Re: [PATCH v4 5/5] perf report: Show branch type in callchain entry

From: Jin, Yao
Date: Tue Apr 18 2017 - 20:32:36 EST




On 4/19/2017 2:53 AM, Jiri Olsa wrote:
On Wed, Apr 12, 2017 at 06:21:06AM +0800, Jin Yao wrote:

SNIP

static int counts_str_build(char *bf, int bfsize,
u64 branch_count, u64 predicted_count,
u64 abort_count, u64 cycles_count,
- u64 iter_count, u64 samples_count)
+ u64 iter_count, u64 samples_count,
+ struct branch_type_stat *brtype_stat)
{
- double predicted_percent = 0.0;
- const char *null_str = "";
- char iter_str[32];
- char cycle_str[32];
- char *istr, *cstr;
u64 cycles;
+ int printed, i = 0;
if (branch_count == 0)
return scnprintf(bf, bfsize, " (calltrace)");
+ printed = branch_type_str(brtype_stat, bf, bfsize);
+ if (printed)
+ i++;
+
cycles = cycles_count / branch_count;
+ if (cycles) {
+ if (i++)
+ printed += scnprintf(bf + printed, bfsize - printed,
+ " cycles:%" PRId64 "", cycles);
+ else
+ printed += scnprintf(bf + printed, bfsize - printed,
+ " (cycles:%" PRId64 "", cycles);
+ }
if (iter_count && samples_count) {
- if (cycles > 0)
- scnprintf(iter_str, sizeof(iter_str),
- " iterations:%" PRId64 "",
- iter_count / samples_count);
+ if (i++)
+ printed += scnprintf(bf + printed, bfsize - printed,
+ " iterations:%" PRId64 "",
+ iter_count / samples_count);
else
- scnprintf(iter_str, sizeof(iter_str),
- "iterations:%" PRId64 "",
- iter_count / samples_count);
- istr = iter_str;
could you please put the change from using iter_str
to bf into separate patch before the actual branch
display change?

it's hard to see if anything is broken ;-)

thanks,
jirka
Got it, I will separate the patches.

Thanks
Jin Yao