Re: [PATCH 14/14] perf diff: Display empty space for non paired samples

From: Namhyung Kim
Date: Thu Oct 04 2012 - 02:16:48 EST


On Thu, 27 Sep 2012 13:09:35 +0200, Jiri Olsa wrote:
> Currently in 'Baseline' and 'Period Base' columns zero values are
> displayed in case no pair is found for the sample. This might be
> confusing, using empty space instead.
[snip]
> @@ -246,8 +249,12 @@ static int hpp__entry_period_baseline(struct perf_hpp *hpp, struct hist_entry *h
> u64 period = pair ? pair->period : 0;
> const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%12" PRIu64;
>
> - return scnprintf(hpp->buf, hpp->size, fmt, period);
> + if (pair)
> + return scnprintf(hpp->buf, hpp->size, fmt, period);
> + else
> + return scnprintf(hpp->buf, hpp->size, " ");

It seems that it's not needed when -t (field separator) switch is given.

Thanks,
Namhyung
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