Re: [PATCH] perf top: Add a visual cue for toggle zeroing of samples

From: taeung
Date: Tue Oct 07 2014 - 03:38:26 EST


Thanks for answering.

I resend a patch according to your advices.

And I also added the stdio output to the patch as below.

If you have time and check the patch I resend,
I'd appreciate it.

Thanks,
Taeung

On 10/07/2014 02:26 PM, Namhyung Kim wrote:
Hi Taeung,

On Sun, 5 Oct 2014 15:49:34 +0900, Taeung Song wrote:
When 'perf top' is run, one can't easily find a difference
between -z option and normal output.
So I added a visual cue to know whether it is the zeroing or not.

[SNIP]
+static int hists__browser_title(struct hists *hists,
+ struct hist_browser_timer *hbt,
+ char *bf,
+ size_t size)
You don't need to align arguments like this.


{
char unit;
int printed;
@@ -1256,6 +1268,14 @@ static int hists__browser_title(struct hists *hists, char *bf, size_t size)
if (dso)
printed += scnprintf(bf + printed, size - printed,
", DSO: %s", dso->short_name);
+ if (!is_report_browser(hbt)) {
+ struct perf_top *top = hbt->arg;
+
+ if (top->zero)
+ printed += scnprintf(bf + printed, size - printed,
+ ", [z]", "");
It seems the final empty string can go away. And personally I'd like to
get rid of "," before "[z]" also.

Otherwise looks good to me. Could you please take a look at the stdio
output too?

Thanks,
Namhyung


+ }
+
return printed;
}
@@ -1267,12 +1287,6 @@ static inline void free_popup_options(char **options, int n)
zfree(&options[i]);
}
-/* Check whether the browser is for 'top' or 'report' */
-static inline bool is_report_browser(void *timer)
-{
- return timer == NULL;
-}
-
/*
* Only runtime switching of perf data file will make "input_name" point
* to a malloced buffer. So add "is_input_name_malloced" flag to decide

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/