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authorGerald W. Carter <jerry@samba.org>2008-04-22 10:09:40 -0500
committerGerald W. Carter <jerry@samba.org>2008-04-23 08:47:48 -0500
commit8f8a9f01909ba29e2b781310baeeaaddc3f15f0d (patch)
tree90c6b720ad3a7bc815245c0ef28820424f89d658 /docs-xml/smbdotconf/protocol/minreceivefilesize.xml
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Moving docs tree to docs-xml to make room for generated docs in the release tarball.
(This used to be commit 9f672c26d63955f613088489c6efbdc08b5b2d14)
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+<samba:parameter name="min receivefile size"
+ type="integer"
+ context="G"
+ advanced="1" developer="1"
+ xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
+<description>
+<para>This option changes the behavior of <citerefentry><refentrytitle>smbd</refentrytitle>
+<manvolnum>8</manvolnum></citerefentry> when processing SMBwriteX calls. Any incoming
+SMBwriteX call on a non-signed SMB/CIFS connection greater than this value will not be processed in the normal way but will
+be passed to any underlying kernel recvfile or splice system call (if there is no such
+call Samba will emulate in user space). This allows zero-copy writes directly from network
+socket buffers into the filesystem buffer cache, if available. It may improve performance
+but user testing is recommended. If set to zero Samba processes SMBwriteX calls in the
+normal way. To enable POSIX large write support (SMB/CIFS writes up to 16Mb) this option must be
+nonzero. The maximum value is 128k. Values greater than 128k will be silently set to 128k.</para>
+<para>Note this option will have NO EFFECT if set on a SMB signed connection.</para>
+<para>The default is zero, which diables this option.</para>
+</description>
+
+<related>min receivefile size</related>
+<value type="default">0</value>
+</samba:parameter>