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Re: [Qemu-devel] [PATCH 0/6] hypertrace: Lightweight guest-to-QEMU trace
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH 0/6] hypertrace: Lightweight guest-to-QEMU trace channel |
Date: |
Tue, 23 Aug 2016 11:54:30 -0400 |
User-agent: |
Mutt/1.6.2 (2016-07-01) |
On Sun, Aug 21, 2016 at 02:32:34PM +0200, Lluís Vilanova wrote:
> Unfortuntely, I've been unable to to make dtrace recognise QEMU's events (I'm
> only able to see the host kernel events). If someone with more experience on
> it
> can help me use dtrace with QEMU's events, I'll also add the supporting
> library
> to let dtrace do the callout to QEMU's moitor interface and control the
> events,
> and add a prperly useful example of that on the hypertrace docs (which was my
> original intention).
Which "dtrace" and host OS are you using?
QEMU builds with static user-space probes. You need to tell DTrace or
SystemTap to enable those probes in order to record trace data.
Stefan
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- Re: [Qemu-devel] [PATCH 0/6] hypertrace: Lightweight guest-to-QEMU trace channel, (continued)
Re: [Qemu-devel] [PATCH 0/6] hypertrace: Lightweight guest-to-QEMU trace channel, Stefan Hajnoczi, 2016/08/18
Re: [Qemu-devel] [PATCH 0/6] hypertrace: Lightweight guest-to-QEMU trace channel, Lluís Vilanova, 2016/08/21