| 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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| 2 | <HTML>
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| 3 | <HEAD>
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| 4 | <META http-equiv="Content-Type" content="text/html; charset=Windows-1252">
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| 5 | <TITLE>-slp (Set Large Pages mode) switch</TITLE>
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| 6 | <LINK href="style.css" rel="stylesheet" type="text/css">
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| 7 | </HEAD>
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| 8 |
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| 9 | <BODY>
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| 10 |
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| 11 | <H1>-slp (Set Large Pages mode) switch</H1>
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| 12 |
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| 13 | <P>Sets Large Pages mode.</P>
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| 14 |
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| 15 | <H4>Syntax</H4>
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| 16 |
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| 17 | <PRE class="syntax">
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| 18 | -slp[-]
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| 19 | </PRE>
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| 20 |
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| 21 |
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| 22 | <TABLE>
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| 23 | <TR><TH width="80">Switch</TH> <TH>Description</TH></TR>
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| 24 | <TR><TD>-slp</TD> <TD>Enables Large Pages mode.</TD></TR>
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| 25 | <TR><TD>-slp-</TD> <TD>Disables Large Pages mode. This option is default for all commands.</TD></TR>
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| 26 | </TABLE>
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| 27 |
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| 28 | <P>Large Pages mode increases the speed of compression.
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| 29 | However, there is a pause at the start of compression while 7-Zip allocates the large pages in memory.
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| 30 | If 7-Zip can't allocate large pages, it allocates usual small pages.
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| 31 | Also, the Windows Task Manager doesn't show the real memory usage of the program, if 7-Zip uses large pages.
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| 32 | This feature works only on Windows 2003 / XP x64.
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| 33 | Also, it requires administrator's rights for your system.
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| 34 | The recommended size of RAM for this feature is 1 GB or more.
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| 35 | To install this feature, you must run the 7-Zip File Manager at least once,
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| 36 | close it, and then reboot the system.</P>
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| 37 | <P>Your system can hang for several seconds at compressing starting, if you use -slp mode.
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| 38 | So it's not recommended to use -slp mode to compress small data sets (less than 100 MB).</P>
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| 39 |
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| 40 |
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| 41 | <H4>Example</H4>
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| 42 |
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| 43 | <PRE class="example">
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| 44 | 7z a archive.7z -slp a.iso
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| 45 | </PRE>
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| 46 |
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| 47 | <P>compresses <SPAN class="filename">a.iso</SPAN> file with Large Pages mode switched on.</P>
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| 48 |
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| 49 | </BODY>
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| 50 | </HTML>
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