diff options
Diffstat (limited to 'doc/user/caching.in')
| -rw-r--r-- | doc/user/caching.in | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/user/caching.in b/doc/user/caching.in index 186ece6..cb8521b 100644 --- a/doc/user/caching.in +++ b/doc/user/caching.in @@ -104,6 +104,20 @@ <scons_output_command>scons -Q</scons_output_command> </scons_output> + <para> + + Note that the &CacheDir; feature still calculates + MD5 build sigantures for the shared cache file names + even if you configure &SCons; to use timestamps + to decide if files are up to date. + (See the <xref linkend="chap-depends"></xref> + chapter for information about the &Decider; function.) + Consequently, using &CacheDir; may reduce or eliminate any + potential performance improvements + from using timestamps for up-to-date decisions. + + </para> + </section> <section> |