From 3b4b514f58baf4c990eced9efa07112c1be90db9 Mon Sep 17 00:00:00 2001 From: Deepak Yadav Date: Sun, 14 Jun 2020 14:07:08 +0530 Subject: [PATCH] Improve documentation about sharing a cache on NFS (#604) (cherry picked from commit 231a151be84ab7998409b2ccbf4e7ee86082392a) --- doc/MANUAL.adoc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/doc/MANUAL.adoc b/doc/MANUAL.adoc index 19fc85702..58e091f23 100644 --- a/doc/MANUAL.adoc +++ b/doc/MANUAL.adoc @@ -1094,6 +1094,11 @@ 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 *temporary_dir* to a directory on the local host to avoid NFS traffic for temporary files. -- 2.47.2