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<! "@(#)set_mp_size.so 10.6 (Sleepycat) 10/27/98">
<!Copyright 1997, 1998 by Sleepycat Software, Inc. All rights reserved.>
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<head>
<title>Berkeley DB: DbEnv.set_mp_size</title>
<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btr
ee,hash,hashing,transaction,transactions,locking,logging,access method,access me
thods,java,C,C++">
</head>
<h1>DbEnv.set_mp_size</h1>
<hr size=1 noshade>
<tt>
<h3>
<pre>
import com.sleepycat.db.*;
<p>
public void set_mp_size(long mp_size);
</pre>
</h3>
<h1>Description</h1>
<p>
Set the suggested size of the shared memory buffer pool, i.e., the cache,
in bytes. This should be the size of the normal working data set of the
application, with some small amount of additional memory for unusual
situations. (Note, the working set is not the same as the number of
simultaneously referenced pages, and should be quite a bit larger!)
The value specified may not be less than 20K bytes.
If no value is specified, the default is 128K bytes (16 8K byte pages).
<p>
<h1>Class</h1>
<a href="../../api_java/DbEnv/class.html">DbEnv</a>
<p>
<h1>See Also</h1>
<a href="../../api_java/DbEnv/appinit.html">DbEnv.appinit</a>,
<a href="../../api_java/DbEnv/appexit.html">DbEnv.appexit</a>,
<a href="../../api_java/DbEnv/version.html">DbEnv.version</a>,
<a href="../../api_java/DbEnv/get_lg_info.html">DbEnv.get_lg_info</a>,
<a href="../../api_java/DbEnv/get_lk_info.html">DbEnv.get_lk_info</a>,
<a href="../../api_java/DbEnv/get_mp_info.html">DbEnv.get_mp_info</a>,
<a href="../../api_java/DbEnv/get_tx_info.html">DbEnv.get_tx_info</a>,
dbenv_set_data_dir,
<a href="../../api_java/DbEnv/set_errcall.html">DbEnv.set_errcall</a>,
<a href="../../api_java/DbEnv/set_error_stream.html">DbEnv.set_error_stream</a>,
<a href="../../api_java/DbEnv/set_errpfx.html">DbEnv.set_errpfx</a>,
<a href="../../api_java/DbEnv/set_lg_max.html">DbEnv.set_lg_max</a>,
<a href="../../api_java/DbEnv/set_lk_conflicts.html">DbEnv.set_lk_conflicts</a>,
<a href="../../api_java/DbEnv/set_lk_detect.html">DbEnv.set_lk_detect</a>,
<a href="../../api_java/DbEnv/set_lk_modes.html">DbEnv.set_lk_modes</a>,
<a href="../../api_java/DbEnv/set_lorder.html">DbEnv.set_lorder</a>,
<a href="../../api_java/DbEnv/set_mp_mmapsize.html">DbEnv.set_mp_mmapsize</a>,
DbEnv.set_mp_size,
<a href="../../api_java/DbEnv/set_tx_max.html">DbEnv.set_tx_max</a>,
and
<a href="../../api_java/DbEnv/set_verbose.html">DbEnv.set_verbose</a>.
</tt>
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