perf tools: Introduce perf_mem__lvl_scnprintf function

Move meminfo's lvl display function into mem-events.c object, so it
could be reused later from script code.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1456303616-26926-7-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 4be3eb74001b729a9ca35e7084f71b8cd0b9ee7a..bddb1217d129e0ab764a067c04acb937ed9eecec 100644 (file)
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -130,3 +130,56 @@ void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
        if (miss)
                strncat(out, " miss", sz - l);
 }
+
+static const char * const mem_lvl[] = {
+       "N/A",
+       "HIT",
+       "MISS",
+       "L1",
+       "LFB",
+       "L2",
+       "L3",
+       "Local RAM",
+       "Remote RAM (1 hop)",
+       "Remote RAM (2 hops)",
+       "Remote Cache (1 hop)",
+       "Remote Cache (2 hops)",
+       "I/O",
+       "Uncached",
+};
+
+void perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
+{
+       size_t i, l = 0;
+       u64 m =  PERF_MEM_LVL_NA;
+       u64 hit, miss;
+
+       if (mem_info)
+               m  = mem_info->data_src.mem_lvl;
+
+       sz -= 1; /* -1 for null termination */
+       out[0] = '\0';
+
+       hit = m & PERF_MEM_LVL_HIT;
+       miss = m & PERF_MEM_LVL_MISS;
+
+       /* already taken care of */
+       m &= ~(PERF_MEM_LVL_HIT|PERF_MEM_LVL_MISS);
+
+       for (i = 0; m && i < ARRAY_SIZE(mem_lvl); i++, m >>= 1) {
+               if (!(m & 0x1))
+                       continue;
+               if (l) {
+                       strcat(out, " or ");
+                       l += 4;
+               }
+               strncat(out, mem_lvl[i], sz - l);
+               l += strlen(mem_lvl[i]);
+       }
+       if (*out == '\0')
+               strcpy(out, "N/A");
+       if (hit)
+               strncat(out, " hit", sz - l);
+       if (miss)
+               strncat(out, " miss", sz - l);
+}

diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index d8fb8e18418c9e7af82932256b322bf015598f43..bd0d7f7ae1132c84c9d9a544c8e09473aa29f9cf 100644 (file)
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -26,4 +26,5 @@ char *perf_mem_events__name(int i);
 
 struct mem_info;
 void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
+void perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
 #endif /* __PERF_MEM_EVENTS_H */

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 160df202c34f8ae4e39f8155c750925f27c1f7af..d894759c47f05e8335d0201647b829b3ca86e100 100644 (file)
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -858,60 +858,12 @@ sort__lvl_cmp(struct hist_entry *left, struct hist_entry *right)
        return (int64_t)(data_src_r.mem_lvl - data_src_l.mem_lvl);
 }
 
-static const char * const mem_lvl[] = {
-       "N/A",
-       "HIT",
-       "MISS",
-       "L1",
-       "LFB",
-       "L2",
-       "L3",
-       "Local RAM",
-       "Remote RAM (1 hop)",
-       "Remote RAM (2 hops)",
-       "Remote Cache (1 hop)",
-       "Remote Cache (2 hops)",
-       "I/O",
-       "Uncached",
-};
-
 static int hist_entry__lvl_snprintf(struct hist_entry *he, char *bf,
                                    size_t size, unsigned int width)
 {
        char out[64];
-       size_t sz = sizeof(out) - 1; /* -1 for null termination */
-       size_t i, l = 0;
-       u64 m =  PERF_MEM_LVL_NA;
-       u64 hit, miss;
-
-       if (he->mem_info)
-               m  = he->mem_info->data_src.mem_lvl;
-
-       out[0] = '\0';
-
-       hit = m & PERF_MEM_LVL_HIT;
-       miss = m & PERF_MEM_LVL_MISS;
-
-       /* already taken care of */
-       m &= ~(PERF_MEM_LVL_HIT|PERF_MEM_LVL_MISS);
-
-       for (i = 0; m && i < ARRAY_SIZE(mem_lvl); i++, m >>= 1) {
-               if (!(m & 0x1))
-                       continue;
-               if (l) {
-                       strcat(out, " or ");
-                       l += 4;
-               }
-               strncat(out, mem_lvl[i], sz - l);
-               l += strlen(mem_lvl[i]);
-       }
-       if (*out == '\0')
-               strcpy(out, "N/A");
-       if (hit)
-               strncat(out, " hit", sz - l);
-       if (miss)
-               strncat(out, " miss", sz - l);
 
+       perf_mem__lvl_scnprintf(out, sizeof(out), he->mem_info);
        return repsep_snprintf(bf, size, "%-*s", width, out);
 }