Dynatrace

AUGUST 21, 2024

These releases often assumed ideal conditions such as zero latency, infinite bandwidth, and no network loss, as highlighted in Peter Deutsch’s eight fallacies of distributed systems. Chaos engineering is a practice that extends beyond traditional failure testing by identifying unpredictable issues.

Engineering 262

Engineering Systems Latency Metrics 262

Smashing Magazine

FEBRUARY 12, 2025

Connecting to a server on the web typically takes three round trips on the network: DNS: Looking up the server IP address. What Network Latency Means For Time To First Byte Lets add up all the network round trips in the example above: 2 server connections: 6 round trips. Here, Ive tested a website thats hosted in Brazil.

Servers 78

Servers Latency Cache Website 78

CSS Wizardry

MAY 31, 2019

Penalty: Network Negotiation. Every new origin we need to visit needs a connection opening, and that can be very costly: DNS resolution, TCP handshakes, and TLS negotiation all add up, and the story gets worse the higher the latency of the connection is. On a slower, higher-latency connection, the story is much, mush worse.

Cache 277

Cache Latency Infrastructure Website 277

The Netflix TechBlog

NOVEMBER 3, 2022

In that scenario, the system would need to deal with the data propagation latency directly, for example, by use of timeouts or client-originated update tracking mechanisms. We started seeing increased response latencies and leader servers running at dangerously high utilization.

Cache 233

Cache Latency Traffic Systems 233

CSS Wizardry

OCTOBER 27, 2018

A lot of companies—even if they are aware that performance is key to their business—are often unsure of how, when, or where performance testing sits within their development lifecycle. Each kind of testing is listed chronologically—that is, you should do them in order—but all complement each other, and will ultimately feed into one another.

Performance Testing 219

Performance Testing Testing Performance Strategy 219

Dynatrace

NOVEMBER 28, 2022

The new Amazon capability enables customers to improve the startup latency of their functions from several seconds to as low as sub-second (up to 10 times faster) at P99 (the 99th latency percentile). This can cause latency outliers and may lead to a poor end-user experience for latency-sensitive applications.

Lambda 246

Lambda AWS Serverless Latency 246

The Netflix TechBlog

SEPTEMBER 8, 2020

Migration Testing Infrastructure Our monolith had been around for many years and hadn’t been created with functional and unit testing in mind, so those were independently bolted on by each UI team. For the migration, testing was a first-class citizen. Replay Testing Enter replay testing.

Latency 241

Latency Cache Java Traffic 241

Scalegrid

OCTOBER 24, 2019

As organizations continue to migrate to the cloud, it’s important to get in front of performance issues, such as high latency, low throughput, and replication lag with higher distances between your users and cloud infrastructure. MySQL on AWS Performance Test. No more network-based EBS, just blazing-fast local SSD. Amazon RDS.

AWS 183

AWS Latency Performance Performance Testing 183

The Netflix TechBlog

SEPTEMBER 18, 2024

These include challenges with tail latency and idempotency, managing “wide” partitions with many rows, handling single large “fat” columns, and slow response pagination. It also serves as central configuration of access patterns such as consistency or latency targets. Useful for keeping “n-newest” or prefix path deletion.

Latency 260

Latency Storage Cache Efficiency 260

VoltDB

DECEMBER 11, 2024

By bringing computation closer to the data source, edge-based deployments reduce latency, enhance real-time capabilities, and optimize network bandwidth. Increased latency during peak loads. Inconsistent network performance affecting data synchronization. Managing data residency while leveraging global edge networks.

IoT 52

IoT Energy Logistics Latency 52

Dynatrace

OCTOBER 10, 2022

Application developers can spin up isolated test environments that pose no risk to current operations. Then, they can apply DevSecOps best practices to fully test new code and see what breaks without affecting current operations. Reduced latency. Difficult to test. Optimizes resources. Difficult to monitor.

Serverless 241

Serverless Infrastructure Lambda Latency 241

Dynatrace

JUNE 1, 2023

Note : you might hear the term latency used instead of response time. Both latency and response time are critical to ensure reliability. Latency typically refers to the time it takes for a single request to travel from its source to its destination. Latency primarily focuses on the time spent in transit.

Latency 245

Latency Website Traffic DevOps 245

DZone

FEBRUARY 26, 2021

But usually, it is seen that most of the applications fail to deliver expected performance under peak load or fluctuating network conditions. To ensure that users get high-performing software that works seamlessly under all load conditions, performance testing is necessary. Today, let's learn more about this testing type in depth.

Performance Testing 127

Performance Testing Testing Performance Latency 127

The Netflix TechBlog

AUGUST 30, 2021

By Benson Ma , Alok Ahuja Introduction At Netflix, hundreds of different device types, from streaming sticks to smart TVs, are tested every day through automation to ensure that new software releases continue to deliver the quality of the Netflix experience that our customers enjoy. In this blog post, we will focus on the latter feature set.

Latency 222

Latency Traffic Transportation Cloud 222

Dynatrace

SEPTEMBER 13, 2023

The Site Reliability Guardian helps automate release validation based on SLOs and important signals that define the expected behavior of your applications in terms of availability, performance errors, throughput, latency, etc. If so, test against the response time objective under the same Site Reliability Guardian.

AWS 305

AWS Efficiency Azure Cloud 305

Smashing Magazine

JANUARY 7, 2025

In this article, well discuss six ways to design websites for high-traffic events like product drops and sales: Compress and optimize images , Choose a scalable web host , Use a CDN , Leverage caching , Stress test websites , Refine the backend. A content delivery network (CDN) is an excellent solution to the problem.

Traffic 86

Traffic Website Design Cache 86

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. CFS is widely used and therefore well tested and Linux machines around the world run with reasonable performance.

Cache 258

Cache Latency Airlines Logistics 258

Dynatrace

OCTOBER 4, 2021

API testing complements monitoring. This is done through testing. If there’s a problem during testing, developers can quickly identify the root cause by looking at the differences in code between the last stable release and the release that produced the issue. Watch webinar now! The post What is API monitoring?

Monitoring 245

Monitoring Latency Metrics Availability 245

The Netflix TechBlog

OCTOBER 19, 2020

Reconstructing a streaming session was a tedious and time consuming process that involved tracing all interactions (requests) between the Netflix app, our Content Delivery Network (CDN), and backend microservices. Using simple lookup indices in Cassandra gives us the ability to maintain acceptable read latencies while doing heavy writes.

Infrastructure 238

Infrastructure Transportation Storage Open Source 238

Dynatrace

JUNE 27, 2022

These development and testing practices ensure the performance of critical applications and resources to deliver loyalty-building user experiences. Because pre-production environments are used for testing before an application is released to end users, teams have no access to real-user data. What is synthetic monitoring?

Best Practices 244

Best Practices Monitoring Wireless Traffic 244

Dynatrace

SEPTEMBER 25, 2019

Therefore, it requires multidimensional and multidisciplinary monitoring: Infrastructure health —automatically monitor the compute, storage, and network resources available to the Citrix system to ensure a stable platform. Citrix platform performance—optimize your Citrix landscape with insights into user load and screen latency per server.

Latency 164

Latency Performance Virtualization Infrastructure 164

The Netflix TechBlog

JANUARY 10, 2024

This architecture shift greatly reduced the processing latency and increased system resiliency. We expanded pipeline support to serve our studio/content-development use cases, which had different latency and resiliency requirements as compared to the traditional streaming use case. This testing stage took about two weeks.

Processing 238

Processing Media Latency Innovation 238

The Netflix TechBlog

SEPTEMBER 2, 2020

A span: Represents a unit of work, such as a network call from one service to another (a client/server relationship) or a purely internal action (e.g., Telltale provides Edgar with latency benchmarks that indicate if the individual trace’s latency is abnormal for this given service. starting and finishing a method).

Latency 298

Latency Transportation Engineering Traffic 298

Dynatrace

APRIL 26, 2022

With DEM solutions, organizations can operate over on-premise network infrastructure or private or public cloud SaaS or IaaS offerings. STM generates traffic that replicates the typical path or behavior of a user on a network to measure performance for example, response times, availability, packet loss, latency, jitter, and other variables).

Monitoring 246

Monitoring Social Media IoT Metrics 246

The Morning Paper

OCTOBER 4, 2020

We are standing on the eve of the 5G era… 5G, as a monumental shift in cellular communication technology, holds tremendous potential for spurring innovations across many vertical industries, with its promised multi-Gbps speed, sub-10 ms low latency, and massive connectivity. The first 5G networks are now deployed and operational.

Energy 130

Energy Latency Performance Network 130

Dynatrace

APRIL 8, 2024

In summary, the Dynatrace platform enables banks to do the following: Capture any data type: logs, metrics, traces, topology, behavior, code, metadata, network, security, web, and real-user monitoring data, and business events. Automate stress-testing and regulatory reporting requirements. Break down data silos.

Analytics 246

Analytics Infrastructure Efficiency Technology 246

Percona

MARCH 29, 2023

In this blog, we will discuss both data and network-level compression offered in MongoDB. We will discuss snappy and zstd for data block and zstd compression in a network. By default, MongoDB provides a snappy block compression method for storage and network communication. I am using PSMDB 6.0.4

Storage 130

Storage Network Open Source Latency 130

The Netflix TechBlog

NOVEMBER 2, 2020

Failure can occur due to a myriad of reasons: misbehaving clients that trigger a retry storm, an under-scaled service in the backend, a bad deployment, a network blip, or issues with the cloud provider. Those two metrics are approximate indicators of failures and latency. Let’s dig into how we accomplished this.

Traffic 261

Traffic Metrics Infrastructure Architecture 261

Percona

JULY 20, 2023

We often forget or take for granted the network hops involved and the additional overhead it creates on the overall performance. TCP/IP connection, triggered me to write about other aspects of network impact on performance. How to detect and measure the impact There is no easy mechanism for measuring the impact of network overhead.

Network 75

Network Performance Latency Servers 75

All Things Distributed

JULY 20, 2015

The pool of resources, at this time, is the CPU, memory, and networking resources of Amazon EC2 instances as partitioned by containers. networks ports, memory, CPU, etc). To be robust and scalable, this key/value store needs to be distributed for durability and availability, to protect against network partitions or hardware failures.

Latency 156

Latency Architecture AWS Open Source 156

Dynatrace

JUNE 1, 2023

Note : you might hear the term latency used instead of response time. Both latency and response time are critical to ensure reliability. Latency typically refers to the time it takes for a single request to travel from its source to its destination. Latency primarily focuses on the time spent in transit.

Traffic 173

Traffic Website Latency DevOps 173

Scalegrid

APRIL 16, 2020

A vast majority of the features are the same, outside of these advanced features available through the BYOC model: Virtual Private Clouds / Virtual Networks. Amazon Virtual Private Clouds (VPC) and Azure Virtual Networks (VNET) are private, isolated sections of the cloud infrastructure where you can launch resources. Security Groups.

Cloud 242

Cloud Azure AWS Database 242

Speed Curve

JANUARY 19, 2025

A critical part of the code yellow was ensuring Google's sites would be fast for users across the globe, even if they had slow networks and low end devices. So in addition to all the optimization work we did for Google Docs, I got to spend a lot of time and energy working on the measurement problem: how can we get end-to-end latency numbers?

Performance 98

Performance Google Speed Metrics 98

VoltDB

FEBRUARY 29, 2024

In this fast-paced ecosystem, two vital elements determine the efficiency of this traffic: latency and throughput. LATENCY: THE WAITING GAME Latency is like the time you spend waiting in line at your local coffee shop. All these moments combined represent latency – the time it takes for your order to reach your hands.

Latency 52

Latency Games Traffic Network 52

The Netflix TechBlog

APRIL 26, 2022

The first version of our logger library optimized for storage by deduplicating facts and optimized for network i/o using different compression methods for each fact. Corruption in data can significantly impact production model performance and A/B test results. Pay the storage, network, and compute cost.

Storage 195

Storage Design Scalability Latency 195

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. Why do we run Performance Tests on commits? By running performance tests against every commit (pre- and post-merge), we can detect potentially regressive commits earlier. What are the Performance Tests?

Performance 208

Performance Performance Testing Metrics Testing 208

Tim Kadlec

APRIL 18, 2019

” The fallacy of networks, or new devices for that matter, fixing our performance woes is old and repetitive. To be fair, each new generation of network connectivity does bring some level of change and transformation to how we interact with the internet. The fastest 4G network clocks in around 10 Mbps, and the slowest around 6.3

Network 61

Network Speed Internet Internet 61