Teledyne LeCroy SAS Suite User Manual User Manual

Page 281

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SASSuite User Manual

Version 6.25

LeCroy Corporation

271

but instead of pressing ENTER to enter the formula, press CTRL+SHIFT+ENTER. This
enters this formula into the entire array of cells you selected. The values shown are the
number of datapoint that fall between each "bucket" value.

You can produce a graph of this data by using the Excel Chart Wizard. Select the cells
containing the histogram data. Click on the Chart Wizard icon and follow the instructions.
On the second step, click on the "Series" tab, then on the "Category (X) axis labels:" field,
select the list of "buckets" in Q519 through Q526, and enter them as axis labels.

The result is the graph shown below:

This graph shows an interesting bimodal distribution in command completion times, with
a large set of commands completing within less than 5 microsecond, and another set of
commands requiring 1-20 milliseconds to complete. By sorting and analyzing this
pattern, the user can more easily understand which commands are resulting in long
completion times and causing performance degradation.

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