Cheri-research/snmalloc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge pull request #124 from microsoft/alignment

Browse Source 
Make Large allocations naturally aligned
This commit is contained in:
Matthew Parkinson
2020-02-05 14:40:13 +00:00
committed by GitHub
parent f2c22ceed6 de64a8c0c2
commit 1d72024a9f
14 changed files with 133 additions and 117 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/test/func/fixed_region/fixed_region.cc
View File

@@ -32,8 +32,12 @@ int main()
{
MemoryProviderStateMixin<DefaultPal> mp;
size_t size = 1ULL << 28;
oe_base = mp.reserve<true>(&size, 0);
// 28 is large enough to produce a nested allocator.
// It is also large enough for the example to run in.
// For 1MiB superslabs, SUPERSLAB_BITS + 4 is not big enough for the example.
size_t large_class = 28 - SUPERSLAB_BITS;
size_t size = 1ULL << (SUPERSLAB_BITS + large_class);
oe_base = mp.reserve<true>(large_class);
oe_end = (uint8_t*)oe_base + size;
std::cout << "Allocated region " << oe_base << " - " << oe_end << std::endl;

3
src/test/func/malloc/malloc.cc
View File

@@ -108,7 +108,8 @@ int main(int argc, char** argv)
test_posix_memalign((size_t)-1, 0, EINVAL, true);
test_posix_memalign(OS_PAGE_SIZE, sizeof(uintptr_t) / 2, EINVAL, true);
for (size_t align = sizeof(uintptr_t); align <= SUPERSLAB_SIZE; align <<= 1)
for (size_t align = sizeof(uintptr_t); align <= SUPERSLAB_SIZE * 8;
align <<= 1)
{
for (snmalloc::sizeclass_t sc = 0; sc < NUM_SIZECLASSES; sc++)
{

8
src/test/func/two_alloc_types/main.cc
View File

@@ -45,8 +45,12 @@ int main()
MemoryProviderStateMixin<DefaultPal> mp;
size_t size = 1ULL << 26;
oe_base = mp.reserve<true>(&size, 1);
// 26 is large enough to produce a nested allocator.
// It is also large enough for the example to run in.
// For 1MiB superslabs, SUPERSLAB_BITS + 2 is not big enough for the example.
size_t large_class = 26 - SUPERSLAB_BITS;
size_t size = 1ULL << (SUPERSLAB_BITS + large_class);
oe_base = mp.reserve<true>(large_class);
oe_end = (uint8_t*)oe_base + size;
std::cout << "Allocated region " << oe_base << " - " << oe_end << std::endl;