Dynatrace

SEPTEMBER 25, 2019

Therefore, it requires multidimensional and multidisciplinary monitoring: Infrastructure health —automatically monitor the compute, storage, and network resources available to the Citrix system to ensure a stable platform. Citrix platform performance—optimize your Citrix landscape with insights into user load and screen latency per server.

Latency 119

Latency Performance Virtualization Infrastructure 119

Percona

MARCH 29, 2023

In this blog, we will discuss both data and network-level compression offered in MongoDB. We will discuss snappy and zstd for data block and zstd compression in a network. By default, MongoDB provides a snappy block compression method for storage and network communication. I am using PSMDB 6.0.4

Storage 115

Storage Network Open Source Latency 115

Alex Russell

FEBRUARY 28, 2022

The chief effect of the architectural difference is to shift the distribution of latency within the loop. Herein lies the source of our collective anxiety about front-end architectures: traversing networks is always fraught, but the costs to deliver client-side logic to cushion users from variable network latency remain stubbornly high.

Performance 113

Performance Latency Architecture Network 113

Scalegrid

MARCH 28, 2024

In this comparison of Redis vs Memcached, we strip away the complexity, focusing on each in-memory data store’s performance, scalability, and unique features. Performance Comparison: Redis vs Memcached Although Redis and Memcached are high-performance in-memory data stores, their performance characteristics are distinct.

Cache 130

Cache Storage Architecture Scalability 130

KeyCDN

FEBRUARY 4, 2021

Using a fast DNS hosting provider ensures there is less latency between the DNS lookup and TTFB. Just like with content delivery networks, DNS hosting providers also have multiple POPs. Their network is made up of over 60 POPs and supports IPv6 everywhere. DNS speed comparison report Who offers the best free DNS?

Cache 134

Cache Website Internet Internet 134

Scalegrid

NOVEMBER 4, 2024

For a more detailed comparison of performance features between different versions, refer to: [link] Benchmarking Methodology Sysbench Overview Sysbench is a versatile, open-source benchmarking tool ideal for testing OLTP (Online Transaction Processing) database workloads. It also enhanced the management of large tables and indexes.

Benchmarking 130

Benchmarking AWS Tuning Metrics 130

The Morning Paper

JANUARY 30, 2020

Edge servers are the middle ground – more compute power than a mobile device, but with latency of just a few ms. The client MWW combines these estimates with an estimate of the input/output transmission time (latency) to find the worker with the minimum overall execution latency. The opencv app has the largest state (4.6

Mobile 104

Mobile Cloud Latency Games 104

The Morning Paper

NOVEMBER 15, 2020

An IDS/IPS monitors network flows and matches incoming packets (or more strictly, Protocol Data Units, PDUs) against a set of rules. This makes the whole system latency sensitive. The baseline for comparison is Snort 3.0 , “the most powerful IPS in the world” according to the Snort website. IDS/IPS requirements.

Servers 128

Servers Hardware Latency Design 128

Enprowess

SEPTEMBER 7, 2021

Quick summary : Node vs React Comparison is not correct because both technologies are entirely different things. Node JS vs. React JS Comparison. with its low latency I/O operations, gives the benefit of ‘No buffering’ to developers. Network: Node.js Now, let us make a comparison between React and Node.js.

Open Source 52

Open Source Virtualization Programming Servers 52

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. so are power levels and network bandwidth. This post describes how the Netflix TVUI team implemented a robust strategy to quickly and easily detect performance anomalies before they are released?—?and

Performance 210

Performance Performance Testing Metrics Testing 210

The Netflix TechBlog

DECEMBER 2, 2019

Suppose the encoding team develops more efficient encodes that improve video quality for members with the lowest quality (those streaming on low bandwidth networks). Your instinct might tell you this is caused by an unusually slow network, but you still become frustrated that the video quality is not perfect.

Metrics 147

Metrics Strategy Testing Efficiency 147

Brendan Gregg

AUGUST 8, 2017

90491 N|rnberg (Germany) Consulting+Networking+Programming+etc'ing 42. Network I/O? Perhaps one day we'll add additional load averages to Linux, and let the user choose what they want to use: a separate "CPU load averages", "disk load averages", "network load averages", etc. Latency was acceptable and no one complained.

Latency 111

Latency Metrics C++ Systems 111

The Netflix TechBlog

DECEMBER 2, 2019

Suppose the encoding team develops more efficient encodes that improve video quality for members with the lowest quality (those streaming on low bandwidth networks). Your instinct might tell you this is caused by an unusually slow network, but you still become frustrated that the video quality is not perfect.

Metrics 143

Metrics Strategy Testing Efficiency 143

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”. HTTP/2 versus HTTP/3 protocol stack comparison ( Large preview ).

Transportation 145

Transportation Internet Internet Network 145

The Netflix TechBlog

DECEMBER 2, 2019

Suppose the encoding team develops more efficient encodes that improve video quality for members with the lowest quality (those streaming on low bandwidth networks). Your instinct might tell you this is caused by an unusually slow network, but you still become frustrated that the video quality is not perfect.

Metrics 130

Metrics Strategy Testing Efficiency 130

Brendan Gregg

OCTOBER 8, 2018

eBPF was created by Alexei Starovoitov while at PLUMgrid (he's now at Facebook) as a generic in-kernel virtual machine, with software defined networks as the primary use case. See the [reference guide] for more details. ## Script Comparison I could pick scripts that minimize or maximize the differences, but either would be misleading.

C++ 105

C++ Virtualization Programming Latency 105

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+). Consistent performance matters just as much as low average latency.

Performance 99

Performance Latency Metrics Engineering 99

Highly Scalable

MAY 1, 2012

This approach often leads to heavyweight high-latency analytical processes and poor applicability to realtime use cases. This process is shown in the figure below: It is clear that if sketch is large in comparison with the cardinality of the data set, almost each value will get an independent counter and estimation will precise.

Analytics 191

Analytics Traffic Big Data Efficiency 191

Adrian Cockcroft

SEPTEMBER 23, 2024

There are three generations of GPUs that are relevant to this comparison. The Hopper H100 was announced in 2022 and is the current volume product that people are using, so that is used as the baseline for comparison. The HGX H100 8-GPU system is the baseline for comparison, and its datasheet performance is shownbelow.

Benchmarking 52

Benchmarking Energy Architecture Latency 52

Smashing Magazine

MAY 16, 2022

This header can be set on the response of any network resource, such as XHR, fetch, images, HTML, stylesheets, etc. These subtypes are currently the only subtypes related to network requests and thus exposing the Server-Timing information. Setting Server-Timing. For Images, Stylesheets, JS files, the HTML Doc, etc.

Servers 95

Servers Monitoring Cache Network 95

Smashing Magazine

AUGUST 10, 2023

The other issue is that the data I’m getting back is based on lab simulations where I can add throttling, determine the device that’s used, and the network connection, among other simulated conditions. On that note, it’s worth calling out that there are multiple flavors of network throttling. Real usage data would be better, of course.

Speed 82

Speed Monitoring Testing Network 82

Adrian Cockcroft

JANUARY 20, 2023

In comparison, for Linpack Frontier operates at 68% of peak capacity. Most of the top supercomputers are similar to Frontier, they use AMD or Intel CPUs, with GPU accelerators, and Cray Slingshot or Infiniband networks in a Dragonfly+ configuration.

Architecture 52

Architecture Latency Benchmarking AWS 52

The Morning Paper

AUGUST 29, 2019

For those systems where you provide your own compute instances, the default configuration tested used a 4-node r4.8xlarge cluster with 10Gb/s networking. The experimental results focus on six main areas of comparison: query restrictions system initialisation time query performance cost data compatibility with other systems scalability.

Architecture 76

Architecture Cloud Storage Serverless 76

HammerDB

JULY 6, 2024

This is a brief post to highlight the metrics to use to do the comparison using a separate hardware platform for illustration purposes. Throughput: events/s (eps): 8162.5668 time elapsed: 300.0356s total number of events: 2449061 Latency (ms): min: 0.35 The HammerDB workload is run as shown: Copy Code Copied Use a different Browser.

C++ 52

C++ Hardware Benchmarking Virtualization 52

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Servers and Networks. Network Configuration.

Network 108

Network Servers Cache Traffic 108

KeyCDN

SEPTEMBER 12, 2019

An easy way to compress images is with our image processing service that happens to also be fully integrated into our existing network. Image CDN Using a content delivery network like KeyCDN, or what we also call an image CDN , can be one of the easiest and fastest ways to speed up the delivery of your images.

Social Media 106

Social Media Media Google Website 106

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. So decision trees are essentially networks of threshold functions. Introducing race logic. Race logic encodes values by delaying signals.

Energy 52

Energy Hardware Efficiency Architecture 52

HammerDB

OCTOBER 23, 2023

With a simple example such as this, it would not necessarily be expected for the additional network traffic to be significant between the 2 approaches. However, with more complex application logic this network round trip soon becomes a key focus area for improving performance. On MySQL, we saw a 1.5X performance advantage.

Benchmarking 63

Benchmarking Database Network C++ 63

Alex Russell

APRIL 29, 2021

Real-time network protocols for enabling videoconferencing, desktop sharing, and game streaming applications. Modern, asynchronous network APIs that dramatically improve performance in some situations. For heavily latency-sensitive use-cases like WebXR, this is a critical component in delivering a good experience. Gamepad API.

Media 145

Media Games Education Engineering 145

VoltDB

MARCH 22, 2024

And while the APIs define contracts for what gets passed back and forth, we generally don’t discuss expected latency or availability. When you are looking at the potential to auto-generate 50% of your code, the drawbacks above become instantly ‘okay’ in comparison How does this all relate to Volt?

Java 52

Java Latency Servers Code 52

ScaleOut Software

MAY 15, 2014

Likewise, object access paths must be heavily multi-threaded and avoid lock contention to minimize access latency and maximize throughput. Also, load-balancing after membership changes must be both multi-threaded and pipelined to drive the network at maximum bandwidth. Testing Scale-Up Performance. Please retry later.

Cache 40

Cache Servers Network Design 40

Alex Russell

JULY 14, 2021

Because they lean on the system-provided WebView component, they do not need to pay the expense of a heavier app download to support rendering HTML, running JavaScript, decoding images, or loading network resources. Facebook engineers have noted that the FB IAB is important in fighting bad behaviour on their social network.

Google 134

Google Mobile Engineering Internet 134

The Morning Paper

DECEMBER 8, 2019

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. Traditionally one of the major costs when moving data in and out of memory (be it to persistent media or over the network) is serialisation.

Hardware 56

Hardware Programming Media Storage 56

Testsigma

JANUARY 30, 2021

Each smartphone comes with various screen sizes and resolutions, operates on different network speeds, and has different hardware capabilities. Test how user-friendly an application is: Google search engine gives high priority to websites in comparison to desktop apps. Google ranks applications based on how user friendly it is.

Mobile 52

Mobile Testing Website Internet 52

VoltDB

MARCH 21, 2024

This shows up as long tail latency in performance sensitive applications, and there’s also the cost issues of sending multiple copies of a potentially large object across the wire and doing an expensive byte-by-byte comparison at the other end.

Cache 52

Cache Database Storage Availability 52

Brendan Gregg

SEPTEMBER 5, 2017

Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency. At my employer we sometimes use SR-IOV for direct network interface access, and NVMe for direct disk access. Hit Ctrl-C to end. ^C

Virtualization 75

Virtualization AWS Engineering Hardware 75

Brendan Gregg

OCTOBER 7, 2018

eBPF was created by Alexei Starovoitov while at PLUMgrid (he's now at Facebook) as a generic in-kernel virtual machine, with software defined networks as the primary use case. See the [reference guide] for more details. ## Script Comparison I could pick scripts that minimize or maximize the differences, but either would be misleading.

C++ 40

C++ Virtualization Programming Latency 40