llvm-project

Commit Graph

Author	SHA1	Message	Date
Dmitry Vyukov	3ab6b2347e	tsan: remove sleeps from tests Even sleep(1) lead to episodical flakes on some machines. Use an invisible by tsan barrier to enforce required execution order instead. This makes the tests deterministic and faster. llvm-svn: 226659	2015-01-21 13:50:02 +00:00
Dmitry Vyukov	70db9d4d72	tsan: allocate vector clocks using slab allocator Vector clocks is the most actively allocated object in tsan runtime. Current internal allocator is not scalable enough to handle allocation of clocks in scalable way (too small caches). This changes transforms clocks to 2-level array with 512-byte blocks. Since all blocks are of the same size, it's possible to cache them more efficiently in per-thread caches. llvm-svn: 214912	2014-08-05 18:45:02 +00:00

Author

SHA1

Message

Date

Dmitry Vyukov

3ab6b2347e

tsan: remove sleeps from tests

Even sleep(1) lead to episodical flakes on some machines.
Use an invisible by tsan barrier to enforce required execution order instead.
This makes the tests deterministic and faster.

llvm-svn: 226659

2015-01-21 13:50:02 +00:00

Dmitry Vyukov

70db9d4d72

tsan: allocate vector clocks using slab allocator

Vector clocks is the most actively allocated object in tsan runtime.
Current internal allocator is not scalable enough to handle allocation
of clocks in scalable way (too small caches). This changes transforms
clocks to 2-level array with 512-byte blocks. Since all blocks are of
the same size, it's possible to cache them more efficiently in per-thread caches.

llvm-svn: 214912

2014-08-05 18:45:02 +00:00

2 Commits