From cd00719122da89a8e654970b4aedd699d4fda8c6 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Thu, 9 Jan 2020 18:04:25 +0100
Subject: [PATCH] [dxvk] Tweak number of pipeline compiler threads

Gives some 6-core and 8-core CPUs a bit more breathing room, while
also supporting up to 32 workers instead of just 16 to leverage
the new high core count Ryzen CPUs.
---
 src/dxvk/dxvk_state_cache.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/dxvk/dxvk_state_cache.cpp b/src/dxvk/dxvk_state_cache.cpp
index a400f423..f8ccf65b 100644
--- a/src/dxvk/dxvk_state_cache.cpp
+++ b/src/dxvk/dxvk_state_cache.cpp
@@ -154,12 +154,10 @@ namespace dxvk {
 
     // Use half the available CPU cores for pipeline compilation
     uint32_t numCpuCores = dxvk::thread::hardware_concurrency();
-    uint32_t numWorkers  = numCpuCores > 8
-      ? numCpuCores * 3 / 4
-      : numCpuCores * 1 / 2;
+    uint32_t numWorkers  = ((std::max(1u, numCpuCores) - 1) * 5) / 7;
 
     if (numWorkers <  1) numWorkers =  1;
-    if (numWorkers > 16) numWorkers = 16;
+    if (numWorkers > 32) numWorkers = 32;
 
     if (device->config().numCompilerThreads > 0)
       numWorkers = device->config().numCompilerThreads;