User guide

3–iba_top Fabric Performance Monitor
iba_top TUI
IB0054607-01 A 3-3
Common Input Commands
The following input commands are available in every screen:
Q: Quit program;
u*: Up to previous screen;
L: Select Live image;
R: Navigate reverse 1 (r*) or 5 (R*) sweeps;
F: Navigate forward 1 (f*) or 5 (F*) sweeps;
b*: Select (previously) Bookmarked image;
B*: Bookmark currently selected image;
U*: Unbookmark Bookmarked image;
?: Help
Screen-Specific Input Commands
The screen-specific input commands will be discussed with each screen
description in the following sections.
Access to Live and Recent PM Historical Data
iba_top allows the user to access statistics from sequential PM sweeps (the PM
keeps a history of previous sweep images) and queries the PM at a user-specified
interval (10 seconds by default). When iba_top queries for statistics for the most
recent PM sweep it is in “Live” mode. In Live mode the data will change, at the
iba_top interval rate, as iba_top queries new PM sweeps. At each screen
(summary or detail) the data being displayed is refreshed for the current PM
sweep. A PM sweep can be in “frozen” mode. The data in a frozen sweep will not
change, allowing the statistics to be examined in summary and detail screens.
Two user actions result in a sweep being frozen.
The first is when the user “Bookmarks” a sweep. A Bookmarked sweep will remain
frozen until the user explicitly “Unbookmarks” it; iba_top allows one sweep at a
time to be bookmarked. The second action is when the user moves (navigates)
iba_top's focus to another sweep within the history of sweeps maintained by
the PM. For the duration of iba_top's focus on such a sweep it will remain
frozen. Navigation can occur from Live mode or when displaying a Bookmarked
image; during navigation iba_top is in “Historic” mode. Navigation can be
performed backward or forward, 1 or 5 sweeps at a time.