This appears to be an artifact of 1.27 vs 1.29. Alon, does it seem reasonable that linking 500MB of bc files needs 2GB of memory to link? It's certainly better than the 10x multiplier without the native optimizer. This is with -g4 on the command line in both cases.
1.29 2.2GB llvm-link 1.3GB opt Link 1m 51s BC Files 483MB 1.27 8.6GB llvm-link 4.2GB opt Link 4m 23s BC Files - 681MB On Wednesday, February 4, 2015 at 4:37:35 PM UTC-8, Alon Zakai wrote: > > I used -g on compile, -g4 on link (-g4 during compile would be the same), > and I verified I could see the generated source map at the end. > > Your app must be hitting something that i can't see on bullet, that is, > something must be different in your project. Going from 23 seconds to over > 4 minutes means something is going very wrong. Perhaps profiling the stages > that take a long time (llvm-link and opt?) could show something, just a > guess. > > - Alon > > > On Tue, Feb 3, 2015 at 5:12 PM, Alecazam <[email protected] <javascript:>> > wrote: > >> Hmm. Did you look at Bullet memory use in Activity Monitor? You might >> need a library with more C++11 in it (STL?). It's unclear from the build >> suggestions as to whether you put -g4 on both the command and link lines (I >> do both). The directions say to use -g on compile, and -g4 on the link. >> I don't think I have that specificity in my build scripts, but I wonder if >> it could be from setting in on both. I also have -O2 --llvm-opts 2 >> --llvm-lto 0 on the compile lines as well. Something is generating a >> ton of source to the link phase to accumulate 9GB. opt then sees the >> results of that with around 5GB. >> >> 4m15s link with -g4 set. High memory use reported for llvm-link and opt. >> 23s link with -g2 and -g3 set. I don't see the high memory use with >> either of these. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "emscripten-discuss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
