> On May 2, 2016, at 16:29, Nicholas Nethercote <[email protected]> wrote: > > I doubt anyone is doing large amounts of browsing in debug builds. > They are very slow :(
The LLVM project suffers from the same problem that unoptimized modern C++ is very slow. They have multiple build configurations: Debug (-O0 -g) Release (-O3 -DNDEBUG) Release+Asserts (-O3) Release+Asserts+Symbols (-O3 -g) The Release+Asserts configuration is optimized with assertions enabled, and it’s only around 20% slower than the Release build with assertions disabled. When I worked on this project, I used Release+Asserts most of the time, only falling back to Debug builds when I had to use a debugger to track down segfaults etc. It is not assertions that make unoptimized C++ really slow, it is the lack of inlining which is critical to clean up template abstraction goop. /jakob _______________________________________________ dev-tech-js-engine-internals mailing list [email protected] https://lists.mozilla.org/listinfo/dev-tech-js-engine-internals
