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Commit338c303

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Merge branch 'PGPROEE9_6' of gitlab.postgrespro.ru:pgpro-dev/postgrespro into PGPROEE9_6
2 parents5a063ea +77f2164 commit338c303

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‎doc/src/sgml/config-one-c.sgml

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</para>
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</listitem>
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<listitem>
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<para>
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Set the <varname>effective_cache_size</varname> parameter to at least half of <acronym>RAM</acronym>
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available on the system. <productname>&productname;</productname> query optimizer performance
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depends on the amount of allocated <acronym>RAM</acronym>.
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</para>
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</listitem>
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<listitem>
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<para>Optimize query planning using <link linkend="online-analyze"><filename>online_analyze</filename></link> and <link linkend="plantuner"><filename>plantuner</filename></link> extensions, as follows:
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</para>
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</listitem>
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</orderedlist>
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</appendix>
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<tip>
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<para>
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To improve performance, you can also use redundant array of independent disks (<acronym>RAID</acronym>) technology
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based on non-volatile cache <acronym>RAID</acronym> controllers with uninterruptible power supply (<acronym>UPS</acronym>).
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Since this technology ensures data consistency in case of hardware failure, you can speed up disk writes by
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disabling the <varname>fsync</varname> parameter. Additionally, increasing the <acronym>RAID</acronym> controller cache
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volume and the number of disks in the <acronym>RAID</acronym> array can improve performance even with
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enabled <varname>fsync</varname>.
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</para>
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</tip>
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</appendix>

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