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142 lines
4.7 KiB
142 lines
4.7 KiB
15 years ago
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<tip category="KCachegrind|Help">
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<html>
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<p>...that the <em>What's This?</em> help for every GUI widget
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in KCachegrind contains detailed usage information for this widget?
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It is highly recommended to read at least these help texts on first
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use. Request <em>What's This?</em> help by pressing
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Shift+F1 and clicking on the widget.</p>
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</html>
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</tip>
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<tip category="KCachegrind|Explanation">
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<html>
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<p>...that you can get profile information at instruction level
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with Calltree when you provide the option <em>--dump-instr=yes</em>?
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Use the Assembler View for the instruction annotations.
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</p>
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</html>
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</tip>
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<tip category="KCachegrind|Keyboard">
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<html>
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<p>...that you can use Alt-Left/Right keys of your keyboard to go
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back/forward in the active object history ?</p>
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</html>
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</tip>
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<tip category="KCachegrind|Keyboard">
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<html>
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<p>...that you can navigate in the Callee/Caller Map View using
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arrow keys? Use Left/Right to change to siblings of the current
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item; use Up/Down to go one nesting level up/down. To select
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the current item, press Space, and to activate it, press Return.
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</p>
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</html>
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</tip>
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<tip category="KCachegrind|Keyboard">
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<html>
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<p>...that you can navigate in the Call Graph View using
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arrow keys? Use Up/Down to go one calling level up/down, alternating
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between calls and functions. Use Left/Right to change to siblings of a current
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selected call. To activate the current item, press Return.
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</p>
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</html>
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</tip>
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<tip category="KCachegrind|Filters">
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<html>
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<p>...that you can rapidly locate a function by entering part of its
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name (case-insensitive) into the edit line of the toolbar
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and hit return?</p>
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</html>
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</tip>
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<tip category="KCachegrind|Appearance">
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<html>
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<p>...that you can assign custom colors to
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ELF objects/C++ Classes/Source Files for graph coloring
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in <em>Settings->Configure KCachegrind...</em>?</p>
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</html>
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</tip>
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<tip category="KCachegrind|Configuration">
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<html>
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<p>...that you can see if debug info is available for a selected
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function by looking at the location label in the Info tab or
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the source listing header in the source tab?</p>
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<p>There must be the name of the source file (with extension).
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If KCachegrind still doesn't show the source, make sure that you
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have added the directory of the source file to the
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<em>Source Directories</em> list in the configuration.
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</html>
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</tip>
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<tip category="KCachegrind|Appearance">
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<html>
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<p>...that you can configure whether KCachgrind should
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show absolute event counts or relative ones (percentage display)?</p>
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</html>
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</tip>
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<tip category="KCachegrind|Appearance">
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<html>
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<p>...that you can configure the maximum number of items
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for all function lists in KCachegrind? Limiting the number
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of items is done to get a fast reacting GUI. The last item in
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the list will show you the number of skipped functions, together
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with a cost condition for these skipped functions.</p>
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<p>To activate a function with small costs, search for it and select
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it in the flat profile. Selecting functions with small cost will
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temporarily add them to the flat profile list.</p>
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</html>
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</tip>
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<tip category="KCachegrind|Explanation">
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<html>
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<p>...that the Coverage tab - in contrast to the Call Lists tab -
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shows <em>all</em> functions that are calling the selected function
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(upper part) / are called by the selected function (bottom part),
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no matter how many function are between them on the stack?</p>
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<p>Examples:</p>
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<p>An entry in the upper list for function foo1() with a value of 50%
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with function bar() selected means that 50% of all the cost of function
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bar() happened while called from function foo1().</p>
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<p>An entry in the bottom list for function foo2() with a value of 50%
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with function bar() selected means that 50% of all the cost of function
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bar() happened while calling foo2() from bar().</p>
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</html>
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</tip>
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<tip category="KCachegrind|Explanation">
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<html>
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<p>...that waiting for the tool tip inside of a tree map
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shows the list of names of the nested rectangles the mouse
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pointer is over?</p>
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<p>Items from this list can be selected by pressing the right
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mouse button.</p>
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</html>
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</tip>
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<tip category="KCachegrind|Explanation">
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<html>
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<p>...that you can constrain the cost counts shown to only a
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few parts of the whole trace by selecting these parts in the
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"Trace Selection" Dockable?</p>
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<p>To generate multiple parts in a profiling run with
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cachegrind, use e.g. option --cachedumps=xxx for parts
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of a length of xxx basic blocks (A basic block is a run
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of not-branching assembler statements inside of your program
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code).</p>
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</html>
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</tip>
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<tip category="KCachegrind|Explanation">
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<p>...that by splitting the view to show information of
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two functions simultaniously, selecting a function in
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one panel shows the information for that function
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in the other panel?</p>
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</html>
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</tip>
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