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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
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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 bu...
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 extremely...
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)
-