SapMM

  

This is a guest post, written by Anton Alisov, software PM and developer from Ivanovo city, Russia. I’m posting it here because I want to increase visibility of this new memory manager which featured quite well on my recent test (guest posted at Eric’s blog). I’m perfectly aware that my test was superficial and I intend to do a better test with more memory managers in the following weeks. Arnaud Buchez already posted a overview of the memory manager on his blog. And now I’ll give word to my colleague Anton. We were waiting for the robust and scalable memory manager for Delphi for the long time. Our best choice – FastMM – did not scale well under multithreaded use in memory intensive applications. Memory manager with a new design was required. We have tested many scalable managers such as TopMM, ScaleMM and other. Some of them are quite robust, but not supported currently by its developers (TopMM), some are not yet ready for production. So, we decided to develop our own memory manager to have more control over it. We believe, one doesn’t have to be big to be efficient. Meet a new player – SapMM – Simple As Possible Memory Manager. SapMM is robust, production quality memory manager, developed by software guru Alexei Nedoria from Ivanovo city, Russia. SapMM was designed for use in memory intensive multithreaded applications with the scalability in the first place. In single threaded use SapMM is only a bit (up to 40% on certain scenarios) slower than FastMM (on some scenarios SapMM is faster than FastMM even in single threaded use), but the real power of SapMM shows in multihreaded applications. SapMM scales very well and in a vast majority of scenarios is much faster than FastMM in multithreaded use. SapMM is used in production 24/7 system since June 2013. Currently SapMM was well tested only with Delphi XE and XE3, small code changes may be required in order to use it with other versions of Delphi. Currently SapMM supports only 32-bit mode and cannot be used in 64-bit applications. You can grab SapMM sources and do some tests yourself: https://code.google.com/p/sapmm/ — Published under the Creative Commons Attribution 3.0 license

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