Percona

NOVEMBER 3, 2023

About the cluster Following a step-by-step process, the objective is to create a four-node cluster consisting of: PostgreSQL version 15 Citus extension (I’ll be using version 11, but there are newer ones available.) psql pgbench <<_eof1_ qecho adding node citus3.

Database 105

Database Benchmarking Latency C++ 105

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. When a problem occurs, we put on our detective hats and start our mystery-solving process by gathering evidence. by Elizabeth Carretto Everyone loves Unsolved Mysteries.

Latency 296

Latency Transportation Engineering Traffic 296

Dynatrace

APRIL 25, 2023

In this blog post, we will discuss some of these challenges and how to overcome them. Higher latency and cold start issues due to the initialization time of the functions. Data visualization : how to present, explore and interpret observability data from serverless functions intuitively, clearly, and holistically?

Serverless 216

Serverless Lambda Azure AWS 216

Dynatrace

FEBRUARY 4, 2021

Site reliability engineering (SRE) is the practice of applying software engineering principles to operations and infrastructure processes to help organizations create highly reliable and scalable software systems. Shift-left using an SRE approach means that reliability is baked into each process, app and code change.

Engineering 184

Engineering DevOps Government Latency 184

The Netflix TechBlog

FEBRUARY 20, 2019

Today we are excited to announce latency heatmaps and improved container support for our on-host monitoring solution?—?Vector?—?to Remotely view real-time process scheduler latency and tcp throughput with Vector and eBPF What is Vector? to the broader community. Vector is open source and in use by multiple companies.

Performance 211

Performance Latency Open Source Metrics 211

The Netflix TechBlog

AUGUST 30, 2021

In this blog post, we will focus on the latter feature set. The challenge, then, is to be able to ingest and process these events in a scalable manner, i.e., scaling with the number of devices, which will be the focus of this blog post. In particular, the Kafka integration is the most relevant for this blog post.

Latency 213

Latency Traffic Transportation Hardware 213

The Netflix TechBlog

SEPTEMBER 3, 2021

When we process a request it is often beneficial to know which fields the caller is interested in and which ones they ignore. Remote calls are never free; they impose extra latency, increase probability of an error, and consume network bandwidth. FieldMask is a protobuf message.

Design 245

Design Java Efficiency Code 245

The Netflix TechBlog

MARCH 4, 2024

In this blog post, we present our project on Auto Remediation, which integrates the currently used rule-based classifier with an ML service and aims to automatically remediate failed jobs without human intervention. In this way, no human intervention is required in the remediation process. Multi-objective optimizations.

Tuning 210

Tuning Efficiency Big Data Engineering 210

Dynatrace

APRIL 6, 2022

Observability can identify the baseline user experience and allow teams to improve it by optimizing page load times or reducing latency. Cloud environments present IT complexity challenges that don’t exist in on-premises data centers. appeared first on Dynatrace blog. Why full-stack observability matters.

DevOps 238

DevOps Innovation Infrastructure Analytics 238

Adrian Cockcroft

JANUARY 29, 2023

The mean and percentile measurements hide this structure, but the rest of this post will show how the structure can be measured and analyzed so that you can figure out a useful model of your system, understand what is driving the long tail of latencies and come up with better SLAs and measures of capacity.

Lambda 98

Lambda Latency Cache C++ 98

Percona

MARCH 29, 2023

In this blog, we will discuss both data and network-level compression offered in MongoDB. When this data block is read, it decompresses it in memory and presents it to the incoming request. You can learn more about it in the blog MongoDB: Why Pay for Enterprise When Open Source Has You Covered? provides higher compression rates.

Storage 108

Storage Network Open Source Latency 108

The Netflix TechBlog

DECEMBER 21, 2020

There are several benefits of such optimizations like saving on storage, faster query time, cheaper downstream processing, and an increase in developer productivity by removing additional ETLs written only for query performance improvement. We will publish a follow-up blog post about AutoAnalyze in the future.

Storage 203

Storage Latency Efficiency Data Engineering 203

Dynatrace

DECEMBER 22, 2021

Metrics are measures of critical system values, such as CPU utilization or average write latency to persistent storage. A platform approach, on the other hand, presents a more effective option for understanding observability as a whole. In this case, the best option may be to stop the process and execute it when system load is low.

Artificial Intelligence 186

Artificial Intelligence Metrics Architecture DevOps 186

The Netflix TechBlog

FEBRUARY 9, 2021

We need to be able to easily determine what imagery is present for a given platform, region, and language. Server-generated assets, since client-side generation would require the retrieval of many individual images, which would increase latency and time-to-render. The imagery needs to be localized.

Engineering 165

Engineering Storage Latency Entertainment 165

The Netflix TechBlog

MARCH 13, 2020

As mentioned in our earlier blog post , Intel and Netflix have been collaborating on the SVT-AV1 encoder and decoder framework since August 2018. In this tech blog, we will report the current status of the SVT-AV1 project, as well as the characteristics and performance of the encoder and decoder.

Open Source 154

Open Source Efficiency C++ Speed 154

Percona

JULY 20, 2023

Meanwhile, Hans-Jürgen Schönig’s presentation , which brought up the old discussion of Unix socket vs. TCP/IP connection, triggered me to write about other aspects of network impact on performance. Following wait events are captured from a really fast/low latency network. See the next session for details.

Network 63

Network Performance Latency Servers 63

Speed Curve

FEBRUARY 5, 2024

desc="Time to process request at origin" NOTE: This is not a new API. Latency – How much time does it take to deliver a packet from A to B. For example, processing of web application firewall (WAF) rules, detecting bots or other malicious traffic though security services, and growing in popularity, edge compute.

Servers 57

Servers Cache Retail Benchmarking 57

Percona

MAY 2, 2023

Let’s look at some questions I did that a MySQL DBA usually needs to answer in an interview process. Keep in mind that setting the buffer pool size too high may result in other processes on your server competing for memory, which can impact performance. Questions Q: I have a MySQL server with 500 GB of RAM; my data set is 100 GB.

Social Media 121

Social Media Database Servers Cache 121

ACM Sigarch

MARCH 18, 2019

With two blog posts, we argue for more use of simple models beyond Amdahl’s Law. This Part 1 discusses Bottleneck Analysis and Little’s Law, while Part 2 presents the M/M/1 Queue. To this end, we present three simple models that we find useful like Amdahl’s Law, split here into two blog posts. Answered in Part 2.).

Systems 60

Systems Latency Performance Analytics 60

Brendan Gregg

JULY 2, 2021

E.g., to see process execution with timestamps using execsnoop(8): # execsnoop-bpfcc -T. Low frequency events such as process execution should be negligible to capture. Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization.

Latency 145

Latency Cache Energy Systems 145

The Netflix TechBlog

FEBRUARY 9, 2021

For more background on Growth Engineering and the signup funnel, please have a look at our previous blog post that covers the basics. Introduction and account creation Highlight our value propositions and begin the account creation process. Given the flow and mode, the Orchestration Service can then process the request.

Engineering 142

Engineering Scalability Architecture Innovation 142

Adrian Cockcroft

JANUARY 20, 2023

switches to connect processing nodes, pooled memory and I/O resources into very large coherent fabrics within a rack, and use Ethernet between racks. I have always been particularly interested in the interconnects and protocols used to create clusters, and the latency and bandwidth of the various offerings that are available.

Architecture 52

Architecture Latency Benchmarking AWS 52

ACM Sigarch

MARCH 25, 2019

With two blog posts, we argue for more use of simple models beyond Amdahl’s Law. Part 1 previously discussed Bottleneck Analysis and Little’s Law, while this post (Part 2) presents the M/M/1 Queue. How many buffers are needed to track pending requests as a function of needed bandwidth and expected latency? and 1/S as ?.

Systems 53

Systems Latency Performance C++ 53

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. What about short-lived processes, like a service restarting in a loop? html [unroll the loop]: /blog/2014-04-26/the-noploop-cpu-benchmark.html A quick check of basic performance statistics showed over 30% higher CPU consumption.

Speed 126

Speed Java AWS Virtualization 126

CSS Wizardry

MARCH 3, 2019

This means that, if the Cache-Control: max-age=60 header is still present, the cached file’s 60 seconds starts again. A great candidate for must-revalidate is a blog like mine: static pages that seldom change. We can completely cut out the overhead of a roundtrip of latency. 120 seconds overall cache time for one file.

Cache 264

Cache Latency Strategy Servers 264

Dotcom-Montior

MAY 12, 2020

Websites are now more than just the storage and retrieval of information to present content to users. A request will be sent from the client-side and an HTTP check waits on the server port to get the message, process it, and then send back the response. Network latency. Processing and generating the response. Wi-Fi usage.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

The Netflix TechBlog

DECEMBER 17, 2019

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks. Some of DBLog’s features are: Processes captured log events in-order.

Database 197

Database Traffic Transportation Open Source 197

The Netflix TechBlog

DECEMBER 17, 2019

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks. Some of DBLog’s features are: Processes captured log events in-order.

Database 212

Database Traffic Transportation Open Source 212

All Things Distributed

JUNE 21, 2018

This doesn't mean relational databases do not provide utility in present-day development and are not available, scalable, or provide high performance. Use cases such as gaming, ad tech, and IoT lend themselves particularly well to the key-value data model where the access patterns require low-latency Gets/Puts for known key values.

Database 167

Database AWS Games Latency 167

Dotcom-Montior

DECEMBER 8, 2021

Now that we have talked about what an incident is, incident management is the process by which teams resolve these events and bring systems and services back to normal operation. ITSM is the policies, processes, and structure behind the lifecycle of IT services. Incident Management Lifecyle: Process and Steps. Service Desk.

Social Media 90

Social Media Monitoring Latency DevOps 90

Dotcom-Montior

NOVEMBER 24, 2021

A three-tier system is a software application architecture that consists of a presentation layer, application layer, and data, or core, layer. Each process has its own independent memory that it works with. This also includes latency, or the time it takes for data or a request to get through a network. Three-Tier. Concurrency.

Systems 74

Systems Monitoring Hardware Network 74

Brendan Gregg

AUGUST 29, 2021

Problem Statement The microservice managed and processed large files, including encrypting them and then storing them on S3. biolatency From [bcc], this eBPF tool shows a latency histogram of disk I/O. This is a rough post to share this old but good case study of using these tools, and to help justify their further development.

Cache 105

Cache C++ AWS Latency 105

Testsigma

FEBRUARY 12, 2021

The implementation of emerging technologies has helped improve the process of software development, testing, design and deployment. With all of these processes in place, cost optimization is also a high concern for organizations worldwide. Many changes are rendered through automated testing. Hyperautomation. billion in 2019 to $40.74

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

Percona

APRIL 17, 2023

In this blog post, we will discuss the best practices on the MongoDB ecosystem applied at the Operating System (OS) and MongoDB levels. The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all.

Best Practices 52

Best Practices Design Tuning Database 52

The Netflix TechBlog

NOVEMBER 12, 2019

To make this happen, we personalize many aspects of our service, including which movies and TV shows we present on each member’s homepage. In this blog post, we will go into more detail about this page simulation system and discuss some of the lessons we learned along the way. Why Is This Hard?

Metrics 124

Metrics Government Systems Testing 124

Alex Russell

JANUARY 30, 2024

The blog you're reading loads over a single connection in ~1.2 Regardless, I present the thinking behind them because it can provide teams with informed points of departure, and also because clarifying the ritual freakout taking place as INP begins to put a price on JavaScript externalities. and 75KiB of JavaScript.

Performance 90

Performance Network Mobile Speed 90

The Netflix TechBlog

NOVEMBER 12, 2019

To make this happen, we personalize many aspects of our service, including which movies and TV shows we present on each member’s homepage. In this blog post, we will go into more detail about this page simulation system and discuss some of the lessons we learned along the way. Why Is This Hard?

Metrics 100

Metrics Government Systems Testing 100