Re: [Qemu-devel] Using the qemu tracepoints with SystemTap

2011-09-14 Thread William Cohen
On 09/14/2011 10:51 AM, Stefan Hajnoczi wrote: On Tue, Sep 13, 2011 at 8:38 PM, William Cohen wco...@redhat.com wrote: On 09/13/2011 12:10 PM, William Cohen wrote: Should the qemu.kvm.cpu_in and qemu.kvm.cpu_out match up? There are a lot more qemu.kvm.cpu_out than qemu.kvm.cpu_in count. I

[Qemu-devel] [Bug 848571] Re: qemu does not generate a qemu-kvm.stp tapset file

2011-09-13 Thread William Cohen
You are correct. the qemu.spec file is doing the copy. ** Changed in: qemu Status: New = Invalid -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/848571 Title: qemu does not generate a

Re: [Qemu-devel] Using the qemu tracepoints with SystemTap

2011-09-13 Thread William Cohen
On 09/13/2011 06:03 AM, Stefan Hajnoczi wrote: On Mon, Sep 12, 2011 at 4:33 PM, William Cohen wco...@redhat.com wrote: The RHEL-6 version of qemu-kvm makes the tracepoints available to SystemTap. I have been working on useful examples for the SystemTap tracepoints in qemu. There doesn't seem

Re: [Qemu-devel] Using the qemu tracepoints with SystemTap

2011-09-13 Thread William Cohen
On 09/13/2011 12:10 PM, William Cohen wrote: Should the qemu.kvm.cpu_in and qemu.kvm.cpu_out match up? There are a lot more qemu.kvm.cpu_out than qemu.kvm.cpu_in count. I found that cpu_in and cpu_out refer to input and output instructions. I wrote a little script tally up the input

[Qemu-devel] Using the qemu tracepoints with SystemTap

2011-09-12 Thread William Cohen
Hi All, The RHEL-6 version of qemu-kvm makes the tracepoints available to SystemTap. I have been working on useful examples for the SystemTap tracepoints in qemu. There doesn't seem to be a great number of examples showing the utility of the tracepoints in diagnosing problems. However, I came

[Qemu-devel] [Bug 848571] [NEW] qemu does not generate a qemu-kvm.stp tapset file

2011-09-12 Thread William Cohen
Public bug reported: To make the systemtap probing easier to use qemu generates qemu*.stp files with aliases for various events for each of the executables. The installer places these files in /usr/share/systemtap/tapset/. These files are generated by the tracetool. However, the