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<a href="#pub-methods">Public Member Functions</a> &#124;
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<p>Defines page memory policy configuration. See <a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_configuration.html#ad489984c0b08b12456f51d8c19464d5c" title="Gets or sets the memory policies. ">MemoryConfiguration.MemoryPolicies</a>.
<a href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#details">More...</a></p>
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Public Member Functions</h2></td></tr>
<tr class="memitem:a00162da014d54bd8e671ef3c8037774e"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a00162da014d54bd8e671ef3c8037774e">MemoryPolicyConfiguration</a> ()</td></tr>
<tr class="memdesc:a00162da014d54bd8e671ef3c8037774e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initializes a new instance of the <a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html" title="Defines page memory policy configuration. See MemoryConfiguration.MemoryPolicies. ...">MemoryPolicyConfiguration</a> class. <a href="#a00162da014d54bd8e671ef3c8037774e">More...</a><br /></td></tr>
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Public Attributes</h2></td></tr>
<tr class="memitem:aa901e328fe38ec49b22e0f0e97d208cd"><td class="memItemLeft" align="right" valign="top">const double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#aa901e328fe38ec49b22e0f0e97d208cd">DefaultEvictionThreshold</a> = 0.9</td></tr>
<tr class="memdesc:aa901e328fe38ec49b22e0f0e97d208cd"><td class="mdescLeft">&#160;</td><td class="mdescRight">The default eviction threshold. <a href="#aa901e328fe38ec49b22e0f0e97d208cd">More...</a><br /></td></tr>
<tr class="separator:aa901e328fe38ec49b22e0f0e97d208cd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa80db2aca607000cb64f772daa8c7cf0"><td class="memItemLeft" align="right" valign="top">const int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#aa80db2aca607000cb64f772daa8c7cf0">DefaultEmptyPagesPoolSize</a> = 100</td></tr>
<tr class="memdesc:aa80db2aca607000cb64f772daa8c7cf0"><td class="mdescLeft">&#160;</td><td class="mdescRight">The default empty pages pool size. <a href="#aa80db2aca607000cb64f772daa8c7cf0">More...</a><br /></td></tr>
<tr class="separator:aa80db2aca607000cb64f772daa8c7cf0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a048bd4f498a6d3eba1b1c9fa806c96d3"><td class="memItemLeft" align="right" valign="top">const long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a048bd4f498a6d3eba1b1c9fa806c96d3">DefaultInitialSize</a> = 256 * 1024 * 1024</td></tr>
<tr class="memdesc:a048bd4f498a6d3eba1b1c9fa806c96d3"><td class="mdescLeft">&#160;</td><td class="mdescRight">The default initial size. <a href="#a048bd4f498a6d3eba1b1c9fa806c96d3">More...</a><br /></td></tr>
<tr class="separator:a048bd4f498a6d3eba1b1c9fa806c96d3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a98fdbfb0d4ebbe22397ccba3d76957ef"><td class="memItemLeft" align="right" valign="top">const int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a98fdbfb0d4ebbe22397ccba3d76957ef">DefaultSubIntervals</a> = 5</td></tr>
<tr class="memdesc:a98fdbfb0d4ebbe22397ccba3d76957ef"><td class="mdescLeft">&#160;</td><td class="mdescRight">The default sub intervals. <a href="#a98fdbfb0d4ebbe22397ccba3d76957ef">More...</a><br /></td></tr>
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Static Public Attributes</h2></td></tr>
<tr class="memitem:a2274da0aae73ed8fb9f1887a74eb8f05"><td class="memItemLeft" align="right" valign="top">static readonly long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a2274da0aae73ed8fb9f1887a74eb8f05">DefaultMaxSize</a> = (long) ((long) NativeMethods.GetTotalPhysicalMemory() * 0.2)</td></tr>
<tr class="memdesc:a2274da0aae73ed8fb9f1887a74eb8f05"><td class="mdescLeft">&#160;</td><td class="mdescRight">The default maximum size, equals to 20% of total RAM. <a href="#a2274da0aae73ed8fb9f1887a74eb8f05">More...</a><br /></td></tr>
<tr class="separator:a2274da0aae73ed8fb9f1887a74eb8f05"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa2efb4010b4ce9d2b3786d7ffcb456f5"><td class="memItemLeft" align="right" valign="top">static readonly TimeSpan&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#aa2efb4010b4ce9d2b3786d7ffcb456f5">DefaultRateTimeInterval</a> = TimeSpan.FromSeconds(60)</td></tr>
<tr class="memdesc:aa2efb4010b4ce9d2b3786d7ffcb456f5"><td class="mdescLeft">&#160;</td><td class="mdescRight">The default rate time interval. <a href="#aa2efb4010b4ce9d2b3786d7ffcb456f5">More...</a><br /></td></tr>
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Properties</h2></td></tr>
<tr class="memitem:ae87832b793f5e990f95cc99813b5a7af"><td class="memItemLeft" align="right" valign="top">string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#ae87832b793f5e990f95cc99813b5a7af">Name</a><code> [get, set]</code></td></tr>
<tr class="memdesc:ae87832b793f5e990f95cc99813b5a7af"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the memory policy name. Defaults to <a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_configuration.html#a75f42414534086b1be732cd384e0e570" title="The default value for DefaultMemoryPolicyName. ">MemoryConfiguration.DefaultDefaultMemoryPolicyName</a>. <a href="#ae87832b793f5e990f95cc99813b5a7af">More...</a><br /></td></tr>
<tr class="separator:ae87832b793f5e990f95cc99813b5a7af"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a62dafe26fe701bf77c8e72d7879a7218"><td class="memItemLeft" align="right" valign="top">long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a62dafe26fe701bf77c8e72d7879a7218">InitialSize</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a62dafe26fe701bf77c8e72d7879a7218"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets initial memory region size defined by this memory policy. When the used memory size exceeds this value, new chunks of memory will be allocated. <a href="#a62dafe26fe701bf77c8e72d7879a7218">More...</a><br /></td></tr>
<tr class="separator:a62dafe26fe701bf77c8e72d7879a7218"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab70d8419bd82bb52ed1ea166e0cbd5fb"><td class="memItemLeft" align="right" valign="top">long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#ab70d8419bd82bb52ed1ea166e0cbd5fb">MaxSize</a><code> [get, set]</code></td></tr>
<tr class="memdesc:ab70d8419bd82bb52ed1ea166e0cbd5fb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sets maximum memory region size defined by this memory policy. The total size should not be less than 10 MB due to internal data structures overhead. <a href="#ab70d8419bd82bb52ed1ea166e0cbd5fb">More...</a><br /></td></tr>
<tr class="separator:ab70d8419bd82bb52ed1ea166e0cbd5fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0919d85e260241e1e136af08475cd06f"><td class="memItemLeft" align="right" valign="top">string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a0919d85e260241e1e136af08475cd06f">SwapFilePath</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a0919d85e260241e1e136af08475cd06f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the the path to the memory-mapped file the memory region defined by this memory policy will be mapped to. Having the path set, allows relying on swapping capabilities of an underlying operating system for the memory region. <a href="#a0919d85e260241e1e136af08475cd06f">More...</a><br /></td></tr>
<tr class="separator:a0919d85e260241e1e136af08475cd06f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4d522392615a33ef6fac7319543344a7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespace_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration.html#a5eb109859cd0dce6d1fb72a2c9b980fc">DataPageEvictionMode</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a4d522392615a33ef6fac7319543344a7">PageEvictionMode</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a4d522392615a33ef6fac7319543344a7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the page eviction mode. If DataPageEvictionMode.Disabled is used (default) then an out of memory exception will be thrown if the memory region usage, defined by this memory policy, goes beyond <a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#ab70d8419bd82bb52ed1ea166e0cbd5fb" title="Sets maximum memory region size defined by this memory policy. The total size should not be less than...">MaxSize</a>. <a href="#a4d522392615a33ef6fac7319543344a7">More...</a><br /></td></tr>
<tr class="separator:a4d522392615a33ef6fac7319543344a7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a755b8963474f421ae84b878ae831ed63"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a755b8963474f421ae84b878ae831ed63">EvictionThreshold</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a755b8963474f421ae84b878ae831ed63"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the threshold for memory pages eviction initiation. For instance, if the threshold is 0.9 it means that the page memory will start the eviction only after 90% of the memory region (defined by this policy) is occupied. <a href="#a755b8963474f421ae84b878ae831ed63">More...</a><br /></td></tr>
<tr class="separator:a755b8963474f421ae84b878ae831ed63"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a46fcda50b5340476eedda50010a2bf2c"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a46fcda50b5340476eedda50010a2bf2c">EmptyPagesPoolSize</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a46fcda50b5340476eedda50010a2bf2c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the minimal number of empty pages to be present in reuse lists for this memory policy. This parameter ensures that Ignite will be able to successfully evict old data entries when the size of (key, value) pair is slightly larger than page size / 2. Increase this parameter if cache can contain very big entries (total size of pages in this pool should be enough to contain largest cache entry). <a href="#a46fcda50b5340476eedda50010a2bf2c">More...</a><br /></td></tr>
<tr class="separator:a46fcda50b5340476eedda50010a2bf2c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad718659c7c80e7488431391c1744b832"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#ad718659c7c80e7488431391c1744b832">MetricsEnabled</a><code> [get, set]</code></td></tr>
<tr class="memdesc:ad718659c7c80e7488431391c1744b832"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets a value indicating whether memory metrics should be enabled. <a href="#ad718659c7c80e7488431391c1744b832">More...</a><br /></td></tr>
<tr class="separator:ad718659c7c80e7488431391c1744b832"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acfeefe4fbc9c76e8da9cc4ed93cdf610"><td class="memItemLeft" align="right" valign="top">TimeSpan&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#acfeefe4fbc9c76e8da9cc4ed93cdf610">RateTimeInterval</a><code> [get, set]</code></td></tr>
<tr class="memdesc:acfeefe4fbc9c76e8da9cc4ed93cdf610"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the rate time interval for <a class="el" href="interface_apache_1_1_ignite_1_1_core_1_1_cache_1_1_i_memory_metrics.html#a5ea0e00785de64fa6cadbc08d0bd602f" title="Gets the allocation rate, in pages per second. ">IMemoryMetrics.AllocationRate</a> and <a class="el" href="interface_apache_1_1_ignite_1_1_core_1_1_cache_1_1_i_memory_metrics.html#a8991597c51a6ee733e09012a5a24077d" title="Gets the eviction rate, in pages per second. ">IMemoryMetrics.EvictionRate</a> monitoring purposes. <a href="#acfeefe4fbc9c76e8da9cc4ed93cdf610">More...</a><br /></td></tr>
<tr class="separator:acfeefe4fbc9c76e8da9cc4ed93cdf610"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a00e04356db7bd8f601cf79b0354dea0e"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#a00e04356db7bd8f601cf79b0354dea0e">SubIntervals</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a00e04356db7bd8f601cf79b0354dea0e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the number of sub intervals to split <a class="el" href="class_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration_1_1_memory_policy_configuration.html#acfeefe4fbc9c76e8da9cc4ed93cdf610" title="Gets or sets the rate time interval for IMemoryMetrics.AllocationRate and IMemoryMetrics.EvictionRate monitoring purposes. ">RateTimeInterval</a> into to calculate <a class="el" href="interface_apache_1_1_ignite_1_1_core_1_1_cache_1_1_i_memory_metrics.html#a5ea0e00785de64fa6cadbc08d0bd602f" title="Gets the allocation rate, in pages per second. ">IMemoryMetrics.AllocationRate</a> and <a class="el" href="interface_apache_1_1_ignite_1_1_core_1_1_cache_1_1_i_memory_metrics.html#a8991597c51a6ee733e09012a5a24077d" title="Gets the eviction rate, in pages per second. ">IMemoryMetrics.EvictionRate</a>. <a href="#a00e04356db7bd8f601cf79b0354dea0e">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<td class="memname">Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.MemoryPolicyConfiguration </td>
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<td class="memname">const int Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultEmptyPagesPoolSize = 100</td>
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<td class="memname">const double Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultEvictionThreshold = 0.9</td>
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<td class="memname">const long Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultInitialSize = 256 * 1024 * 1024</td>
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<td class="memname">readonly long Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultMaxSize = (long) ((long) NativeMethods.GetTotalPhysicalMemory() * 0.2)</td>
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<td class="memname">readonly TimeSpan Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultRateTimeInterval = TimeSpan.FromSeconds(60)</td>
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<td class="memname">const int Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.DefaultSubIntervals = 5</td>
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<h2 class="groupheader">Property Documentation</h2>
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<td class="memname">int Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.EmptyPagesPoolSize</td>
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<td class="memname">double Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.EvictionThreshold</td>
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<td class="memname">long Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.InitialSize</td>
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<td class="memname">long Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.MaxSize</td>
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<td class="memname">bool Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.MetricsEnabled</td>
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<p>Metrics can be retrieved with <a class="el" href="interface_apache_1_1_ignite_1_1_core_1_1_i_ignite.html#a76eb0636493b1d096c27b58621c0f6d2" title="Gets a collection of memory metrics, one for each MemoryConfiguration.MemoryPolicies. ">IIgnite.GetMemoryMetrics()</a> method. </p>
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<td class="memname">string Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.Name</td>
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<td class="memname"><a class="el" href="namespace_apache_1_1_ignite_1_1_core_1_1_cache_1_1_configuration.html#a5eb109859cd0dce6d1fb72a2c9b980fc">DataPageEvictionMode</a> Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.PageEvictionMode</td>
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<td class="memname">TimeSpan Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.RateTimeInterval</td>
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<p>For instance, after setting the interval to 60 seconds, subsequent calls to <a class="el" href="interface_apache_1_1_ignite_1_1_core_1_1_cache_1_1_i_memory_metrics.html#a5ea0e00785de64fa6cadbc08d0bd602f" title="Gets the allocation rate, in pages per second. ">IMemoryMetrics.AllocationRate</a> will return average allocation rate (pages per second) for the last minute. </p>
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<td class="memname">int Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.SubIntervals</td>
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<p>Bigger value results in more accurate metrics. </p>
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<td class="memname">string Apache.Ignite.Core.Cache.Configuration.MemoryPolicyConfiguration.SwapFilePath</td>
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<p>Null for no swap. </p>
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