Re: fs/eventpoll : reduce sizeof(struct epitem)

[Davide Libenzi]

On Wed, 4 Feb 2004, dada1 wrote:

> Hi Davide
> 
> On a x86_64 platform, I noticed that the size of (struct epitem) is 136 
> bytes, rounded to 192 (because of  L1_CACHE alignment of 64 bytes)
> 
> If you reorder some fields of this structure, we can reduce the size to 
> 128 bytes.
> 
> The rationale is to group nwait & fd integer (32bits) fields, instead of 
> mixing them with pointers (64 bits)

Good catch. Thx I will.



- Davide


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