log4js-node/examples/memory-test.js

const log4js = require('../lib/log4js');

log4js.configure({
  appenders: {
    logs: {
      type: 'file',
      filename: 'memory-test.log',
    },
    console: {
      type: 'stdout',
    },
    file: {
      type: 'file',
      filename: 'memory-usage.log',
      layout: {
        type: 'messagePassThrough',
      },
    },
  },
  categories: {
    default: { appenders: ['console'], level: 'info' },
    'memory-test': { appenders: ['logs'], level: 'info' },
    'memory-usage': { appenders: ['console', 'file'], level: 'info' },
  },
});
const logger = log4js.getLogger('memory-test');
const usage = log4js.getLogger('memory-usage');

for (let i = 0; i < 1000000; i += 1) {
  if (i % 5000 === 0) {
    usage.info('%d %d', i, process.memoryUsage().rss);
  }
  logger.info('Doing something.');
}
log4js.shutdown(() => {});