diff options
| -rw-r--r-- | src/vppinfra/CMakeLists.txt | 7 | ||||
| -rw-r--r-- | src/vppinfra/config.h.in | 2 | ||||
| -rw-r--r-- | src/vppinfra/vec.c | 4 |
3 files changed, 13 insertions, 0 deletions
diff --git a/src/vppinfra/CMakeLists.txt b/src/vppinfra/CMakeLists.txt index 3998ae6f6a6..7723e6bad5d 100644 --- a/src/vppinfra/CMakeLists.txt +++ b/src/vppinfra/CMakeLists.txt @@ -18,6 +18,13 @@ enable_language(ASM) ############################################################################## set(LOG2_CACHE_LINE_BYTES ${VPP_LOG2_CACHE_LINE_SIZE}) +option(VPP_VECTOR_GROW_BY_ONE "Vectors grow by one, instead of 3/2" OFF) +if(VPP_VECTOR_GROW_BY_ONE) + set(VECTOR_GROW_BY_ONE 1) +else(VPP_VECTOR_GROW_BY_ONE) + set(VECTOR_GROW_BY_ONE 0) +endif(VPP_VECTOR_GROW_BY_ONE) + configure_file( ${CMAKE_SOURCE_DIR}/vppinfra/config.h.in ${CMAKE_BINARY_DIR}/vppinfra/config.h diff --git a/src/vppinfra/config.h.in b/src/vppinfra/config.h.in index 1a8e03184a9..7aad027a8b6 100644 --- a/src/vppinfra/config.h.in +++ b/src/vppinfra/config.h.in @@ -21,4 +21,6 @@ #endif #define CLIB_TARGET_TRIPLET "@CMAKE_C_COMPILER_TARGET@" +#define CLIB_VECTOR_GROW_BY_ONE @VECTOR_GROW_BY_ONE@ + #endif diff --git a/src/vppinfra/vec.c b/src/vppinfra/vec.c index 2ee78952d19..05a557ebb54 100644 --- a/src/vppinfra/vec.c +++ b/src/vppinfra/vec.c @@ -95,9 +95,13 @@ vec_resize_allocate_memory (void *v, return v; } +#if CLIB_VECTOR_GROW_BY_ONE > 0 + new_alloc_bytes = data_bytes; +#else new_alloc_bytes = (old_alloc_bytes * 3) / 2; if (new_alloc_bytes < data_bytes) new_alloc_bytes = data_bytes; +#endif new = clib_mem_alloc_aligned_at_offset (new_alloc_bytes, data_align, |