Xen devel - Nov 2010 - Questions about xenoprof cpu support (intel xeon x5650, model# : 44)

Hi, All. 

 

Currently, I''m trying to use xenoprof in my environment (intel xeon
x5650, 2
socket, 6core/socket, model#: 44, westmere).

According to the source code of xenoprof, my cpu is not in the supported
list. 

So, currently, only timer mode is available for me. 

However, I need some information of my vm''s behavior such as cache
misses
which can be obtained in the NMI mode.

I saw a document saying that all the pmu hardware event of my cpu is same
with i386/core_i7 . 

 

Thus, I added my model number like below.

 

static int __init ppro_init(char **cpu_type)

{

.

        switch (cpu_model) {

.

        case 15: case 23:

                *cpu_type = "i386/core_2";

               break;

        case 0x2e:

        //cmkim

        case 0x2c:

        case 26:

                spec = &op_arch_perfmon_spec;

                *cpu_type = "i386/core_i7";

                break;

        ..

        }

.

}

In the xen source code, I changed similar path with similar way to set my
cpu model as i386/core_i7.

 

Now I''m possible to run NMI mode in my xen environment. 

However, I cannot see any event received by xenoprof.

Opreport and log file always return that there is no event captured.

 

Does anyone has solved or patched this issue? I cannot find anything related
with it. (Naresh posting wanted to get the solution, however it was ended
with no solution at that time.)

 

 



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