On Tue, Apr 10, 2012 at 3:58 AM, Jason Wang [off-list ref] wrote:

To help in vhost analyzing, the following series adding basic tracepoints to
vhost. Operations of both virtqueues and vhost works were traced in current
implementation, net code were untouched. A top-like satistics displaying script
were introduced to help the troubleshooting.

TODO:
- net specific tracepoints?

---

Jason Wang (2):
     vhost: basic tracepoints
     tools: virtio: add a top-like utility for displaying vhost satistics


 drivers/vhost/trace.h   |  153 ++++++++++++++++++++
 drivers/vhost/vhost.c   |   17 ++
 tools/virtio/vhost_stat |  360 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 528 insertions(+), 2 deletions(-)
 create mode 100644 drivers/vhost/trace.h
 create mode 100755 tools/virtio/vhost_stat

Perhaps this can replace the vhost log feature?  I'm not sure if
tracepoints support the right data types but it seems like vhost
debugging could be done using tracing with less code.

Stefan