1 #ifndef _TCUCPUWARMUP_HPP
2 #define _TCUCPUWARMUP_HPP
3 /*-------------------------------------------------------------------------
4 * drawElements Quality Program Tester Core
5 * ----------------------------------------
7 * Copyright 2014 The Android Open Source Project
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
23 * \brief CPU warm-up utility, used to counteract CPU throttling.
24 *//*--------------------------------------------------------------------*/
29 //! Does some dummy calculations to try and get the CPU working at full speed.
30 void warmupCPU (void);
32 namespace warmupCPUInternal
35 // \note Used in an attempt to prevent compiler from doing optimizations. Not supposed to be touched elsewhere.
40 Dummy (void) : m_v(new float) {}
41 ~Dummy (void) { delete m_v; }
43 volatile float* volatile m_v;
46 extern volatile Dummy g_dummy;
52 #endif // _TCUCPUWARMUP_HPP