diff options
author | Koichi Sasada <ko1@atdot.net> | 2020-01-08 16:14:01 +0900 |
---|---|---|
committer | Koichi Sasada <ko1@atdot.net> | 2020-02-22 09:58:59 +0900 |
commit | b9007b6c548f91e88fd3f2ffa23de740431fa969 (patch) | |
tree | 1746393d1c5f704e8dc7e0a458198264062273bf /common.mk | |
parent | f2286925f08406bc857f7b03ad6779a5d61443ae (diff) |
Introduce disposable call-cache.
This patch contains several ideas:
(1) Disposable inline method cache (IMC) for race-free inline method cache
* Making call-cache (CC) as a RVALUE (GC target object) and allocate new
CC on cache miss.
* This technique allows race-free access from parallel processing
elements like RCU.
(2) Introduce per-Class method cache (pCMC)
* Instead of fixed-size global method cache (GMC), pCMC allows flexible
cache size.
* Caching CCs reduces CC allocation and allow sharing CC's fast-path
between same call-info (CI) call-sites.
(3) Invalidate an inline method cache by invalidating corresponding method
entries (MEs)
* Instead of using class serials, we set "invalidated" flag for method
entry itself to represent cache invalidation.
* Compare with using class serials, the impact of method modification
(add/overwrite/delete) is small.
* Updating class serials invalidate all method caches of the class and
sub-classes.
* Proposed approach only invalidate the method cache of only one ME.
See [Feature #16614] for more details.
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/2888
Diffstat (limited to 'common.mk')
-rw-r--r-- | common.mk | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -2946,6 +2946,7 @@ mjit.$(OBJEXT): {$(VPATH)}thread.h mjit.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h mjit.$(OBJEXT): {$(VPATH)}thread_native.h mjit.$(OBJEXT): {$(VPATH)}util.h +mjit.$(OBJEXT): {$(VPATH)}vm_callinfo.h mjit.$(OBJEXT): {$(VPATH)}vm_core.h mjit.$(OBJEXT): {$(VPATH)}vm_opts.h mjit_compile.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h |