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spu: Speed hacks - Do not starve PPU threads

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optionally hint to the OS scheduler to give less attention to SPUs

ui: Add speed 'hacks' as configurable options
This commit is contained in:
kd-11 2017-04-23 23:09:27 +03:00
parent 4b5a30f53d
commit df7b466656
7 changed files with 82 additions and 2 deletions
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31
rpcs3/Emu/Cell/SPUThread.cpp
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@ -20,6 +20,8 @@
#include <cmath>
#include <cfenv>
#include <atomic>
#include <thread>
#ifdef _MSC_VER
bool operator ==(const u128& lhs, const u128& rhs)
@ -49,10 +51,14 @@ cfg::map_entry<spu_decoder_type> g_cfg_spu_decoder(cfg::root.core, "SPU Decoder"
});
cfg::bool_entry g_cfg_spu_debug(cfg::root.core, "SPU Debug");
cfg::bool_entry g_cfg_core_bind_spu_cores(cfg::root.core, "Bind SPU threads to secondary cores");
cfg::bool_entry g_cfg_core_lower_spu_priority(cfg::root.core, "Lower SPU thread priority");
const spu_decoder<spu_interpreter_precise> s_spu_interpreter_precise;
const spu_decoder<spu_interpreter_fast> s_spu_interpreter_fast;
std::atomic<u64> g_num_spu_threads = { 0ull };
void spu_int_ctrl_t::set(u64 ints)
{
// leave only enabled interrupts
@ -134,6 +140,29 @@ spu_imm_table_t::spu_imm_table_t()
}
}
void SPUThread::on_spawn()
{
if (g_cfg_core_bind_spu_cores)
{
//Get next secondary core number
auto core_count = std::thread::hardware_concurrency();
if (core_count > 0 && core_count <= 16)
{
auto half_count = core_count / 2;
auto assigned_secondary_core = ((g_num_spu_threads % half_count) * 2) + 1;
set_ideal_processor_core(assigned_secondary_core);
}
}
if (g_cfg_core_lower_spu_priority)
{
set_native_priority(-1);
}
g_num_spu_threads++;
}
void SPUThread::on_init(const std::shared_ptr<void>& _this)
{
if (!offset)
@ -208,7 +237,7 @@ extern thread_local std::string(*g_tls_log_prefix)();
void SPUThread::cpu_task()
{
std::fesetround(FE_TOWARDZERO);
if (g_cfg_spu_decoder.get() == spu_decoder_type::asmjit)
{
if (!spu_db) spu_db = fxm::get_always<SPUDatabase>();