Percona

SEPTEMBER 1, 2023

This reduction in latency ensures that applications and websites provide a more rapid and responsive user experience. These issues often arise from suboptimal query design, missing or ineffective indexes, or dealing with large datasets. A finely tuned database processes queries more efficiently, leading to swifter results.

Tuning 52

Tuning Database Performance Hardware 52

The Morning Paper

OCTOBER 6, 2019

Prediction serving latency matters. Booking.com estimate the value delivered by a model through randomized controlled trials which measure the impact on business metrics. clicks) that fails to convert into the desired business metric (e.g. clicks) that fails to convert into the desired business metric (e.g.

Latency 102

Latency Metrics Cache Design 102

Brendan Gregg

AUGUST 18, 2019

For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. bpftrace is suited for this kind of analysis: decomposing metrics into distributions or per-event logs, and creating new metrics for visibility into blind spots. 1 /* 2 * biolatency.bt

Latency 68

Latency C++ Cache Programming 68

The Netflix TechBlog

NOVEMBER 9, 2022

A quick canary test was free of errors and showed lower latency, which is expected given that our standard canary setup routes an equal amount of traffic to both the baseline running on 4xl and the canary on 12xl. What’s worse, average latency degraded by more than 50%, with both CPU and latency patterns becoming more “choppy.”

Hardware 363

Hardware Cache Performance Latency 363

All Things Distributed

NOVEMBER 26, 2013

About 5 years ago, I introduced you to AWS Availability Zones, which are distinct locations within a Region that are engineered to be insulated from failures in other Availability Zones and provide inexpensive, low latency network connectivity to other Availability Zones in the same region.

Cloud 145

Cloud AWS Traffic Latency 145

SQL Performance

SEPTEMBER 17, 2019

Consideration for backing up your Report Designer files such as; rdl,rds,dv,ds, rptproj, and.sln files should be given. Disk latency for ReportServer and ReportServerTempDB are very important. Caches of report results are stored in the ReportServerTempDB database and I/O performance can become an issue here. Rssvrpolicy.config.

Tuning 67

Tuning Servers Database Best Practices 67

Smashing Magazine

AUGUST 3, 2023

These pages serve as a pivotal tool in our digital marketing strategy, not only providing valuable information about our services but also designed to be easily discoverable through search engines. Google’s Core Web Vitals is a set of performance metrics that site owners can use to evaluate performance and diagnose performance issues.

Performance 75

Performance Cache Traffic Metrics 75

The Morning Paper

FEBRUARY 6, 2020

.’ Stateless is fine until you need state, at which point the coarse-grained solutions offered by current platforms limit the kinds of application designs that work well. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access.

Serverless 98

Serverless Lambda Cache Latency 98

All Things Distributed

SEPTEMBER 3, 2013

Amazon ElastiCache is a fully managed, in-memory caching service for customers to optimize the latency, performance and cost of their read workloads. Today, we are further expanding the choices available for designing and developing highly scalable and high performance apps.

Cache 129

Cache Cloud Performance Retail 129

CSS - Tricks

APRIL 1, 2021

Site performance is potentially the most important metric. Having a slow site might leave you on page 452 of search results, regardless of any other metric. I’m going to update my referenced URL to the new site to help decrease latency that adds drag to the initial page load. Compressing, minifying and caching assets.

Cache 92

Cache Social Media Media Website 92

Smashing Magazine

MAY 16, 2022

The header is constructed via a name with an optional description and/or metric value. Web browsers expose a global Performance Timeline API to inspect details about specific metrics/events that have happened during the page lifecycle. Any server or proxy can add this header to the request to provide inspectable data.

Servers 95

Servers Monitoring Cache Network 95

Highly Scalable

AUGUST 20, 2013

This system has been designed to supplement and succeed the existing Hadoop-based system that had too high latency of data processing and too high maintenance costs. The design of the in-stream processing engine itself was driven by the following requirements: SQL-like functionality. Fault-tolerance.

Big Data 154

Big Data Processing Lambda Database 154

The Morning Paper

SEPTEMBER 10, 2019

That’s hard for many reasons, including the differing trade-offs between throughput and latency that need to be made across the use cases. to understand YouTube video performance) drive tens of thousands of canned (known in advance) queries per second, that need to be served with latency in the tens of milliseconds.

Analytics 75

Analytics Latency Cache Google 75

The Morning Paper

MARCH 17, 2020

higher latency and lower bandwidth)… We have found the actual behavior of Optane DIMMs to be more complicated and nuanced than the "slower, persistent DRAM" label would suggest. The read latency for Optane is 2x-3x higher than DRAM. Use non-temporal stores for large transfers, and control cache evictions.

Scalability 59

Scalability Latency Cache Media 59

Alex Russell

DECEMBER 18, 2022

From Edge's telemetry, we see that nearly half of devices fall into our "low-end" designation, which means that they have: HDD s (not SSD s). These devices feature: Eight slow, big.LITTLE ARM cores (A75+A55, or A73+A53) built on last-generation processes with very little cache. 2-4 CPU cores. 4GB RAM or less. 4GiB of RAM.

Performance 113

Performance Network Mobile Latency 113

Alex Russell

MARCH 6, 2021

The scale of the effect can be deeply situational or hard to suss out without solid metrics. A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. The Moto G4 , for example. Don't pay a lot for an Android-shaped muffler.

Performance 124

Performance Network Cache Metrics 124

John McCalpin

APRIL 2, 2020

The presentation discusses a family of simple performance models that I developed over the last 20 years — originally in support of processor and system design at SGI (1996-1999), IBM (1999-2005), and AMD (2006-2008), but more recently in support of system procurements at The Texas Advanced Computing Center (TACC) (2009-present).

Benchmarking 59

Benchmarking Performance Latency Architecture 59

All Things Distributed

JUNE 21, 2018

Further, with the growth and scale of Amazon.com, boundless horizontal scale needed to be a key design point--scaling up simply wasn't an option. 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

All Things Distributed

JANUARY 18, 2012

a Fast and Scalable NoSQL Database Service Designed for Internet Scale Applications. Today is a very exciting day as we release Amazon DynamoDB , a fast, highly reliable and cost-effective NoSQL database service designed for internet scale applications. Amazon DynamoDB offers low, predictable latencies at any scale. Comments ().

Scalability 167

Scalability Database Ecommerce Latency 167

Alex Russell

APRIL 29, 2021

Another window into this question is provided by the Web Confluence Metrics project. Apple's policy against browser engine choice adds years of delays beyond the (expected) delay of design iteration, specification authoring, and browser feature development. This adds to the expense of developing for iOS. Converging Views.

Media 145

Media Games Education Engineering 145

Highly Scalable

SEPTEMBER 18, 2012

Historically, NoSQL paid a lot of attention to tradeoffs between consistency, fault-tolerance and performance to serve geographically distributed systems, low-latency or highly available applications. Read/Write latency. Read/Write requests are processes with a minimal latency. Data Placement. Read/Write scalability.

Database 213

Database Latency C++ Scalability 213

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 107

Performance Network Latency Servers 107

SQL Server According to Bob

JANUARY 11, 2020

Stable media is commonly physical disk storage, but other devices and certain caching facilities qualify as well. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. This cache is often supported by a battery-powered backup facility.

Servers 40

Servers Cache Media Hardware 40

Alex Russell

OCTOBER 22, 2017

This helps support executive sponsors who then have meaningful metrics to point to in justifying the investments being made. Very rarely have we seen a team succeed that doesn’t set budgets, gather RUM metrics, and carry representative customer devices. Teams with budgets also find it easier to track and graph progress.

Performance 68

Performance Benchmarking Network Mobile 68

CSS - Tricks

MAY 3, 2021

For one thing, the design of WebPageTest is now quite nice. An amazing achievement, to be sure, but it also feels good to me that WebPageTest is now owned by Catchpoint with Patrick being there himself on the project. A welcome upgrade, let’s say. So yes, WebPageTest is still here. It’s still free. Linux; Android 6.0.1;

Transportation 86

Transportation Cache Google Mobile 86

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. IETF’s QUIC is technically very different from Google’s QUIC.

Transportation 145

Transportation Internet Internet Network 145

The Netflix TechBlog

MARCH 6, 2019

Video encoding is what MezzFS was originally designed for and remains one of its canonical use cases, so we’ll focus on video encoding to describe the problem that MezzFS solves. Disk Caching? — ? MezzFS can be configured to cache objects on the local disk. Regional caching? —?Netflix What problem are we solving?

Media 214

Media Storage Processing Cache 214

Smashing Magazine

JANUARY 11, 2021

LogRocket tracks key metrics, incl. Performance isn’t just a technical concern: it affects everything from accessibility to usability to search engine optimization, and when baking it into the workflow, design decisions have to be informed by their performance implications. Getting Ready: Planning And Metrics. Table Of Contents.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Performance isn’t just a technical concern: it affects everything from accessibility to usability to search engine optimization, and when baking it into the workflow, design decisions have to be informed by their performance implications. Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. Quick Wins.

Performance 145

Performance Cache Network Metrics 145

John McCalpin

APRIL 25, 2023

The primary metric for memory bandwidth in multicore processors is that maximum sustained performance when using many cores. This metric is interesting because we don’t always have the luxury of parallelizing every application we run, and our operating systems almost always process each call (e.g.,

Benchmarking 97

Benchmarking Cache Latency Tuning 97

Smashing Magazine

JANUARY 7, 2019

Performance isn’t just a technical concern: it matters, and when baking it into the workflow, design decisions have to be informed by their performance implications. Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. Table Of Contents. Setting Realistic Goals. Defining The Environment. Build Optimizations.

Performance 105

Performance Cache Metrics Network 105