Merge 1ed99453dd into 36fdfa2694

Optimized autoconfig for AMD CPUs with < 2 MB L3 cache per thread

src/backend/cpu/CpuBackend.cpp

@@ -352,7 +352,7 @@ void xmrig::CpuBackend::setJob(const Job &job)
     const auto &cpu = d_ptr->controller->config()->cpu();
 
     auto threads = cpu.get(d_ptr->controller->miner(), job.algorithm());
-    if (!d_ptr->threads.empty() && d_ptr->threads.size() == threads.size() && std::equal(d_ptr->threads.begin(), d_ptr->threads.end(), threads.begin())) {
+    if (!d_ptr->threads.empty() && d_ptr->threads.size() == threads.size() && std::equal(d_ptr->threads.begin(), d_ptr->threads.end(), threads.begin()) && d_ptr->algo == job.algorithm()) {
         return;
     }
 

src/backend/cpu/platform/HwlocCpuInfo.cpp

@@ -320,8 +320,13 @@ void xmrig::HwlocCpuInfo::processTopLevelCache(hwloc_obj_t cache, const Algorith
             L2 += l2->attr->cache.size;
             L2_associativity = l2->attr->cache.associativity;
 
-            if (L3_exclusive && l2->attr->cache.size >= scratchpad) {
+            if (L3_exclusive) {
-                extra += scratchpad;
+                if (vendor() == VENDOR_AMD) {
+                    extra += std::min<size_t>(l2->attr->cache.size, scratchpad);
+                }
+                else if (l2->attr->cache.size >= scratchpad) {
+                    extra += scratchpad;
+                }
             }
         }
     }