> On 23 Jun 2017, at 00:08, Andres Freund wrote:
>
> Hi,
>
> At pgcon some people were talking about the difficulty of instrumenting
> the time actually spent waiting for lwlocks and related measurements.
> I'd mentioned that linux these days provides infrastructure to measure
> such things in
Hi,
At pgcon some people were talking about the difficulty of instrumenting
the time actually spent waiting for lwlocks and related measurements.
I'd mentioned that linux these days provides infrastructure to measure
such things in unmodified binaries.
Attached is a prototype of a script that mea