On Wednesday March 09 2016 18:00:07 Jack Howarth wrote: > Have you checked to make sure that the installed llvm packages aren't > built as the +assertions variant? The use of assertions will have a
Oh yes. With that variant active the performance hit is much worse from what I recall, so I've been making a point of it only to install release versions, without assertions active. > 3.8.0. However, port isn't smart enough to honor that change for > previous installations of llvm-3.8 so the +assertions variant will I wouldn't call the user who doesn't notice that all of a sudden a clang/llvm upgrade takes hours because built from source particularly bright either ;) > slower than the same under the fink packaging of llvm38/clang38 but > the fink packaging uses the default -O3 optimization whereas MacPorts > resets the build to use -Os instead, Frankly I'd be surprised if that leads to a 10% performance difference! > Also, keep in mind that each release of clang has been getting slower > over time as discussed in this thread... Indeed, which is why I compared comparable versions in the past; my "up to 50%" estimate is based on that. > > Is there a reason the LLVM ports build a shared libLLVM? ? R. _______________________________________________ macports-dev mailing list macports-dev@lists.macosforge.org https://lists.macosforge.org/mailman/listinfo/macports-dev
