[ATTN: procps maintainer] RealPageSize

Marco Atzeri marco.atzeri@gmail.com
Thu May 4 16:27:00 GMT 2017


On 04/05/2017 17:00, Marty Shannon wrote:
> This fix for php (posted by ricardohenrylee@gmail.com) should be
> applied to the code for "top"; it (and /usr/bin/time -v) think the
> page size is actually 64k, and reports RESident size as 16 times what
> it should be.
>
>  # if HAVE_UNISTD_H
>  #  include <unistd.h>
>  #  if defined(_SC_PAGESIZE)
> +#   ifdef __CYGWIN__
> +#    define REAL_PAGE_SIZE 4096
> +#   else
>  #    define REAL_PAGE_SIZE sysconf(_SC_PAGESIZE);
> +#   endif
>  #  elif defined(_SC_PAGE_SIZE)
>  #    define REAL_PAGE_SIZE sysconf(_SC_PAGE_SIZE);
>  #  endif
>
> Cheers,
> Marty
>

How is top measuring the memory of process ?

   /proc/<pid>/statm

should report the correct info in
sysconf(_SC_PAGESIZE) = 64K units.


https://cygwin.com/ml/cygwin-patches/2016-q4/msg00009.html

Regards
Marco

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