Performance Issue with Multiple Pages in JS Report

tgs-vaibhav-tt0055

We are encountering performance issues when generating reports with multiple pages using JS Report. The process is taking a considerable amount of time to complete.

Below is our current configuration along with the package versions we are using:

Packages and Versions:
@jsreport/jsreport-core: "^4.4.1"
@jsreport/jsreport-jsrender: "^4.0.0"
@jsreport/jsreport-phantom-pdf: "^4.1.0"
jsrender: "^1.0.15"
jsreport: "^4.6.0"

Configuration:

const jsreport = require('@jsreport/jsreport-core')({
  allowLocalFilesAccess: true,
  reportTimeout: 300000,
  reports: { async: true },
  logger: {
    silent: false, 
    error: { transport: 'file', level: 'error', filename: 'logs/error.txt' },
    file: { transport: 'file', level: 'info', filename: 'logs/log.txt' },
    console: {
      transport: 'console',
      level: 'debug',
      filename: 'logs/console.txt',
    },
  },
  templatingEngines: {
    numberOfWorkers: 4,
    strategy: 'in-process',
    templateCache: {
      max: 100, 
      enabled: true,
    },
  },
});
jsreport.use(require('@jsreport/jsreport-phantom-pdf')());
jsreport.use(require('@jsreport/jsreport-jsrender')());
module.exports = jsreport;

Usage in Controller:

// jsrender
jsrender.templates(jsReportData.htmlString);

// jsreport
jsreport.render({
  template: {
    id: id,
    shortid: 'ABC',
    recipe: 'phantom-pdf',
    engine: 'jsrender',
    phantom: {
      format: 'Letter',
      margin: margin,
      headerHeight: headerHeight,
      footerHeight: footerHeight,
      displayHeaderFooter: displayHeaderFooter,
      header: header,
      footer: footer,
    },
    content: htmlContent,
  },
});

We would appreciate your assistance in improving the performance or any guidance on optimizing our configuration

admin

How does the performance differ if you use html recipe? I guess the bottleneck will be the phantomjs html->pdf conversion.

How does chrome-pdf perform for you? The perf is the same?
Please check the perf notes for chrome, the same will apply for phantom
https://jsreport.net/learn/chrome-pdf#performance-optimization