Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. There's no Java stack—there should be a tower of green Java methods—instead there's only a single green frame or two. This is how Java flame graphs looked at the time. Maybe Java is calling it more often for some reason.

Speed 126

Speed Java AWS Virtualization 126

Dynatrace

JUNE 10, 2022

Code-based infrastructure enables developers to provision applications based on best practices, limiting the potential for human error and freeing system administrators for more important tasks. This approach to IAC uses object-oriented programming languages, such as Java or C++. Consistency. A lignment.

Best Practices 214

Best Practices Infrastructure Code Speed 214

Sutter's Mill

JANUARY 15, 2013

With the help of friends Robert Seacord and David Svoboda of CERT in particular, I posted a note and link to their CERT post today because people have been misunderstanding the recent Java vulnerabilities, thinking they’re somehow really C or C++ vulnerabilities because Java is implemented in C and C++.

Java 40

Java C++ Virtualization Operating System 40

O'Reilly

AUGUST 9, 2022

It’s easy to imagine a lot of software professionals saying, “Of course you’ll have to know C. Machine language is reserved for a few people who need to work on some specialized areas of operating system internals, or who need to write some kinds of embedded systems code. But I don’t know if that’s true. We’ve been here before.

Programming 105

Programming Java C++ Design 105

Tech News Gather

MARCH 30, 2022

Native app development uses programming languages such as Java and Kotlin for Android, Objective-C, and Swift for iOS. It comprises programming languages, server-side frameworks, operating systems, databases, and APIs. Back-end developers need to be proficient in programming languages like PHP, Ruby, Python, Node.js, and Java.

Technology 96

Technology Technology C++ Java 96

Dynatrace

DECEMBER 8, 2020

In addition, c loud – native environments with containers, microservices, and platforms like Kubernetes are highly dynamic. Dynatrace provides the C-suite with confidence about the security of their cloud-native ecosystem. In future releases, we will focus on: Support for additional language beyond Java.

Cloud 293

Cloud Open Source Internet Internet 293

Dynatrace

JULY 18, 2022

The reference architecture works with C++,NET, Erlang/Elixir, Go, Java, PHP, Python, Ruby, Rust, and Swift — with support for additional languages to come. Grainger, explained, “We have many distributed systems and many product domains, each having their own priorities and issues. ” W.W.

Artificial Intelligence 198

Artificial Intelligence Open Source Analytics Monitoring 198

Tech News Gather

NOVEMBER 22, 2022

In the past, when it came to Android Application Development, Java ruled the world. Java is now widely regarded as an antiquated programming language that does not support modernization. Interoperability with Java. It runs on the Java Virtual Machine. When it comes to privacy, Kotlin is far superior to Java.

Development 52

Development Java Programming Google 52

Percona

OCTOBER 12, 2023

An example of a flame graph can be found below: Each box is a function in the stack, and wider boxes mean more time the system was busy on CPU on these functions. Kubernetes limitations In Linux, by default, performance system events can’t be collected by unprivileged users.

Code 106

Code Tuning C++ Benchmarking 106

Dynatrace

DECEMBER 15, 2020

Upcoming Operating systems support changes. The following operating systems will no longer be supported starting 01 February 2021. The following operating systems will no longer be supported starting 01 May 2021. The following operating systems will no longer be supported starting 01 May 2021. Linux: Ubuntu 19.10.

Operating System 109

Operating System Java Mobile Cache 109

Dynatrace

APRIL 11, 2023

Log4Shell required many organizations to take devices and applications offline to prevent malicious attackers from gaining access to IT systems and sensitive data. As a result, organizations need to be vigilant in identifying and addressing vulnerabilities to protect their systems and data.

Cloud 192

Cloud DevOps Open Source Retail 192

Brendan Gregg

AUGUST 29, 2021

1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 avg-cpu: %user %nice %system %iowait %steal %idle 14.81 avg-cpu: %user %nice %system %iowait %steal %idle 14.86 avg-cpu: %user %nice %system %iowait %steal %idle 14.95 avg-cpu: %user %nice %system %iowait %steal %idle 14.54

Cache 105

Cache C++ AWS Latency 105

Testlodge

AUGUST 9, 2023

Don’t let the word ‘complexity’ concern you because the equation is straightforward: C = E – N + 2P where, C = Cyclomatic Complexity = Number of test cases E = the number of edges on the graph, N = the number of nodes on the graph, P = the number of connected components, which for a single program, or section of code, P will always equal 1.

Testing 75

Testing Software Software C++ 75

Testlodge

MARCH 15, 2023

White box testing is a software testing approach based on an analysis of the internal structure of the component or system. Internal structure may include code, architecture, integrations, and data flows of a system. White box testing also builds confidence in a system. Why is White Box Testing Performed?

Testing 83

Testing Testing Tools Java Programming 83

Adrian Cockcroft

FEBRUARY 9, 2023

The next layer is operating system platforms, what flavor of Linux, what version of Windows etc. The next layer is defined by the languages you want to use, Java, Python, Go, , Javascript, Rust etc, and the ecosystem of library functions you bought from a vendor or downloaded.

Engineering 137

Engineering Serverless Lambda AWS 137

O'Reilly

JANUARY 13, 2020

” Java. It’s mostly good news on the Java front. Java Champion Ben Evans explains, “Once again, rumours of Java’s demise have proved to be little more than wishful thinking on the part of the platform’s detractors.” ” But it hasn’t all been smooth sailing.

Programming 130

Programming Java Google C++ 130

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., Systems built with lots of microservices have different operational characteristics to those built from a small number of monoliths, we’d like to study and better understand those differences.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Brendan Gregg

DECEMBER 22, 2019

Embedded C. # # Tone generation from: [link] # # 29-Apr-2019 Brendan Gregg Created this. This is the culmination of five years of work: the BPF kernel runtime, C support, LLVM and Clang support, the BCC front-end, and finally the bpftrace language. This is not my best code, since I hacked it in a hurry, but here it is: #!/usr/bin/python

C++ 102

C++ Education Java AWS 102

Dynatrace

MARCH 17, 2021

IAST only works with languages that have a virtual runtime environment, such as Java, C#, Python, and Node.js. These include vulnerability scanners and network detection and response systems designed to detect attacks. RASP can identify both vulnerabilities and malicious activities. So, why is all this important?

Open Source 170

Open Source Cloud Games Java 170

Brendan Gregg

SEPTEMBER 5, 2021

They claimed that the ZFS file system was consuming 30% of CPU capacity. These included a breakdown of CPU time into percentages for "usr" (user: applications) and "sys" (system: the kernel). Note that this sample flame graph is dominated by Java, shown by the green frames. ## 4. No ZFS file systems were currently mounted.

Cache 145

Cache Cloud Java Tuning 145

Scalegrid

FEBRUARY 15, 2024

MongoDB® SSL with Self-Signed Certificates in C# Configuring MongoDB Server for SSL/TLS Encryption Once your certificates are ready, the next step is configuring the MongoDB server for SSL/TLS encryption, allowing you to securely connect to MongoDB. Further reading: MongoDB SSL with Self-Signed Certificates in Node.js

Servers 130

Servers Best Practices Government Network 130

Software Architecture

APRIL 8, 2018

What Kotlin has that Java does not. Kotlin’s official documentation is great and there are many introductory articles to Kotlin language on medium, so I won’t be explaining the basics and syntax but wanted to present some unique features that Java doesn’t have and makes Kotlin stand out.

Java 100

Java Lambda Software Architecture Programming 100

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. There's no Java stack—there should be a tower of green Java methods—instead there's only a single green frame or two. This is how Java flame graphs looked at the time. Maybe Java is calling it more often for some reason.

Speed 52

Speed Java AWS Virtualization 52

HammerDB

JUNE 27, 2022

HammerDB has graphical and command line interfaces for the Windows and Linux operating systems. An important concept was to simulate database users called Virtual Users in parallel (rather than concurrently) to accurately simulate a real database workload with multiple users running from separate systems. Why HammerDB was developed.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Percona

JUNE 4, 2023

Before we dive into the differences between MariaDB and MySQL, we will provide a thorough examination of each relational database management system (RDBMS). While originally designed to be a drop-in replacement for MySQL, it evolved into its own distinct database management system and is now maintained and supported by the MariaDB Foundation.

Open Source 52

Open Source Servers Storage Scalability 52

Scalegrid

AUGUST 30, 2019

Redis , short for Remote Dictionary Server, is a BSD-licensed, open-source in-memory key-value data structure store written in C language by Salvatore Sanfillipo and was first released on May 10, 2009. It’s important to note that Redis is a NoSQL database system. Let us take a closer look at the data types that exist in Redis.

Cache 232

Cache Ecommerce Social Media Database 232

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. There's no Java stack—there should be a tower of green Java methods—instead there's only a single green frame or two. This is how Java flame graphs looked at the time. Maybe Java is calling it more often for some reason.

Speed 40

Speed Java AWS Virtualization 40

The Morning Paper

OCTOBER 18, 2020

But what about systems software? On synthetic datasets containing double-precision keys following a standard normal distribution, the authors compared Learned Sort to a variety of cache-optimized and highly tuned C++ implementations of alternative sorting algorithms, presenting the most competitive alternatives in their results.

Cache 137

Cache C++ Java Tuning 137

Dynatrace

OCTOBER 28, 2019

There are many benefits to this approach : reduced operational cost s , reduced complexity, reduced engineering lead time, g reener h osting and c omputing , and many more. We’ve come across applications that use Node, Python, and Java hosted on AWS, Azure, and GCP, all at the same tim e.

Serverless 103

Serverless Lambda Monitoring AWS 103

The Morning Paper

MAY 23, 2019

Looking across a set of eight Java benchmarks, we find that only two of them are array dominated, the rest having between 40% to 75% of the heap footprint allocated to objects, the vast majority of which are small. Consider a B-Tree node from the B-tree Java benchmark: Uncompressed, it’s memory layout looks like (a) below. Evaluation.

Cache 61

Cache Benchmarking Hardware Java 61

Brendan Gregg

DECEMBER 21, 2019

Embedded C. # # Tone generation from: [link] # # 29-Apr-2019 Brendan Gregg Created this. This is the culmination of five years of work: the BPF kernel runtime, C support, LLVM and Clang support, the BCC front-end, and finally the bpftrace language. This is not my best code, since I hacked it in a hurry, but here it is: #!/usr/bin/python

C++ 52

C++ Education Java AWS 52

Brendan Gregg

DECEMBER 21, 2019

Embedded C. # # Tone generation from: [link] # # 29-Apr-2019 Brendan Gregg Created this. This is the culmination of five years of work: the BPF kernel runtime, C support, LLVM and Clang support, the BCC front-end, and finally the bpftrace language. This is not my best code, since I hacked it in a hurry, but here it is: #!/usr/bin/python

C++ 52

C++ Education Java AWS 52

Smashing Magazine

DECEMBER 2, 2021

The Java Advent 2021 is here! The project started in 2012 with the idea of providing technical content during the Christmas Advent period, so keep looking for nice things under the Java Christmas tree! ??. C# Advent Calendar. It’s time for the fifth annual C# advent calendar that will feature two pieces of content every day.

Design 107

Design Development Programming Website 107

Brendan Gregg

JULY 30, 2017

In late 2014 I was modifying the JDK to preserve the frame pointer so that traditional stack walkers and profilers would work (an example of the problem is here , where Java methods lack ancestry). After I fixed the frame pointer, profiling Java looked like this ( SVG ): It worked! I also stripped the extra L from Java symbols.)

Code 40

Code Java C++ Website 40

Particular Software

APRIL 12, 2021

In our latest enhancement release, we’ve added native publish/subscribe to our Azure Storage Queues transport, creating feature parity between Azure Storage Queues and all the other transports provided by NServiceBus, and created a new sample to show you how to integrate with 3rd-party systems sending messages to NServiceBus using native SDKs.

Azure 52

Azure Storage Transportation Java 52

Brendan Gregg

AUGUST 29, 2021

1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 avg-cpu: %user %nice %system %iowait %steal %idle 14.81 avg-cpu: %user %nice %system %iowait %steal %idle 14.86 avg-cpu: %user %nice %system %iowait %steal %idle 14.95 avg-cpu: %user %nice %system %iowait %steal %idle 14.54

Cache 40

Cache C++ AWS Systems 40

ScaleOut Software

SEPTEMBER 20, 2018

When using the digital twin model, each data source in a physical system has a corresponding software object in the stream-processing platform as depicted here: This object encapsulates both state information and code. Here’s a Java example that illustrates how inheritance could be used to create the hot water valve class.

Programming 63

Programming IoT Java Analytics 63