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 279

Open Source Metrics Java Latency 279

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

The Netflix TechBlog

OCTOBER 8, 2024

Rajiv Shringi Vinay Chella Kaidan Fullerton Oleksii Tkachuk Joey Lynch Introduction As Netflix continues to expand and diversify into various sectors like Video on Demand and Gaming , the ability to ingest and store vast amounts of temporal data — often reaching petabytes — with millisecond access latency has become increasingly vital.

Latency 239

Latency Storage Traffic Tuning 239

The Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. Once all documents have been indexed with no errors, we swap the alias from the currently active index to the newly built index. The graph has two requirements. Search Indexer.

Database 246

Database Cache Servers Performance 246

The Netflix TechBlog

AUGUST 22, 2019

The challenges with service management included: Stale documentation OS Updates High cognitive overhead A lack of continuous testing Scaling Image Creation Our existing AMI baking tool Aminator does not support Windows so we had to leverage other tools. Services are more reliable, testable, and documented.

DevOps 210

DevOps AWS Tuning Infrastructure 210

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 111

Servers Monitoring Cache Network 111

The Netflix TechBlog

SEPTEMBER 2, 2020

As a request flows between services, each distinct unit of work is documented as a span. A span: Represents a unit of work, such as a network call from one service to another (a client/server relationship) or a purely internal action (e.g., starting and finishing a method). Is this an anomaly or are we dealing with a pattern?

Latency 298

Latency Transportation Engineering Traffic 298

Scalegrid

DECEMBER 16, 2019

It’s a cross-platform document-oriented database that uses JSON-like documents with schema, and is leveraged broadly across startup apps up to enterprise-level businesses developing modern apps. Sharding is ideal for very large data sets or high throughput deployments that require more capacity that you can get with a single server.

Azure 187

Azure AWS Database Latency 187

The Netflix TechBlog

JUNE 13, 2023

By collecting and analyzing key performance metrics of the service over time, we can assess the impact of the new changes and determine if they meet the availability, latency, and performance requirements. One can perform this comparison live on the request path or offline based on the latency requirements of the particular use case.

Traffic 285

Traffic Metrics Systems Strategy 285

The Netflix TechBlog

SEPTEMBER 8, 2020

For each route we migrated, we wanted to make sure we were not introducing any regressions: either in the form of missing (or worse, wrong) data, or by increasing the latency of each endpoint. You can find a lot more details about how this works in the Spinnaker canaries documentation. This meant that data that was static (e.g.

Latency 241

Latency Cache Java Traffic 241

Dynatrace

JANUARY 31, 2024

million AI server units annually by 2027, consuming 75.4+ For production models, this provides observability of service-level agreement (SLA) performance metrics, such as token consumption, latency, availability, response time, and error count. For example, generating an image requires as much power as fully charging your smartphone.

Cache 276

Cache Azure Infrastructure Monitoring 276

Scalegrid

MAY 11, 2024

The default storage engine in earlier versions was MMAPv1, which utilized memory-mapped files and document-level locking. However, it is limited by the available free memory amount, and all data is lost when the server stops. It features document-level locking, prefix compression, and collection-level configuration options.

Storage 130

Storage Engineering Cache Database 130

All Things Distributed

JANUARY 18, 2012

Behind the scenes, Amazon DynamoDB automatically spreads the data and traffic for a table over a sufficient number of servers to meet the request capacity specified by the customer. Amazon DynamoDB offers low, predictable latencies at any scale. s read latency, particularly as dataset sizes grow. Consistency. SimpleDBâ??s

Scalability 162

Scalability Database Ecommerce Latency 162

Percona

MARCH 29, 2023

Percona Server for MongoDB (PSMDB) supports all types of compression and enterprise-grade features for free. OS: CentOS Linux 7 I’ve used mgenerate command to insert a sample document. This can further reduce the amount of data that needs to be transmitted between server and client over the network. I am using PSMDB 6.0.4

Storage 130

Storage Network Open Source Latency 130

Alex Russell

FEBRUARY 28, 2022

Tim Berners-Lee tweets that 'This is for everyone' at the 2012 Olympic Games opening ceremony using the NeXT computer he used to build the first browser and web server. Regardless of architecture, Gmail needs to send an HTTP request to the server and update some HTML when the server replies. This Is for Everyone #.

Performance 113

Performance Latency Architecture Network 113

Dynatrace

JULY 10, 2019

OneAgents are optimized to send data to the Dynatrace servers with the smallest possible impact, querying the metrics every minute, and the data is a first-class citizen for the Dynatrace AI root-cause analysis. For examples of writing Custom devices, take a look at our document or take inspiration from our GitHub repository.

Java 197

Java Best Practices Metrics Azure 197

Percona

MARCH 13, 2023

There is a section in our Documentation ( Introduction to Serverless PostgreSQL ) and a short overview of the primary components: Page Server The storage server with the primary goal of storing all data pages and WAL records Safe Keeper A component to store WAL records in memory (to reduce latency). 50051 2.

Serverless 144

Serverless C++ Storage Servers 144

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

MAY 2, 2023

Questions Q: I have a MySQL server with 500 GB of RAM; my data set is 100 GB. 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. Q: I have a MySQL server, and my application is writing at a rate of 100 MB/hour in my redo logs.

Social Media 145

Social Media Database Servers Cache 145

Scalegrid

JUNE 18, 2019

In this blog, we’ll show you how to connect to a MongoDB server configured with self-signed certificates for SSL using both the Ruby MongoDB driver and the popular Object-Document-Mapper (ODM) mongoid. The connection options available for the driver are documented here , and the options we will need are: :ssl. ssl_verify.

C++ 100

C++ Servers Database Testing 100

The Netflix TechBlog

MARCH 13, 2020

Compared to the most recent master version of libaom (AV1 reference software), SVT-AV1 is similar in compression efficiency and at the same time achieves significantly lower encoding latency on multi-core platforms when using its inherent parallelization capabilities.

Open Source 159

Open Source Efficiency C++ Speed 159

Percona

MARCH 20, 2023

For documentation, the sysbench commands are: Test1 sysbench./src/lua/windmills/oltp_read.lua Let us take a look also the latency: Here the situation starts to be a little bit more complicated. MySQL Router is the one that has the higher latency no matter what. That allows it to go a bit further. and ProxySQL 6.6k.

Games 141

Games Latency Traffic Cache 141

Smashing Magazine

APRIL 17, 2019

All these resource hints use the rel attribute of the <link> element that you’ll be familiar with finding in the <head> of your HTML documents. One step on from DNS prefetching is preconnecting to a server. A brief “conversation” between the browser and server to create the connection. Preconnecting.

Performance 109

Performance Servers Games Cache 109

The Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. Once all documents have been indexed with no errors, we swap the alias from the currently active index to the newly built index. The graph has two requirements. Search Indexer.

Database 115

Database Cache Servers Performance 115

Dynatrace

AUGUST 5, 2019

Remember: This is a critical aspect as you do not want to migrate a service and suddenly introduce high latency or costs to a system that you forgot about having a dependency with! The following shows one of the slides I use to answer the question: What happens if I move this group of servers? Where to invest in data compression?

Cloud 38

Cloud Traffic Database Network 38

Brendan Gregg

JULY 2, 2021

biolatency Disk I/O latency histogram heat map. runqlat CPU scheduler latency heat map. There is already documentation as man pages and example files in the bcc and bpftrace repositories that you can link to, to help your customers understand the tool output. execsnoop New processes (via exec(2)) table.

Latency 144

Latency Cache Energy Systems 144

Smashing Magazine

AUGUST 20, 2021

Yet, for all these technological developments, it’s interesting that many of us are still serving sites in the same way Tim did with the very first website — a web server serving static website files. What’s interesting is there was little mention of static sites in MoveableType’s documentation at all. More after jump!

Ecommerce 142

Ecommerce Website Government Internet 142

Percona

JULY 17, 2023

1 among non-relational/document-based systems ( DB-Engines, July 2023 ). Instead of the table-based structure of relational databases, MongoDB stores data in documents and collections, a design for handling large amounts of unstructured data and for real-time web applications. It ranks No.

Open Source 98

Open Source Database Scalability Software 98

Smashing Magazine

SEPTEMBER 28, 2022

The resource loading waterfall is a cascade of files downloaded from the network server to the client to load your website from start to finish. Client Side Rendering, Server Side Rendering And Jamstack. To run it, you have to make another API call to the server and retrieve any data you want to load. Jump to online workshops ?.

Cache 141

Cache Performance Servers Architecture 141

The Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. Once all documents have been indexed with no errors, we swap the alias from the currently active index to the newly built index. The graph has two requirements. Search Indexer.

Database 100

Database Cache Servers Performance 100

Smashing Magazine

MARCH 25, 2021

With clearly documented performance goals, various teams can have meaningful conversations about the optimal delivery of content. CDNs can alleviate last-mile latency, shorten a video’s start time, and potentially reduce buffering issues. Becoming familiar with those components will enable you to set performance goals.

Media 122

Media Performance Mobile Latency 122

The Netflix TechBlog

DECEMBER 17, 2019

Passive instances across regions are also possible, though it is recommended to operate in the same region as the database host in order to keep the change capture latencies low. We are planning to open source DBLog in 2020 and include additional documentation. References [1] Das, Shirshanka, et al. “ All aboard the Databus!:

Database 221

Database Traffic Transportation Open Source 221

The Netflix TechBlog

DECEMBER 17, 2019

Passive instances across regions are also possible, though it is recommended to operate in the same region as the database host in order to keep the change capture latencies low. We are planning to open source DBLog in 2020 and include additional documentation. References [1] Das, Shirshanka, et al. “ All aboard the Databus!:

Database 206

Database Traffic Transportation Open Source 206

Alex Russell

FEBRUARY 3, 2023

They understood that most websites lack tight latency budgeting, dedicated performance teams, hawkish management reviews, ship gates to prevent regressions, and end-to-end measurements of critical user journeys. "Server-Side Rendering", a.k.a. "SSR" " [ an intro to "isomorphic javascript", a.k.a. "Server-Side

Social Media 130

Social Media Website Technology Technology 130

SQL Performance

FEBRUARY 22, 2021

I would like to share a couple of recent examples that help illustrate how using deprecated SQL Server features continues to bite us. The system table sys.sysprocesses was replaced way back in SQL Server 2005 by a set of dynamic management views (DMVs), most notably sys.dm_exec_requests , sys.dm_exec_sessions , and sys.dm_exec_connections.

Latency 57

Latency Servers Monitoring Systems 57

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Engagement: Poor performance has a well-documented relationship to reduced engagement.

Performance 99

Performance Latency Metrics Engineering 99

Smashing Magazine

AUGUST 3, 2023

Time To First Byte (TTFB) This is the time it takes for the first piece of information from the server to reach the user’s browser. You need to beware that slow server response times can significantly increase TTFB, often due to server overload, network issues, or un-optimized logic on the server side.

Performance 78

Performance Cache Traffic Metrics 78