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1764.3.6
by Brian Aker
This includes a query_usage table for looking at performance of previous |
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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*
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* Copyright (C) 2010 Brian Aker
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef PLUGIN_PERFORMANCE_DICTIONARY_QUERY_USAGE_H
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#define PLUGIN_PERFORMANCE_DICTIONARY_QUERY_USAGE_H
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#include "drizzled/session.h" |
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namespace performance_dictionary { |
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#define USAGE_MAX_KEPT 5
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struct query_usage { |
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std::string query; |
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struct rusage start; |
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struct rusage buffer; |
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query_usage() |
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{
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memset(&start, 0, sizeof(struct rusage)); |
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memset(&buffer, 0, sizeof(struct rusage)); |
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}
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void set(const std::string &sql, const struct rusage &arg) |
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{
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if (getrusage(RUSAGE_THREAD, &buffer)) |
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{
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memset(&start, 0, sizeof(struct rusage)); |
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memset(&buffer, 0, sizeof(struct rusage)); |
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return; |
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}
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query= sql.substr(0, 512); |
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start= arg; |
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buffer.ru_utime.tv_sec -= start.ru_utime.tv_sec; |
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buffer.ru_utime.tv_usec -= start.ru_utime.tv_usec; |
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buffer.ru_stime.tv_sec -= start.ru_stime.tv_sec; |
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buffer.ru_stime.tv_usec -= start.ru_stime.tv_usec; |
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buffer.ru_maxrss -= start.ru_maxrss; |
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buffer.ru_ixrss -= start.ru_ixrss; |
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buffer.ru_idrss -= start.ru_idrss; |
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buffer.ru_isrss -= start.ru_isrss; |
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buffer.ru_minflt -= start.ru_minflt; |
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buffer.ru_majflt -= start.ru_majflt; |
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buffer.ru_nswap -= start.ru_nswap; |
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buffer.ru_inblock -= start.ru_inblock; |
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buffer.ru_oublock -= start.ru_oublock; |
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buffer.ru_msgsnd -= start.ru_msgsnd; |
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buffer.ru_msgrcv -= start.ru_msgrcv; |
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buffer.ru_nsignals -= start.ru_nsignals; |
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buffer.ru_nvcsw -= start.ru_nvcsw; |
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buffer.ru_nivcsw -= start.ru_nivcsw; |
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}
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const struct rusage &delta(void) const |
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{
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return buffer; |
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}
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~query_usage() |
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{ } |
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};
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typedef std::list <query_usage> Query_list; |
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class QueryUsage : public drizzled::util::Storable { |
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public: |
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Query_list query_list; |
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QueryUsage() |
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{
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query_list.resize(USAGE_MAX_KEPT); |
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}
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1932.3.2
by Brian Aker
1) Make sure the query string always has an std::string in it. |
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void push(drizzled::Session::QueryString query_string, const struct rusage &arg); |
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1764.3.6
by Brian Aker
This includes a query_usage table for looking at performance of previous |
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Query_list &list(void) |
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{
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return query_list; |
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}
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};
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} /* namespace performance_dictionary */ |
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#endif /* PLUGIN_PERFORMANCE_DICTIONARY_QUERY_USAGE_H */ |