transaction blog

transaction blog is the website and blog of Thomas Zimmermann. Topics are picotm, transactions, and low-level software development.
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Thomas Zimmermann • Dec 15, 2017 • 10 min read

Porting picotm to Mac OS, Windows and FreeBSD

I spent the previous weeks on porting picotm from Linux to a number of other operating systems. Ports to Mac OS X, Windows and FreeBSD will be available in picotm’s next release. in this blog post we go through them one by one and look at the major points and pitfalls.  Read →

Thomas Zimmermann • Nov 24, 2017 • 14 min read

Transactional Multisets

Besides lists, queues and stacks picotm 0.8 will feature a forth transactional data structures: multisets. A multiset is a sorted set that can contain the same entry multiple times. In this blog post, we’ll go through the interface and how to use multisets from within transactions.  Read →

Thomas Zimmermann • Nov 17, 2017 • 10 min read

Transactional Queues and Stacks

In last week’s blog post, we’ve examined transactional linked lists, a new feature coming in picotm 0.8. In this blog post, we are going to talk about transactional queues and stacks. Like lists, both data structures will be available in picotm at the end of November.  Read →

Thomas Zimmermann • Nov 7, 2017 • 13 min read

Transactional Linked Lists

The November release of picotm will feature transactional lists. These lists can be accessed and modified concurrently by multiple transactions while respecting the transaction’s ACID properties. In this blog posts, we’re going to look at the lists’ features and interface.  Read →

Thomas Zimmermann • Oct 20, 2017 • 10 min read

Scaling Lock Performance

Release 0.7 of picotm will feature several major improvements of the locking code. In this blog post, we’re going to look at each change and how it impacts performance and scalability. We’ll go from exclusive locks to reader/writer locks to exclusive mode to a dedicated lock manager.  Read →