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Commit f1c5fd4d authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
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perf c2c report: Add TUI cacheline browser 



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: default avatarJiri Olsa <jolsa@kernel.org>
Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-fovjwgyusv3rz5qxk3hnahtl@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 5a1a99cd

tools/perf/builtin-c2c.c

+81 −0
Original line number Diff line number Diff line
@@ -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;

		}