The Netflix TechBlog

MAY 4, 2023

It provides a good read on the availability and latency ranges under different production conditions. These include options where replay traffic generation is orchestrated on the device, on the server, and via a dedicated service. Also, since this logic resides on the server side, we can iterate on any required changes faster.

Traffic 339

Traffic Latency Tuning Systems 339

High Scalability

FEBRUARY 17, 2021

Redis Server: 5.07, x86/64. MongoDB server: 4.4.2, BangDB server: 2.0.0, We note that for MongoDB update latency is really very low (low is better) compared to other dbs, however the read latency is on the higher side. Again Yugabyte latency is quite high. The latency table for test D is as below.

Benchmarking 308

Benchmarking Latency C++ Database 308

Speed Curve

FEBRUARY 5, 2024

Server-timing headers are a key tool in understanding what's happening within that black box of Time to First Byte (TTFB). Cue server-timing headers Historically, when looking at page speed, we've had the tendency to ignore TTFB when trying to optimize the user experience. I mean, why wouldn't we?

Servers 58

Servers Cache Retail Benchmarking 58

CSS Wizardry

OCTOBER 16, 2023

Concatenating our files on the server: Are we going to send many smaller files, or are we going to send one monolithic file? Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. 4,362ms of cumulative latency; 240ms of cumulative download.

Cache 291

Cache Latency Strategy Speed 291

Scalegrid

DECEMBER 21, 2023

Identifying key Redis® metrics such as latency, CPU usage, and memory metrics is crucial for effective Redis monitoring. To monitor Redis® instances effectively, collect Redis metrics focusing on cache hit ratio, memory allocated, and latency threshold.

Strategy 130

Strategy Monitoring Latency DevOps 130

The Morning Paper

SEPTEMBER 3, 2019

SLOG: serializable, low-latency, geo-replicated transactions Ren et al., That’s where SLOG (Serializable LOw-latency, Geo-replicated transactions) comes in. Within a region there is a local input log maintained across multiple servers using Paxos. VLDB’19. in the paper for details on how migrations are made safe).

Latency 70

Latency Processing Benchmarking Systems 70

SQL Shack

OCTOBER 7, 2020

In this article, we will learn how to use Apache JMeter to perform a load test on SQL Server. This test type enables us to measure the application behaviors under specific conditions so that it enables us to observe a variety of resource consumptions (CPU, memory, latency, response times, etc) and it also helps to […].

Servers 115

Servers Testing Performance Latency 115

Smashing Magazine

MAY 16, 2022

Rethinking Server-Timing As A Critical Monitoring Tool. Rethinking Server-Timing As A Critical Monitoring Tool. In the world of HTTP Headers, there is one header that I believe deserves more air-time and that is the Server-Timing header. Setting Server-Timing. Sean Roberts. 2022-05-16T10:00:00+00:00.

Servers 92

Servers Monitoring Cache Network 92

Scalegrid

APRIL 23, 2021

Redis stands for REmote DIctionary Server, created in 2009 by Salvatore Sanfilippo. Both Redis and Memcached are: NoSQL in-memory data structures Written in C Open source Used to speed up applications Support sub-millisecond latency In 2014, Salvatore wrote an excellent StackOverflow post on […].

Open Source 264

Open Source Latency C++ Speed 264

Scalegrid

AUGUST 26, 2020

ScaleGrid MySQL on Azure so you can see which provider offers the best throughput and latency performance. We measure latency in ms 95th percentile latency. During Read-Intensive Workloads, ScaleGrid manages to achieve up to 3 times higher throughput and averages 66% better latency compared to Azure Database.

Azure 299

Azure Benchmarking Database Latency 299

Dynatrace

DECEMBER 27, 2022

In this example, “Reverse proxy” and “Front-end server” are clearly in the critical path. According to Google’s SRE handbook , best practices, there are “ Four Golden Signals ” we can convert into four SLOs for services: reliability, latency, availability, and saturation. Without them, the application won’t work.

Software 272

Software Software Benchmarking Latency 272

The Morning Paper

NOVEMBER 15, 2020

Achieving 100 Gbps intrusion prevention on a single server , Zhao et al., Today’s paper choice is a wonderful example of pushing the state of the art on a single server. This makes the whole system latency sensitive. Moreover, Pigasus wants to do all this on a single server! Can you really do all this on a single server??

Servers 128

Servers Hardware Latency Design 128

CSS Wizardry

AUGUST 7, 2019

A lot of people surmise that TTFB is merely time spent on the server, but that is only a small fraction of the true extent of things. The first—and often most surprising for people to learn—thing that I want to draw your attention to is that TTFB counts one whole round trip of latency. But what else is TTFB?

Latency 269

Latency Ecommerce Servers Mobile 269

InfoQ

JANUARY 26, 2024

Discord optimized its platform to serve over one million online users in a single server while maintaining a responsive user experience.

Servers 101

Servers Tuning Scalability Performance 101

Scalegrid

MARCH 28, 2024

Introduction Caching serves a dual purpose in web development – speeding up client requests and reducing server load. Redis Revealed: An Overview Redis, a renowned open-source, in-memory remote dictionary server, stands out for its diverse data structures and advanced features. Data transfer technology.

Cache 130

Cache Storage Scalability Architecture 130

Dynatrace

JUNE 7, 2023

One of the crucial success factors for delivering cost-efficient and high-quality AI-agent services, following the approach described above, is to closely observe their cost, latency, and reliability. With these latency, reliability, and cost measurements in place, your operations team can now define their own OpenAI dashboards and SLOs.

Monitoring 170

Monitoring Latency Metrics Azure 170

Dynatrace

OCTOBER 10, 2022

Despite the name, serverless computing still uses servers. This means companies can access the exact resources they need whenever they need them, rather than paying for server space and computing power they only need occasionally. If servers reach maximum load and capacity in-house, something has to give before adding new services.

Serverless 171

Serverless Infrastructure Lambda Latency 171

Dynatrace

APRIL 7, 2023

Customers can use AWS Lambda Response Streaming to improve performance for latency-sensitive applications and return larger payload sizes. The difference is the owner of the Lambda function does not have to worry about provisioning and managing servers. Return larger payload sizes.

Lambda 223

Lambda AWS Serverless Latency 223

Scalegrid

DECEMBER 14, 2023

On an abstract level, whenever you use MongoClient to connect, send, or receive a request, it internally uses predefined timeout options to decide how long the application will wait for an initial connection establishment or the response from the server for your request.

Java 130

Java Network Servers Database 130

Scalegrid

APRIL 28, 2020

Does it affect latency? Yes, you can see an increase in latency. So, if you’re hosting your application in AWS or Azure and move your database to DigitalOcean, you will see an increase in latency. However, the average latencies between AWS US-East and the DigitalOcean New York datacenter locations are typically only 17.4

Azure 344

Azure AWS Database Latency 344

Dynatrace

DECEMBER 4, 2023

Resource consumption: Observing computational resource availability and saturation, whether deployed in cloud-native environments like Kubernetes or CPU-enabled servers. Data quality and drift: Monitoring the quality and characteristics of training and runtime data to detect significant changes that might impact model accuracy.

Open Source 264

Open Source Latency Metrics Java 264

Dynatrace

MAY 17, 2023

In this case, the four golden signals (latency, traffic, errors, and saturation) are derived from span attributes and DQL metric queries via Dynatrace Grail™. Based on those insights, they implemented automated validation tasks, and shifted left in their software delivery pipeline.

DevOps 195

DevOps Traffic Latency Best Practices 195

SQL Shack

JULY 10, 2019

By removing disk-based storage and the challenge of copying data in and out of memory, query speeds in SQL Server can be improved by orders of magnitude. TempDB is one of the biggest sources of latency in […].

Servers 79

Servers Latency Storage Speed 79

Dynatrace

MAY 31, 2023

At the lowest level, SLIs provide a view of service availability, latency, performance, and capacity across systems. It detects regressions and deviations from previously observed behavior across metrics such as latency, traffic, error rates, saturation, security coverage, vulnerability risk levels, and memory consumption.

Best Practices 230

Best Practices DevOps Latency Metrics 230

Scalegrid

NOVEMBER 20, 2019

95th Percentile Latency. The 95th percentile latency of queries was also 1.8 times higher when the index creation happened on the master server. The 95th percentile latency of queries was also 1.8 times higher when the index creation happened on the master server. Workload Throughput (Queries Per Second).

Best Practices 239

Best Practices Latency Tuning Database 239

Dynatrace

JANUARY 17, 2024

Cloud-based AI enables organizations to run AI in the cloud without the hassle of managing, provisioning, or housing servers. Containerization enables organizations to package AI applications and dependencies into a single unit, which can be easily deployed on any server with the necessary dependencies. Use containerization.

Strategy 229

Strategy Artificial Intelligence Storage Cloud 229

Dynatrace

OCTOBER 23, 2023

Determining the root cause of these issues can be difficult when the underlying “hardware” is a virtualization software stack rather than a bare-metal server. This presents a challenge for IT operations teams, specifically in identifying and addressing performance issues or planning how to prevent future issues.

Efficiency 222

Efficiency Virtualization Hardware Performance 222

Scalegrid

JANUARY 19, 2024

Recovering from a MongoDB rollback involves locating rollback files, using mongorestore to load data into a separate server, cleansing unneeded data, and importing the data back into the primary cluster, coupled with ongoing monitoring and maintenance of replica sets to maintain system health.

Database 130

Database Network Servers Monitoring 130

Percona

NOVEMBER 3, 2023

PostgreSQL Cluster One coordinator node citus-coord-01 Three worker nodes citus1 citus2 citus3 Hardware AWS Instance Ubuntu Server 20.04, SSD volume type 64-bit (x86) c5.xlarge Steps Provisioning The first step is to provision the four nodes with both PostgreSQL and Citus. psql pgbench <<_eof1_ qecho adding node citus3.

Database 104

Database Benchmarking Latency C++ 104

Dynatrace

SEPTEMBER 18, 2020

High latency or lack of responses. API manager monitoring from the application server perspective, which is what Dynatrace delivers with the WSO2 API Manager monitoring extension, can save you hours of bug hunting time. This increase is clearly correlated with the increased response latencies. Read on to see how it works.

Infrastructure 193

Infrastructure Latency Metrics Analytics 193

Dynatrace

APRIL 25, 2023

However, serverless applications have unique characteristics that make observability more difficult than in traditional server-based applications. Serverless applications have several benefits over server-based applications: Eliminate the need to provision, manage and maintain servers or containers.

Serverless 215

Serverless Lambda Azure AWS 215

Dynatrace

SEPTEMBER 29, 2020

A critical component to this success was that the Dynatrace Team itself uses the Dynatrace Platform to monitor every single Dynatrace cluster in the cloud and trusts the Dynatrace Davis AI to alert in case there are any issues, either with a new feature, a configuration change or with the infrastructure our servers are running on.

Infrastructure 183

Infrastructure Cloud Monitoring AWS 183

CSS Wizardry

MARCH 3, 2019

This includes CDNs, proxy servers, and the like. Once the 60 seconds is up, the browser will head back to the server to revalidate the file. It means ‘do no t serve a copy from cache until you’ve revalidated it with the server and the server said you can use the cached copy’. public and private. Cache-Control: no-cache.

Cache 264

Cache Latency Strategy Servers 264

Scalegrid

OCTOBER 17, 2019

Using a connection pool in each module is hardly efficient: Even with a relatively small number of modules, and a small pool size in each, you end up with a lot of server processes. You either need an extra server (or 3), or your database server(s) must have enough resources to support a connection pooler, in addition to PostgreSQL.

Architecture 200

Architecture Database Latency Servers 200

CSS Wizardry

MAY 31, 2019

Critical assets are far too valuable to leave on someone else’s servers. 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. Risk: Service Shutdowns. to just 3.6s.

Cache 274

Cache Latency Infrastructure Website 274

IO River

NOVEMBER 2, 2023

‍A content delivery network (CDN) is a distributed network of servers strategically located across multiple geographical locations to deliver web content to end users more efficiently. CDNs cache content on edge servers distributed globally, reducing the distance between users and the content they want.‍CDNs

Architecture 52

Architecture Cache Performance Latency 52

IO River

NOVEMBER 2, 2023

A content delivery network (CDN) is a distributed network of servers strategically located across multiple geographical locations to deliver web content to end users more efficiently. When an edge server goes down, end users in the affected region may experience an increase in latency for that specific location.

Architecture 52

Architecture Cache Performance Latency 52