r318857 - CachePruning: Allow limiting the number of files in the cache directory.

[Peter Collingbourne via cfe-commits]

Author: pcc
Date: Wed Nov 22 10:27:31 2017
New Revision: 318857

URL: http://llvm.org/viewvc/llvm-project?rev=318857&view=rev
Log:
CachePruning: Allow limiting the number of files in the cache directory.

The default limit is 1000000 but it can be configured with a cache
policy. The motivation is that some filesystems (notably ext4) have
a limit on the number of files that can be contained in a directory
(separate from the inode limit).

Differential Revision: https://reviews.llvm.org/D40327

Modified:
    cfe/trunk/docs/ThinLTO.rst

Modified: cfe/trunk/docs/ThinLTO.rst
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/ThinLTO.rst?rev=318857&r1=318856&r2=318857&view=diff
==============================================================================
--- cfe/trunk/docs/ThinLTO.rst (original)
+++ cfe/trunk/docs/ThinLTO.rst Wed Nov 22 10:27:31 2017
@@ -173,6 +173,10 @@ Possible key-value pairs are:
   ``cache_size_bytes=1g`` on its own will cause both the 1GB and default 75%
   policies to be applied unless the default ``cache_size`` is overridden.
 
+- ``cache_size_files=X``:
+  Set the maximum number of files in the cache directory. Set to 0 to indicate
+  no limit. The default is 1000000 files.
+
 - ``prune_after=Xs``, ``prune_after=Xm``, ``prune_after=Xh``: Sets the
   expiration time for cache files to ``X`` seconds (or minutes, hours
   respectively).  When a file hasn't been accessed for ``prune_after`` seconds,