500% scalability improvements to payment gateway to handle 5 fold increase in transaction volume

500%
Improvement in performance and scalability
5x
Transaction volume the gateway was engineered to handle
6
Single points of failure identified and fixed
100%
Cut in total project duration using COMP-A-S-S™ reporting

The Challenge

The bank’s payment gateway was already the largest of its kind in Asia. Business projections called for a 5-fold increase in transaction volume, and the gateway was already showing performance degradation under existing load. That combination — rising demand on top of an already strained system — put the project at the top of the leadership team’s priority list.

  • Payment gateway already operating at large scale, with limited headroom for growth.
  • Recurring performance degradation under current transaction volumes, before the projected surge.
  • A hard business deadline: the system had to be ready ahead of the projected 5x growth, not after it.

Avekshaa’s Approach

Avekshaa audited the system using its P-A-S-S™ framework (Performance, Availability, Scalability, Stability) and ran the assessment through COMP-A-S-S™, its proprietary performance modelling platform. The goal was two-fold: fix the current degradation, and prove the system could handle the incoming 5x load before it actually arrived.

What the review covered

  • Architecture review across the full stack — this is where the team found 6 single points of failure that were putting the gateway’s availability at risk.
  • Database review — the Oracle database was assessed at the architecture, query, instance, and I/O levels to find concrete performance improvement opportunities.
  • Infrastructure review — CPU, storage, and network layers were examined to isolate bottlenecks.
  • Application server review — thread management, memory allocation, and connection pooling were analyzed and re-tuned.
  • Performance benchmarking — used to measure whether the infrastructure could absorb the transaction surge without breaching service levels.
  • Performance modelling and simulation — used to predict system behaviour at the projected 5x transaction level, before committing to changes in production.

Technology environment

Stack assessed and tuned

Weblogic Application Server Oracle Database Solaris

The Results

500% improvement in overall performance and scalability.

Daily server reboots eliminated — multiple reboots per day, previously routine, were removed entirely.

Zero unplanned reboots recorded in the month following the fix.

Faster transactions and a measurably better end-user experience.

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Frequently Asked Questions

What is the P-A-S-S™ framework?P-A-S-S™ stands for Performance, Availability, Scalability, and Stability. It’s Avekshaa’s structured framework for auditing a system across these four dimensions rather than looking at performance in isolation.
What does COMP-A-S-S™ do? COMP-A-S-S™ is Avekshaa’s proprietary performance modelling platform. It runs simulations to predict system behaviour at future load levels and generates detailed audit reports in hours instead of weeks.
How long does a payment gateway performance audit typically take? It depends on system complexity and how much of the reporting is automated. In this engagement, using COMP-A-S-S™ for reporting cut the work from an estimated 2 months down to a couple of hours, which reduced the total project timeline by around 100%.
What’s a “single point of failure” in a payment gateway architecture? It’s any single component — a server, a database instance, a network link — that, if it fails, takes the whole system down because there’s no redundancy behind it. Identifying and removing these is standard practice in any scalability or availability audit.

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