ACM Sigarch

OCTOBER 4, 2018

This is the first post in a series of posts on different approaches to systems security especially as they apply to hardware and architectural security. The class of techniques described in this blog post, which we broadly refer to as applied hardware and architecture cryptography, apply proven cryptographic techniques to strengthen systems.

Systems 47

Systems Hardware Storage Healthcare 47

The Morning Paper

MAY 28, 2019

The goal is to produce a low-energy hardware classifier for embedded applications doing local processing of sensor data. Race logic has four primary operations that are easy to implement in hardware: MAX, MIN, ADD-CONSTANT, and INHIBIT. One efficient way of doing that in analog hardware is the use of current-starved inverters.

Energy 52

Energy Hardware Efficiency Architecture 52

HammerDB

JUNE 27, 2022

It enables the user to measure database performance and make comparative judgements about database hardware and software. These factors meant that often when looking for database performance information, the results for a particular combination of software and hardware were not available. What is HammerDB? Why HammerDB was developed.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

HammerDB

OCTOBER 23, 2023

Also, note in passing that we include a COMMIT statement in this procedure because one is included in the example code in TPC-C specification. Stored Procedures and Client SQL comparison To test the stored procedures and client implementations, we ran both workloads against a system equipped with Intel Xeon 8280L.

Benchmarking 62

Benchmarking Database Network C++ 62

Brendan Gregg

SEPTEMBER 25, 2021

The broken Java stacks turned out to be beneficial: They helped group together the os::javaTimeMillis() calls which otherwise might have have been scattered on top of different Java code paths, appearing as thin stacks everywhere. Without NMI, some kernel code paths (interrupts disabled) can't be profiled. But I'm not completely sure.

Speed 126

Speed Java AWS Virtualization 126

The Morning Paper

JANUARY 30, 2020

Wasm functions contain native codes compiled at runtime, so they should not be directly migrated as normal JavaScript objects. These use their regression models to estimate processing time (which will depend on the hardware available, current load, etc.). The MWW System prototype is implemented in Chrome for the browser, and Node.js

Mobile 104

Mobile Cloud Latency Games 104

The Morning Paper

DECEMBER 8, 2019

Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data. The Twizzler KVS (key-value store) is just 250 lines of C code, and uses one persistent object for the index structure, and a second one for the data.

Hardware 56

Hardware Programming Media Storage 56

Smashing Magazine

OCTOBER 27, 2021

Eye-tracking provides information on how people navigate on a page and how attracted they are to visual elements on the screen, like in this study conducted by Nielsen Norman Group which shows the pattern that people use to scan comparison tables. This heatmap is a visual representation of the F-shaped pattern. More after jump!

Mobile 111

Mobile Website Hardware Social Media 111

Percona

DECEMBER 27, 2022

Here is a comparison chart of the different levels of encryption available in various relational database management systems: Encryption Level. This key is usually stored in a secure location, such as a hardware security module (HSM). HMAC (Keyed-Hash Message Authentication Code). Encryption available in databases. PostgreSQL.

Database 93

Database Storage Servers Strategy 93

Alex Russell

APRIL 29, 2021

After 20 years of neck-in-neck competition, often starting from common code lineages, there just isn't that much left to wring out of the system. Enable developers to compress data efficiently without downloading large amounts of code to the browser. is access to hardware devices. Compression Streams. Keyboard Lock API.

Media 145

Media Games Education Engineering 145

John McCalpin

JANUARY 22, 2018

Introduction: In December 2017, my colleague Damon McDougall (now at AMD) asked for help in porting the fused multiply-add example code from a Colfax report ( [link] ) to the Xeon Phi x200 (Knights Landing) processors here at TACC. Instead, we found puzzle after puzzle. Instead, we found puzzle after puzzle.

Latency 40

Latency Hardware Code Testing 40

The Netflix TechBlog

FEBRUARY 13, 2020

Brief overview of image coding formats The JPEG format was introduced in 1992 and is widely popular. This is followed by quantization and entropy coding. With the motion extension, it was accepted as the video coding standard for digital cinema in 2004. Webp is based on intra-frame coding from the VP8 video coding format.

Code 212

Code Metrics Efficiency Open Source 212

Smashing Magazine

NOVEMBER 17, 2021

This code gives our element a red background color: my-element { background-color: #ff0000; }. rgb() and rgba() allow us to “mix” colors in our code to some extent, but the results can be somewhat unpredictable. Using values outside of the sRGB range will only have an effect when hardware and browsers advance sufficiently.

Energy 144

Energy Design Website Hardware 144

Brendan Gregg

SEPTEMBER 25, 2021

The broken Java stacks turned out to be beneficial: They helped group together the os::javaTimeMillis() calls which otherwise might have have been scattered on top of different Java code paths, appearing as thin stacks everywhere. Without NMI, some kernel code paths (interrupts disabled) can't be profiled. us on Centos and 0.68

Speed 52

Speed Java AWS Virtualization 52

Brendan Gregg

AUGUST 8, 2017

Nowadays, the source code to old operating systems can also be found online. Linux is also hard coding the 1, 5, and 15 minute constants. This state is used by code paths that want to avoid interruptions by signals, which includes tasks blocked on disk I/O and some locks. This, too, was a dead end. They aren't idle.

Latency 111

Latency Metrics C++ Systems 111

Smashing Magazine

JANUARY 11, 2021

Have we optimized enough with tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, progressive hydration, clients hints, HTTP/3, service workers and — oh my — edge workers? It’s much easier to reach performance goals when the code base is fresh or is just being refactored.

Performance 145

Performance Cache Media Metrics 145

SQL Performance

AUGUST 27, 2019

On August 7, 2019, AMD finally unveiled their new 7nm EPYC 7002 Series of server processors, formerly code-named "Rome" at the AMD EPYC Horizon Event in San Francisco. It will also use less power than a two-socket Intel server, with a lower hardware cost, and potentially lower licensing costs (for things like VMware). 64 equals 104.95

Servers 52

Servers Benchmarking Virtualization Architecture 52

Testsigma

JANUARY 30, 2021

The applications are designed using the same code base as Desktop like HTML, Javascript, and CSS. Each smartphone comes with various screen sizes and resolutions, operates on different network speeds, and has different hardware capabilities. There are so many different devices readily available in the market today to view a website.

Mobile 52

Mobile Testing Website Internet 52

Brendan Gregg

SEPTEMBER 25, 2021

The broken Java stacks turned out to be beneficial: They helped group together the os::javaTimeMillis() calls which otherwise might have have been scattered on top of different Java code paths, appearing as thin stacks everywhere. Without NMI, some kernel code paths (interrupts disabled) can't be profiled. But I'm not completely sure.

Speed 40

Speed Java AWS Virtualization 40

ScaleOut Software

APRIL 22, 2020

ScaleOut StateServer provides an API called Parallel Method Invocation (and also a variant of.NET’s Parallel.ForEach called Distributed ForEach ) which lets a client application ship code to the cache that processes the results of a parallel query and then returns merged results back to the client. Distributed Caches Can Help Now.

Cache 52

Cache Storage Servers Database 52

ScaleOut Software

APRIL 22, 2020

ScaleOut StateServer provides an API called Parallel Method Invocation (and also a variant of.NET’s Parallel.ForEach called Distributed ForEach ) which lets a client application ship code to the cache that processes the results of a parallel query and then returns merged results back to the client. Distributed Caches Can Help Now.

Cache 52

Cache Storage Servers Database 52

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. Finally it is also important to note that this comparison is focused around OLTP based workloads, HammerDB also supports a TPC-H based workload for analytics with complex ad-hoc queries. Configure MySQL.

Best Practices 40

Best Practices Scalability Performance C++ 40

Smashing Magazine

SEPTEMBER 21, 2021

More precisely, we’ll discuss: Why using the Linux shell can be very powerful when working with plain text (including code); Why using the dreaded Arch Linux; The advantage of a tiling window manager; How to have a great terminal experience with URxvt, tmux, and tmuxp; Why Vim can become your best friend. But first, a bit of theory.

Development 98

Development Energy Programming Efficiency 98

Smashing Magazine

FEBRUARY 5, 2019

Although modern iOS hardware is powerful enough to handle many intensive and complex tasks, the device could still feel unresponsive if you are not careful about how your app performs. For example, the Safari app’s launch screen is similar to its first view : A comparison of launch screen and first view of Safari app ( Large preview ).

Performance 75

Performance Energy Operating System Code 75

Smashing Magazine

JANUARY 6, 2020

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? It’s much easier to reach performance goals when the code base is fresh or is just being refactored.

Performance 145

Performance Cache Network Metrics 145

Brendan Gregg

SEPTEMBER 5, 2017

It uses a Solaris Porting Layer (SPL) to provide a Solaris-kernel interface on Linux, so that unmodified ZFS code can execute. There's also a ZFS send/recv code path that should try to use the TASK_INTERRUPTIBLE flag (as suggested by a coworker), to avoid a kernel hang (can't kill -9 the process). LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

JANUARY 7, 2019

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are?

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

APRIL 29, 2021

The above code with an alt specified looks as follows: <img src="donut.jpg" alt="A delicious pink donut."> Device Pixel Ratio (DPR) represents how a CSS pixel is translated to physical pixels on a hardware screen. This typically corresponds to the page’s responsive breakpoints. Device Pixel Ratio (DPR) / Pixel Density Capping.

Media 145

Media Network Metrics Mobile 145

Alex Russell

JULY 14, 2021

However, producing a complete and competitive WebView-based browser requires additional UI and glue code. Hardware access APIs, notably: Geolocation. There were justifiable reasons to add code like this. WebViews contain core browser features, along with hooks that allow embedders to "light up" many more. Web Bluetooth.

Google 121

Google Mobile Engineering Internet 121

O'Reilly

SEPTEMBER 19, 2023

” Each step has been a twist on “what if we could write code to interact with a tamper-resistant ledger in real-time?” Hadoop’s value—being able to crunch large datasets—often paled in comparison to its costs. Doubly so as hardware improved, eating away at the lower end of Hadoop-worthy work.

Hardware 99

Hardware Storage Big Data Blockchain 99

SQL Server According to Bob

JANUARY 11, 2020

​​ The following ​​ code ​​ example ​​ shows ​​ the setting ​​ of ​​ values ​​ in ​​ illegal ​​ array positions. scid=kb ; en-us;828339 ) on the Microsoft Web site.

Servers 40

Servers Cache Database Media 40

All Things Distributed

MARCH 19, 2018

Amazon SageMaker training supports powerful container management mechanisms that include spinning up large numbers of containers on different hardware with fast networking and access to the underlying hardware, such as GPUs. This can all be done without touching a single line of code.

Scalability 160

Scalability Hardware AWS Tuning 160

Smashing Magazine

AUGUST 22, 2021

Many network interface controllers (NICs) even have built-in hardware-offload features for TCP. This is with the recent Windows updates, which made UDP faster (for a full comparison, UDP throughput on that system was 19.5 We can also expect QUIC-specific hardware to become available. Gbps, compared to 11.85

Performance 105

Performance Network Latency Servers 105

The Agile Manager

JUNE 23, 2007

This might be a data centre where hardware uptime is guaranteed to process transactions, a timesheeting capability that is available on-demand, or development of a custom application to analyse asset backed securities. Traditionally, IT has been a risk assumer. The core opportunity lies with people.

Technology 40

Technology Technology Energy Innovation 40

All Things Distributed

NOVEMBER 30, 2016

Hubspot could take advantage of advanced AI and ML capabilities provided by Amazon Lex, without having to code the algorithms. Each detected face is transformed into an irreversible vector representation, and this feature vector (and not the underlying image itself) is used for comparison and search. Face recognition.

AWS 166

AWS Lambda Artificial Intelligence Mobile 166