On 2022-02-22 16:59, Patrick McGehearty wrote:
I studied Dhrystone about 30 years ago and found it
had a number of flaws back then. For example, most of
the loops in the code are only executed 1-3 times, which
minimizes the value of hoisting values out of inner loops.
Read the Dhrystone
I studied Dhrystone about 30 years ago and found it
had a number of flaws back then. For example, most of
the loops in the code are only executed 1-3 times, which
minimizes the value of hoisting values out of inner loops.
Read the Dhrystone wikipedia article for more information.
Going back to
> On Feb 22, 2022, at 4:26 PM, Gary Oblock via Gcc wrote:
>
> Andras,
>
> The whole point of benchmarks is to judge a processor's performance.
> That being said, just crippling GCC is not reasonable because
> processors must be judged in the appropriate context and that
> includes the
benchmark it using the applications you built it
for.
Gary
From: Andras Tantos
Sent: Monday, February 21, 2022 9:22 PM
To: Gary Oblock ; gcc@gcc.gnu.org
Subject: Re: Benchmark recommendations needed
[EXTERNAL EMAIL NOTICE: This email originated from an external
Dhrystone is (and probably always was) a bogus benchmark. It's a
well-known truism that MIPS stands for Meaningless Indication of
Processor Speed, and dhrystone scores are equally meaningless.
Dhrystone fell out of common usage over 20 years ago.
It's not GCC that is being peculiar, it's
That's true, I did notice GCC being rather ... peculiar about
drhystone. Is there a way to make it less clever about the benchmark?
Or is there some alteration to the benchmark I can make to not trigger
the special behavior in GCC?
Andras
On Mon, 2022-02-21 at 03:19 +, Gary Oblock via Gcc
Trying to use the dhrystone isn't going to be very useful. It has many
downsides not the least is that gcc's optimizer can run rings about it.
Gary
From: Gcc on behalf of
gcc-requ...@gcc.gnu.org
Sent: Tuesday, February 15, 2022 6:25 AM
To: gcc@gcc.gnu.org
Thanks H-P! I'll certainly check it out.
Andras
February 17, 2022 9:15 AM, "Hans-Peter Nilsson" wrote:
> On Mon, 14 Feb 2022, Andras Tantos wrote:
>
>> Hello all!
>>
>> I'm working on porting GCC to a new processor architecture. I think
>> I've finally got to a fairly stable stage, so the
On Mon, 14 Feb 2022, Andras Tantos wrote:
> Hello all!
>
> I'm working on porting GCC to a new processor architecture. I think
> I've finally got to a fairly stable stage, so the next logical step
> would be to test and optimize. For that, I would need some benchmarks,
> and this is where I'm
On Tue, Feb 15, 2022 at 3:25 PM Andras Tantos wrote:
>
> Hello all!
>
> I'm working on porting GCC to a new processor architecture. I think
> I've finally got to a fairly stable stage, so the next logical step
> would be to test and optimize. For that, I would need some benchmarks,
> and this is
Hello all!
I'm working on porting GCC to a new processor architecture. I think
I've finally got to a fairly stable stage, so the next logical step
would be to test and optimize. For that, I would need some benchmarks,
and this is where I'm seeking your help.
This being a hobby project, I can't
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