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KVM, QEMU, and kernel project management

Posted Mar 31, 2010 13:36 UTC (Wed) by gdamjan (guest, #33634)
In reply to: KVM, QEMU, and kernel project management by mingo
Parent article: KVM, QEMU, and kernel project management

But you still need a special kernel in the guest, right? - a Linux kernel even.

So,
and considering there's a standardized host-guest communication channel now (virtio-ring I think), can't the perf support be in the guest kernel?

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Posted Apr 1, 2010 20:57 UTC (Thu) by oak (guest, #2786) [Link]

What about other tracing solutions?

For example hypervisor & host tracing was presented for LTT already in 2008:
http://lttng.org/files/papers/desnoyers-ols2008.pdf

The LTTV UI for LTT trace data has support for merging different (GB sized) traces based on the trace clock/timestamps. Good UI is crucial for making sense of the data, especially if one has several guests running at the same time.