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

Scalegrid

JANUARY 12, 2024

While managing cloud workloads offers numerous benefits, it also presents several challenges such as security risks, compliance issues, and resource optimization, which can be addressed effectively with tools like ScaleGrid, offering features like encryption, disaster recovery, and real-time resource optimization for diverse databases.

Cloud 130

Cloud Virtualization Storage Efficiency 130

Percona

NOVEMBER 3, 2023

xlarge 4vCPU 8GB-RAM Storage: EBS volume (root) 80GB gp2 (IOPS 240/3000) As well, high availability will be integrated, guaranteeing cluster viability in the case that one worker node goes down. And now, execute the benchmark: -- execute the following on the coordinator node pgbench -c 20 -j 3 -T 60 -P 3 pgbench The results are not pretty.

Database 104

Database Benchmarking Latency C++ 104

CSS Wizardry

MARCH 3, 2019

This means that, if the Cache-Control: max-age=60 header is still present, the cached file’s 60 seconds starts again. If, however, there wasn’t a new file on the server, we’ll bring back a 304 header, no new file, but an entire roundtrip of latency. We can completely cut out the overhead of a roundtrip of latency.

Cache 264

Cache Latency Strategy Servers 264

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

Dynatrace

DECEMBER 22, 2019

AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. Amazon Simple Storage Service (S3). Metrics for each service instance are presented in detailed charts—see the example for ECS below. Dynatrace news. Amazon Simple Queue Service (SQS).

AWS 135

AWS Metrics IoT Storage 135

Dynatrace

DECEMBER 22, 2021

Metrics are measures of critical system values, such as CPU utilization or average write latency to persistent storage. A platform approach, on the other hand, presents a more effective option for understanding observability as a whole. Observability is made up of three key pillars: metrics, logs, and traces.

Artificial Intelligence 171

Artificial Intelligence Metrics Architecture DevOps 171

Dynatrace

DECEMBER 22, 2019

AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. Amazon Simple Storage Service (S3). Metrics for each service instance are presented in detailed charts—see the example for ECS below. Dynatrace news. Amazon Simple Queue Service (SQS).

AWS 132

AWS Metrics IoT Storage 132

All Things Distributed

OCTOBER 16, 2019

Because these IoT devices are powered by microprocessors or microcontrollers that have limited processing power and memory, they often rely heavily on AWS and the cloud for processing, analytics, storage, and machine learning. Sometimes an internet connection is weak or not available at all, as is often the case in remote locations.

IoT 126

IoT Healthcare Internet Internet 126

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. DigitalOcean Droplets. The most basic Droplet is their Standard instance which uses shared CPU starting at just $5/month.

Azure 187

Azure AWS Latency Database 187

The Morning Paper

NOVEMBER 8, 2020

USENIX is a nonprofit organisation committed to making content and research freely available – both conference proceedings and the recorded presentations of their events. replacing Paxos with Raft), or they could be shims over external storage systems. For Facebook’s Delos, reconfiguration latencies of 10s of ms are ok.

Virtualization 126

Virtualization Latency Storage Systems 126

The Netflix TechBlog

DECEMBER 21, 2020

At this scale, we can gain a significant amount of performance and cost benefits by optimizing the storage layout (records, objects, partitions) as the data lands into our warehouse. We built AutoOptimize to efficiently and transparently optimize the data and metadata storage layout while maximizing their cost and performance benefits.

Storage 203

Storage Latency Efficiency Data Engineering 203

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

Percona

DECEMBER 26, 2023

The collected data is aggregated and presented in a single view. Dashboard example 2: Monitoring in real time These two panels show read/write IO performance to the persistent storage while benchmarking a live run. pg_stat_monitor About pg_stat_monitor is a Query Performance Monitoring tool for PostgreSQL.

Benchmarking 121

Benchmarking Metrics C++ Database 121

The Netflix TechBlog

NOVEMBER 22, 2019

4:45pm-5:45pm NFX 209 File system as a service at Netflix Kishore Kasi , Senior Software Engineer Abstract : As Netflix grows in original content creation, its need for storage is also increasing at a rapid pace. In this session, we present our human-centric design principles that enable the autonomy our engineers enjoy.

AWS 100

AWS Entertainment Open Source Benchmarking 100

The Netflix TechBlog

NOVEMBER 22, 2019

4:45pm-5:45pm NFX 209 File system as a service at Netflix Kishore Kasi , Senior Software Engineer Abstract : As Netflix grows in original content creation, its need for storage is also increasing at a rapid pace. In this session, we present our human-centric design principles that enable the autonomy our engineers enjoy.

AWS 100

AWS Entertainment Open Source Benchmarking 100

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Dotcom-Montior

MAY 12, 2020

Websites are now more than just the storage and retrieval of information to present content to users. Network latency. Network Latency. With the evolution of cloud technologies, such as Single Page Applications (SPAs), Web APIs, and Model View Controller (MVC), network latency has become a crucial factor to be monitored.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

The Morning Paper

MARCH 17, 2020

Based on these findings, the authors present four guidelines to get the best performance out of this memory today. 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. Optane DIMMs are here!

Scalability 59

Scalability Latency Cache Media 59

The Morning Paper

JUNE 13, 2019

HotOS’19 is presenting me with something of a problem as there are so many interesting looking papers in the proceedings this year it’s going to be hard to cover them all! The following figure highlights how just one of these variables, batch size, impacts throughput and latency on ResNet50. HotOS’19. Usability expectations.

Hardware 58

Hardware Latency Serverless Energy 58

Percona

MAY 15, 2023

In short, any data that is written must be consistent with the data present. This operation is quite expensive but our database can run it in a few milliseconds or less, thanks to several optimizations that allow the node to execute most of them in memory with no or little access to mass storage. UUID(), ?, ?, NOW(), ?, ?, ?,?)

Traffic 123

Traffic Scalability Database Servers 123

Percona

APRIL 17, 2023

The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all. However, it can lead to the storage of redundant data and make it more difficult to maintain data consistency.

Best Practices 52

Best Practices Design Tuning Database 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. Therefore any programming abstraction must be low latency and the kernel needs to be kept off the path of persistent data access as much as possible.

Hardware 56

Hardware Programming Media Storage 56

Adrian Cockcroft

APRIL 5, 2023

This proposal seeks to define a standard for real-time carbon and energy data as time-series data that would be accessed alongside and synchronized with the existing throughput, utilization and latency metrics that are provided for the components and applications in computing environments.

Energy 52

Energy Metrics Cloud Operating System 52

Testsigma

FEBRUARY 12, 2021

Presently we know it is far from easy to forecast the future – all of us have discovered this in 2020 through major ups and downs. Present Artificial Intelligence investments in North America alone are estimated to hit USD 6-7 billion. The world’s Artificial Intelligence market is anticipated to increase from $28.42

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

O'Reilly Software

APRIL 30, 2018

Modern hybrid applications typically utilize public cloud components, including content delivery networks and cloud storage. Each lookup incurs a small, incremental amount of latency. All of these components need to communicate seamlessly despite any connectivity issues—meaning resiliency is critical.

Cloud 68

Cloud Traffic Internet Internet 68

Smashing Magazine

NOVEMBER 9, 2021

However, then the style will not be present when referencing the image directly (such as the image shared in social media via the <meta property="og:image" content="{image-url}"> tag), making the image devoid of personality. Applying style to the images can be achieved with CSS.

Website 103

Website Social Media Media Design 103

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. This 2GiB RAM, Android 9 stalwart features the all-too classic lines of a Quad-core A53 (1.4GHz, small mercies) CPU, tastefully presented in a charming 5.5" The Moto G4 , for example.

Performance 124

Performance Network Cache Metrics 124

The Morning Paper

MAY 28, 2019

The resulting system can integrate seamlessly into a scikit-learn based development process, and dramatically reduces the total energy usage required for classification with very low latency. One such possible representation is pure analog signalling. Introducing race logic. Race logic encodes values by delaying signals.

Energy 52

Energy Hardware Efficiency Architecture 52

The Netflix TechBlog

JUNE 13, 2023

Our previous blog post presented replay traffic testing — a crucial instrument in our toolkit that allows us to implement these transformations with precision and reliability. One can perform this comparison live on the request path or offline based on the latency requirements of the particular use case.

Traffic 279

Traffic Metrics Systems Strategy 279

The Netflix TechBlog

NOVEMBER 22, 2019

4:45pm-5:45pm NFX 209 File system as a service at Netflix Kishore Kasi , Senior Software Engineer Abstract : As Netflix grows in original content creation, its need for storage is also increasing at a rapid pace. In this session, we present our human-centric design principles that enable the autonomy our engineers enjoy.

AWS 37

AWS Entertainment Open Source Benchmarking 37

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. Telltale provides Edgar with latency benchmarks that indicate if the individual trace’s latency is abnormal for this given service. What is Edgar?

Latency 296

Latency Transportation Engineering Traffic 296

HammerDB

DECEMBER 5, 2020

For TPC-C this meant enough available spindles to reduce I/O latency and for TPC-H enough bandwidth for data throughput. 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

Dotcom-Montior

MARCH 6, 2022

Some of the phases are presented below: Receiving. Cached Mode (Repeat Visit): The user access the website for the second time, emulating a second visit from the user’s perspective, which includes all the files now cached in a local storage. The time it takes to download files. This is the first phase of the timeline.

Performance 52

Performance Cache Website Speed 52

All Things Distributed

AUGUST 16, 2011

There are different considerations when deciding where to allocate resources with latency and cost being the two obvious ones, but compliance sometimes plays an important role as well. Driving Storage Costs Down for AWS Customers. Expanding the Cloud - The AWS Storage Gateway. At werner.ly Syndication. Subscribe to this weblogs.

AWS 111

AWS Government Big Data Cloud 111

O'Reilly

NOVEMBER 12, 2019

latency, startup, mocking, etc.) Serverless presents a conceptually simpler path to deploying software for those in development roles with no need to manage servers and storage. “Integration/testing is harder” ranked as the third biggest worry, noted by 30% of respondents. changing the integration landscape—at least for now.

Serverless 88

Serverless Architecture FinTech Infrastructure 88