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SPU LLVM: More compilation threads

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Eladash 2024-03-07 18:52:25 +02:00 • committed by Elad.Ash
parent 719dafa679
commit adc8a360ad
3 changed files with 48 additions and 3 deletions
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22
rpcs3/Emu/Cell/SPUThread.cpp
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@ -5253,10 +5253,12 @@ s64 spu_thread::get_ch_value(u32 ch)
}
}
const bool seed = (utils::get_tsc() >> 8) % 100;
#ifdef __linux__
const bool reservation_busy_waiting = false;
#else
const bool reservation_busy_waiting = ((utils::get_tsc() >> 8) % 100 + ((raddr == spurs_addr) ? 50 : 0)) < g_cfg.core.spu_reservation_busy_waiting_percentage;
const bool reservation_busy_waiting = (seed + ((raddr == spurs_addr) ? 50 : 0)) < g_cfg.core.spu_reservation_busy_waiting_percentage;
#endif
for (; !events.count; events = get_events(mask1 & ~SPU_EVENT_LR, true, true))
@ -5281,6 +5283,23 @@ s64 spu_thread::get_ch_value(u32 ch)
// Don't busy-wait with TSX - memory is sensitive
if (g_use_rtm || !reservation_busy_waiting)
{
if (u32 work_count = g_spu_work_count)
{
const u32 true_free = utils::sub_saturate<u32>(utils::get_thread_count(), 10);
if (work_count > true_free)
{
// SPU thread count estimation
const u32 thread_count = (group ? g_raw_spu_ctr + group->max_num : g_raw_spu_ctr + 3);
if (thread_count && seed % thread_count < work_count - true_free)
{
// Make the SPU wait longer for other threads to do the work
thread_ctrl::wait_for(200);
continue;
}
}
}
#ifdef __linux__
vm::reservation_notifier(raddr).wait(rtime, atomic_wait_timeout{50'000});
#else
@ -6795,3 +6814,4 @@ void fmt_class_string<spu_channel_4_t>::format(std::string& out, u64 arg)
DECLARE(spu_thread::g_raw_spu_ctr){};
DECLARE(spu_thread::g_raw_spu_id){};
DECLARE(spu_thread::g_spu_work_count){};