Re: Better LWLocks with compare-and-swap (9.4) - Mailing list pgsql-hackers

On 2013-05-20 09:31:15 -0300, Dickson S. Guedes wrote:
> Hum, I was supposing that I was doing something wrong but I'm getting
> the same result as before even using your test case and my results is
> still different from yours:
> 
> 
> + 71,27% postgres postgres         [.] AtEOXact_Buffers
> +  7,67% postgres postgres         [.] AtEOXact_CatCache
> +  6,30% postgres postgres         [.] AllocSetCheck
> +  5,34% postgres libc-2.12.so     [.] __mcount_internal
> +  2,14% postgres [kernel.kallsyms][k] activate_page

That looks like you have configured with --enable-cassert and probably
also --enable-profiling? The former will give completely distorted
performance results...

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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