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Friday, September 29 • 9:00am - 10:00am
C++ Exceptions and Stack Unwinding

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Exceptions are often described as 'slow', and the standard advice is to use them only in exceptional circumstances. In this talk, we'll find out how slow exceptions really are by exploring the Itanium exception handling model.

We'll dive into several implementations (libunwind, gcc, llvm-libunwind), and learn about everything that happens between throw() and catch(). We will discover the answers to questions such as why throwing an exception takes a global lock (and how to avoid it), how caching can speed up the performance of exceptions, and how to get better stack traces.

Speakers
avatar for David Watson

David Watson

Engineer, Facebook
Dave Watson is an infrastructure engineer at Facebook. He has been focused on improving the application server stack, including improvements in RPC, load balancing, memory management, and asynchronous programming. He has contributed to many of Facebook's core services and OSS pro... Read More →


Friday September 29, 2017 9:00am - 10:00am
Berry Hall Meydenbauer Center

Attendees (237)