All posts by Cennest

Optimizing Performance and Memory in iOS Apps (Part 2)

We’ve already been through optimizations in SQLite, NSLog and NSCache. Now we talk about careful use of NSNotifications, Auto-release and the power of GCD! Be careful with Notifications 1. Notifications are received on the same queue on which they are fired. So be careful about firing notifications on the Main queue since the receiver will […]

Arithmetic Overflow using MongoDB C# driver!

We recently resolved a crazy issue affecting one of our projects randomly…The project technology stack was MEAN stack using C# 2.6 driver for MongoDB. The issue was that “sometimes” insert/update queries wouldn’t work! On extensive logging we found the following Log in our diagnostics trace..”Arithmetic operation resulted in an overflow”. The query was an upsert […]