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SubjectRe: [PATCH 1/2] perf tools: Add --tui and --stdio to choose the UI
Em Sun, Aug 22, 2010 at 04:20:03AM -0400, Christoph Hellwig escreveu:
> On Sat, Aug 21, 2010 at 03:26:58PM -0300, Arnaldo Carvalho de Melo wrote:
> > > Btw, am I the only one that doesn't find the next interface too helpful?
> > > In general the line oriented interface seem to present the information
> > > much better, and in the cases where it gets too complicated the newt

> > Much better how, exactly?

> - it uses the space available in a terminal window much more
> efficiently. Output starts in row 0, column 0 and expands all the
> way that's needed.
> - it incluses a descruption of what the columns of output mean
> - it provides percentages for the individual callchains parts after
> branching out
> - in graph/fractal modes there are lines that show how the parts
> are connected, making it possible to read the output, unlinke
> the TUI mode where the "expanind" nodes are very hard to follow.
> - just running perf reports gets an overview of all callchains instead
> of having to expand dozens of things
> - the colour scheme is the normal shell one (light gray on black for
> me) instead of one hurting the eyes

All good points, will work on them, thanks for pointing them out!

>
> > > interface doesn't really helper either. A real gtk/qt interface with
> > > a proper tree widget would seem like the more useful interface for that.
> >
> > What would a gtk/qt interface buy us that is not present on the TUI
> > right now?
>
> Generally for tree/graph like data structures a real X GUI provides much
> nicer rendering. It'll allow to render the connected lines just as in
> the line oriented interface, but in a nicer way using real thin lines

Cool, connected lines is something that indeed has to happen, just like
mutt in threaded mode, will work on that.

> in a tree widget. It'll also genereally allow better text placement
> in the window compared to the single centered window in the newt
> interface. Also the GUI programs follow the common color scheme of the
> rest of the desktop instead of hurting your eye. In addition to that

Lets stop hurting eyes!

> scrollbars (horizontal / vertical) are a lot more intuitive in a typical
> X GUI than in newt.

Ok, thanks for the detailed description of the problems.

- Arnaldo


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