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/*
This file is part of GNU Taler
(C) 2021 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Imports.
*/
import {
AmountString,
buildCodecForObject,
codecForNumber,
codecForString,
codecOptional,
j2s,
Logger,
} from "@gnu-taler/taler-util";
import { createPlatformHttpLib } from "@gnu-taler/taler-util/http";
import {
AccessStats,
createNativeWalletHost2,
Wallet,
WalletApiOperation,
} from "@gnu-taler/taler-wallet-core";
import benchMerchantIDGenerator from "./benchMerchantIDGenerator.js";
/**
* Entry point for the benchmark.
*
* The benchmark runs against an existing Taler deployment and does not
* set up its own services.
*/
export async function runBench3(configJson: any): Promise<void> {
const logger = new Logger("Bench3");
// Validate the configuration file for this benchmark.
const b3conf = codecForBench3Config().decode(configJson);
if (!b3conf.paytoTemplate.includes("${id")) {
throw new Error("Payto template url must contain '${id}' placeholder");
}
const myHttpLib = createPlatformHttpLib({
enableThrottling: false,
});
const numIter = b3conf.iterations ?? 1;
const numDeposits = b3conf.deposits ?? 5;
const restartWallet = b3conf.restartAfter ?? 20;
const withdrawAmount = (numDeposits + 1) * 10;
const IDGenerator = benchMerchantIDGenerator(
b3conf.randomAlg,
b3conf.numMerchants ?? 100,
);
logger.info(
`Starting Benchmark iterations=${numIter} deposits=${numDeposits} with ${b3conf.randomAlg} merchant selection`,
);
const trustExchange = !!process.env["TALER_WALLET_INSECURE_TRUST_EXCHANGE"];
if (trustExchange) {
logger.info("trusting exchange (not validating signatures)");
} else {
logger.info("not trusting exchange (validating signatures)");
}
let wallet = {} as Wallet;
let getDbStats: () => AccessStats;
for (let i = 0; i < numIter; i++) {
// Create a new wallet in each iteration
// otherwise the TPS go down
// my assumption is that the in-memory db file gets too large
if (i % restartWallet == 0) {
if (Object.keys(wallet).length !== 0) {
wallet.stop();
console.log("wallet DB stats", j2s(getDbStats!()));
}
const res = await createNativeWalletHost2({
// No persistent DB storage.
persistentStoragePath: undefined,
httpLib: myHttpLib,
config: {
features: {},
testing: {
insecureTrustExchange: trustExchange,
},
},
});
wallet = res.wallet;
getDbStats = res.getDbStats;
await wallet.client.call(WalletApiOperation.InitWallet, {});
}
logger.trace(`Starting withdrawal amount=${withdrawAmount}`);
let start = Date.now();
await wallet.client.call(WalletApiOperation.WithdrawTestBalance, {
amount: b3conf.currency + ":" + withdrawAmount as AmountString,
corebankApiBaseUrl: b3conf.bank,
exchangeBaseUrl: b3conf.exchange,
});
await wallet.runTaskLoop({
stopWhenDone: true,
});
logger.info(
`Finished withdrawal amount=${withdrawAmount} time=${Date.now() - start}`,
);
for (let i = 0; i < numDeposits; i++) {
logger.trace(`Starting deposit amount=10`);
start = Date.now();
let merchID = IDGenerator.getRandomMerchantID();
let payto = b3conf.paytoTemplate.replace("${id}", merchID.toString());
await wallet.client.call(WalletApiOperation.CreateDepositGroup, {
amount: b3conf.currency + ":10" as AmountString,
depositPaytoUri: payto,
});
await wallet.runTaskLoop({
stopWhenDone: true,
});
logger.info(`Finished deposit amount=10 time=${Date.now() - start}`);
}
}
wallet.stop();
console.log("wallet DB stats", j2s(getDbStats!()));
}
/**
* Format of the configuration file passed to the benchmark
*/
interface Bench3Config {
/**
* Base URL of the bank.
*/
bank: string;
/**
* Payto url template for deposits, must contain '${id}' for replacements.
*/
paytoTemplate: string;
/**
* Base URL of the exchange.
*/
exchange: string;
/**
* How many withdraw/deposit iterations should be made?
* Defaults to 1.
*/
iterations?: number;
currency: string;
deposits?: number;
/**
* How any iterations run until the wallet db gets purged
* Defaults to 20.
*/
restartAfter?: number;
/**
* Number of merchants to select from randomly
*/
numMerchants?: number;
/**
* Which random generator to use.
* Possible values: 'zipf', 'rand'
*/
randomAlg: string;
}
/**
* Schema validation codec for Bench1Config.
*/
const codecForBench3Config = () =>
buildCodecForObject<Bench3Config>()
.property("bank", codecForString())
.property("paytoTemplate", codecForString())
.property("numMerchants", codecOptional(codecForNumber()))
.property("randomAlg", codecForString())
.property("exchange", codecForString())
.property("iterations", codecOptional(codecForNumber()))
.property("deposits", codecOptional(codecForNumber()))
.property("currency", codecForString())
.property("restartAfter", codecOptional(codecForNumber()))
.build("Bench1Config");
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