CSS Wizardry

JANUARY 31, 2019

When it comes to network performance, there are two main limiting factors that will slow you down: bandwidth and latency. Latency is defined as…. Where bandwidth deals with capacity, latency is more about speed of transfer 2. As a web user—often transferring lots of smaller files—reductions in latency will almost always be a welcome improvement. and reduction in latency. This lower number is effectively your latency. Put another way, latency cost us 24.6×

Latency 131

Latency Network Speed Servers 131

DZone

APRIL 30, 2020

Currently, publicly available wifi hotspots are the preferred networks for video consumption, but poor network infrastructure also leads to unbearable video buffering and latency. When delivering video over-the-top (OTT), the internet is the principal highway for distributing this content.

Latency 141

Latency Internet Internet Network 141

Randon ASCII

SEPTEMBER 8, 2019

I work quickly on my computer and I get frustrated when I am forced to wait on an operation that should be fast. A persistent nuisance on my over-powered home laptop is that closing windows on the taskbar is slow. I right-click on an entry, wait for the menu to appear, and then select “Close window”. The mouse movement should be the slow part of this but instead I find that the delay before the menu appears is the longest component.

Latency 67

Latency Cache Programming Storage 67

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. SLOG achieves high throughput, strictly serializable ACID transactions at geo-replicated scale for all transactions submitted across the world, all the while achieving low latency for transactions that initiate from a location close to the home region for data they access.

Latency 61

Latency Benchmarking C++ Strategy 61

n0derunner

AUGUST 20, 2020

The post Cross rack network latency in AWS appeared first on n0derunner. I have VMs running on bare-metal instances. Each bare-metal instance is in a separate rack by design (for fault tolerance). The bandwidth is 25GbE however, the response time between the hosts is so high that I need multiple streams to consume that bandwidth. Compared to my local on-prem lab I need many more streams to. Workloads & Benchmarks aws networking

Latency 40

Latency Network AWS Design 40

Scalegrid

JUNE 22, 2020

Compare Latency. On average, ScaleGrid achieves almost 30% lower latency over DigitalOcean for the same deployment configurations. Latency. Now that we’ve compared throughput performance, let’s take a look at ScaleGrid vs. DigitalOcean latency for MySQL.

Database 172

Database Latency Benchmarking Performance 172

Uber Engineering

OCTOBER 17, 2018

To accomplish this, Uber relies heavily on making data-driven decisions at every level, from forecasting rider demand during high traffic events to identifying and addressing bottlenecks … The post Uber’s Big Data Platform: 100+ Petabytes with Minute Latency appeared first on Uber Engineering Blog. Uber is committed to delivering safer and more reliable transportation across our global markets.

Big Data 70

Big Data Latency Transportation Traffic 70

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. ScaleGrid’s MySQL on AWS High Performance deployment can provide 2x-3x the throughput at half the latency of Amazon RDS for MySQL with their added advantage of having 2 read replicas as compared to 1 in RDS. MySQL on AWS Latency Performance Test Averages.

AWS 152

AWS Latency Open Source Performance 152

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” This intensive three day course will provide developers with the knowledge and skills required to write high-performance and low-latency code on today’s modern systems using modern C++11/14/17.

Latency 62

Latency C++ Hardware Cache 62

John McCalpin

DECEMBER 6, 2016

The Xeon Phi x200 (Knights Landing) has a lot of modes of operation (selected at boot time), and the latency and bandwidth characteristics are slightly different for each mode. It is also important to remember that the latency can be different for each physical address, depending on the location of the requesting core, the location of the coherence agent responsible for that address, and the location of the memory controller for that address. MCDRAM maximum latency (ns) 156.1

Latency 40

Latency Testing Systems Hardware 40

VoltDB

JUNE 19, 2017

Unfortunately, this means that the age-old Telco bugbears will rear their ugly heads again, including latency. 5G, as a fundamental requirement, mandates a 1 millisecond latency from the datasource to its destination. With the 5G revolution, operators will need to manage hundreds of edge deployments, and maintain the physical space and hardware to achieve 1ms of latency. This requires 1 ms network latency.

Latency 40

Latency Virtualization Retail Hardware 40

VoltDB

JUNE 19, 2017

Unfortunately, this means that the age-old Telco bugbears will rear their ugly heads again, including latency. 5G, as a fundamental requirement, mandates a 1 millisecond latency from the datasource to its destination. With the 5G revolution, operators will need to manage hundreds of edge deployments, and maintain the physical space and hardware to achieve 1ms of latency. This requires 1 ms network latency.

Latency 40

Latency Virtualization Retail Hardware 40

Scalegrid

NOVEMBER 26, 2020

Performance REDIS Azure benchmark Latency Performance Benchmark Redis Redis Azure ThroughputRedis is an advanced key-value store. In fact, it is the number one key value store and eighth most popular database in the world.

Azure 130

Azure Benchmarking Cache Database 130

DZone

APRIL 7, 2021

performance latency performance engineering native app web analysis continuous deliver real user measurement client side performance device lab user performanceIntroduction.

Network 141

Network Performance Cache Internet 141

Scalegrid

NOVEMBER 20, 2019

95th Percentile Latency. The 95th percentile latency of queries was also 1.8 By having appropriate indexes on your MySQL tables, you can greatly enhance the performance of SELECT queries. But, did you know that adding indexes to your tables in itself is an expensive operation, and may take a long time to complete depending on the size of your tables?

Best Practices 189

Best Practices Latency Tuning Systems 189

DZone

JUNE 2, 2019

java performance scalability latency cpu grpc rpc qpsAlmost every time I present RSocket to an audience, there will be someone asking the question: "How does RSocket compare to gRPC?" " Today we are going to find out.

Benchmarking 219

Benchmarking Latency Scalability Java 219

Scalegrid

OCTOBER 17, 2019

While there is plenty of well-documented benefits to using a connection pooler, there are some arguments to be made against using one: Introducing a middleware in the communication inevitably introduces some latency. A long time ago, in a galaxy far far away, ‘threads’ were a programming novelty rarely used and seldom trusted. In that environment, the first PostgreSQL developers decided forking a process for each connection to the database is the safest choice.

Processing 166

Processing Latency Database Servers 166

Scalegrid

DECEMBER 16, 2019

We ran performance tests for MongoDB on DigitalOcean vs. AWS vs. Azure and found that DigitalOcean performance was in line with, if not better, on both high throughput and low latency in the deployment. They even offer amazingly low latency from Amazon AWS US-East to the DigitalOcean New York datacenter, which is great for applications that are running their front on mid-tier on AWS, but would like to use DigitalOcean for their MongoDB clusters.

Virtualization 157

Virtualization Database Latency Strategy 157

Scalegrid

NOVEMBER 25, 2019

ScyllaDB offers significantly lower latency which allows you to process a high volume of data with minimal delay. percentile latency is up to 11X better than Cassandra on AWS EC2 bare metal. ScyllaDB is an open-source distributed NoSQL data store, reimplemented from the popular Apache Cassandra database. Released just four years ago in 2015, Scylla has averaged over 220% year-over-year growth in popularity according to DB-Engines.

Big Data 156

Big Data Database Open Source Google 156

DZone

MAY 1, 2020

performance user experience location data website performance monitoring latency monitorSo you finally launched your service worldwide, great!

Servers 141

Servers Latency Website Performance Website 141

High Scalability

OCTOBER 29, 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. AWS is the #1 cloud provider for open-source database hosting, and the go-to cloud for MySQL deployments.

AWS 162

AWS Open Source Database Latency 162

John McCalpin

APRIL 2, 2020

This system also had significantly lower memory latency than many contemporary systems (which were still using front-side bus architectures and separate “NorthBridge” chips). Computer Architecture Performance memory bandwidth memory latency STREAM benchmark

Energy 56

Energy Cache Systems Performance 56

CSS Wizardry

APRIL 22, 2020

This is because file-size is only one aspect of web performance, and whatever the file-size is, the resource is still sat on top of a lot of other factors and constants—latency, packet loss, etc.

Latency 231

Latency Servers Website Games 231

CSS Wizardry

MAY 31, 2019

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. Okay, so not exactly terrifying, but Trainline, a client of mine, found that by reducing latency by 300ms, customers spent an extra £8m a year. On a slower, higher-latency connection, the story is much, mush worse.

Cache 219

Cache Latency Infrastructure Website 219

John McCalpin

JANUARY 9, 2019

This week I updated three of those posts — two really old ones (primarily of interest to computer architecture historians), and one from 2018: July 2012: Local and Remote Memory Latency on AMD Processors in 2-socket and 4-socket servers. Computer Architecture Performance memory bandwidth memory latency Xeon PhiAs part of my attempt to become organized in 2019, I found several draft blog entries that had never been completed and made public.

Servers 40

Servers Latency Architecture Performance 40

Scalegrid

AUGUST 26, 2020

In this blog post, we compare Azure Database for MySQL vs. 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. Latency. Latency. Latency.

Azure 168

Azure Benchmarking Database Latency 168

All Things Distributed

APRIL 17, 2013

While DynamoDB already allows you to perform low-latency queries based on your tableâ??s This gives you the ability to perform richer queries while still meeting the low-latency demands of responsive, scalable applications. Consistent, rock solid low-latency database performance is important too, because social games are highly interactive. s will exhibit the same latency and throughput performance as those without any indexes. All Things Distributed.

Games 88

Games Cloud Scalability Database 88

DZone

OCTOBER 31, 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. cloud performance sql aws mysql amazon replication latency amazon rds throughputImprove AWS performance! AWS is the #1 cloud provider for open-source database hosting, and the go-to cloud for MySQL deployments.

Open Source 30

Open Source Infrastructure Database AWS 30

High Scalability

FEBRUARY 17, 2021

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. The latency table shows that 99th percentile latency for Yugabyte is quite high compared to others (lower is better).

Benchmarking 227

Benchmarking Latency Testing C++ 227

John McCalpin

OCTOBER 16, 2016

Computer Architecture Computer Hardware Performance cache DRAM high performance computing memory bandwidth memory latency STREAM benchmark“Memory Bandwidth and System Balance in HPC Systems” If you are planning to attend the SuperComputing 2016 conference in Salt Lake City next month, be sure to reserve a spot on your calendar for my talk on Wednesday afternoon (4:15pm-5:00pm).

Systems 40

Systems Technology Technology Latency 40

Alex Russell

MARCH 6, 2021

Sadly, data on latency is harder to get, even from Google's perch, so progress there is somewhat more difficult to judge. TL;DR: A lot has changed since 2017 when we last estimated a global baseline resource per-page resource budget of 130-170KiB.

Performance 112

Performance Network Benchmarking Cache 112

High Scalability

OCTOBER 18, 2019

It is difficult to fault their argument – as it’s absolutely true that: Connection Pool Connection Pooler Connection Pooling Database DevOps Forking Language Library Latency Linux Multithreaded Performance Postgres Web Applications administrator application architecture cluster connection-pool database database performance online website deployment developer failure multilanguage multithreading open source postgresql sql

Programming 32

Programming Processing Open Source Latency 32

VoltDB

JUNE 9, 2017

No Compromises Performance Personalization Real-time low latency real-time analytics telco telco strategy telecomHistorically, telco analytics have been limited and difficult. Telco networks and the systems that support those networks are some of the most advanced technology solutions in existence.

Strategy 40

Strategy Analytics Network IoT 40

VoltDB

JUNE 9, 2017

No Compromises Performance Personalization Real-time Vlog low latency real-time analytics telco telco strategy telecomHistorically, telco analytics have been limited and difficult. Telco networks and the systems that support those networks are some of the most advanced technology solutions in existence.

Strategy 40

Strategy Analytics Network IoT 40

High Scalability

SEPTEMBER 1, 2020

In this blog post, we compare Azure Database for MySQL vs. 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.

Azure 151

Azure Benchmarking Database Latency 151

All Things Distributed

MARCH 2, 2011

Japanese companies and consumers have become used to low latency and high-speed networking available between their businesses, residences, and mobile devices. The advanced Asia Pacific network infrastructure also makes the AWS Tokyo Region a viable low-latency option for customers from South Korea. All Things Distributed. Werner Vogels weblog on building scalable and robust distributed systems. Expanding the Cloud - Introducing the AWS Asia Pacific (Tokyo) Region.

AWS 86

AWS Cloud Games Storage 86

SQL Shack

OCTOBER 7, 2020

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 […].

Latency 95

Latency Servers Performance Testing 95

High Scalability

DECEMBER 3, 2019

AWS Add Index Azure Create Index Database DevOps EC2 Latency Master-Slave MySQL MySQL Index MySQL Performance MySQL Table Performance Performance Test SELECT Queries administration benchmark benchmarks best platform cloud data management database database replication database scalability deployment ec2 high availability hosting indexing master-slave mysql mysql cluster mysql load nodes optimization scalabitliy sql testing uptime

Best Practices 24

Best Practices Systems Processing Benchmarking 24

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.

Azure 272

Azure Database AWS Latency 272

The Netflix TechBlog

MARCH 1, 2021

It supports both high throughput services that consume hundreds of thousands of CPUs at a time, and latency-sensitive workloads where humans are waiting for the results of a computation. Stratum manages function execution latency in a few ways: Resource pools.

Media 203

Media Latency Serverless Social Media 203

CSS Wizardry

AUGUST 7, 2019

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. The reason is because mobile networks are, as a rule, high latency connections. If there is one key thing I’m keen for your to take from this post, its is that TTFB is affected by latency. Last mile latency deals with the disproportionate complexity toward the terminus of a connection.

Latency 218

Latency Servers Ecommerce Mobile 218

All Things Distributed

DECEMBER 3, 2009

This new Region consists of multiple Availability Zones and provides low-latency access to the AWS services from for example the Bay Area. Operation costs are often different based on location and, as such, the pricing for services may vary somewhat between Regions, giving our customers the power to make trade-offs between, for example, cost and latency. All Things Distributed. Werner Vogels weblog on building scalable and robust distributed systems.

AWS 60

AWS Cloud Storage Scalability 60

InfoQ

AUGUST 10, 2020

This reduced median latency and data transfer by more than 30%, Dropbox engineers Rishabh Jain and Daniel Reiter Horn maintain.

Latency 71

Latency Google Engineering Performance 71