RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

arm: Use CPU_TIMESTAMP_USE_STRUCT_TIMESPEC

Browse Source 
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 ARM.
This commit is contained in:
Sebastian Huber
2014-11-25 15:42:56 +01:00
parent 44da98f08f
commit 46689a1ee1
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
cpukit/score/cpu/arm/rtems/score/cpu.h
View File

@@ -149,7 +149,7 @@
/* XXX Why 32? */ /* XXX Why 32? */
#define CPU_STRUCTURE_ALIGNMENT __attribute__ ((aligned (32))) #define CPU_STRUCTURE_ALIGNMENT __attribute__ ((aligned (32)))
#define CPU_TIMESTAMP_USE_INT64_INLINE TRUE #define CPU_TIMESTAMP_USE_STRUCT_TIMESPEC TRUE
/* /*
* The interrupt mask disables only normal interrupts (IRQ). * The interrupt mask disables only normal interrupts (IRQ).