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Code Issues Releases Wiki Activity

Expand thread affinity mask to u64

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Also fix and note __APPLE__ path.
This commit is contained in:
Nekotekina 2019-07-20 15:57:23 +03:00
parent e2574ff100
commit 4e4c896136
2 changed files with 19 additions and 11 deletions
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26
Utilities/Thread.cpp
View File

@ -2002,13 +2002,13 @@ void thread_ctrl::detect_cpu_layout()
}
}
u16 thread_ctrl::get_affinity_mask(thread_class group)
u64 thread_ctrl::get_affinity_mask(thread_class group)
{
detect_cpu_layout();
if (const auto thread_count = std::thread::hardware_concurrency())
{
const u16 all_cores_mask = thread_count < 16 ? (u16)(~(UINT16_MAX << thread_count)): UINT16_MAX;
const u64 all_cores_mask = thread_count < 64 ? UINT64_MAX >> (64 - thread_count): UINT64_MAX;
switch (g_native_core_layout)
{
@ -2019,7 +2019,7 @@ u16 thread_ctrl::get_affinity_mask(thread_class group)
}
case native_core_arrangement::amd_ccx:
{
u16 spu_mask, ppu_mask, rsx_mask;
u64 spu_mask, ppu_mask, rsx_mask;
if (thread_count >= 16)
{
// Threadripper, R7
@ -2077,7 +2077,7 @@ u16 thread_ctrl::get_affinity_mask(thread_class group)
}
}
return UINT16_MAX;
return UINT64_MAX;
}
void thread_ctrl::set_native_priority(int priority)
@ -2113,25 +2113,33 @@ void thread_ctrl::set_native_priority(int priority)
#endif
}
void thread_ctrl::set_thread_affinity_mask(u16 mask)
void thread_ctrl::set_thread_affinity_mask(u64 mask)
{
#ifdef _WIN32
HANDLE _this_thread = GetCurrentThread();
SetThreadAffinityMask(_this_thread, (DWORD_PTR)mask);
SetThreadAffinityMask(_this_thread, mask);
#elif __APPLE__
thread_affinity_policy_data_t policy = { static_cast<integer_t>(mask) };
// Supports only one core
thread_affinity_policy_data_t policy = { static_cast<integer_t>(utils::cnttz64(mask)) };
thread_port_t mach_thread = pthread_mach_thread_np(pthread_self());
thread_policy_set(mach_thread, THREAD_AFFINITY_POLICY, (thread_policy_t)&policy, 1);
#elif defined(__linux__) || defined(__DragonFly__) || defined(__FreeBSD__)
cpu_set_t cs;
CPU_ZERO(&cs);
for (u32 core = 0; core < 16u; ++core)
for (u32 core = 0; core < 64u; ++core)
{
if ((u32)mask & (1u << core))
const u64 shifted = mask >> core;
if (shifted & 1)
{
CPU_SET(core, &cs);
}
if (shifted <= 1)
{
break;
}
}
pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cs);

4
Utilities/Thread.h
View File

@ -258,13 +258,13 @@ public:
static void detect_cpu_layout();
// Returns a core affinity mask. Set whether to generate the high priority set or not
static u16 get_affinity_mask(thread_class group);
static u64 get_affinity_mask(thread_class group);
// Sets the native thread priority
static void set_native_priority(int priority);
// Sets the preferred affinity mask for this thread
static void set_thread_affinity_mask(u16 mask);
static void set_thread_affinity_mask(u64 mask);
// Spawn a detached named thread
template <typename F>