Hi,

I want to use Xenoprof to monitors some system-wide events (like L2 misses etc).

1. I'm using Xen 3.3. I guess I don't need to patch it as I find that a hypercall and some source codes related to xenoprof are already there. So I just downloaded the patch against oprofile. After that, when I run opcontrol --help, I found that "--xen" was listed as an option. So I think my installation should be OK.

2. I will run some workloads on domU. What I want to monitor is the system-wide event counts like L2_LINES_IN. What should I do? Is running "opcontrol --start --no-vmlinux --event=XXXX:YYYY:ZZZZ" on dom0 enough? Need I specify "--passive-domains" or "--active-domains" ?

3. I'm running the system on a muliti-core machine. Can Xenoprof list the event counters per core?

Thanks a lot!
zwm

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