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2013 Jun 27
2
[LLVMdev] does clang and llvm take more time to compile c code
Hello, all When I compile mpeg2enc of Mediabench, it seems clang and llvm take longer time than gcc. I meausre the time as follow: gcc -O3 8.190s clang -O3 20.253s will this means clang and llvm are slower than gcc in compiling c code. Eric -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130627/05d72027/attac...
2013 Jun 28
2
[LLVMdev] does clang and llvm take more time to compile c code
...n 27, 2013 at 7:49 PM, Benjamin Kramer <benny.kra at gmail.com>wrote: > > On 27.06.2013, at 13:40, Eric Lu <eirc.lew at gmail.com> wrote: > > > Hello, all > > > > When I compile mpeg2enc of Mediabench, it seems clang and llvm take > longer time than gcc. I meausre the time as follow: > > > > gcc -O3 8.190s > > clang -O3 20.253s > > > > will this means clang and llvm are slower than gcc in compiling c code. > > Possibly. The timings are useless without information about the versions > of GCC and clang used and the b...
2013 Jun 27
0
[LLVMdev] does clang and llvm take more time to compile c code
On 27.06.2013, at 13:40, Eric Lu <eirc.lew at gmail.com> wrote: > Hello, all > > When I compile mpeg2enc of Mediabench, it seems clang and llvm take longer time than gcc. I meausre the time as follow: > > gcc -O3 8.190s > clang -O3 20.253s > > will this means clang and llvm are slower than gcc in compiling c code. Possibly. The timings are useless without information about the versions of GCC and clang used and the build configuration (clang is extremel...
2013 Jun 28
0
[LLVMdev] does clang and llvm take more time to compile c code
...y.kra at gmail.com> > wrote: >> >> >> On 27.06.2013, at 13:40, Eric Lu <eirc.lew at gmail.com> wrote: >> >> > Hello, all >> > >> > When I compile mpeg2enc of Mediabench, it seems clang and llvm take >> > longer time than gcc. I meausre the time as follow: >> > >> > gcc -O3 8.190s >> > clang -O3 20.253s >> > >> > will this means clang and llvm are slower than gcc in compiling c code. >> >> Possibly. The timings are useless without information about the versions >>...
2013 Jun 29
2
[LLVMdev] does clang and llvm take more time to compile c code
...>> > >> > >> On 27.06.2013, at 13:40, Eric Lu <eirc.lew at gmail.com> wrote: > >> > >> > Hello, all > >> > > >> > When I compile mpeg2enc of Mediabench, it seems clang and llvm take > >> > longer time than gcc. I meausre the time as follow: > >> > > >> > gcc -O3 8.190s > >> > clang -O3 20.253s > >> > > >> > will this means clang and llvm are slower than gcc in compiling c > code. > >> > >> Possibly. The timings are useless without...
2007 May 30
30
[VTD][patch 0/5] HVM device assignment using vt-d
The following 5 patches are re-submissions of the vt-d patch. This set of patches has been tested against cs# 15080 and is now much more mature and tested against more environments than the original patch. Specifically, we have successfully tested the patch with following environements: - 32/64-bit Linux HVM guest - 32-bit Windows XP/Vista (64-bit should work but did not test) -