diff options
| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-09-23 07:57:56 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-09-23 10:46:36 +0200 |
| commit | 30e5e765408ccddc82394c5dc4e44c1732b74c46 (patch) | |
| tree | ab116aea9abdea3198ecdb6838c3361d614c46c9 | |
| parent | score: Delete Thread_Wait_information::Block2n (diff) | |
| download | rtems-30e5e765408ccddc82394c5dc4e44c1732b74c46.tar.bz2 | |
powerpc: Use CPU_TIMESTAMP_USE_STRUCT_TIMESPEC
Converting 64-bit nanoseconds values into the common struct timeval or
struct timespec formats requires a 64-bit division to get the seconds
value. Performance analysis of high network loads revealed that this is
too costly on PowerPC.
| -rw-r--r-- | cpukit/score/cpu/powerpc/rtems/score/cpu.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/rtems/score/cpu.h index 2df961243b..15854d54aa 100644 --- a/cpukit/score/cpu/powerpc/rtems/score/cpu.h +++ b/cpukit/score/cpu/powerpc/rtems/score/cpu.h @@ -144,7 +144,7 @@ extern "C" { #define CPU_STRUCTURE_ALIGNMENT \ __attribute__ ((aligned (PPC_STRUCTURE_ALIGNMENT))) -#define CPU_TIMESTAMP_USE_INT64_INLINE TRUE +#define CPU_TIMESTAMP_USE_STRUCT_TIMESPEC TRUE /* * Define what is required to specify how the network to host conversion |