Dynatrace

APRIL 26, 2022

PC, smartphone, server) or virtual (virtual machines, cloud gateways). It is also simple to enhance digital experience monitoring data with customer segmentation, web analytics, and voice of customer data for more fine-tuned visibility into the business impact of individual customers and key segments.

Monitoring 203

Monitoring Social Media IoT Metrics 203

Dynatrace

APRIL 22, 2022

Dynatrace created an OpenTelemetry Collector Exporter to allow customers to collect data from virtually any source and integrate it into their Dynatrace platform. Because the data is in Dynatrace, the Davis AI engine can analyze it automatically. The final component, exporters, write data to backend data stores.

Open Source 173

Open Source Metrics Cloud Tuning 173

Dynatrace

SEPTEMBER 15, 2020

Without automation, Performance engineers and developers can no longer ensure that applications perform as planned, and costs are minimized.”. Akamas is an on-premises product and simply needs one virtual machine to get started. Q3: Is Akamas a SaaS offering or on-premise?

Performance 185

Performance Java Metrics Cloud 185

HammerDB

APRIL 19, 2023

Regardless of whether the computing platform to be evaluated is on-prem, containerized, virtualized, or in the cloud, it is crucial to consider several essential factors. Please refer to this tuning guide to tune the system for HammerDB: Open Source Database Tuning Guide on 3rd Generation Intel® Xeon® Scalable Processors Based Platform.

Performance 54

Performance Benchmarking Cache Storage 54

Adrian Cockcroft

JUNE 21, 2022

So in 1988 I joined the Sun sales force and became a Systems Engineer (nowadays we would say Solutions Architect). I was mostly coding in C, tuning FORTRAN, and when I needed to do a lot of data analysis of benchmark results used the S-PLUS statistics language, that is the predecessor to R.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Alex Podelko

OCTOBER 20, 2016

The answer to this challenge is service virtualization, which allows simulating real services during testing without actual access. Cloud and virtualization triggered appearance dynamic, auto-scaling architectures, which significantly impact getting and analyzing feedback. Traditionally monitoring was on the system level.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

Percona

APRIL 17, 2023

The main objective of this post is to share my experience over the past years tuning MongoDB and centralize the diverse sources that I crossed in this journey in a unique place. systemctl stop tuned $ systemctl disable tuned Dirty ratio The dirty_ratio is the percentage of total system memory that can hold dirty pages.

Best Practices 52

Best Practices Design Tuning Database 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). I happened to be speaking at a technical confering while still debugging this, and mentioned what I was working on to a processor engineer.

Speed 126

Speed Java AWS Virtualization 126

Dynatrace

NOVEMBER 4, 2019

In fact, once containerized, many of these services and the source code itself is virtually invisible in a standalone Kubernetes environment. Our AI engine, Davis, is built from the ground up to automatically pinpoint anomalies and provide precise root-cause analysis for highly distributed containerized environments.

Monitoring 217

Monitoring Cloud Metrics Code 217

Percona

DECEMBER 20, 2018

Linux OS Tuning for MySQL Database Performance. In this post we will review the most important Linux settings to adjust for performance tuning and optimization of a MySQL database server. We’ll note how some of the Linux parameter settings used OS tuning may vary according to different system types: physical, virtual or cloud.

Database 40

Database Tuning Performance AWS 40

HammerDB

MAY 5, 2019

Also it is interesting to note that the impact of this change was not observed in other databases or other MySQL storage engines such as MyRocks the only noticeable impact with HammerDB workloads occurred in MySQL with InnoDB where in the source code ut0ut.cc In the recent MySQL 8.0.16 mysqld] datadir=/home/mysql/mysql-8.0.16/mysql-8.0.16-linux-glibc2.12-x86_64/data

Testing 48

Testing Tuning Latency Storage 48

Brendan Gregg

OCTOBER 8, 2018

more capable, and built from the ground up for the modern era of the eBPF virtual machine. eBPF (extended Berkeley Packet Filter) is in the Linux kernel and is the new hotness in systems engineering. I've spoken to many engineers and companies about finishing a high-level tracer for Linux. eBPF does more.

C++ 110

C++ Virtualization Programming Latency 110

Dynatrace

NOVEMBER 4, 2019

In fact, once containerized, many of these services and the source code itself is virtually invisible in a standalone Kubernetes environment. Our AI engine, Davis, is built from the ground up to automatically pinpoint anomalies and provide precise root-cause analysis for highly distributed containerized environments.

Monitoring 100

Monitoring Cloud Metrics Code 100

Brendan Gregg

SEPTEMBER 5, 2017

This includes many great engineers who I'm sure will excel in whatever they choose to work on next. As a performance engineer who does kernel tracing, I find the lack of an ID I can trace in the kernel to be pretty annoying. I also checked a task list from /sys/fs/cgroup, and saw it's in a docker cgroup.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). I happened to be speaking at a technical confering while still debugging this, and mentioned what I was working on to a processor engineer.

Speed 40

Speed Java AWS Virtualization 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

SQL Server According to Bob

JUNE 9, 2016

For Virtual Machine (VM) installations you may need to consult the VM documentation for support capabilities. For example, setting the virtual machine reserve percentage to 100% provides a hard affinity like capability to a Hyper-V based VM. Bob Dorr – Principal Software Engineer SQL Server. Bare Metal.

Servers 40

Servers Virtualization Tuning Architecture 40

Abhishek Tiwari

JULY 12, 2018

These data pipelines can process data at petabytes scale and to some extent, their success can be attributed to an army of engineers devoted to build and maintain internal data pipelines. Not everyone is operating at Netflix or Spotify scale data engineering function. Generally speaking, data pipelines are leaky by nature.

Latency 63

Latency Analytics Scalability Engineering 63

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. . Error in Virtual User 1: mysqlexec/db server: Table 'mysql.proc' doesn't exist. perf special.

Best Practices 40

Best Practices Scalability Performance C++ 40

Brendan Gregg

OCTOBER 7, 2018

more capable, and built from the ground up for the modern era of the eBPF virtual machine. eBPF (extended Berkeley Packet Filter) is in the Linux kernel and is the new hotness in systems engineering. I've spoken to many engineers and companies about finishing a high-level tracer for Linux. eBPF does more.

C++ 40

C++ Virtualization Programming Latency 40

Brendan Gregg

FEBRUARY 9, 2018

Many thanks to the engineers working hard to develop workarounds to these processor bugs. In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. virtual (bgregg-c5.9xl-i-xxx) 02/09/2018 _x86_64_ (36 CPU) 05:24:51 PM proc/s cswch/s.

Performance 75

Performance Benchmarking Cache Tuning 75

HammerDB

NOVEMBER 5, 2018

The following example takes a snapshot of Oracle metrics showing 3 spikes of activity on a consumer level PC running Oracle within a Virtual Box VM for illustration purposes.The database has been created with the default redo log configuration which is 2 redo logs of 200MB in size each. A good example of how tuning is an iterative process.

Benchmarking 40

Benchmarking Database C++ Virtualization 40

The Agile Manager

JUNE 30, 2015

Virtual data centers, real-time algorithmic pricing, and new media are simply larger versions of that same phenomenon. We have to look at skills and capabilities: we're not going to be much of a software company if we don't employ any software engineers. Production isn't what it used to be.

Software 40

Software Software Innovation Hardware 40

SQL Performance

JUNE 21, 2019

During service startup, if the Database Engine detects more than 8 physical cores per NUMA node or socket, soft-NUMA nodes are created automatically. The engine takes care of placing logical processors from the same physical core into different soft-NUMA nodes. Greater than 8, keep MAXDOP at 8. SQL Server Agent Alerts.

Servers 49

Servers Azure Hardware Database 49

Percona

OCTOBER 3, 2018

Both tables have the same number of rows. We are going to set to NULL one row on each table: update sbtest1 set k=null where limit 1; update sbtest2 set k=null where limit 1; If we execute the comparison query, we get this result: mysql> select "sbtest1",a.* from -> sbtest1 a left join -> sbtest2 b using (k,c,pad) -> where b.id

C++ 43

C++ Virtualization Performance Processing 43

Brendan Gregg

FEBRUARY 8, 2018

Many thanks to the engineers working hard to develop workarounds to these processor bugs. In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. virtual (bgregg-c5.9xl-i-xxx) 02/09/2018 _x86_64_ (36 CPU) 05:24:51 PM proc/s cswch/s.

Performance 40

Performance Benchmarking Cache Tuning 40

The Netflix TechBlog

SEPTEMBER 24, 2021

Virtual Assembly Figure 3 describes how a virtual assembly of the encoded chunks replaces the physical assembly used in our previous architecture. Doing so has the added advantage of being able to design and tune the enhancement to suit the requirements of packager and our other encoding applications.

Cloud 237

Cloud Media Storage Cache 237

The Netflix TechBlog

AUGUST 29, 2023

The abstractions that Eureka provides for this are Virtual IPs (VIPs) for insecure communication, and Secure VIPs (SVIPs) for secure. At the time, the service mesh effort was still being bootstrapped, with only a few engineers working on it. This is the first in a series of posts on our journey to service mesh, so stay tuned.

Traffic 220

Traffic Latency Cloud C++ 220

O'Reilly

NOVEMBER 28, 2023

Even with cloud-based foundation models like GPT-4, which eliminate the need to develop your own model or provide your own infrastructure, fine-tuning a model for any particular use case is still a major undertaking. Infrastructure engineering, a choice selected by 45% of respondents, doesn’t rank as high.

Open Source 108

Open Source Artificial Intelligence Google Infrastructure 108

Smashing Magazine

OCTOBER 22, 2021

The idea is simple : players steer virtual toy cars in a top-down arena that resembles a foosball table. The first prototype was built using the open-source game engine Phaser.js , mostly for the included physics engine and because I already had some experience with it. as a physics engine instead of Phaser.js and Matter.js

Games 96

Games Servers Database Virtualization 96

SQL Server According to Bob

JANUARY 11, 2020

During this process, the Jet engine calculates the page's checksum value to be written, records it in the page header, and then requests that the ​​ file system ​​ writes the 4-KB page of data to the database on disk. ​​ The following table outlines the virtual protection states.

Servers 40

Servers Cache Database Media 40

All Things Distributed

OCTOBER 2, 2017

VPC Endpoints give you the ability to control whether network traffic between your application and DynamoDB traverses the public Internet or stays within your virtual private cloud. Secure – DynamoDB provides fine-grained access control at the table, item, and attribute level, integrated with AWS Identity and Access Management.

Internet 128

Internet Internet AWS Performance 128