diff options
Diffstat (limited to 'docs-xml/smbdotconf/tuning/writecachesize.xml')
| -rw-r--r-- | docs-xml/smbdotconf/tuning/writecachesize.xml | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/docs-xml/smbdotconf/tuning/writecachesize.xml b/docs-xml/smbdotconf/tuning/writecachesize.xml new file mode 100644 index 0000000000..12965b4048 --- /dev/null +++ b/docs-xml/smbdotconf/tuning/writecachesize.xml @@ -0,0 +1,28 @@ +<samba:parameter name="write cache size" + context="S" + type="integer" + xmlns:samba="http://www.samba.org/samba/DTD/samba-doc"> +<description> + <para>If this integer parameter is set to non-zero value, + Samba will create an in-memory cache for each oplocked file + (it does <emphasis>not</emphasis> do this for + non-oplocked files). All writes that the client does not request + to be flushed directly to disk will be stored in this cache if possible. + The cache is flushed onto disk when a write comes in whose offset + would not fit into the cache or when the file is closed by the client. + Reads for the file are also served from this cache if the data is stored + within it.</para> + + <para>This cache allows Samba to batch client writes into a more + efficient write size for RAID disks (i.e. writes may be tuned to + be the RAID stripe size) and can improve performance on systems + where the disk subsystem is a bottleneck but there is free + memory for userspace programs.</para> + + <para>The integer parameter specifies the size of this cache + (per oplocked file) in bytes.</para> +</description> + +<value type="default">0</value> +<value type="example">262144<comment> for a 256k cache size per file</comment></value> +</samba:parameter> |