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/*
This file is part of GNUnet.
Copyright (C) 2018 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file util/benchmark.h
* @brief benchmarking for various operations
* @author Florian Dold <flo@dold.me>
*/
#ifndef BENCHMARK_H_
#define BENCHMARK_H_
#include "gnunet_time_lib.h"
/**
* Maximum length of URLs considered for benchmarking.
* Shorter URLs are simply truncated.
*/
#define MAX_BENCHMARK_URL_LEN 128
/**
* Struct for benchmark data for one URL.
*/
struct UrlRequestData
{
/**
* Request URL, truncated (but 0-terminated).
*/
char request_url[MAX_BENCHMARK_URL_LEN];
/**
* HTTP status code.
*/
unsigned int status;
/**
* How often was the URL requested?
*/
uint64_t count;
/**
* Total time spent requesting this URL.
*/
struct GNUNET_TIME_Relative time;
/**
* Slowest time to response.
*/
struct GNUNET_TIME_Relative time_max;
/**
* Fastest time to response.
*/
struct GNUNET_TIME_Relative time_min;
};
/**
* Thread-local struct for benchmarking data.
*/
struct BenchmarkData
{
/**
* Number of eddsa_sign operations.
*/
uint64_t eddsa_sign_count;
/**
* Time spent in eddsa_sign.
*/
struct GNUNET_TIME_Relative eddsa_sign_time;
struct UrlRequestData *urd;
unsigned int urd_len;
unsigned int urd_capacity;
};
/**
* Acquire the benchmark data for the current thread, allocate if necessary.
* Installs handler to collect the benchmark data on thread termination.
*
* @return benchmark data for the current thread
*/
struct BenchmarkData *
get_benchmark_data (void);
/**
* Get benchmark data for a URL. If the URL is too long, it's truncated
* before looking up the correspoding benchmark data.
*
* Statistics are bucketed by URL and status code.
*
* @param url url to get request data for
* @param status http status code
*/
struct UrlRequestData *
get_url_benchmark_data (char *url, unsigned int status);
#endif /* BENCHMARK_H_ */
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