[Interest] dynamic library question

[Damian Ivanov]

Super thanks! :)

2014-03-17 23:21 GMT+01:00 Thiago Macieira <thiago.macieira at intel.com>:
> Em seg 17 mar 2014, às 21:27:00, Damian Ivanov escreveu:
>> Hi,
>>
>> A general question but maybe you are so kind and help me :-)
>> /usr/lib/libMyLib.so and
>> /opt/MyProj/lib/libMyLib.so
>> (100% indentical files)
>> So when I have 2 programs: one uses the one and the other, the other
>> lib, will they still share memory?
>
> That depends on the operating system in question. Linux, in general, will not
> share the pages if they don't come from the exact same file.
>
> However, if KSP is enabled, the kernel might realise the pages are identical
> and drop one copy. I would recommend you don't depend on it, so simply don't
> duplicate the files.
> --
> Thiago Macieira - thiago.macieira (AT) intel.com
>   Software Architect - Intel Open Source Technology Center
>
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