diff options
| author | Carsten Haitzler (Rasterman) <raster@rasterman.com> | 2016-10-28 14:50:05 +0900 |
|---|---|---|
| committer | Carsten Haitzler (Rasterman) <raster@rasterman.com> | 2016-10-28 22:58:36 +0900 |
| commit | 973eaedf51a8ab0f9881c1fb900850dd8475bbf7 (patch) | |
| tree | cfdaae6c7a0da526c63ad82463d294d81d303778 /m4 | |
| parent | ecc3e2fa516d937f65a24ec45c9fa62d8c9b491d (diff) | |
improve responsivness of timer sleeping threads for vsync with prctl
prctl allows us on some platforms to request a thread be woken up more
agressively e.g. due to a timeout bu setting timerslack. since we use
a dedicated thread just for vsync events, this is a very good idea to
ask the kernel to be as exact as possible for this thread as it only
wakes up once per frame (or should only) and accuracy is important. so
use this.
also improve prctl checks to be more explicit in configure.ac and use
these ifdefs in ecore exe too where prctl is used as well.
@feature
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/efl_check_funcs.m4 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/m4/efl_check_funcs.m4 b/m4/efl_check_funcs.m4 index 39fb5ee5ad..b44f20bc55 100644 --- a/m4/efl_check_funcs.m4 +++ b/m4/efl_check_funcs.m4 @@ -288,6 +288,17 @@ sz = getpagesize(); ]]) ]) +dnl _EFL_CHECK_FUNC_PRCTL is for internal use +dnl _EFL_CHECK_FUNC_PRCTL(EFL, VARIABLE) +AC_DEFUN([_EFL_CHECK_FUNC_PRCTL], +[EFL_FIND_LIB_FOR_CODE([$1], [], [$2], [[ +#include <sys/prctl.h> +]], +[[ +prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0); +]]) +]) + dnl Macro that checks function availability dnl dnl EFL_CHECK_FUNC(EFL, FUNCTION) |