KeyCDN

MARCH 10, 2021

You can quickly check the response headers using Chrome DevTools or a simple curl command like the one below: curl -I [link] 200Server: keycdn-engineDate: Tue, 17 Apr 2018 18:35:44 GMTContent-Type: image/svg+xmlContent-Length: 12557Connection: keep-aliveVary: Accept-EncodingLast-Modified: Mon, 26 Sep 2016 12:15:44 GMTETag: "57e91170-310d"Expires: (..)

Latency 110

Latency Internet Internet Speed 110

Brendan Gregg

FEBRUARY 28, 2023

Make sure your system can handle next-generation DRAM,” [link] Nov 2011 - [Hruska 12] Joel Hruska, “The future of CPU scaling: Exploring options on the cutting edge,” [link] Feb 2012 - [Gregg 13] Brendan Gregg, “Blazing Performance with Flame Graphs,” [link] 2013 - [Shimpi 13] Anand Lal Shimpi, “Seagate to Ship 5TB HDD in 2014 using Shingled Magnetic (..)

Performance 103

Performance Latency Cache Virtualization 103

Scalegrid

FEBRUARY 11, 2019

Guillermo Rauch (@rauchg) December 18, 2018. To learn how to speed up your WordPress installation using Redis Caching, check out our Using Redis Object Cache to Speed Up Your WordPress Installation post. Powered by `php-fpm` (soon as a Lambda layer directly). ? Micro SQL instance hosted on @scalegridio (cheap!)

Serverless 138

Serverless Azure Database Cache 138

Abhishek Tiwari

DECEMBER 27, 2017

There are several emerging data trends that will define the future of ETL in 2018. In 2018, we anticipate that ETL will either lose relevance or the ETL process will disintegrate and be consumed by new data architectures. In contrast, Alluxio a middleware for data access - think Alluxio storage layer as fast cache.

Big Data 49

Big Data Artificial Intelligence Storage Hardware 49

Brendan Gregg

AUGUST 29, 2021

1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 Reads usually have apps waiting on them; writes may not (write-back caching). Counting cache functions. 17 48011 [.].

Cache 78

Cache C++ AWS Java 78

CSS - Tricks

APRIL 1, 2021

Google’s industry benchmarks from 2018 also provide a striking breakdown of how each second of loading affects bounce rates. Source: Google /SOASTA Research, 2018. Compressing, minifying and caching assets. The final thing we can check is caching. billion if the site slowed down by just one second. Text-based assets.

Cache 92

Cache Social Media Media Network 92

Smashing Magazine

JULY 29, 2019

A 2018 study by cable.co.uk found that Zimbabwe was the most expensive country in the world for mobile data, where 1 GB cost an average of $75.20, ranging from $12.50 Meanwhile, a study of the cost of broadband in 2018 shows that a broadband connection in Niger costs $263 ‘per megabit per month’. Let’s talk about caching.

Cache 97

Cache Mobile Google Network 97

Smashing Magazine

NOVEMBER 22, 2021

Back in 2018 Google announced that sites with especially slow pages on mobile would be penalized. Another benefit of moving computations from browsers to servers is that the results of these computations can often be cached and reused between sessions even for unrelated visitors, thus reducing per-session execution time dramatically.

Website 129

Website Performance Google Website Performance 129

Jos

JUNE 2, 2018

presented in Google IO 2018 ( source ) These tools make it easier to determine where we need to put emphasis to improve our sites. How would you architecture a non-trivial size web project (client, server, databases, caching layer)? They can be run as a one-off or integrated in our development and deployment pipelines.

Performance 237

Performance Speed Google Media 237

The Netflix TechBlog

DECEMBER 17, 2019

This way, log event processing can resume event-by-event afterwards, eventually discovering the watermarks, without ever needing to cache log event entries. Delta is used in production since 2018 for datastore synchronization and event processing use cases in Netflix studio applications.

Database 223

Database Traffic Transportation Open Source 223

The Netflix TechBlog

DECEMBER 17, 2019

This way, log event processing can resume event-by-event afterwards, eventually discovering the watermarks, without ever needing to cache log event entries. Delta is used in production since 2018 for datastore synchronization and event processing use cases in Netflix studio applications.

Database 209

Database Traffic Transportation Open Source 209

MachMetrics

DECEMBER 14, 2019

Similar to our article Average Page Load Times for 2018 , we’ll go over the averages for metrics and help you determine if your site is faster or slower than average. It is typically reduced via server-side optimizations, such as enabling caching and database indexes. Source: ThinkWithGoogle. seconds on desktop and 2.59

Best Practices 105

Best Practices Speed Mobile Google 105

Speed Curve

FEBRUARY 5, 2024

Charlie Vazac introduced server timing in a Performance Calendar post circa 2018. Caching the base page/HTML is common, and it should have a positive impact on backend times. Key things to understand from your CDN Cache Hit/Cache Miss – Was the resource served from the edge, or did the request have to go to origin?

Servers 60

Servers Cache Retail Benchmarking 60

Randon ASCII

FEBRUARY 25, 2018

See the end of the post for an October 2018 bug fix update, or read the whole story: Flaky failures are the worst. This was starting to look like a Windows file cache bug. Maybe something to do with multi-socket coherency of the disk and cache or ??? Update, October 2018.

Programming 79

Programming Hardware Cache Code 79

MachMetrics

JUNE 30, 2021

Pingdom, 2018. Thanks to the awesome caching plugins available for WordPress will make your site much faster and make your pages feel lightweight when configured correctly. You will still be configuring your site caching and organize the assets in such a way that the page passes web vital tests + and loads a lot quicker.

Cache 78

Cache Speed Google Website 78

Alex Russell

APRIL 29, 2021

After years of standards discussion and the first delivered to other platforms in 2018, iOS 14.5 April 2018 , but not usable until several releases later). An extension to Service Workers that enables browsers to present users with cached content when offline. finally shipped Audio Worklets this week. Pointer Lock.

Media 145

Media Games Education Engineering 145

The Morning Paper

JUNE 20, 2019

In total, there were 112 such incidents over the period March – September 2018 (not all of them affecting external customers). This is a study of every high severity production incident at Microsoft Azure services over a span of six months, where the root cause of that incident was a software bug. Constant-value setting incidents.

Cloud 81

Cloud Azure Cache C++ 81

KeyCDN

SEPTEMBER 12, 2019

KeyCDN’s Cache Enabler plugin is fully compatible the HTML attributes that make images responsive. It also allows for additional control over the caching of your images as well as hotlink protection. The Cache Enabler plugin then delivers WebP images based to supported browsers. jpg 480 KB 407 KB 43 KB 89% jpg-to-webp-2.jpg

Social Media 106

Social Media Media Google Website 106

Nick Desaulniers

JUNE 2, 2018

ccache , the compiler cache, is a fantastic way to speed up build times for C and C++ code that I previously recommended. Usually when this happens with ccache, there’s something non-deterministic about the builds that prevents cache hits. . $ Sat Mar 17 03:04:59 UTC 2018. Cold Cache. kB max cache size 5.0

Speed 46

Speed Cache C++ Systems 46

Rigor

SEPTEMBER 3, 2019

In one high-profile example, Amazon dealt with significant outages on Prime Day 2018 , which may have cost them as much as $99 million in sales. JCrew’s site went down on Black Friday 2018 for five hours , costing the company more than $700,000 in sales and impacting approximately 323,000 shoppers. Case studies abound.

Website 74

Website Cache Traffic Ecommerce 74

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. India became a 4G-centric market sometime in 2018. The Moto G4 , for example. 2] Getting accurate global information that isn't artificially reduced to averages remains an ongoing challenge.

Performance 127

Performance Network Metrics Cache 127

Brendan Gregg

FEBRUARY 28, 2023

Make sure your system can handle next-generation DRAM,” [link] , Nov 2011 [Hruska 12] Joel Hruska, “The future of CPU scaling: Exploring options on the cutting edge,” [link] , Feb 2012 [Gregg 13] Brendan Gregg, “Blazing Performance with Flame Graphs,” [link] , 2013 [Shimpi 13] Anand Lal Shimpi, “Seagate to Ship 5TB HDD in 2014 using Shingled Magnetic (..)

Performance 52

Performance Latency Cache Virtualization 52

KeyCDN

OCTOBER 24, 2018

As of August 2018, Helsinki alone had a population of almost 650,000 people. However, now with the Helsinki edge server in production, this helps further close the gap between visitors who live in Finland and the nearest KeyCDN POP they have access to.

Internet 48

Internet Internet Speed Network 48

Brendan Gregg

FEBRUARY 9, 2018

This overhead can be reduced by A) pcid, fully available in Linux 4.14, and B) Huge pages. - **Cache access pattern**: the overheads are exacerbated by certain access patterns that switch from caching well to caching a little less well. virtual (bgregg-c5.9xl-i-xxx) 02/09/2018 _x86_64_ (36 CPU) 05:24:51 PM proc/s cswch/s.

Performance 72

Performance Benchmarking Cache Tuning 72

Brendan Gregg

AUGUST 18, 2019

6 * 7 * Copyright 2018 Netflix, Inc. the "License") 9 * 10 * 13-Sep-2018 Brendan Gregg Created this. There are also two modes visible, one between 1 and 2 milliseconds, and another between 8 and 16 milliseconds: this sounds like cache hits and cache misses. 1 /* 2 * biolatency.bt Block I/O latency as a histogram.

Latency 57

Latency C++ Cache Programming 57

SQL Server According to Bob

FEBRUARY 5, 2018

FILE cache type was the default leading to incorrect principal errors. The klist utility is helpful to show things like the currently cached Kerberos information. Ticket cache: KEYRING:persistent:0:0. 02/05/2018 09:11:18 02/05/2018 19:11:18 krbtgt/DOMAINNAME@DOMAINNAME. renew until 02/06/2018 09:11:15.

Servers 40

Servers Code Cache Traffic 40

Brendan Gregg

AUGUST 29, 2021

1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 Reads usually have apps waiting on them; writes may not (write-back caching). This is "cache busting." 17 48011 [.]

Cache 40

Cache C++ AWS Systems 40

The Morning Paper

DECEMBER 1, 2019

Memory might be durable, but… …it is expected that caches and registers will remain volatile. Moreover, for better performance, the processor may change the order in which writes reach the NVRAM, making it difficult for the NVRAM to even reflect a consistent prefix of the computation.

Efficiency 60

Efficiency Cache C++ Performance 60

Percona

DECEMBER 5, 2022

ProxySQL is a very useful tool for gaining high availability, load balancing, query routing, query caching, query rewriting, multiplexing, and data masking. Your MySQL connection id is 1 Server version: 5.5.30 (ProxySQL Admin Module) Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Commands end with ; or g.

Servers 60

Servers Cache C++ Metrics 60

Dean Hume

APRIL 24, 2018

Without effective caching on the client, the server will see an increase in workload, more CPU usage and ultimately increased latency for the end user. They allow you to cache resources on the user's device when they visit your site for the first time. This is where service workers can make a difference. Show me the money!

Energy 40

Energy Cache Traffic Website 40

Dean Hume

APRIL 24, 2018

Without effective caching on the client, the server will see an increase in workload, more CPU usage and ultimately increased latency for the end user. They allow you to cache resources on the user's device when they visit your site for the first time. This is where service workers can make a difference. Show me the money!

Energy 40

Energy Cache Traffic Website 40

Dean Hume

APRIL 24, 2018

Without effective caching on the client, the server will see an increase in workload, more CPU usage and ultimately increased latency for the end user. They allow you to cache resources on the user's device when they visit your site for the first time. This is where service workers can make a difference. Show me the money!

Energy 40

Energy Cache Traffic Website 40

Smashing Magazine

SEPTEMBER 6, 2021

This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. Upon receipt of a valid Alt-Svc header indicating HTTP/3 support, the browser will cache this and try to set up a QUIC connection from then on.

Network 108

Network Servers Cache Traffic 108

Percona

MAY 1, 2023

This blog was originally published in August 2018 and was updated in May 2023. Connection pooling: Minimizing connection overhead and improving response times for frequently accessed data by implementing mechanisms for connection pooling and caching strategies. It is just a guideline, not the exact allocated memory or cache size.

Tuning 52

Tuning Database Efficiency Performance 52

ACM Sigarch

MARCH 18, 2019

For example, how many buffers must a cache have to record outstanding misses if it receives 2 memory references per cycle at 2.5 He is a fellow of IEEE and the ACM, serves as Chair of the Computer Community Consortium (2018-20) and served as Wisconsin Computer Sciences Department Chair 2014-17. Figure 2: (Sub-)System for Little’s Law.

Systems 60

Systems Latency Performance Analytics 60

Smashing Magazine

JUNE 30, 2021

First and foremost, this allows you to implement arbitrarily complex caching behavior, but it has also been extended to let you tap into long-running background fetches, push notifications, and other functionality that requires code to run without an associated page. The DOM actor now updates the DOM according to the new state object.

Games 145

Games Architecture Code C++ 145

Percona

AUGUST 10, 2018

sec < 2018-08-06 07:22:35.199 EDT > LOG: automatic analyze of table "vactest.scott.employee" system usage: CPU 0.00s/0.02u sec elapsed 0.15 sec < 2018-08-06 07:22:35.199 EDT > LOG: automatic analyze of table "vactest.scott.employee" system usage: CPU 0.00s/0.02u sec elapsed 0.15 You May Also Like.

Tuning 46

Tuning Cache Database Storage 46