Teledyne LeCroy IBTracer 4X - Users Manual Ver.2.30 - Manual (Page 51)

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IBTracer 4X Protocol Analyzer User’s Manual CATC SW Version 2.3
Options
The Options box contains the
following:
Beep When Trigger Occurs
Causes the PC to beep when a
trigger event has occurred.
Save External Interface Signals
Causes the analyzer to save external interface signals from a break-out
board as fields in the trace.
Inhibit
Allows you to block the IBTracer reception of transmit and/or receive link
activity. When a direction is inhibited, none of the other recording events
will be detected.
Buffer Size
The Buffer Size box has a slide bar for adjusting the
recording buffer size from 1.6 megabytes to
2048 MB.
The Recording Type option determines how this
buffer is used. Although there are 2048 MB of physical memory in the
Analyzer, the efficiency of the recording ranges from 2:1 to 4:1 ratios of
physical memory to actual InfiniBand traffic. Shorter InfiniBand packets
yield a less efficient recording. The non-traffic portion of physical memory
is utilized for control and timing information.
You must have an equivalent amount of physical memory on the computer
controlling the IBTracer analyzer.
Note
The scale is not linear and affords more granularity in the smaller
buffer sizes.
Trigger Position
The Trigger Position slide bar sets the amount of pre-
and post-trigger recording. It also allows adjustment
of the location of the trigger within the defined buffer.
You can adjust the Triggering Position between 1 and
99% post-Trigger. Trigger Position is available only
when Manual Trigger or Event Trigger is selected as Recording type.