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authorVolker Lendecke <vl@samba.org>2017-11-20 17:18:44 +0100
committerVolker Lendecke <vl@samba.org>2017-11-21 15:45:20 +0100
commit8212c34ae409f64615a53f9665134a3e7a04312d (patch)
treef5202d08c4c6a77df1526088f6a7b13f596bd011 /docs-xml
parentc1b4a74f272977ebdc735c040e976853c7ca800f (diff)
downloadsamba-8212c34ae409f64615a53f9665134a3e7a04312d.tar.gz
docs: Fix the "aio r/w size" smb.conf entries
Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org> Autobuild-User(master): Volker Lendecke <vl@samba.org> Autobuild-Date(master): Tue Nov 21 15:45:20 CET 2017 on sn-devel-144
Diffstat (limited to 'docs-xml')
-rw-r--r--docs-xml/smbdotconf/tuning/aioreadsize.xml15
-rw-r--r--docs-xml/smbdotconf/tuning/aiowritesize.xml18
2 files changed, 16 insertions, 17 deletions
diff --git a/docs-xml/smbdotconf/tuning/aioreadsize.xml b/docs-xml/smbdotconf/tuning/aioreadsize.xml
index 0c9cc529ed8..c6028b8f9ac 100644
--- a/docs-xml/smbdotconf/tuning/aioreadsize.xml
+++ b/docs-xml/smbdotconf/tuning/aioreadsize.xml
@@ -3,20 +3,17 @@
type="bytes"
xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
- <para>If Samba has been built with asynchronous I/O support and this
- integer parameter is set to non-zero value,
- Samba will read from file asynchronously when size of request is bigger
+ <para>If this integer parameter is set to a non-zero value,
+ Samba will read from 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>Current implementation of asynchronous I/O in Samba 3.0 does support
- only up to 10 outstanding asynchronous requests, read and write combined.</para>
-
+ <para>The only reasonable values for this parameter are 0 (no async I/O) and
+ 1 (always do async I/O).</para>
<related>write cache size</related>
<related>aio write size</related>
</description>
<value type="default">0</value>
-<value type="example">16384<comment> Use asynchronous I/O for reads bigger than 16KB
- request size</comment></value>
+<value type="example">1<comment>Always do reads asynchronously
+ </comment></value>
</samba:parameter>
diff --git a/docs-xml/smbdotconf/tuning/aiowritesize.xml b/docs-xml/smbdotconf/tuning/aiowritesize.xml
index c2ad118def0..8f42284111e 100644
--- a/docs-xml/smbdotconf/tuning/aiowritesize.xml
+++ b/docs-xml/smbdotconf/tuning/aiowritesize.xml
@@ -3,20 +3,22 @@
type="bytes"
xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
- <para>If Samba has been built with asynchronous I/O support and this
- integer parameter is set to non-zero value,
- Samba will write to file asynchronously when size of request is bigger
+ <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>Current implementation of asynchronous I/O in Samba 3.0 does support
- only up to 10 outstanding asynchronous requests, read and write combined.</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">0</value>
-<value type="example">16384<comment> Use asynchronous I/O for writes bigger than 16KB
- request size</comment></value>
+<value type="example">1<comment>Always do writes asynchronously
+ </comment></value>
</samba:parameter>