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DateMon, 17 Nov 2008 23:39:11 +0100
FromEric Dumazet <>
SubjectRe: [Bug #11308] tbench regression on each kernel release from 2.6.22 -&gt; 2.6.28
Ingo Molnar a écrit :
> * Eric Dumazet <dada1@cosmosbay.com> wrote:
> 
>> Ingo Molnar a écrit :

>>> it's this division:
>>>
>>>         if (doing_tso) {
>>>         [...]
>>> 			xmit_size_goal -= (xmit_size_goal % mss_now);
>>>
>>> Has no-one hit this before? Perhaps this is why switching loopback  
>>> networking to TSO had a performance impact for others?
>> Yes, I mentioned it later. [...]
> 
> i see - i just caught up with some of my inbox from today.
> 
>> [...] But apparently you dont read my mails, so I will just stop 
>> now.
> 
> Sorry, i spent my time looking at the profile output.
> 

No problem Ingo, I am very glad you take so much time to profil kernel ;)

I had too many problems with profilers on my dev machine lately :(


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