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<TITLE>-slp (Set Large Pages mode) switch</TITLE>
<LINK href="style.css" rel="stylesheet" type="text/css">
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<H1>-slp (Set Large Pages mode) switch</H1>
<P>Sets Large Pages mode.</P>
<H4>Syntax</H4>
<PRE class="syntax">
-slp[-]
</PRE>
<TABLE>
<TR><TH width="80">Switch</TH> <TH>Description</TH></TR>
<TR><TD>-slp</TD> <TD>Enables Large Pages mode.</TD></TR>
<TR><TD>-slp-</TD> <TD>Disables Large Pages mode. This option is default for all commands.</TD></TR>
</TABLE>
<P>Large Pages mode increases the speed of compression.
However, there is a pause at the start of compression while 7-Zip allocates the large pages in memory.
If 7-Zip can't allocate large pages, it allocates usual small pages.
Also, the Windows Task Manager doesn't show the real memory usage of the program, if 7-Zip uses large pages.
This feature works only on Windows 2003 / XP x64.
Also, it requires administrator's rights for your system.
The recommended size of RAM for this feature is 1 GB or more.
To install this feature, you must run the 7-Zip File Manager at least once,
close it, and then reboot the system.</P>
<P>Your system can hang for several seconds at compressing starting, if you use -slp mode.
So it's not recommended to use -slp mode to compress small data sets (less than 100 MB).</P>
<H4>Example</H4>
<PRE class="example">
7z a archive.7z -slp a.iso
</PRE>
<P>compresses <SPAN class="filename">a.iso</SPAN> file with Large Pages mode switched on.</P>
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