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From: Nicholas N. <n.n...@gm...> - 2009-08-25 03:18:51
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Hi, Snow Leopard (Mac OS 10.6) is coming out this Friday. So our crappy 64-bit Mac support is about to get a lot more use, because almost all built-in apps will be 64-bit and I think 64-bit will even be the default for compilation. The main problem with our 64-bit support is that it's *really* slow to start-up, eg. Hello World takes about 4 seconds on my MacBook Pro. This is because the Valgrind-on-Darwin start-up sequence involves mmaping large chunks of the address space, and on 64-bit this is obviously a bigger task than on 32-bit. (Valgrind-on-Linux doesn't doe these mmaps, which is why there is no corresponding slow-down on 64-bit LInux.) Well, at least we had one whole week where Valgrind provided good support on Mac... N |