doc: Improve description of min_dynamic_shared_memory
While on it, fix one oversight in 90fbf7c
, that introduced a reference
to an incorrect value for the compression level of pg_dump.
Author: Justin Pryzby
Reviewed-by: Thomas Munro, Michael Paquier
Discussion: https://postgr.es/m/CA+hUKGJRTLWWPcQfjm_xaOk98M8aROK903X92O0x-4vLJPWrrA@mail.gmail.com
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@ -1939,13 +1939,13 @@ include_dir 'conf.d'
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<listitem>
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<listitem>
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<para>
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<para>
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Specifies the amount of memory that should be allocated at server
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Specifies the amount of memory that should be allocated at server
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startup time for use by parallel queries. When this memory region is
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startup for use by parallel queries. When this memory region is
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insufficient or exhausted by concurrent queries, new parallel queries
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insufficient or exhausted by concurrent queries, new parallel queries
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try to allocate extra shared memory temporarily from the operating
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try to allocate extra shared memory temporarily from the operating
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system using the method configured with
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system using the method configured with
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<varname>dynamic_shared_memory_type</varname>, which may be slower due
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<varname>dynamic_shared_memory_type</varname>, which may be slower due
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to memory management overheads. Memory that is allocated at startup
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to memory management overheads. Memory that is allocated at startup
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time with <varname>min_dynamic_shared_memory</varname> is affected by
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with <varname>min_dynamic_shared_memory</varname> is affected by
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the <varname>huge_pages</varname> setting on operating systems where
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the <varname>huge_pages</varname> setting on operating systems where
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that is supported, and may be more likely to benefit from larger pages
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that is supported, and may be more likely to benefit from larger pages
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on operating systems where that is managed automatically.
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on operating systems where that is managed automatically.
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@ -332,7 +332,6 @@ struct _archiveHandle
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int compression; /*---------
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int compression; /*---------
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* Compression requested on open().
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* Compression requested on open().
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* Possible values for compression:
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* Possible values for compression:
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* -2 ZSTD_COMPRESSION
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* -1 Z_DEFAULT_COMPRESSION
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* -1 Z_DEFAULT_COMPRESSION
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* 0 COMPRESSION_NONE
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* 0 COMPRESSION_NONE
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* 1-9 levels for gzip compression
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* 1-9 levels for gzip compression
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