Re: [RFC] a question about mlockall() and mprotect()

[Vlastimil Babka]

On 09/26/2017 11:22 AM, Xishi Qiu wrote:
> On 2017/9/26 17:13, Xishi Qiu wrote:
>>> This is still very fuzzy. What are you actually trying to achieve?
>>
>> I don't expect page fault any more after mlock.
>>
> 
> Our apps is some thing like RT, and page-fault maybe cause a lot of time,
> e.g. lock, mem reclaim ..., so I use mlock and don't want page fault
> any more.

Why does your app then have restricted mprotect when calling mlockall()
and only later adjusts the mprotect?

Vlastimil