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perf c2c report: Add TUI cacheline browser

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Adding simple TUI cacheline browser. It triggers when you press 'd' in
the main browser on the specific cacheline.

It allows to navigate through cacheline's offsets and display callchains
(implemented in following patches).

Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Jiri Olsa authored and Arnaldo Carvalho de Melo committed 2016-10-21 10:31:55 -03:00
1 parent 5a1a99cd2e
commit f1c5fd4d0b
1 file changed
+81
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tools/perf/builtin-c2c.c
+81
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@@ -1829,6 +1829,84 @@ static void c2c_browser__update_nr_entries(struct hist_browser *hb)
hb->nr_non_filtered_entries = nr_entries;
}
struct c2c_cacheline_browser {
struct hist_browser hb;
struct hist_entry *he;
};
static int
perf_c2c_cacheline_browser__title(struct hist_browser *browser,
char *bf, size_t size)
{
struct c2c_cacheline_browser *cl_browser;
struct hist_entry *he;
uint64_t addr = 0;
cl_browser = container_of(browser, struct c2c_cacheline_browser, hb);
he = cl_browser->he;
if (he->mem_info)
addr = cl_address(he->mem_info->daddr.addr);
scnprintf(bf, size, "Cacheline 0x%lx", addr);
return 0;
}
static struct c2c_cacheline_browser*
c2c_cacheline_browser__new(struct hists *hists, struct hist_entry *he)
{
struct c2c_cacheline_browser *browser;
browser = zalloc(sizeof(*browser));
if (browser) {
hist_browser__init(&browser->hb, hists);
browser->hb.c2c_filter = true;
browser->hb.title = perf_c2c_cacheline_browser__title;
browser->he = he;
}
return browser;
}
static int perf_c2c__browse_cacheline(struct hist_entry *he)
{
struct c2c_hist_entry *c2c_he;
struct c2c_hists *c2c_hists;
struct c2c_cacheline_browser *cl_browser;
struct hist_browser *browser;
int key = -1;
c2c_he = container_of(he, struct c2c_hist_entry, he);
c2c_hists = c2c_he->hists;
cl_browser = c2c_cacheline_browser__new(&c2c_hists->hists, he);
if (cl_browser == NULL)
return -1;
browser = &cl_browser->hb;
/* reset abort key so that it can get Ctrl-C as a key */
SLang_reset_tty();
SLang_init_tty(0, 0, 0);
c2c_browser__update_nr_entries(browser);
while (1) {
key = hist_browser__run(browser, "help");
switch (key) {
case 'q':
goto out;
default:
break;
}
}
out:
free(cl_browser);
return 0;
}
static int perf_c2c_browser__title(struct hist_browser *browser,
char *bf, size_t size)
{
@@ -1872,6 +1950,9 @@ static int perf_c2c__hists_browse(struct hists *hists)
switch (key) {
case 'q':
goto out;
case 'd':
perf_c2c__browse_cacheline(browser->he_selection);
break;
default:
break;
}