mirror of
https://github.com/XRPLF/rippled.git
synced 2026-04-29 15:37:57 +00:00
124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
//------------------------------------------------------------------------------
|
|
/*
|
|
This file is part of rippled: https://github.com/ripple/rippled
|
|
Copyright (c) 2012-2016 Ripple Labs Inc.
|
|
|
|
Permission to use, copy, modify, and/or distribute this software for any
|
|
purpose with or without fee is hereby granted, provided that the above
|
|
copyright notice and this permission notice appear in all copies.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
//==============================================================================
|
|
#include <ripple/beast/clock/manual_clock.h>
|
|
#include <ripple/beast/unit_test.h>
|
|
#include <test/csf.h>
|
|
#include <test/csf/random.h>
|
|
#include <utility>
|
|
|
|
namespace ripple {
|
|
namespace test {
|
|
|
|
class ScaleFreeSim_test : public beast::unit_test::suite
|
|
{
|
|
void
|
|
run() override
|
|
{
|
|
using namespace std::chrono;
|
|
using namespace csf;
|
|
|
|
// Generate a quasi-random scale free network and simulate consensus
|
|
// as we vary transaction submission rates
|
|
|
|
int const N = 100; // Peers
|
|
|
|
int const numUNLs = 15; // UNL lists
|
|
int const minUNLSize = N / 4, maxUNLSize = N / 2;
|
|
|
|
ConsensusParms const parms{};
|
|
Sim sim;
|
|
PeerGroup network = sim.createGroup(N);
|
|
|
|
// generate trust ranks
|
|
std::vector<double> const ranks =
|
|
sample(network.size(), PowerLawDistribution{1, 3}, sim.rng);
|
|
|
|
// generate scale-free trust graph
|
|
randomRankedTrust(
|
|
network,
|
|
ranks,
|
|
numUNLs,
|
|
std::uniform_int_distribution<>{minUNLSize, maxUNLSize},
|
|
sim.rng);
|
|
|
|
// nodes with a trust line in either direction are network-connected
|
|
network.connectFromTrust(
|
|
date::round<milliseconds>(0.2 * parms.ledgerGRANULARITY));
|
|
|
|
// Initialize collectors to track statistics to report
|
|
TxCollector txCollector;
|
|
LedgerCollector ledgerCollector;
|
|
auto colls = makeCollectors(txCollector, ledgerCollector);
|
|
sim.collectors.add(colls);
|
|
|
|
// Initial round to set prior state
|
|
sim.run(1);
|
|
|
|
// Initialize timers
|
|
HeartbeatTimer heart(sim.scheduler, seconds(10s));
|
|
|
|
// Run for 10 minues, submitting 100 tx/second
|
|
std::chrono::nanoseconds const simDuration = 10min;
|
|
std::chrono::nanoseconds const quiet = 10s;
|
|
Rate const rate{100, 1000ms};
|
|
|
|
// txs, start/stop/step, target
|
|
auto peerSelector =
|
|
makeSelector(network.begin(), network.end(), ranks, sim.rng);
|
|
auto txSubmitter = makeSubmitter(
|
|
ConstantDistribution{rate.inv()},
|
|
sim.scheduler.now() + quiet,
|
|
sim.scheduler.now() + (simDuration - quiet),
|
|
peerSelector,
|
|
sim.scheduler,
|
|
sim.rng);
|
|
|
|
// run simulation for given duration
|
|
heart.start();
|
|
sim.run(simDuration);
|
|
|
|
BEAST_EXPECT(sim.branches() == 1);
|
|
BEAST_EXPECT(sim.synchronized());
|
|
|
|
// TODO: Clean up this formatting mess!!
|
|
|
|
log << "Peers: " << network.size() << std::endl;
|
|
log << "Simulated Duration: "
|
|
<< duration_cast<milliseconds>(simDuration).count() << " ms"
|
|
<< std::endl;
|
|
log << "Branches: " << sim.branches() << std::endl;
|
|
log << "Synchronized: " << (sim.synchronized() ? "Y" : "N")
|
|
<< std::endl;
|
|
log << std::endl;
|
|
|
|
txCollector.report(simDuration, log);
|
|
ledgerCollector.report(simDuration, log);
|
|
// Print summary?
|
|
// # forks? # of LCLs?
|
|
// # peers
|
|
// # tx submitted
|
|
// # ledgers/sec etc.?
|
|
}
|
|
};
|
|
|
|
BEAST_DEFINE_TESTSUITE_MANUAL_PRIO(ScaleFreeSim, consensus, ripple, 80);
|
|
|
|
} // namespace test
|
|
} // namespace ripple
|