Dynatrace

JULY 25, 2022

Dynatrace has added support for the newly introduced Amazon Virtual Private Cloud (VPC) Flow Logs for AWS Transit Gateway. This new service enhances the user visibility of network details with direct delivery of Flow Logs for Transit Gateway to your desired endpoint via Amazon Simple Storage Service (S3) bucket or Amazon CloudWatch Logs.

AWS 214

AWS Transportation Network Traffic 214

Dynatrace

AUGUST 5, 2022

A message queue is a form of middleware used in software development to enable communications between services, programs, and dissimilar components, such as operating systems and communication protocols. Consumers store messages in a queue — usually in a buffer or on a storage medium — until they can process and delete them.

Monitoring 196

Monitoring Serverless Programming Speed 196

Dynatrace

AUGUST 5, 2022

A message queue is a form of middleware used in software development to enable communications between services, programs, and dissimilar components, such as operating systems and communication protocols. Consumers store messages in a queue — usually in a buffer or on a storage medium — until they can process and delete them.

Monitoring 195

Monitoring Serverless Programming Speed 195

Dynatrace

DECEMBER 16, 2021

Log4Shell is a software vulnerability in Apache Log4j 2 , a popular Java library for logging error messages in applications. It’s present in major platforms from Amazon Web Services to VMware, and services large and small. It logs messages from software, and searches for errors afterwards. What is Log4Shell?

Internet 259

Internet Internet Games Java 259

Dynatrace

SEPTEMBER 7, 2022

VPC Flow Logs is an Amazon service that enables IT pros to capture information about the IP traffic that traverses network interfaces in a virtual private cloud, or VPC. With Amazon Web Services, the main sources from which to ingest logs—Simple Storage Service, or S3, and CloudWatch —come with an additional cost.

Traffic 212

Traffic AWS Network Cloud 212

Dynatrace

MAY 26, 2021

From May 17 to May 18, 2021, the Open-Source Engineering team at Dynatrace attended the virtual observability conference, o11yfest. Trace-based sampling can help you save storage costs. This can help you save money in storage costs in the long run. SRE is becoming a key component of observability.

AWS 208

AWS Strategy Storage Metrics 208

Brendan Gregg

JULY 4, 2021

AWS Graviton2); for memory with the arrival of DDR5 and High Bandwidth Memory (HBM) on-processor; for storage including new uses for 3D Xpoint as a 3D NAND accelerator; for networking with the rise of QUIC and eXpress Data Path (XDP); and so on. I also wrote about these topics in detail for my recent [Systems Performance 2nd Edition] book.

Performance 140

Performance Latency Hardware Storage 140

Percona

JULY 7, 2023

Unfortunately, using certain open source database software as part of an HA architecture can present significant challenges. Despite all its upside, PostgreSQL software presents such challenges. HA in PostgreSQL databases delivers virtually continuous availability, fault tolerance, and disaster recovery.

Availability 85

Availability Open Source Architecture Database 85

Dynatrace

MAY 26, 2021

From May 17 to May 18, 2021, the Open-Source Engineering team at Dynatrace attended the virtual observability conference, o11yfest. Trace-based sampling can help you save storage costs. This can help you save money in storage costs in the long run. SRE is becoming a key component of observability.

AWS 147

AWS Strategy Storage Metrics 147

Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] Apr 2018 - [Cutress 19] Dr. DDR6: Here's What to Expect in RAM Modules,” [link] Nov 2020 - [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] Jul 2020 - [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 110

Performance Latency Cache Virtualization 110

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Without enough infrastructure (physical or virtualized servers, networking, etc.),

Availability 110

Availability Database Open Source Hardware 110

Testsigma

JULY 3, 2021

From the maintenance and monitoring of the machines and software to upgrading and installations — you’ll need all hands on deck. More control: While performing on-premise testing, organizations have more control over configurations, setup, hardware, and software. As the name suggests, it happens on-premise.

Cloud 57

Cloud Testing Storage DevOps 57

Percona

MAY 15, 2023

In both cases, when using virtually-synchronous replication, the process will require certification from each node and local (by node) write; as such, the number of writes is NOT distributed across multiple nodes but duplicated. In short, any data that is written must be consistent with the data present. Why ProxySQL?

Traffic 125

Traffic Scalability Database Servers 125

Brendan Gregg

JULY 4, 2021

AWS Graviton2); for memory with the arrival of DDR5 and High Bandwidth Memory (HBM) on-processor; for storage including new uses for 3D Xpoint as a 3D NAND accelerator; for networking with the rise of QUIC and eXpress Data Path (XDP); and so on. I also wrote about these topics in detail for my recent [Systems Performance 2nd Edition] book.

Performance 52

Performance Latency Hardware Storage 52

The Morning Paper

DECEMBER 8, 2019

On the last morning of the conference Daniel Bittman presented some of the work being done in the context of the Twizzler OS project to explore new programming models for NVM. Traditional pointers address a memory location (often virtual of course). A big thank you to everyone that I met there for making me feel so welcome.

Hardware 56

Hardware Programming Media Storage 56

Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] , Apr 2018 [Cutress 19] Dr. DDR6: Here's What to Expect in RAM Modules,” [link] , Nov 2020 [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] , Jul 2020 [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 52

Performance Latency Cache Virtualization 52

Percona

APRIL 17, 2023

Operating System (OS) settings Swappiness Swappiness is a Linux kernel setting that influences the behavior of the Virtual Memory manager when it needs to allocate a swap, ranging from 0-100. For example: Read/Write tickets WiredTiger uses tickets to control the number of read / write operations simultaneously processed by the storage engine.

Best Practices 52

Best Practices Design Tuning Database 52

Adrian Cockcroft

APRIL 5, 2023

Energy data at the entire machine or raw cloud instance level needs to be apportioned to virtual machines or cloud instances which run an operating system, and to pods, containers and processes running applications and background activities that consume CPU, memory and I/O resources.

Energy 52

Energy Metrics Cloud Operating System 52

SQL Server According to Bob

DECEMBER 18, 2018

Device level flushing may have an impact on your I/O caching, read ahead or other behaviors of the storage system. Neal, Matt, and others from Windows Storage, Windows Azure Storage, Windows Hyper-V, … validating Windows behaviors. · Any storage device that can survive a power outage. Starting with the Linux 4.18

Servers 90

Servers Media Cache Storage 90

HammerDB

DECEMBER 5, 2020

A full understanding of why this is important requires some knowledge of the evolution of database hardware and software. For example, 1000 user terminals would present transactions with human think times and delays, and the transaction monitor will concentrate them down to a steady stream of, say, 50 concurrent processes.

C++ 40

C++ Benchmarking Virtualization Open Source 40

HammerDB

OCTOBER 12, 2018

As is also the case this limitation is at the database level (especially the storage engine) rather than the hardware level. InnoDB is the storage engine that will deliver the best OLTP throughput and should be chosen for this test. . For this reason sysbench presents a vastly more simplified workload than HammerDB. .

Best Practices 40

Best Practices Scalability Performance C++ 40

HammerDB

JANUARY 5, 2019

Some opinions claim that “Benchmarks are meaningless”, “benchmarks are irrelevant” or “benchmarks are nothing like your real applications” However for others “Benchmarks matter,” as they “account for the processing architecture and speed, memory, storage subsystems and the database engine.”

Benchmarking 40

Benchmarking Database Social Media Scalability 40

Alex Russell

APRIL 29, 2021

Chrome has missed several APIs for 3+ years: Storage Access API. Now in development in WebKit after years of radio silence, WebXR APIs provide Augmented Reality and Virtual Reality input and scene information to web applications. An extension to Service Workers that enables browsers to present users with cached content when offline.

Media 145

Media Games Education Engineering 145

IO River

NOVEMBER 2, 2023

Infrastructure code, like any software code, can be reviewed, discussed, and modified collaboratively.‍A Consider an example where a company is running multiple virtual machines (VMs) on a cloud provider. ‍Terraform, on the other hand, presents a stark contrast. One of the primary reasons is the shared workflow.

Open Source 52

Open Source DevOps AWS Azure 52

SQL Server According to Bob

MARCH 27, 2017

When SQL Server is started on Linux the monitoring process (/opt/mssql/bin/sqlservr) is present. Excluding is helpful but you have to mark the memory pages before you know about a problem and the madvise setting can lead to splitting of the virtual address range(s) and address range exhaustion (proc/$pid/maps.) Module list.

Servers 40

Servers Virtualization Storage Design 40

IO River

NOVEMBER 2, 2023

Infrastructure code, like any software code, can be reviewed, discussed, and modified collaboratively.‍A Terraform's declarative nature makes this adaptation straightforward.‍Consider an example where a company is running multiple virtual machines (VMs) on a cloud provider. Terraform, on the other hand, presents a stark contrast.

Open Source 40

Open Source DevOps AWS Azure 40

Smashing Magazine

SEPTEMBER 26, 2019

In software development, the word “migration,” when we need to upgrade or change technology in a project, usually falls under the latter case, unfortunately. Technically, we have to split our existing application into microservices virtually. Good,” “Fast,” “Cheap”. So we should dive more in-depth here. Allow Host-to-Alien Access.

Architecture 73

Architecture Virtualization Servers Technology 73

Brendan Gregg

SEPTEMBER 5, 2017

They use third-party software like Docker or Kubernetes to simplify their administration. There are workarounds: I can use the perf_events cgroup ID, provided the container software is configuring it (they do). There have been security vulnerabilities, just like there are with any software. People rarely create them manually.

Virtualization 76

Virtualization AWS Engineering Hardware 76

SQL Server According to Bob

JANUARY 11, 2020

The suspension takes place when ​​ no user requests are ​​ present ​​ and wakes ​​ when a ​​ new ​​ request arrives. Streams ​​ NTFS volumes ​​ enable ​​ data files to have one or more secondary storage streams.

Servers 40

Servers Cache Database Media 40

SQL Server According to Bob

JANUARY 11, 2020

​​ Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information presented after the date of publication. Stable Media Stable media is often confused with physical storage.

Servers 40

Servers Cache Media Hardware 40

SQL Server According to Bob

DECEMBER 31, 2018

Using SQL Server Management Studio (SSMS) and storing the events in a table requires reading the events, streaming to table storage followed by an order by event sequence query. protected virtual void Dispose(bool bDisposing) { if (true == bDisposing) { m_MatchingTree.Dispose(); m_MatchingTree = null; if (null != Start(); }.

Efficiency 40

Efficiency Code Servers Cache 40

All Things Distributed

JANUARY 18, 2012

Each service encapsulates its own data and presents a hardened API for others to use. In response, we began to develop a collection of storage and database technologies to address the demanding scalability and reliability requirements of the Amazon.com ecommerce platform. The growth of Amazonâ??s History of NoSQL at Amazon - SimpleDB.

Scalability 167

Scalability Database Ecommerce Latency 167

Smashing Magazine

JANUARY 11, 2021

To optimize storage interally, you could use Dropbox’s new Lepton format for losslessly compressing JPEGs by an average of 22%. Faster devices on faster networks have virtually no stalls. It was never supported consistently and had some caching issues (see slide 114 onwards of Hooman Beheshti’s presentation ). Large preview ).

Performance 145

Performance Cache Media Metrics 145