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Add test of pbd/xml++.h API performance with three file sizes

Generate, write and then read three Session like XML files to test the
performance of changes made to pbd/xml++.h API
This commit is contained in:
Tim Mayberry 2016-09-24 08:31:20 +10:00
parent 4b2987d0f2
commit a4b65212c9
2 changed files with 233 additions and 0 deletions

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@ -2,7 +2,9 @@
#include <glib.h>
#include "pbd/gstdio_compat.h"
#include "pbd/xml++.h"
#include <stdint.h>
#include <unistd.h>
#include <stdlib.h>
@ -10,6 +12,8 @@
#include <fcntl.h>
#endif
#include <sstream>
#include <glibmm/miscutils.h>
#include <glibmm/fileutils.h>
#include <glibmm/convert.h>
@ -17,6 +21,7 @@
#include <libxml/xpath.h>
#include "pbd/file_utils.h"
#include "pbd/timing.h"
#include "test_common.h"
@ -77,3 +82,225 @@ XMLTest::testXMLFilenameEncoding ()
CPPUNIT_ASSERT (write_xml (output_path));
}
}
static const char * const root_node_name = "Session";
static const char * const child_node_name = "Child";
static const char * const grandchild_node_name = "GrandChild";
static const char * const great_grandchild_node_name = "GreatGrandChild";
std::vector<std::pair<std::string, std::string> >
get_test_properties ()
{
std::vector<std::pair<std::string, std::string> > props;
props.push_back (std::make_pair ("id", "1234567890"));
props.push_back (std::make_pair ("name", "Awesome Name"));
props.push_back (std::make_pair ("type", "Human"));
props.push_back (std::make_pair ("flags", "MustExist,IsGodLike,HasFabulousHair"));
props.push_back (std::make_pair ("muted", "no"));
props.push_back (std::make_pair ("opaque", "yes"));
props.push_back (std::make_pair ("locked", "false"));
props.push_back (std::make_pair ("automatic", "true"));
props.push_back (std::make_pair ("whole-file", "yes"));
props.push_back (std::make_pair ("external", "false"));
props.push_back (std::make_pair ("hidden", "no"));
props.push_back (std::make_pair ("start", "123456789098"));
props.push_back (std::make_pair ("length", "123456789"));
props.push_back (std::make_pair ("stretch", "1"));
props.push_back (std::make_pair ("shift", "1"));
props.push_back (std::make_pair ("master-source-0", "12345"));
props.push_back (std::make_pair ("master-source-1", "54321"));
props.push_back (std::make_pair ("source-0", "123"));
props.push_back (std::make_pair ("source-1", "321"));
props.push_back (std::make_pair ("default-fade-in", "yes"));
props.push_back (std::make_pair ("default-fade-out", "no"));
props.push_back (std::make_pair ("fade-in-active", "no"));
props.push_back (std::make_pair ("fade-out-active", "yes"));
props.push_back (std::make_pair ("channels", "2"));
props.push_back (std::make_pair ("beat", "0"));
props.push_back (std::make_pair ("pulse", "1.3333333"));
props.push_back (std::make_pair ("sync-position", "4321"));
props.push_back (std::make_pair ("ancestral-start", "987654321"));
props.push_back (std::make_pair ("ancestral-length", "12345678"));
return props;
}
static const std::vector<std::pair<std::string, std::string> > properties = get_test_properties ();
static
std::string
get_event_content (uint32_t lines)
{
stringstream sstr;
sstr.precision (17);
for (uint32_t i = 0; i < lines; ++i) {
sstr << 0.12345678901234567;
sstr << ' ';
sstr << -0.9876543210987654;
sstr << '\n';
}
return sstr.str();
}
struct NodeOptions
{
NodeOptions (const std::string& p_node_name, uint32_t p_node_count,
uint32_t p_node_property_count, const std::string& p_node_content = std::string())
: node_name (p_node_name)
, node_count (p_node_count)
, node_property_count (p_node_property_count)
, node_content (p_node_content)
{
}
std::string node_name;
uint32_t node_count;
uint32_t node_property_count;
std::string node_content;
};
bool
create_child_nodes (XMLNode& parent_node, std::vector<NodeOptions>::iterator begin,
std::vector<NodeOptions>::iterator end)
{
if (begin == end) return true;
NodeOptions options = *begin;
std::vector<NodeOptions>::iterator child_node_iter = ++begin;
for (uint32_t node_count = 0; node_count < options.node_count; ++node_count) {
XMLNode* new_node = new XMLNode (options.node_name);
if (!new_node) {
return false;
}
for (uint32_t prop_count = 0; prop_count < options.node_property_count; ++prop_count) {
new_node->add_property (properties[prop_count].first.c_str (), properties[prop_count].second);
}
if (!options.node_content.empty()) {
XMLNode* content_node = new XMLNode ("");
if (!content_node) {
return false;
}
content_node->set_content (options.node_content);
new_node->add_child_nocopy (*content_node);
}
create_child_nodes (*new_node, child_node_iter, end);
// Terrible API "design"
parent_node.add_child_nocopy (*new_node);
}
return true;
}
bool
create_xml_doc (XMLTree& xml_doc, std::vector<NodeOptions>& options)
{
XMLNode* root = new XMLNode (root_node_name);
if (!root) return false;
xml_doc.set_root (root);
return create_child_nodes (*xml_doc.root(), options.begin(), options.end());
}
static const uint32_t test_iterations = 10;
void
test_xml_document (const std::string& test_name,
std::vector<NodeOptions>& node_options)
{
const string test_output_dir = test_output_directory (test_name);
const std::string output_file_basename = Glib::build_filename (test_output_dir, test_name);
TimingData create_timing_data, write_timing_data, read_timing_data;
for (uint32_t iter = 0; iter < test_iterations; ++iter) {
char buf[16];
snprintf (buf, sizeof(buf), "%d", iter);
const std::string output_file_path = output_file_basename + buf + ".xml";
create_timing_data.start_timing ();
XMLTree test_xml;
CPPUNIT_ASSERT (create_xml_doc (test_xml, node_options));
create_timing_data.add_elapsed ();
write_timing_data.start_timing ();
test_xml.write (output_file_path);
write_timing_data.add_elapsed ();
read_timing_data.start_timing ();
PBD::Timing read_timing;
XMLTree read_doc (output_file_path);
read_timing_data.add_elapsed ();
// check that what we have read is identical to what was written
CPPUNIT_ASSERT (*read_doc.root() == *test_xml.root());
// These files are too big to keep around
CPPUNIT_ASSERT (g_remove (output_file_path.c_str ()) == 0);
}
std::cerr << std::endl;
std::cerr << " Create : " << create_timing_data.summary ();
std::cerr << " Write : " << write_timing_data.summary ();
std::cerr << " Read : " << read_timing_data.summary ();
}
void
XMLTest::testPerfSmallXMLDocument ()
{
std::vector<NodeOptions> node_options;
// A config like file with nodes with properties with name/value pairs
node_options.push_back (NodeOptions (child_node_name, 256, 2));
test_xml_document ("testPerfSmallXMLDocument", node_options);
}
void
XMLTest::testPerfMediumXMLDocument ()
{
std::vector<NodeOptions> node_options;
// A normal Session like size file
node_options.push_back (NodeOptions (child_node_name, 32, 2));
node_options.push_back (NodeOptions (grandchild_node_name, 32, 16, get_event_content (16)));
node_options.push_back (NodeOptions (great_grandchild_node_name, 8, 8));
test_xml_document ("testPerfMediumXMLDocument", node_options);
}
void
XMLTest::testPerfLargeXMLDocument ()
{
std::vector<NodeOptions> node_options;
// A large Session like size file
node_options.push_back (NodeOptions (child_node_name, 32, 2));
node_options.push_back (NodeOptions (grandchild_node_name, 128, 16, get_event_content (32)));
node_options.push_back (NodeOptions (great_grandchild_node_name, 16, 8));
test_xml_document ("testPerfLargeXMLDocument", node_options);
}

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@ -5,8 +5,14 @@ class XMLTest : public CppUnit::TestFixture
{
CPPUNIT_TEST_SUITE (XMLTest);
CPPUNIT_TEST (testXMLFilenameEncoding);
CPPUNIT_TEST (testPerfSmallXMLDocument);
CPPUNIT_TEST (testPerfMediumXMLDocument);
CPPUNIT_TEST (testPerfLargeXMLDocument);
CPPUNIT_TEST_SUITE_END ();
public:
void testXMLFilenameEncoding ();
void testPerfSmallXMLDocument ();
void testPerfMediumXMLDocument ();
void testPerfLargeXMLDocument ();
};