[Tarantool-patches] [PATCH v3 0/4] fiber: keep reference to userdata if fiber created once
olegrok at tarantool.org
olegrok at tarantool.org
Fri Sep 3 23:49:14 MSK 2021
From: Oleg Babin <babinoleg at mail.ru>
This patch reworks approach to fiber management in Lua. Before
this patch each action that should return fiber led to new
userdata creation that was quite slow and made GC suffer. This
patch introduces new field in struct fiber to store a reference to
userdata that was created once for a fiber. It allows speedup
operations as fiber.self() and fiber.id().
Simple benchmark shows that access to fiber storage is faster in
two times, fiber.find() - 2-3 times and fiber.new/create functions
don't have any changes.
Initially changes were inspired by #6210 [1] but current patchset
doesn't introduce anything new just improves performance of
existing functions.
Some results are available also in related github PR [2].
[1] https://github.com/tarantool/tarantool/issues/6210
[2] https://github.com/tarantool/tarantool/pull/6280
Changes in v3:
- Review fixes by Igor
- New patch to make public LUA_NOREF value
Changes in v2:
- Review fixes by Vlad and Igor
- The patch patch that introduced mempool usage is discarded
Oleg Babin (4):
fiber: rename ref to storage_ref
fiber: pass struct fiber into lbox_pushfiber instead of id
lua/utils: make LUA_NOREF value public
fiber: keep reference to userdata if fiber created once
src/lib/core/fiber.c | 5 ++
src/lib/core/fiber.h | 7 +-
src/lua/fiber.c | 124 ++++++++++++------------------------
src/lua/utils.c | 1 +
test/unit/core_test_utils.c | 2 +
5 files changed, 53 insertions(+), 86 deletions(-)
--
2.32.0
More information about the Tarantool-patches
mailing list