On 8/15/2019 9:23 PM, Jiri Olsa wrote:
On Tue, Aug 13, 2019 at 03:30:37PM +0800, Jin Yao wrote:
This patch prints the stddev and hist for the cycles diff of
program block. It can help us to understand if the cycles
is noisy or not.
This patch is inspired by Andi Kleen's patch
https://lwn.net
On 8/15/2019 9:22 PM, Jiri Olsa wrote:
On Tue, Aug 13, 2019 at 03:30:37PM +0800, Jin Yao wrote:
SNIP
static void
hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size)
{
@@ -1662,6 +1794,10 @@ static void data__hpp_register(struct data__file *d, int
idx)
On Tue, Aug 13, 2019 at 03:30:37PM +0800, Jin Yao wrote:
> This patch prints the stddev and hist for the cycles diff of
> program block. It can help us to understand if the cycles
> is noisy or not.
>
> This patch is inspired by Andi Kleen's patch
> https://lwn.net/Articles/600471/
now that we ha
On Tue, Aug 13, 2019 at 03:30:37PM +0800, Jin Yao wrote:
SNIP
> static void
> hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size)
> {
> @@ -1662,6 +1794,10 @@ static void data__hpp_register(struct data__file *d,
> int idx)
> fmt->color = hpp__color_cycles;
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