tarantool / tarantool / 12200

push

travis-ci

memtx: free tuples asynchronously when primary index is dropped

When a memtx space is dropped or truncated, we have to unreference all
tuples stored in it. Currently, we do it synchronously, thus blocking
the tx thread. If a space is big, tx thread may remain blocked for
several seconds, which is unacceptable. This patch makes drop/truncate
hand actual work to a background fiber.

Before this patch, drop of a space with 10M 64-byte records took more
than 0.5 seconds. After this patch, it takes less than 1 millisecond.

Closes #3408

72 of 72 new or added lines in 6 files covered. (100.0%)

38771 of 47503 relevant lines covered (81.62%)

900085.99 hits per line