maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Provide some default values for the ThinLTO Cache pruning 

This control how the cache is pruned. The cache still has to
be explicitely enabled/disabled by providing a path.

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 268393
This commit is contained in:
Mehdi Amini 2016-05-03 15:17:50 +00:00
parent 3bd56b3b43
commit b52eb8b226
2 changed files with 10 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
llvm/include/llvm-c/lto.h
View File

@ -659,6 +659,7 @@ extern lto_bool_t thinlto_codegen_set_pic_model(thinlto_code_gen_t cg,
/**
* Sets the path to a directory to use as a cache storage for incremental build.
* Setting this activates caching.
*
* \since LTO_API_VERSION=18
*/
@ -667,7 +668,7 @@ extern void thinlto_codegen_set_cache_dir(thinlto_code_gen_t cg,
/**
* Sets the cache pruning interval (in seconds). A negative value disable the
* pruning (default).
* pruning. An unspecified default value will be applied.
*
* \since LTO_API_VERSION=18
*/
@ -678,7 +679,8 @@ extern void thinlto_codegen_set_cache_pruning_interval(thinlto_code_gen_t cg,
* Sets the maximum cache size that can be persistent across build, in terms of
* percentage of the available space on the the disk. Set to 100 to indicate
* no limit, 50 to indicate that the cache size will not be left over half the
* available space. A value over 100 will be reduced to 100.
* available space. A value over 100 will be reduced to 100. An unspecified
* default value will be applied.
*
* The formula looks like:
* AvailableSpace = FreeSpace + ExistingCacheSize
@ -690,7 +692,8 @@ extern void thinlto_codegen_set_final_cache_size_relative_to_available_space(
thinlto_code_gen_t cg, unsigned percentage);
/**
* Sets the expiration (in seconds) for an entry in the cache.
* Sets the expiration (in seconds) for an entry in the cache. An unspecified
* default value will be applied.
*
* \since LTO_API_VERSION=18
*/

8
llvm/include/llvm/LTO/ThinLTOCodeGenerator.h
View File

@ -108,10 +108,10 @@ public:
*/
struct CachingOptions {
std::string Path;
int PruningInterval = -1; // seconds, -1 to disable pruning
unsigned int Expiration = 0; // seconds.
unsigned MaxPercentageOfAvailableSpace = 0; // percentage.
std::string Path; // Path to the cache, empty to disable.
int PruningInterval = 1200; // seconds, -1 to disable pruning.
unsigned int Expiration = 7 * 24 * 3600; // seconds (1w default).
unsigned MaxPercentageOfAvailableSpace = 75; // percentage.
};
/// Provide a path to a directory where to store the cached files for