Doc: Content edits to the acrntrace README file.

Signed-off-by: Deb Taylor <deb.taylor@intel.com>

misc/tools/acrntrace/README.rst

@@ -25,13 +25,13 @@ Options:
 -t max_time             max time to capture trace data (in second)
 -c                      clear the buffered old data (deprecated)
 -r                      capture the buffered old data instead of clearing it
--a cpu-set              only capture the trace data on these configured cpu-set
+-a cpu-set              only capture the trace data on the configured cpu-set
 
 acrntrace_format.py
 ===================
 
-The ``acrntrace_format.py`` is a offline tool for parsing trace data (as output
+The ``acrntrace_format.py`` is an offline tool for parsing trace data (as output
-by acrntrace) to human-readable formats based on given format.
+by acrntrace) to human-readable formats based on a given format.
 
 Here's an explanation of the tool's parameters:
 
@@ -43,19 +43,19 @@ Options:
 
 -h    print this message
 
-*formats* file specifies the rules to reformat the *trace_data* collected by
+The *formats* file specifies the rules to reformat the *trace_data* collected by
-``acrntrace`` into a human-readable text form. The rules in this file are of
+``acrntrace`` into a human-readable text form. The rules in this file follow
-the form::
+this form::
 
    event_id  text_format_string
 
-The text_format_string may include format specifiers, such as
+The ``text_format_string`` may include format specifiers, such as
 ``%(cpu)d``, ``%(tsc)d``, ``%(event)d``, ``%(1)d``, and ``%(2)d``.
-The 'd' format specifier outputs in decimal, alternatively 'x' will
+The 'd' format specifier outputs decimals. Alternatively 'x' will
-output in hexadecimal and 'o' will output in octal.
+output in hexadecimals and 'o' will output in octals.
 
 These respectively correspond to the CPU number (cpu), timestamp
-counter (tsc), event ID (event) and the data logged in the trace file.
+counter (tsc), event ID (event), and the data logged in the trace file.
 There can be only one such rule for each type of event.
 
 An example *formats_file* is available in the acrn_hypervisor repo in
@@ -65,7 +65,7 @@ acrnalyze.py
 ============
 
 The ``acrnalyze.py`` is a offline tool to analyze trace data (as output by
-acrntrace) based on given analyzer, such as ``vm_exit`` or ``irq``.
+acrntrace) based on a given analyzer, such as ``vm_exit`` or ``irq``.
 
 Options:
 
@@ -89,53 +89,53 @@ Options:
    * - :kbd:`--irq`
      - generate an IRQ-related report
 
-.. note:: We depend on TSC frequency to do time-based analysis. Please configure
+.. note:: We depend on TSC frequency to do time-based analysis. Be sure to configure
    the right TSC frequency that acrn runs on. TSC frequency can be obtained
    from the ACRN console log (calibrate_tsc, tsc_hz=xxx) when the hypervisor boots.
 
    The tool does not take into account CPU frequency variation that can
    occur during normal operation (aka CPU throttling) on the processor which
-   doesn't support for invariant TSC. The results may therefore not be
+   doesn't support for an invariant TSC. The results may therefore not be
    completely accurate in that regard.
 
 Typical use example
 ===================
 
 Here's a typical use of ``acrntrace`` to capture trace data from the SOS,
-converting the binary data to human-readable form, copying the processed trace
+convert the binary data to human-readable form, copy the processed trace
-data to your linux system, and running the analysis tool.
+data to your Linux system, and run the analysis tool.
 
-1. On the SOS, clear buffers before starting a trace, with:
+1. On the SOS, clear buffers before starting a trace using:
 
    .. code-block:: none
 
       # acrntrace -c
 
-#. Start capturing buffered trace data with:
+#. Start capturing buffered trace data using:
 
    .. code-block:: none
 
       # acrntrace
 
-   Trace files are created under current directory where we launch acrntrace,
+   Trace files are created under the current directory where we launch acrntrace,
    with a date-time-based directory name such as ``./acrntrace/20171115-101605``
 
-#. When done, stop a running ``acrntrace``, with:
+#. When done, stop a running ``acrntrace`` using:
 
    .. code-block:: none
 
       q <enter>
 
-#. Convert trace data to human-readable format, with:
+#. Convert trace data to human-readable format using:
 
    .. code-block:: none
 
       # acrntrace_format.py formats trace_data
 
-   Trace data will be converted to human-readable format based on given format
+   Trace data will be converted to human-readable format based on a given format
    and printed to stdout.
 
-#. Analysis of the collected data is done on a Linux PC, so you'll need
+#. Analysis of the collected data is done on a Linux PC so you'll need
    to copy the collected trace data to your Linux system (using ``scp`` is
    recommended):
 
@@ -154,7 +154,7 @@ data to your linux system, and running the analysis tool.
       # acrnalyze.py -i /home/xxxx/trace_data/20171115-101605/0 \
            -o /home/xxxx/trace_data/20171115-101605/cpu0 --vm_exit --irq
 
-   - Analysis report is written to stdout, or to a CSV file if
+   - The analysis report is written to stdout, or to a CSV file if
      a filename is specified using ``-o filename``.
    - The scripts require Python3.