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wswartzendruber
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PostPosted: Thu May 20, 2010 3:14 pm    Post subject: Perhaps CFLAGS Will Matter Once Again Reply with quote

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Intel Core 2, Core i7 Optimizations For GCC 4.6

Posted by Michael Larabel on May 20, 2010

CodeSourcery, a company that works on GCC for various companies like with Texas Instruments for bringing the GNU Toolchain to new CPUs and also offers their own software development environment, has shared their intentions to provide a new set of GCC optimizations for Intel's Core 2 and Core i7 processors.

Intel is paying CodeSourcery to do performance optimization work for them in GCC and right now they are tackling unaligned vector instructions for the Core 2 and Core i7 families.

CodeSourcery expects to commit their Core optimizations to GCC by the time GCC 4.6 Stage 1 is complete. This will be great news for GCC 4.6 if these optimizations are significant, but considering that GCC 4.5 was just released, we are probably about a year out from having the official GCC 4.6.0 release.

We can't wait to see the performance impact on Intel's newest CPUs once this work is complete and we'll certainly be providing benchmarks. In fact, the Phoronix Test Suite was already brought up in their discussion so we should see some nice improvements in our tests.

The CodeSourcery mailing list message announcing this work that's funded by Intel can be read on the GCC mailing list.

If you are interested in seeing how Intel's newer CPUs perform right now under Linux we have our test results from the Intel Core i3 530, Intel Core i5 750, Intel Core i7 870, and Intel Core i7 920.

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Voltago
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PostPosted: Thu May 20, 2010 3:18 pm    Post subject: Reply with quote

Behold, we shall see the renaissance of ricing! Yay! emerge -e world ftw!
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wswartzendruber
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PostPosted: Thu May 20, 2010 3:19 pm    Post subject: Reply with quote

Voltago wrote:
Behold, we shall see the renaissance of ricing! Yay! emerge -e world ftw!

They should pour their money into LLVM and CLANG. That way, we can rebuild world five times as fast and get five times the boner.
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Shining Arcanine
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PostPosted: Thu May 20, 2010 3:22 pm    Post subject: Reply with quote

Why is Intel not doing this in house?
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wswartzendruber
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PostPosted: Thu May 20, 2010 3:23 pm    Post subject: Reply with quote

Shining Arcanine wrote:
Why is Intel not doing this in house?

Good question. They are, after all, their processors.
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Shining Arcanine
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PostPosted: Thu May 20, 2010 3:23 pm    Post subject: Reply with quote

wswartzendruber wrote:
Shining Arcanine wrote:
Why is Intel not doing this in house?

Good question. It is, after all, their processors.


Could it be that they do not want their employees to see GPLv3 code?
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wswartzendruber
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PostPosted: Thu May 20, 2010 3:24 pm    Post subject: Reply with quote

Shining Arcanine wrote:
wswartzendruber wrote:
Shining Arcanine wrote:
Why is Intel not doing this in house?

Good question. It is, after all, their processors.


Could it be that they do not want their employees to see GPLv3 code?

Plausible.
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