From 66e401d668a1f18020ba600546e5650c5edb0578 Mon Sep 17 00:00:00 2001 From: Andreas Kling Date: Thu, 2 May 2019 18:11:36 +0200 Subject: [PATCH] LibC: Tune the number of ChunkedBlocks we keep around empty. At the moment, both mmap() and munmap() are kind of slow. Compiling with GCC was suffering quite badly from munmap() slowness, so let's keep a few more of the ChunkedBlocks around after they are empty, to avoid having to munmap. --- LibC/malloc.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/LibC/malloc.cpp b/LibC/malloc.cpp index 633ec71f3f..d79a918474 100644 --- a/LibC/malloc.cpp +++ b/LibC/malloc.cpp @@ -15,7 +15,7 @@ #define MAGIC_BIGALLOC_HEADER 0x42697267 #define PAGE_ROUND_UP(x) ((((size_t)(x)) + PAGE_SIZE-1) & (~(PAGE_SIZE-1))) -static const size_t number_of_chunked_blocks_to_keep_around_per_size_class = 4; +static const size_t number_of_chunked_blocks_to_keep_around_per_size_class = 32; static bool s_log_malloc = false; static bool s_scrub_malloc = true;