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Comment:Fix a typo in mmap.html.
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SHA1: 04448addda33fd313d320c1bb9cd669df9439242
User & Date: drh 2013-05-23 22:56:49.612
Context
2013-05-28
13:23
Clarify the license for SQLite documentation. (check-in: 419389e585 user: drh tags: trunk)
2013-05-23
22:56
Fix a typo in mmap.html. (check-in: 04448addda user: drh tags: trunk)
11:48
Update the documentation for PRAGMA mmap_size to explain that it can sometimes be a no-op. (check-in: a577a4e618 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to pages/mmap.in.
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<li><p>Performance does not always increase with memory-mapped I/O.  In fact,
    it is possible to construct test cases where performance is reduced
    by the use of memory-mapped I/O, though this is hard to do.</p>
</ol>

<p>Because of the potential disadvantages, memory-mapped I/O is turned
off by default.  To active memory-mapped I/O, use the [mmap_size pragma]
and set the mmap_size to some large number, usually 256MB or larger, depending
on how much address space your application can spare.  The rest is
automatic.  The [PRAGMA mmap_size] statement will be a silent no-op on
systems that do not support memory-mapped I/O.</p>

<h2>How Memory-Mapped I/O Works</h2>









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<li><p>Performance does not always increase with memory-mapped I/O.  In fact,
    it is possible to construct test cases where performance is reduced
    by the use of memory-mapped I/O, though this is hard to do.</p>
</ol>

<p>Because of the potential disadvantages, memory-mapped I/O is turned
off by default.  To activate memory-mapped I/O, use the [mmap_size pragma]
and set the mmap_size to some large number, usually 256MB or larger, depending
on how much address space your application can spare.  The rest is
automatic.  The [PRAGMA mmap_size] statement will be a silent no-op on
systems that do not support memory-mapped I/O.</p>

<h2>How Memory-Mapped I/O Works</h2>
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