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authorJeremy Allison <jra@samba.org>2007-11-02 21:54:22 +0000
committerGerald W. Carter <jerry@samba.org>2008-04-23 08:47:39 -0500
commit201b67c0db1930e61d4eda4897e0bc2053d875a7 (patch)
treecb60e1b261db7e784143d523dc99dd0a07b3830c
parent3f002c69856f17591a6012e85b77c1dc3dd4e5c0 (diff)
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Add "min receivefile size" docs.
Jeremy. (This used to be commit 3a8e086d240668bc5093c33506e0ed0a22557d4d)
-rw-r--r--docs/smbdotconf/protocol/minreceivefilesize.xml22
1 files changed, 22 insertions, 0 deletions
diff --git a/docs/smbdotconf/protocol/minreceivefilesize.xml b/docs/smbdotconf/protocol/minreceivefilesize.xml
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+++ b/docs/smbdotconf/protocol/minreceivefilesize.xml
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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.</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>