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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/* Copyright (c) 2011 Facebook
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR(S) DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL AUTHORS BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "include/buffer.h"
using namespace ceph;
namespace PerfHelper {
/// Flush the CPU data cache by reading and writing 100MB of new data.
void flush_cache()
{
int hundredMegs = 100 * 1024 * 1024;
volatile char* block = new char[hundredMegs];
for (int i = 0; i < hundredMegs; i++)
block[i] = 1;
delete[] block;
}
/// Used in functionCall().
uint64_t plus_one(uint64_t x)
{
return x + 1;
}
/// Used in throwIntNL.
void throw_int()
{
throw 0;
}
/// Used in throwExceptionNL.
void throw_end_of_buffer()
{
throw buffer::end_of_buffer();
}
}
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