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samba-mirror/docs-xml/smbdotconf/tuning/aiowritesize.xml
Volker Lendecke 35eb4962a0 smbd: Enable async I/O by default
We've had this code in for long enough that we should enable it by default.
Modern clients do overlapping I/O, we should utilize that if possible.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2017-12-12 20:37:08 +01:00

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XML

<samba:parameter name="aio write size"
context="S"
type="bytes"
xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
<para>If this integer parameter is set to a non-zero value,
Samba will write to files asynchronously when the request size is bigger
than this value. Note that it happens only for non-chained and non-chaining
reads and when not using write cache.</para>
<para>The only reasonable values for this parameter are 0 (no async I/O) and
1 (always do async I/O).</para>
<para>Compared to <smbconfoption name="aio read size"/> this parameter has
a smaller effect, most writes should end up in the
file system cache. Writes that require space allocation might
benefit most from going asynchronous.</para>
<related>write cache size</related>
<related>aio read size</related>
</description>
<value type="default">1</value>
<value type="example">0<comment>Always do writes synchronously
</comment></value>
</samba:parameter>