Intel Transactional Synchronization Extensions (Intel TSX)

Analyzing Intel® SDE's TSX-related log data for capacity aborts

Starting with version 7.12.0, Intel® SDE has Intel® TSX-related instruction and memory access logging features which can be useful for debugging Intel® TSX's capacity aborts. With the log data from the Intel SDE you can diagnose cache set population to determine if there is non-uniform cache set usage causing capacity overflows. A refined log data may be used to further diagnose the source of the aborts.

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  • Intel Transactional Synchronization Extensions (Intel TSX)
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    Transactional Memory Support: the speculative_spin_rw_mutex (Community Preview Feature)

    In a previous post I discussed the Intel® Transactional Synchronization Extensions (Intel® TSX) technology released in the new generation of processors.  I described the Intel® Threading Building Blocks (Intel® TBB) implementation of the HLE interface (speculative_spin_mutex).  Now we can talk about the implementation of speculative_spin_rtw_mutex, a Preview Feature of TBB 4.2 Update 2.

    Profiling Intel® Transactional Synchronization Extensions with Intel® VTune™ Amplifier XE

    Intel® Transactional Synchronization Extensions (Intel® TSX) provides hardware transactional memory support. It exposes a speculative execution mode to the programmer to improve locking performance. There are many publications about Intel TSX and this article is not focused on explaining the concept. You can refer to the most comprehensive list of TSX-related technical resources in the Roman Dementiev blog.

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  • Linux*
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  • Microsoft Windows* 8.x
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  • Intel® VTune™ Amplifier
  • Intel Transactional Synchronization Extensions (Intel TSX)
  • TSX
  • Intel VTune Amplifier
  • Intel® Transactional Synchronization Extensions
  • Outils de développement
  • Optimisation
  • Informatique parallèle
  • Parallélisation
  • Transactional memory support: the speculative_spin_mutex

    Intel recently released the 4th Generation Intel® Core™ processors, which have Intel® Transactional Synchronization Extensions (Intel® TSX) enabled.  Intel TSX can improve the performance of applications that use lock-based synchronization to protect data structure updates.  This feature allows multiple non-conflicting lock-protected changes to data to occur in parallel.

    Fun with Intel® Transactional Synchronization Extensions

    By now, many of you have heard of Intel® Transactional Synchronization Extensions (Intel® TSX). If you have not, I encourage you to check out this page (http://www.intel.com/software/tsx) before you read further. In a nutshell, Intel TSX provides transactional memory support in hardware, making the lives of developers who need to write synchronization codes for concurrent and parallel applications easier.

    Exploring Intel® Transactional Synchronization Extensions with Intel® Software Development Emulator

    Intel® Transactional Synchronization Extensions (Intel® TSX) is perhaps one of the most non-trivial extensions of instruction set architecture introduced in the 4th generation Intel® Core™ microarchitecture code name Haswell. Intel® TSX implements hardware support for a best-effort “transactional memory”, which is a simpler mechanism for scalable thread synchronization as opposed to inherently complex fine-grained locking or lock-free algorithms. The extensions have two interfaces: Hardware Lock Elision (HLE) and Restricted Transactional Memory (RTM). 

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