On Thu, 14 Aug 2008, Nicolas Pitre wrote:
See my other email with profile data and explanation.
Yes, zlib is high up, but it's not dominant to the point where a packfile
format change would maek a huge difference. You'd still need deltas for
trees, so even if you replaced zlib with something else, you'd still get a
large hit.
You do realize that a lot of the zlib costs are due to cache misses, not
zlib being fundamentally expensive in itself, right? Even if you made the
zlib CPU costs be zero, you still couldn't avoid the _biggest_ cost.
Linus
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