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[Qemu-devel] [RFC v4][PATCH 0/3] Monitor support for Qemu tracing
From: |
Prerna Saxena |
Subject: |
[Qemu-devel] [RFC v4][PATCH 0/3] Monitor support for Qemu tracing |
Date: |
Thu, 24 Jun 2010 16:49:30 +0530 |
This set of patches enables trace visualization & control
via the QEMU monitor. It is based on trace infrastructure posted
upstream :
( http://lists.gnu.org/archive/html/qemu-devel/2010-05/msg02407.html )
This patchset adds monitor commands :
- info trace : to view current contents of the trace buffer
- info tracepoints : to view all available tracepoints and their state.
- tracepoint NAME on|off : to enable/disable the logging of dataThis is v3 of a
set of patches to enable trace visualization & control
via the QEMU monitor.
Changelog from v3:
1. As suggested, it replaces a hash-based search of tracepoints
with a linear search.
2. Static initialization of trace event array.
3. Cleanups.
Changelog from v2:
1. Clean-ups, particularly relating to export of tdb_hash().
Changelog from v1:
1. Command 'info trace' is used to view current contents of buffer, in
place of 'trace'.
2. Cleanups
Todos :
1. Integration with QMP
2. More tracepoints need to be added for instrumenting other qemu components
such as virtio drivers, etc.
--
Prerna Saxena
Linux Technology Centre,
IBM Systems and Technology Lab,
Bangalore, India
- [Qemu-devel] [RFC v4][PATCH 0/3] Monitor support for Qemu tracing,
Prerna Saxena <=