bug-hurd
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [bug #18502] Suboptimal cache configuration for IA-32 processors


From: Kenneth Østby
Subject: Re: [bug #18502] Suboptimal cache configuration for IA-32 processors
Date: Fri, 15 Dec 2006 16:12:25 +0100



On 12/15/06, Barry deFreese <address@hidden> wrote:
Samuel Thibault wrote:
> Barry deFreese, le Thu 14 Dec 2006 21:57:49 -0500, a écrit :
>
>> Samuel Thibault wrote:
>>
>>> Barry deFreese, le Thu 14 Dec 2006 02:03:10 +0000, a écrit :
>>>
>>>
>>>> That is just from running times on a little C program that counts to
>>>> 1000000000, so it's obviously not scientific.
>>>>
>>>>
>>> Try compiling something, gnumach for instance ;)

Are counting to 1000000000 and compiling gnumach both very cache intensive applications? I can't see how the 1000000 example is, and GCC is mostly sensitive to the cache size, not bandwidth-bound. Try something where the working set is greater than the cache size and you might see some results.

Kenneth Østby
 



reply via email to

[Prev in Thread] Current Thread [Next in Thread]