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Vasantharajan N
Tera Sage
​Why Timing APIs Matter in ServiceNow Development
In a platform as complex and enterprise-critical as ServiceNow, even minor inefficiencies in server-side scripts (e.g., Business Rules, Script Includes, or Flows) can cascade into significant performance bottlenecks. Historically, developers relied on ad-hoc logging or manual timestamp calculations to measure code execution—a tedious and error-prone process. The Yokohama release addresses this gap by bringing standardized timing tools to the platform, enabling precise performance analysis with minimal effort.
 
​Breaking Down the New Console Methods
1. ​console.time(label)
   Starts a timer with a unique label. Use this at the beginning of a code block you want to measure.  
 
2. ​console.timeLog(label, [data])
   Logs the current duration of the timer without stopping it. Optional data can be appended for context.  
 
3. ​console.timeEnd(label)
   Stops the timer and logs the total execution time.  
 
These methods work together to create a seamless workflow for tracking performance metrics.
 
​Practical Benefits for ServiceNow Developers
 
1. ​Pinpoint Performance Bottlenecks
ServiceNow scripts often interact with databases, APIs, or complex business logic. With `console.time()` and `console.timeEnd()`, developers can isolate slow operations.
 
For example: 
console.time("LoadUserData");  
var userData = new GlideRecord('sys_user');  
userData.query(); // Expensive operation  
console.timeEnd("LoadUserData"); // Logs: "LoadUserData: 450ms"  

This instantly reveals whether a query or loop is consuming excessive time, enabling targeted optimizations.  

 

2. Debug Complex Workflows
In multi-step processes (e.g., integrations or approval workflows), `console.timeLog()` allows interim checks without resetting the timer:  
console.time("ProcessIncident");  
fetchData();  // function call
console.timeLog("ProcessIncident", "Data fetched"); // Logs: "ProcessIncident: 320ms: Data fetched"  
transformData();   // function call
console.timeLog("ProcessIncident", "Data transformed"); // Logs: "ProcessIncident: 320ms: Data transformed"
console.timeEnd("ProcessIncident"); // Logs: "ProcessIncident: 780ms"​

This helps identify which phase of a workflow is lagging.

 

3. Standardize Performance Checks
By replacing inconsistent logging practices (e.g., `gs.info("Time: " + new Date().getTime())`), teams can adopt a unified approach to performance monitoring. This consistency improves code readability and collaboration.  
 
​4. Optimize for Scalability
In large applications, even small delays per transaction can strain system resources. Timing APIs help developers proactively identify and address inefficiencies, ensuring scripts scale gracefully under load.  
 
​Real-World Use Cases
  • Database Query Tuning: Measure `GlideRecord` query times and experiment with optimizations like adjusted conditions or indexes.
  • Integration Monitoring: Track how long external API calls take and set benchmarks for acceptable latency.
  • ​Script Include Optimization: Identify frequently called functions that need refactoring.  
 
​Best Practices
  • ​Use Descriptive Labels: Assign unique, meaningful names (e.g., `"PortalWidgetRendering"`) to avoid conflicts.  
  • ​Avoid Overuse: Profile critical paths rather than timing every function to prevent log clutter.
  • ​Remove in Production: These ​a​pis are for debugging—strip them from production code or wrap them in debug flags.  
 
​Embracing Modern Developer Practices
By integrating `console.time()`, `console.timeLog()`, and `console.timeEnd()`, ServiceNow aligns its scripting environment with industry-standard developer tools. This lowers the learning curve for new developers and empowers teams to adopt data-driven optimization practices.  
 
Conclusion
The Yokohama release’s timing APIs are more than just convenience apis—th​e​y help us do performance-aware development in ServiceNow. By leveraging these methods, developers can deliver faster, more reliable applications while fostering collaboration through standardized debugging practices.  
 
Start incorporating `console.time()` into your scripts today, and unlock the ability to diagnose, refine, and elevate your ServiceNow solutions like never before.  
 
​Optimize smarter, not harder.

 

Link to API documentation: https://www.servicenow.com/docs/bundle/yokohama-api-reference/page/app-store/dev_portal/API_referenc...

 

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Version history
Last update:
‎03-21-2025 12:45 AM
Updated by:
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