Re: will __attribute__((aligned(CACHE_LINE_SIZE))) break struct alignment

[Yubin Ruan <ablacktshirt@xxxxxxxxx>]

Thanks,

2017-11-07 0:41 GMT+08:00 Jonathan Wakely <jwakely.gcc@xxxxxxxxx>:
> On 6 November 2017 at 15:46, Yubin Ruan wrote:
>> Thanks Florian,
>>
>> 2017年11月6日星期一，Florian Weimer <fweimer@xxxxxxxxxx> 写道：
>>
>>> On 11/06/2017 06:04 AM, Yubin Ruan wrote:
>>>
>>>> I am using something like this:
>>>>
>>>>    struct S1 {
>>>>      int index __attribute__((aligned(CACHE_LINE_SIZE)));
>>>>      struct S2 some_other;
>>>>    };

If I want to make this `index` field occupy one single cache line to
avoid false sharing, will that
`__attribute((aligned(CACHE_LINE_SIZE)))` suffice?

Yubin