提交 9857b717 编写于 作者: J Jiri Olsa 提交者: Arnaldo Carvalho de Melo

perf c2c report: Limit the cachelines table entries

Add a limit for entries number of the cachelines table entries. By
default now it's the 0.0005% minimum of remote HITMs.

Also display only cachelines with remote hitm or store data.
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
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-inykbom2f19difvsu1e18avr@git.kernel.org
[ Disabled for now ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
上级 dd805768
...@@ -1642,11 +1642,45 @@ static int c2c_hists__reinit(struct c2c_hists *c2c_hists, ...@@ -1642,11 +1642,45 @@ static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
return hpp_list__parse(&c2c_hists->list, output, sort); return hpp_list__parse(&c2c_hists->list, output, sort);
} }
#define DISPLAY_LINE_LIMIT 0.0005
static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
{
struct c2c_hist_entry *c2c_he;
double ld_dist;
/* XXX Disabled for now, till we get a command line switch to control this */
return true;
c2c_he = container_of(he, struct c2c_hist_entry, he);
if (stats->rmt_hitm) {
ld_dist = ((double)c2c_he->stats.rmt_hitm / stats->rmt_hitm);
if (ld_dist < DISPLAY_LINE_LIMIT)
he->filtered = HIST_FILTER__C2C;
} else {
he->filtered = HIST_FILTER__C2C;
}
return he->filtered == 0;
}
static inline int valid_hitm_or_store(struct hist_entry *he)
{
struct c2c_hist_entry *c2c_he;
c2c_he = container_of(he, struct c2c_hist_entry, he);
return c2c_he->stats.rmt_hitm || c2c_he->stats.store;
}
static int filter_cb(struct hist_entry *he) static int filter_cb(struct hist_entry *he)
{ {
if (c2c.show_src && !he->srcline) if (c2c.show_src && !he->srcline)
he->srcline = hist_entry__get_srcline(he); he->srcline = hist_entry__get_srcline(he);
if (!valid_hitm_or_store(he))
he->filtered = HIST_FILTER__C2C;
return 0; return 0;
} }
...@@ -1654,11 +1688,12 @@ static int resort_cl_cb(struct hist_entry *he) ...@@ -1654,11 +1688,12 @@ static int resort_cl_cb(struct hist_entry *he)
{ {
struct c2c_hist_entry *c2c_he; struct c2c_hist_entry *c2c_he;
struct c2c_hists *c2c_hists; struct c2c_hists *c2c_hists;
bool display = he__display(he, &c2c.hitm_stats);
c2c_he = container_of(he, struct c2c_hist_entry, he); c2c_he = container_of(he, struct c2c_hist_entry, he);
c2c_hists = c2c_he->hists; c2c_hists = c2c_he->hists;
if (c2c_hists) { if (display && c2c_hists) {
c2c_hists__reinit(c2c_hists, c2c_hists__reinit(c2c_hists,
"percent_rmt_hitm," "percent_rmt_hitm,"
"percent_lcl_hitm," "percent_lcl_hitm,"
......
...@@ -1195,6 +1195,7 @@ static void hist_entry__check_and_remove_filter(struct hist_entry *he, ...@@ -1195,6 +1195,7 @@ static void hist_entry__check_and_remove_filter(struct hist_entry *he,
case HIST_FILTER__GUEST: case HIST_FILTER__GUEST:
case HIST_FILTER__HOST: case HIST_FILTER__HOST:
case HIST_FILTER__SOCKET: case HIST_FILTER__SOCKET:
case HIST_FILTER__C2C:
default: default:
return; return;
} }
......
...@@ -22,6 +22,7 @@ enum hist_filter { ...@@ -22,6 +22,7 @@ enum hist_filter {
HIST_FILTER__GUEST, HIST_FILTER__GUEST,
HIST_FILTER__HOST, HIST_FILTER__HOST,
HIST_FILTER__SOCKET, HIST_FILTER__SOCKET,
HIST_FILTER__C2C,
}; };
enum hist_column { enum hist_column {
......
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