Here is a small statistic about method call frequency, its generated
from an mcs compilation run (patch to generate the info is attached).
Method call frequency distribution:
#calls <= 1 242 14.9% 14.9%
14.9% of all methods are only called once
#calls <= 2 99 6.1% 21.0%
#calls <= 4 78 4.8% 25.8%
#calls <= 8 87 5.4% 31.2%
#calls <= 16 103 6.3% 37.5%
#calls <= 32 69 4.2% 41.7%
#calls <= 64 42 2.6% 44.3%
#calls <= 128 147 9.1% 53.4%
53.4% of all methods are called less than 128 times
#calls <= 256 70 4.3% 57.7%
#calls <= 512 75 4.6% 62.3%
#calls <= 1024 118 7.3% 69.6%
#calls <= 2048 102 6.3% 75.9%
#calls <= 4096 95 5.8% 81.7%
#calls <= 8192 85 5.2% 86.9%
#calls <= 16384 69 4.2% 91.2%
#calls <= 32768 51 3.1% 94.3%
#calls <= 65536 37 2.3% 96.6%
#calls <= 131072 26 1.6% 98.2%
#calls <= 262144 15 0.9% 99.1%
#calls <= 524288 9 0.6% 99.7%
#calls <= 1048576 5 0.3% 100.0%
#calls <= 2097152 0 0.0% 100.0%
#calls <= 4194304 0 0.0% 100.0%
#calls <= 8388608 0 0.0% 100.0%
#calls <= 16777216 0 0.0% 100.0%
#calls <= 33554432 0 0.0% 100.0%
#calls <= 67108864 0 0.0% 100.0%
#calls <= 134217728 0 0.0% 100.0%
#calls <= 268435456 0 0.0% 100.0%
#calls <= 536870912 0 0.0% 100.0%
#calls <= 1073741824 0 0.0% 100.0%
#calls <= 2147483648 0 0.0% 100.0%
? metadata/monosn
? tests/stest.dat
Index: metadata/profiler.c
===================================================================
RCS file: /cvs/public/mono/mono/metadata/profiler.c,v
retrieving revision 1.6
diff -u -r1.6 profiler.c
--- metadata/profiler.c 24 Aug 2002 17:29:06 -0000 1.6
+++ metadata/profiler.c 19 Sep 2002 14:30:01 -0000
@@ -2,6 +2,7 @@
#include "mono/metadata/profiler-private.h"
#include "mono/metadata/debug-helpers.h"
#include <string.h>
+#include <math.h>
static MonoProfiler * current_profiler = NULL;
@@ -479,12 +480,25 @@
char buf [256];
char *sig;
guint64 total_calls = 0;
+ int cbuf [64];
+ int i, nfunc = 0, idx;
+ float sum = 0.0;
+ for (i = 0; i < 32; i++) cbuf [i] = 0;
+
if (funcs)
g_print ("Method name\t\t\t\t\tTotal (ms) Calls Per call (ms)\n");
for (tmp = funcs; tmp; tmp = tmp->next) {
p = tmp->data;
total_calls += p->count;
+
+ nfunc++;
+
+ idx = (int)log2 ((double)p->count);
+
+ cbuf [idx]++;
+ //printf ("TEST1 %llu %d %d %g\n", p->count, idx, cbuf [idx], log2
+((double)4.0));
+
if (!(gint)(p->total*1000))
continue;
sig = mono_signature_get_desc (p->u.method->signature, FALSE);
@@ -496,6 +510,13 @@
(double)(p->total*1000), p->count,
(double)(p->total*1000)/(double)p->count);
}
printf ("Total number of calls: %lld\n", total_calls);
+
+ printf ("Method call frequency distribution\n");
+ for (i = 0; i < 32; i++) {
+ float rel = (cbuf [i]*100.0)/(float)nfunc;
+ sum += rel;
+ printf (" #calls <= %15u %10u %2.1f%% %2.1f%%\n", 1<<(i+1) - 1, cbuf
+[i], rel, sum);
+ }
}
typedef struct {
