Subject: [Boost-commit] svn:boost r53922 - sandbox/monotonic/libs/monotonic/test
From: christian.schladetsch_at_[hidden]
Date: 2009-06-15 03:24:49
Author: cschladetsch
Date: 2009-06-15 03:24:49 EDT (Mon, 15 Jun 2009)
New Revision: 53922
URL: http://svn.boost.org/trac/boost/changeset/53922
Log:
added graph for bubble sort results
Added:
sandbox/monotonic/libs/monotonic/test/test_bubble_sort.cpp (contents, props changed)
Added: sandbox/monotonic/libs/monotonic/test/test_bubble_sort.cpp
==============================================================================
--- (empty file)
+++ sandbox/monotonic/libs/monotonic/test/test_bubble_sort.cpp 2009-06-15 03:24:49 EDT (Mon, 15 Jun 2009)
@@ -0,0 +1,74 @@
+template <class List>
+void test_bubble_sort_impl(size_t length, List &list)
+{
+ for (size_t n = 0; n < length; ++n)
+ list.push_back(length - n);
+ bool swapped = false;
+ do
+ {
+ swapped = false;
+ typename List::iterator A = list.begin(), B = --list.end();
+ for (--B; A != B; ++A)
+ {
+ typename List::iterator C = A;
+ ++C;
+ if (*A > *C)
+ {
+ std::swap(*A, *C);
+ swapped = true;
+ }
+ }
+ }
+ while (swapped);
+}
+
+pair<double,double> test_bubble_sort(size_t count = 50*1000, size_t length = 20)
+{
+ monotonic::inline_storage<100000> storage;
+ boost::timer mono_timer;
+ for (size_t n = 0; n < count; ++n)
+ {
+ std::list<int, monotonic::allocator<int> > list(storage);
+ test_bubble_sort_impl(length, list);
+ storage.reset();
+ }
+ double mono_total = mono_timer.elapsed();
+
+ boost::timer std_timer;
+ for (size_t n = 0; n < count; ++n)
+ {
+ std::list<int> list;
+ test_bubble_sort_impl(length, list);
+ }
+ double std_total = std_timer.elapsed();
+ return make_pair(mono_total, std_total);
+}
+
+void graph_bubble_sort()
+{
+ const size_t count = 10000;
+ typedef std::map<size_t, pair<double, double> > Results;
+ Results results;
+ for (size_t length = 3; length < 50; length += 10)
+ {
+ results[length] = test_bubble_sort(count, length);
+ }
+ stringstream chart;
+ chart << "http://chart.apis.google.com/chart?chco=FF0000,00FF00&chs=250x100&cht=lc&chd=t:";
+ stringstream first;
+ stringstream second;
+ string comma = "";
+ double m = 0;
+ BOOST_FOREACH(Results::value_type const &result, results)
+ {
+ cout << result.first << '\t' << result.second.first << '\t' << result.second.second << endl;
+ first << comma << result.second.first;
+ second << comma << result.second.second;
+ comma = ",";
+ m = max(m, max(result.second.first, result.second.second));
+ }
+ chart << first.str() << "|" << second.str() << "&chds=0," << m << ",0," << m;
+ cout << chart.str() << endl;
+}
+
+//EOF