Ruth  Nabimanya

Ruth Nabimanya


Memoization in Cost-based Optimizers

This blog post discusses memoization - a technique that allows cost-based optimizers to consider billions of alternative plans.

Query optimization is an expensive process that needs to explore multiple alternative ways to execute the query. The query optimization problem is NP-hard, and the number of possible plans grows exponentially with the query’s complexity. For example, a typical TPC-H query may have up to several thousand possible join orders, 2–3 algorithms per join, a couple of access methods per table, some filter/aggregate pushdown alternatives, etc. Combined, this could quickly explode the search space to millions of alternative plans.

This blog post will discuss memoization — an important technique that allows cost-based optimizers to consider billions of alternative plans in a reasonable time.

#database #sql #query optimization #query engine #apache calcite #query optimizer #database analysis

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Memoization in Cost-based Optimizers
Ron  Cartwright

Ron Cartwright


Improve Your Cost Management with AWS Saving Plans

The adaptability and flexibility of today’s cloud services present a lot of opportunities to cut infrastructure costs. Amazon Web Services and its plethora of services let you set up any kind of cloud environment for any type of application, without forcing you to make long-term commitments. At the very least, you don’t have to make a big initial investment to set up your cloud environments.

AWS resources are designed to make deploying cloud-native applications easy and affordable. Affordability is always important for businesses because cost-efficient applications guarantee higher returns on cloud investment. The way AWS services are set up allows for easy scaling of apps and cloud resource usage, but keeping your cloud environment efficient is not without its challenges.

#aws #amazon web services #cost #cost optimization #cost analysis #cost management #cost analytics #aws costs

Kubernetes: Monitoring, Reducing, and Optimizing Your Costs

Over the past two years at Magalix, we have focused on building our system, introducing new features, and scaling our infrastructure and microservices. During this time, we had a look at our Kubernetes clusters utilization and found it to be very low. We were paying for resources we didn’t use, so we started a cost-saving practice to increase cluster utilization, use the resources we already had and pay less to run our cluster.

In this article, I will discuss the top five techniques we used to better utilize our Kubernetes clusters on the cloud and eliminate wasted resources, thus saving money. In the end, we were able to cut our monthly bill by more than 50%!

  • Applying Workload Right-Sizing
  • Choosing The Right Worker Nodes
  • Autoscaling Workloads
  • Autoscaling Worker Nodes
  • Purchasing Commitment/Saving Plans

#cloud-native #kubernetes #optimization #kubecost #kubernetes-cost-savings #kubernetes-cost-monitoring #kubernetes-reduce-cost #kubernetes-cost-analysis

Seamus  Quitzon

Seamus Quitzon


AWS Cost Allocation Tags and Cost Reduction

Bob had just arrived in the office for his first day of work as the newly hired chief technical officer when he was called into a conference room by the president, Martha, who immediately introduced him to the head of accounting, Amanda. They exchanged pleasantries, and then Martha got right down to business:

“Bob, we have several teams here developing software applications on Amazon and our bill is very high. We think it’s unnecessarily high, and we’d like you to look into it and bring it under control.”

Martha placed a screenshot of the Amazon Web Services (AWS) billing report on the table and pointed to it.

“This is a problem for us: We don’t know what we’re spending this money on, and we need to see more detail.”

Amanda chimed in, “Bob, look, we have financial dimensions that we use for reporting purposes, and I can provide you with some guidance regarding some information we’d really like to see such that the reports that are ultimately produced mirror these dimensions — if you can do this, it would really help us internally.”

“Bob, we can’t stress how important this is right now. These projects are becoming very expensive for our business,” Martha reiterated.

“How many projects do we have?” Bob inquired.

“We have four projects in total: two in the aviation division and two in the energy division. If it matters, the aviation division has 75 developers and the energy division has 25 developers,” the CEO responded.

Bob understood the problem and responded, “I’ll see what I can do and have some ideas. I might not be able to give you retrospective insight, but going forward, we should be able to get a better idea of what’s going on and start to bring the cost down.”

The meeting ended with Bob heading to find his desk. Cost allocation tags should help us, he thought to himself as he looked for someone who might know where his office is.

#aws #aws cloud #node js #cost optimization #aws cli #well architected framework #aws cost report #cost control #aws cost #aws tags

Cloud  expert

Cloud expert


7 Tips on How to Optimize AWS Costs and Increase Profits

Imagine a world without cloud services. Businesses have to go back to the days when they have to create the physical IT infrastructure, install OS and applications, configurenetwork, invest in security, and constantly monitor performance. This immediately adds to the bill and also the number of resources organizations need to run their functions. Thankfully, cloud services like AWS (Amazon Web Services) do all that for you and charge you a monthly fee. But did you know you can further optimize these costs. This brings us to the question - how to optimize AWS costs? Here we shall share with you seven tips that can help you reduce costs and increase your profits.
How to Optimize AWS Costs

  1. Right Sizing EC2 Instances– By rightsizing, scheduling are reserving Amazon Elastic Compute Cloud or E2C Instances/Savings Plans you will be able to optimize the costs. The goal with this step is to match instance sizes to the workload. You will need to strike the perfect balance between capacity and resource utilization.
  2. Right Sizing EBS Volumes –Along with EC2 instances you also need to right size EBS volume which are attached to the instances. Most users tend to skip the step of deleting EBS volume when instances are launched. When theseunused EBS volumesremainthey can significantly add to your monthly AWS bill.
  3. Implement Elastic Cloud Architecture – There is always the occasional traffic surge that you need to prepare for and this is where implementing elastic cloud architecture would help you get more for less resources. With this you will be able to auto-scale groups wherein they are scaled in and out based on your needs. This allows you to meet surge in demands without making any compromises.
  4. Resource Cleaning–Like you can cut down on your need of a warehouse space by cleaning the clutter the same can be done with your Amazon Web Services. Using an intelligent resource cleaning tool would allow you to delete unused and obsolete files thus freeing up your resources. As your team use AWS they also generate lots of snapshots while backing up data. By removing some of the obsolete snapshots you will be able to optimize your AWS costs.
  5. Use of Lower Cost Tiers – There are six tiers of storage at different price points to choose from in Amazon Web Services. By moving some of your infrequently access data to lower cost tiers you will be able to cut down on the costs substantially. Review your data and categorize them into frequently used and infrequently used and you can move the latter to these cost effective plans.
  6. Do Away with Unused Assets – AWS comes with all the bells and whistles and there are several assets that you are never really going to use. However, you pay for these assets every month. Doing away with these resources would help you in bringing down the cost of your plan and saving substantially every month.
  7. Automate – You can’t be manually scanning through your data and performing all these checks and steps and this is where automating the process of Instances and Plan management would help you optimize the use of resources.
    To sum up these are some of the best practices you can follow to optimize your AWS costs. However, if you lack the resources or technical expertise to do so you can always make use of an AWS Cloud Cost Optimization Tool. They are absolutely handsfree and ensure continuous optimizations in real-time and help you get the best out of your AWS cloud. These tools assure great savings on your AWS bills and can increase your profits substantially.
    Summary: In this write-up we discuss how to optimize AWS costs and how AWS Cloud Cost Optimization Tool can help in reducing the costs and increasing your profits.

#optimize aws costs #how #how to optimize aws cost #aws cost

Banking App Development Cost - 8 Hidden Factors

Since 1994, Digital banking has been here. It is a very long time, but digital banking through mobile devices is entirely new to the banking industry. It all started when Atom became the first digital-only bank in the UK.

Nowadays, Tech-savvy customers expect corporations to support their digital movement, and because of this, almost every industry has adopted technologies to stay relevant with these modern customers. Most of the newbies who plan to develop a banking app have two questions in mind: “What is the cost of developing a banking application” and “Which hidden factors affect the cost of developing a banking app?”

You can get all the answers to these questions here, because this article will take you through the cost of developing a banking app, the features of banking apps, and much other pertinent information. After reading this, you will be able to plan better for your mobile banking app development. But before directly jumping into the cost of mobile banking app development, let’s take a look at the global digital payment market size of mobile banking.

Global Digital Payment Market Size

According to GlobalNewsWire, by 2026, the Global Digital Payment Market size is estimated to reach $175.8 billion, rising at a market growth of 20% CAGR during the forecast period.

Around 23% of millennials use mobile banking apps daily.
Around 49.2% of total smartphone users use mobile banking apps.
41% of Americans said that mobile banking apps had minimized their concerns about managing finances.

Banking app development cost

Data Source: Statista

As you can see, the data clearly indicates that the percentage of smartphone users are increasing day-by-day. Therefore, by engaging in your own mobile banking app development currently, you will be able to take advantage of the growth in mobile users. But, the cost of developing a banking application depends on so many factors like the platform, features, technologies, and so on.

Mobile banking app development cost

Cost of developing a banking app depends on various factors. To give you a rough idea of the mobile banking application development cost, the total development time for a fully-featured app sums to 3760 hours. Considering hourly rate for fintech projects of $25, the cost of developing a feature-loaded banking app stands around $94k.

Banking Application Development Cost depends on different phases such as:

  • Research and Planning
  • UI/UX Design
  • Development
  • Testing
  • Maintenance and Support

8 Hidden Factors of Costs of Mobile Banking App Development

1. Push Notifications

It’s not easy to imagine an app that does not utilize this necessary mobile capability. Push notifications always increase your users’ engagement with your mobile banking app and encourage the desired action. Push notifications are of three types:

  1. Transactional notifications notify users about their account updates.

  2. The Application-based notifications indicate when the mobile banking app requires the user’s attention, whether related to the password change requests or document submissions.

  3. Promotional notifications are to grab the attention of customers to offer discounts and attractive deals.

2. Chatbot Integration

For most users, mobile banking has a steep learning curve, and due to that, the customer will require immediate assistance on various occasions. Hence, creating a chatbot for customer service is the best way for many institutions to improve their customer service availability. The chatbots will save you a lot of time and money, whilst providing customer support 24/7. But this feature has a separate development process, and therefore you have to pay separately for this.

3. Servers

Servers are where your mobile banking app will be hosted. If you are not with the largest enterprises, you will want to outsource hosting from Amazon, Azure, or Google, which will result in more costs.

4. Content Delivery Network

A CDN is a system that is used to deliver content to the app based on the origin of the content, the content delivery server, and the geographic location of the particular user. In simple words, if you have users across the globe, and they have to keep coming back to one far off location to access the content, then the app will not perform in a good way. So, if you want your mobile banking app to perform effectively, you should use a content delivery network, because it reduces the app loading time and also increases the responsiveness of the app.

5. Development Tools

If you want to use paid deployment tools like iBuildApp, Appy Pie, and IBM MobileFirst, to develop your mobile banking apps, you will need to subscribe to them over the lifespan of your app. This will also affect your banking app development cost.

6. Android and iOS Updates

As we all know, both platforms constantly release updates, and those updates require maintenance. Depending on the extent of maintenance required, the cost in the long-term can sometimes be significant.

7. APIs

Every mobile app usually has multiple third-party APIs that they interact with, especially at the enterprise level. If you make changes to any of these applications, they will require periodic maintenance of your APIs. For instance, Facebook updated their API version four times in 2016; now, what if you want to integrate with Facebook? You will need to update your app to accommodate those changes.

8. Bugs

As you know, every app has bugs, and not even a single developer can assure you that there will be no bugs in the future in your app. It’s just that sometimes they go undiscovered for months or even years. User communities are not kind to apps that are slow to address the issues that they have reported.


The cost of banking application development not only depend on the features of the banking application, but they are also heavily affected by the hidden factors I have mentioned. The primary issue with mobile banking app development cost is the amount of individual components that you need to gather. Each of them can cost thousands of dollars, and these costs will continue throughout the lifespan of your app. However, the rewards that come from a successful mobile banking app development project are huge.

Pro Tip: The cost of developing a banking application greatly depends on the hourly rates of programmers and the expertise of the team. FinTech experts are able to complete these projects much more efficiently.

#banking app development cost #banking application development cost #cost of developing a banking app #cost of developing a banking application #mobile banking app development cost #mobile banking application development cost