mORMot Open Source

emk

Member

Registered: 2013-10-24

Posts: 96

Critical section vs Slim Reader/Writer lock

https://www.delphitools.info/2013/12/18 … ocks-rock/
http://nasutechtips.blogspot.ro/2010/11 … locks.html

Seems that SWR exclusive lock is twice as fast as CriticalSection. Why not use it in mORMot "if Windows >= Vista"? since the more threads are involved, the bigger gains.

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,240

Website

Re: Critical section vs Slim Reader/Writer lock

Because SRW are not re-entrant, and in practice the gain is not worth it since our TSynLock granularity is usually either with no lock, or with some milliseconds time.