4 commits

Author	SHA1	Message	Date
Mathieu Velten	cb562d73aa	Improve lock performance when a lot of locks are waiting (#16840) ... When a lot of locks are waiting for a single lock, notifying all locks independently with `call_later` on each release is really costly and incurs some kind of async contention, where the CPU is spinning a lot for not much. The included test is taking around 30s before the change, and 0.5s after. It was found following failing tests with https://github.com/element-hq/synapse/pull/16827.	2024-03-14 13:49:54 +00:00
Erik Johnston	23740eaa3d	Correctly mention previous copyright (#16820) ... During the migration the automated script to update the copyright headers accidentally got rid of some of the existing copyright lines. Reinstate them.	2024-01-23 11:26:48 +00:00
Patrick Cloke	8e1e62c9e0	Update license headers	2023-11-21 15:29:58 -05:00
Erik Johnston	ae55cc1e6b	Add ability to wait for locks and add locks to purge history / room deletion (#15791) ... c.f. #13476	2023-07-31 10:58:03 +01:00