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Overview
Comment:fix typo in documentation
Timelines: family | ancestors | descendants | both | trunk
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SHA1:652004d52e3f6a3712f781c28b096155ae82a1a0
User & Date: brandon 2013-11-17 16:45:21
Context
2013-11-17
16:48
update online documentation check-in: 3d0e1f4fd2 user: brandon tags: trunk
16:45
fix typo in documentation check-in: 652004d52e user: brandon tags: trunk
16:44
update online documentation check-in: 49ffcaef99 user: brandon tags: trunk
Changes

Changes to doc/zeptodb.texi.

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number of buckets is smaller than the number of items, then when you go
to fetch an item from a bucket, you might then have to search through
all the items in that bucket to find the one that you want.  This might
slow you down.  On the other hand, if the number of buckets is far
greater than the maximum number of items that will be added, the
algorithm will be wasteful.  Thus it's best to use a number of buckets
that will be slightly greater than the expected maximum number of items.
As a rule of them, use about four times more buckets.

The second option is the size (in bytes) of the memory mapped region to
use, via the @option{-m}/@option{--mmap-size} option.  While the
database is stored on the disk as a file, when it is opened by zeptodb,
some or all of that file is mapped in a one-to-one manner with a region
of virtual memory.  Thus, when the program reads from some address in
that region of memory, it reads directly from the corresponding address







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131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
number of buckets is smaller than the number of items, then when you go
to fetch an item from a bucket, you might then have to search through
all the items in that bucket to find the one that you want.  This might
slow you down.  On the other hand, if the number of buckets is far
greater than the maximum number of items that will be added, the
algorithm will be wasteful.  Thus it's best to use a number of buckets
that will be slightly greater than the expected maximum number of items.
As a rule of thumb, use about four times more buckets.

The second option is the size (in bytes) of the memory mapped region to
use, via the @option{-m}/@option{--mmap-size} option.  While the
database is stored on the disk as a file, when it is opened by zeptodb,
some or all of that file is mapped in a one-to-one manner with a region
of virtual memory.  Thus, when the program reads from some address in
that region of memory, it reads directly from the corresponding address