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premiere-libtorrent
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more asserts and tests for the bandwidth_limiter

This commit is contained in:
Arvid Norberg 2007-08-26 23:40:58 +00:00
parent 1a1c060ba3
commit 8b44a25bbb
2 changed files with 43 additions and 23 deletions
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2
src/torrent.cpp
View File

@ -2025,7 +2025,9 @@ namespace libtorrent
, boost::intrusive_ptr<peer_connection> const& p
, bool non_prioritized)
{
assert(m_bandwidth_limit[channel].throttle() > 0);
int block_size = m_bandwidth_limit[channel].throttle() / 10;
if (block_size <= 0) block_size = 1;
if (m_bandwidth_limit[channel].max_assignable() > 0)
{

64
test/test_bandwidth_limiter.cpp
View File

@ -12,6 +12,8 @@ struct peer_connection;
using namespace libtorrent;
const float sample_time = 6.f; // seconds
struct torrent
{
torrent(bandwidth_manager<peer_connection, torrent>& m)
@ -23,6 +25,7 @@ struct torrent
// std::cerr << time_now_string()
// << ": assign bandwidth, " << amount << " blk: " << max_block_size << std::endl;
assert(amount > 0);
assert(amount <= max_block_size);
if (amount < max_block_size)
expire_bandwidth(channel, max_block_size - amount);
}
@ -40,7 +43,9 @@ struct torrent
// std::cerr << time_now_string()
// << ": request bandwidth" << std::endl;
assert(m_bandwidth_limit[channel].throttle() > 0);
int block_size = m_bandwidth_limit[channel].throttle() / 10;
if (block_size <= 0) block_size = 1;
if (m_bandwidth_limit[channel].max_assignable() > 0)
{
@ -192,7 +197,7 @@ void run_test(io_service& ios, connections_t& v)
tick.async_wait(boost::bind(&do_tick, _1, boost::ref(tick), boost::ref(v)));
deadline_timer complete(ios);
complete.expires_from_now(seconds(libtorrent::stat::history * 2));
complete.expires_from_now(milliseconds(int(sample_time * 1000)));
complete.async_wait(boost::bind(&do_stop, boost::ref(tick), boost::ref(v)));
std::for_each(v.begin(), v.end()
@ -234,12 +239,13 @@ void test_equal_connections(int num, int limit)
for (connections_t::iterator i = v.begin()
, end(v.end()); i != end; ++i)
{
sum += (*i)->m_stats.upload_rate();
sum += (*i)->m_stats.total_payload_upload();
std::cerr << (*i)->m_stats.upload_rate()
std::cerr << (*i)->m_stats.total_payload_upload() / sample_time
<< " target: " << (limit / num) << " eps: " << err << std::endl;
TEST_CHECK(close_to((*i)->m_stats.upload_rate(), limit / num, err));
TEST_CHECK(close_to((*i)->m_stats.total_payload_upload() / sample_time, limit / num, err));
}
sum /= sample_time;
std::cerr << "sum: " << sum << " target: " << limit << std::endl;
TEST_CHECK(close_to(sum, limit, 50));
}
@ -264,23 +270,26 @@ void test_single_peer(int limit, bool torrent_limit)
for (connections_t::iterator i = v.begin()
, end(v.end()); i != end; ++i)
{
sum += (*i)->m_stats.upload_rate();
sum += (*i)->m_stats.total_payload_upload();
}
sum /= sample_time;
std::cerr << sum << " target: " << limit << std::endl;
TEST_CHECK(close_to(sum, limit, 1000));
}
void test_equal_torrents(int num, int limit)
void test_torrents(int num, int limit1, int limit2, int global_limit)
{
std::cerr << "test equal torrents " << num << " " << limit << std::endl;
std::cerr << "test equal torrents " << num << " " << limit1 << " " << limit2 << std::endl;
io_service ios;
bandwidth_manager<peer_connection, torrent> manager(ios, 0);
if (global_limit > 0)
manager.throttle(global_limit);
boost::shared_ptr<torrent> t1(new torrent(manager));
boost::shared_ptr<torrent> t2(new torrent(manager));
t1->m_bandwidth_limit[0].throttle(limit);
t2->m_bandwidth_limit[0].throttle(limit);
t1->m_bandwidth_limit[0].throttle(limit1);
t2->m_bandwidth_limit[0].throttle(limit2);
connections_t v1;
spawn_connections(v1, ios, t1, num, "t1p");
@ -295,19 +304,21 @@ void test_equal_torrents(int num, int limit)
for (connections_t::iterator i = v1.begin()
, end(v1.end()); i != end; ++i)
{
sum += (*i)->m_stats.upload_rate();
sum += (*i)->m_stats.total_payload_upload();
}
std::cerr << sum << " target: " << limit << std::endl;
TEST_CHECK(close_to(sum, limit, 1000));
sum /= sample_time;
std::cerr << sum << " target: " << limit1 << std::endl;
TEST_CHECK(close_to(sum, limit1, 1000));
sum = 0.f;
for (connections_t::iterator i = v2.begin()
, end(v2.end()); i != end; ++i)
{
sum += (*i)->m_stats.upload_rate();
sum += (*i)->m_stats.total_payload_upload();
}
std::cerr << sum << " target: " << limit << std::endl;
TEST_CHECK(close_to(sum, limit, 1000));
sum /= sample_time;
std::cerr << sum << " target: " << limit2 << std::endl;
TEST_CHECK(close_to(sum, limit2, 1000));
}
void test_peer_priority(int limit, bool torrent_limit)
@ -335,13 +346,14 @@ void test_peer_priority(int limit, bool torrent_limit)
for (connections_t::iterator i = v1.begin()
, end(v1.end()); i != end; ++i)
{
sum += (*i)->m_stats.upload_rate();
sum += (*i)->m_stats.total_payload_upload();
}
sum /= sample_time;
std::cerr << sum << " target: " << limit << std::endl;
TEST_CHECK(close_to(sum, limit, 50));
std::cerr << "non-prioritized rate: " << p->m_stats.upload_rate() << std::endl;
TEST_CHECK(p->m_stats.upload_rate() < 10);
std::cerr << "non-prioritized rate: " << p->m_stats.total_payload_upload() / sample_time << std::endl;
TEST_CHECK(p->m_stats.total_payload_upload() / sample_time < 10);
}
void test_no_starvation(int limit)
@ -369,27 +381,33 @@ void test_no_starvation(int limit)
for (connections_t::iterator i = v.begin()
, end(v.end()); i != end; ++i)
{
sum += (*i)->m_stats.upload_rate();
sum += (*i)->m_stats.total_payload_upload();
}
sum /= sample_time;
std::cerr << sum << " target: " << limit << std::endl;
TEST_CHECK(close_to(sum, limit, 50));
std::cerr << "non-prioritized rate: " << p->m_stats.upload_rate() << std::endl;
TEST_CHECK(close_to(p->m_stats.upload_rate(), limit / (num_peers + 1), 1000));
std::cerr << "non-prioritized rate: " << p->m_stats.total_payload_upload() / sample_time << std::endl;
TEST_CHECK(close_to(p->m_stats.total_payload_upload() / sample_time, limit / (num_peers + 1), 1000));
}
int test_main()
{
using namespace libtorrent;
test_equal_connections(2, 20);
test_equal_connections(2, 2000);
test_equal_connections(2, 20000);
test_equal_connections(3, 20000);
test_equal_connections(5, 20000);
test_equal_connections(7, 20000);
test_equal_connections(33, 60000);
test_equal_connections(33, 500000);
test_equal_torrents(1, 40000);
test_equal_torrents(24, 50000);
test_torrents(2, 400, 400, 0);
test_torrents(2, 100, 500, 0);
test_torrents(2, 3000, 3000, 6000);
test_torrents(1, 40000, 40000, 0);
test_torrents(24, 50000, 50000, 0);
test_single_peer(40000, true);
test_single_peer(40000, false);
test_peer_priority(40000, false);