <remove name="right.reports.product.viewed"/>
        <remove name="right.reports.product.compared"/>
        <remove name="tags_popular"/>
        <remove name="paypaluk.partner.top_cart.shortcut"/>
        <remove name="paypal.partner.right.logo"/>
        <remove name="sale.reorder.sidebar"/>
        <reference name="top.menu">
            <remove name="catalog.topnav"/>
        </reference>
    </default>

</layout>