Ecosystem/xmrig
Ecosystem/xmrig
1
0
Fork 0
mirror of https://github.com/xmrig/xmrig.git synced 2024-12-23 12:09:22 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Force 2 MB pages size in allocateLargePagesMemory() on Linux

Browse source
This commit is contained in:
SChernykh 2020-07-31 09:55:49 +02:00
parent cdb6287d89
commit 838cc08680
1 changed files with 11 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
src/crypto/common/VirtualMemory_unix.cpp
View file

@ -82,7 +82,17 @@ void *xmrig::VirtualMemory::allocateLargePagesMemory(size_t size)
# elif defined(__FreeBSD__)
void *mem = mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_ALIGNED_SUPER | MAP_PREFAULT_READ, -1, 0);
# else
void *mem = mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, 0, 0);
# if defined(MAP_HUGE_2MB)
constexpr int flag_2mb = MAP_HUGE_2MB;
# elif defined(MAP_HUGE_SHIFT)
constexpr int flag_2mb = (21 << MAP_HUGE_SHIFT);
# else
constexpr int flag_2mb = 0;
# endif
void *mem = mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE | flag_2mb, 0, 0);
# endif
return mem == MAP_FAILED ? nullptr : mem;