diff options
Diffstat (limited to 'allocators')
| -rw-r--r-- | allocators/glibc_2.28_no_passive_falsesharing_fancy.patch | 25 | ||||
| -rw-r--r-- | allocators/glibcs.py | 37 |
2 files changed, 62 insertions, 0 deletions
diff --git a/allocators/glibc_2.28_no_passive_falsesharing_fancy.patch b/allocators/glibc_2.28_no_passive_falsesharing_fancy.patch new file mode 100644 index 0000000..044909b --- /dev/null +++ b/allocators/glibc_2.28_no_passive_falsesharing_fancy.patch @@ -0,0 +1,25 @@ +diff --git a/malloc/malloc.c b/malloc/malloc.c +index 27cf6137c2..fbd311801d 100644 +--- a/malloc/malloc.c ++++ b/malloc/malloc.c +@@ -4172,6 +4172,12 @@ _int_free (mstate av, mchunkptr p, int have_lock) + + #if USE_TCACHE + { ++ /* Check if chunk is from our own arena or false sharing is not possible ++ because the chunk is cache line aligned and it's size is a multiple ++ of a cacheline */ ++ if (av == thread_arena ++ || (((size_t)p & 63) == 0 && ((size + 2*SIZE_SZ) % 64) == 0)) ++ { + size_t tc_idx = csize2tidx (size); + if (tcache != NULL && tc_idx < mp_.tcache_bins) + { +@@ -4201,6 +4207,7 @@ _int_free (mstate av, mchunkptr p, int have_lock) + return; + } + } ++ } + } + #endif + diff --git a/allocators/glibcs.py b/allocators/glibcs.py new file mode 100644 index 0000000..891bf15 --- /dev/null +++ b/allocators/glibcs.py @@ -0,0 +1,37 @@ +import os +import subprocess + +from src.allocator import * +from src.allocator import Allocator as Alloc +from src.allocator import Allocator_Sources as Alloc_Src + +optimisation_flag = "-O2" + +glibc_src = Alloc_Src("glibc", + retrieve_cmds=["git clone git://sourceware.org/git/glibc.git"], + prepare_cmds=["git checkout release/2.29/master"], + reset_cmds=["git stash"]) + +glibc = Alloc("glibc", sources=glibc_src, + build_cmds=["mkdir -p glibc-build", + "cd glibc-build; {srcdir}/configure --prefix={dir}", + "cd glibc-build; make", + "cd glibc-build; make install"], + cmd_prefix="{dir}/lib/ld-linux-x86-64.so.2 --library-path {dir}/lib:"+library_path) + +glibc_notc = Alloc("glibc_notc", sources=glibc_src, + build_cmds=["mkdir -p glibc-build", + "cd glibc-build; {srcdir}/configure --prefix={dir} --disable-experimental-malloc", + "cd glibc-build; make", + "cd glibc-build; make install"], + cmd_prefix="{dir}/lib/ld-linux-x86-64.so.2 --library-path {dir}/lib:"+library_path) + +glibc_nofs = patch_alloc("glibc_nofs", glibc, + ["allocators/glibc_2.28_no_passive_falsesharing.patch"]) + +glibc_nofs_fancy = patch_alloc("glibc_nofs_fancy", glibc, + ["allocators/glibc_2.28_no_passive_falsesharing_fancy.patch"]) + +allocators_to_build = [glibc, glibc_notc, glibc_nofs, glibc_nofs_fancy] + +allocators = {a.name: a.build() for a in allocators_to_build} |