Report Computer Science Technology
Research, STEM

Compiling and optimising - effects of different flags on performance of C(++) applications

It is usually the fact that when a C program is compiled using the /O1, /O2 or with another optimisation setting, the performance increases. But what exactly in that flag makes all the difference? Turns out that the answer is not that obvious.

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Leaderboard
N/A, University of St Andrews
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Report 5 - Compiling and optimising Laidlaw - my writeup on the research (and other aspects about this scholarship).

And there's a video (produced as part of my scholarship requirements), which can be seen below:


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Leaderboard

N/A, University of St Andrews

Hi, I'm Leaderboard. I'm a fourth year student studying Computer Science and Mathematics, and spent my third year abroad at Purdue University (Report 6 on GitHub describes my experience there!). My research interests lie in computer architecture, operating systems and compiler optimisations, and last summer I analysed the effects of compiler optimisations on the run-time performance of different applications. A write-up on this is available at https://github.com/Leader-board/Reports/blob/master/Report%205%20-%20Compiling%20and%20optimising%20Laidlaw.pdf. This summer, I looked at the angle of multithreaded programs, which includes analysing OS schedulers and seeing their run-time impact on performance.

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