Siddhesh is one of the maintainers of the GNU C Library and contributes to various Open Source toolchain projects. At Red Hat his focus is primarily on toolchain security.
Update: Vincent Lefèvre helpfully pointed out that I had linked to the incorrect Worst Cases paper. That link is now fixed. Update 2: Dan Courcy pointed out that my equation in the "Multiplying zeroes" section had an error, which I have now fixed. Mathematical function implementations usually have to trade off between speed of computation and the accuracy of the result. This is especially true for transcendentals (i.e. the exponential and trigonometric functions), where results often have to be computed...
The malloc family of functions are critical for almost every serious application program. Its performance characteristics often have a big impact on the performance of applications. Given that the default malloc implementation needs to have consistent performance for all general cases, it makes available a number of tunables that can help developers tweak its behavior to suit their programs. About two years ago I had written an article on the Red Hat Customer Portal that described the high level design...
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