From: Deepak Yadav <yadavd@gmail.com>
Date: Sun, 14 Jun 2020 08:37:08 +0000 (+0530)
Subject: Improve documentation about sharing a cache on NFS (#604)
X-Git-Tag: v4.0~411
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=231a151be84ab7998409b2ccbf4e7ee86082392a;p=thirdparty%2Fccache.git

Improve documentation about sharing a cache on NFS (#604)
---

diff --git a/doc/MANUAL.adoc b/doc/MANUAL.adoc
index be7b0c49e..446a59530 100644
--- a/doc/MANUAL.adoc
+++ b/doc/MANUAL.adoc
@@ -1232,6 +1232,11 @@ filesystems), but keep in mind that:
 * Having the cache on NFS may slow down compilation. Make sure to do some
   benchmarking to see if it's worth it.
 * ccache hasn't been tested very thoroughly on NFS.
+* If operating system versions is different then cache direct hit will be lesser,
+  and it will lead to slower cache preprocessor hits. sloppiness config can be set to 
+  system_headers to ignore different system header and increase cache direct hits.
+  It is recommended to have same operating system version when using cache on NFS
+  to increase cache direct hits.
 
 A tip is to set <<config_temporary_dir,*temporary_dir*>> to a directory on the
 local host to avoid NFS traffic for temporary files.