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authorJiri Olsa <jolsa@kernel.org>2016-10-11 13:52:05 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-10-21 10:32:02 -0300
commitaf09b2d35e18f1a377aaa2bc4e5ba4abb98a1088 (patch)
tree9fa3b9926f9c0b4f93495706c357221b533b213f /tools
parent18f278d2dd68fdccf8810e78d10d6b75a6f2f67a (diff)
downloadblackbird-op-linux-af09b2d35e18f1a377aaa2bc4e5ba4abb98a1088.tar.gz
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perf c2c report: Add --show-all option
Normally we limit the main list to contain only entries with HITM % value > 0.0005, but it might be useful to display all captured entries. Adding --show-all option for that. Requested-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Jiri 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-nokgjdwikbegec5jzj4mxhqc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/Documentation/perf-c2c.txt3
-rw-r--r--tools/perf/builtin-c2c.c7
2 files changed, 8 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-c2c.txt b/tools/perf/Documentation/perf-c2c.txt
index 33ed4564a8c0..21810d711f5f 100644
--- a/tools/perf/Documentation/perf-c2c.txt
+++ b/tools/perf/Documentation/perf-c2c.txt
@@ -97,6 +97,9 @@ REPORT OPTIONS
--no-source::
Do not display Source:Line column.
+--show-all::
+ Show all captured HITM lines, with no regard to HITM % 0.0005 limit.
+
C2C RECORD
----------
The perf c2c record command setup options related to HITM cacheline analysis
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 7eb418d3af04..c6d0dda594d9 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -71,6 +71,7 @@ struct perf_c2c {
int node_info;
bool show_src;
+ bool show_all;
bool use_stdio;
bool stats_only;
bool symbol_full;
@@ -1773,8 +1774,8 @@ 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;
+ if (c2c.show_all)
+ return true;
c2c_he = container_of(he, struct c2c_hist_entry, he);
@@ -2513,6 +2514,8 @@ static int perf_c2c__report(int argc, const char **argv)
"Display full length of symbols"),
OPT_BOOLEAN(0, "no-source", &no_source,
"Do not display Source Line column"),
+ OPT_BOOLEAN(0, "show-all", &c2c.show_all,
+ "Show all captured HITM lines."),
OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
"print_type,threshold[,print_limit],order,sort_key[,branch],value",
callchain_help, &parse_callchain_opt,
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