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perf newt: Make <- zoom out filters

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After we use the filters to zoom into DSOs or threads, we can use <-
(left arrow) to zoom out from the last filter applied.

It is still possible to zoom out of order by using the popup menu.

With this we now have the zoom out operation on the browsing fast path,
by allowing fast navigation using just the four arrors and the enter key
to expand collapse callchains.

Suggested-by: Ingo Molnar <mingo@elte.hu>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2010-05-14 20:05:21 -03:00
parent c82ee828aa
commit 3e1bbdc3a7
4 changed files with 120 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
tools/perf/util/newt.c
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@@ -9,6 +9,7 @@
#include "cache.h"
#include "hist.h"
#include "pstack.h"
#include "session.h"
#include "sort.h"
#include "symbol.h"
@@ -750,6 +751,7 @@ static int hist_browser__populate(struct hist_browser *self, struct hists *hists
newtFormAddHotKey(self->form, 'A');
newtFormAddHotKey(self->form, 'a');
newtFormAddHotKey(self->form, NEWT_KEY_RIGHT);
newtFormAddHotKey(self->form, NEWT_KEY_LEFT);
newtFormAddComponents(self->form, self->tree, NULL);
self->selection = newt__symbol_tree_get_current(self->tree);
@@ -801,6 +803,7 @@ static int hist_browser__title(char *bf, size_t size, const char *input_name,
int hists__browse(struct hists *self, const char *helpline, const char *input_name)
{
struct hist_browser *browser = hist_browser__new();
struct pstack *fstack = pstack__new(2);
const struct thread *thread_filter = NULL;
const struct dso *dso_filter = NULL;
struct newtExitStruct es;
@@ -810,12 +813,16 @@ int hists__browse(struct hists *self, const char *helpline, const char *input_na
if (browser == NULL)
return -1;
fstack = pstack__new(2);
if (fstack == NULL)
goto out;
ui_helpline__push(helpline);
hist_browser__title(msg, sizeof(msg), input_name,
dso_filter, thread_filter);
if (hist_browser__populate(browser, self, msg) < 0)
goto out;
goto out_free_stack;
while (1) {
const struct thread *thread;
@@ -836,6 +843,19 @@ int hists__browse(struct hists *self, const char *helpline, const char *input_na
else
continue;
}
if (es.u.key == NEWT_KEY_LEFT) {
const void *top;
if (pstack__empty(fstack))
continue;
top = pstack__pop(fstack);
if (top == &dso_filter)
goto zoom_out_dso;
if (top == &thread_filter)
goto zoom_out_thread;
continue;
}
}
if (browser->selection->sym != NULL &&
@@ -888,12 +908,15 @@ do_annotate:
hist_entry__annotate_browser(he);
} else if (choice == zoom_dso) {
if (dso_filter) {
pstack__remove(fstack, &dso_filter);
zoom_out_dso:
ui_helpline__pop();
dso_filter = NULL;
} else {
ui_helpline__fpush("To zoom out press -> + \"Zoom out of %s DSO\"",
ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"",
dso->kernel ? "the Kernel" : dso->short_name);
dso_filter = dso;
pstack__push(fstack, &dso_filter);
}
hists__filter_by_dso(self, dso_filter);
hist_browser__title(msg, sizeof(msg), input_name,
@@ -902,13 +925,16 @@ do_annotate:
goto out;
} else if (choice == zoom_thread) {
if (thread_filter) {
pstack__remove(fstack, &thread_filter);
zoom_out_thread:
ui_helpline__pop();
thread_filter = NULL;
} else {
ui_helpline__fpush("To zoom out press -> + \"Zoom out of %s(%d) thread\"",
ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
thread->comm_set ? thread->comm : "",
thread->pid);
thread_filter = thread;
pstack__push(fstack, &thread_filter);
}
hists__filter_by_thread(self, thread_filter);
hist_browser__title(msg, sizeof(msg), input_name,
@@ -918,6 +944,8 @@ do_annotate:
}
}
err = 0;
out_free_stack:
pstack__delete(fstack);
out:
hist_browser__delete(browser);
return err;