KeyCDN

AUGUST 15, 2019

Web performance is a broad subject, and you’ll find no shortage of performance testing tips and tutorials all over the web. Before you begin tuning your website or application, you must first figure out which metrics matter most to your users and establish some achievable benchmarks. What is Performance Testing?

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

SQL Performance

MARCH 17, 2020

Back in 2014, I wrote an article called Performance Tuning the Whole Query Plan. This machine has four i7 CPUs (hyperthreaded to 8) with a base speed of 2.4GHz. Performance is competitive at around 15ms. This code is provided for interest and is not included in the performance summary table. Test Environment.

Servers 86

Servers Tuning Database Efficiency 86

Percona

MARCH 23, 2023

This blog is in reference to our previous ones for ‘Innodb Performance Optimizations Basics’ 2007 and 2013. Although there have been many blogs about adjusting MySQL variables for better performance since then, I think this topic deserves a blog update since the last update was a decade ago, and MySQL 5.7

Performance 127

Performance Hardware Tuning Storage 127

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 126

Speed Java AWS Virtualization 126

VoltDB

JUNE 19, 2017

While current network speeds may be enough to meet the latency requirements of 4G applications, 5G will necessitate a change, if only because the continental US is ~60ms wide, meaning that a datacenter on one coast communicating with another datacenter on the opposite coast will be too slow for 5G. These have to communicate with each other.

Latency 40

Latency Retail Virtualization Hardware 40

VoltDB

JUNE 19, 2017

While current network speeds may be enough to meet the latency requirements of 4G applications, 5G will necessitate a change, if only because the continental US is ~60ms wide, meaning that a datacenter on one coast communicating with another datacenter on the opposite coast will be too slow for 5G. These have to communicate with each other.

Latency 40

Latency Retail Virtualization Hardware 40

Percona

AUGUST 29, 2018

For optimum performance, a PostgreSQL database depends on the operating system parameters being defined correctly. Poorly configured OS kernel parameters can cause degradation in database server performance. This results in improved performance. You may get good performance by setting lower values. SHMMAX / SHMALL.

Tuning 57

Tuning Database Servers Processing 57

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 40

Speed Java AWS Virtualization 40

Percona

JANUARY 4, 2024

Managing storage and performance efficiently in your MySQL database is crucial, and general tablespaces offer flexibility in achieving this. They provide flexibility in data organization and performance optimization compared to the default setup. What are MySQL general tablespaces? For instance: mysql> show create table authorsG 1.

Storage 91

Storage Engineering Database Hardware 91

Dynatrace

AUGUST 12, 2020

As companies strive to innovate and deliver faster, modern software architecture is evolving at near the speed of light. This gives you deep visibility into your code running in Azure Functions, and, as a result, an understanding of its impact on overall application performance and user experience. So stay tuned! Dynatrace news.

Serverless 236

Serverless Azure Monitoring Lambda 236

Dynatrace

NOVEMBER 15, 2021

Logs can include data about user inputs, system processes, and hardware states. With the help of log monitoring software, teams can collect information and trigger alerts if something happens that affects system performance and health. Optimized system performance. Increased collaboration.

Analytics 209

Analytics Monitoring Artificial Intelligence DevOps 209

Smashing Magazine

AUGUST 22, 2021

HTTP/3: Performance Improvements (Part 2). HTTP/3: Performance Improvements (Part 2). In this second part, we will zoom in on the performance improvements that QUIC and HTTP/3 bring to the table for web-page loading. HTTP/3 performance features ( current article ). A Primer on Speed. Robin Marx.

Performance 105

Performance Network Latency Servers 105

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. That pricing won’t be sustainable, particularly as hardware shortages drive up the cost of building infrastructure.

Open Source 108

Open Source Artificial Intelligence Google Infrastructure 108

All Things Distributed

MARCH 19, 2018

Finally, re-training is performed every x-many minutes/hours/days to keep the models updated with new data. The algorithm state contains all the variables, statistics, and data structures needed to perform updates, that is, all that is required to continue training. Post-training model tuning and rich states.

Scalability 159

Scalability Hardware AWS Tuning 159

Dynatrace

AUGUST 12, 2020

As companies strive to innovate and deliver faster, modern software architecture is evolving at near the speed of light. This gives you deep visibility into your code running in Azure Functions, and, as a result, an understanding of its impact on overall application performance and user experience. So stay tuned! Dynatrace news.

Serverless 141

Serverless Azure Monitoring Lambda 141

SQL Performance

APRIL 27, 2020

Gen 5 is the primary hardware option now for most regions since Gen 4 is aging out. The business-critical tier has local SSD which provide much better IO performance with max data IOPS ranging from 8000 for a 2 vCore database up to 204,800 for an 80 vCore database. New Hardware Configuration for Provisioned Compute Tier.

Azure 55

Azure Database Serverless Hardware 55

HammerDB

OCTOBER 18, 2019

Nevertheless in this blog sometimes we do publish performance data to highlight best practices or potential configuration pitfalls and although we’ve mentioned this one before it is worth dedicating an entire post to it as this issue seems to appear numerous times running database workloads on Linux. hardware limits: 1000 MHz - 4.00

Benchmarking 63

Benchmarking Performance Hardware C++ 63

Percona

AUGUST 5, 2023

Horizontal and vertical MySQL partitions are techniques used to divide tables into smaller sections for improved performance and management. Each partition holds data that falls within a specific range, optimizing data handling and query speed. Watch this on-demand webinar from Percona to learn how! In version 5.7, Percona can help.

Strategy 40

Strategy Storage Database Best Practices 40

The Morning Paper

NOVEMBER 10, 2019

But the thing that really stands out to me as a key driving force in determining Snap’s design is the desire to be able to evolve Snap rapidly – i.e. being able to do regular releases of software upgrades to deploy new network functionality and performance optimisations. ” That’s 4-8x the speed of evolution and feedback cycles.

Network 92

Network Transportation Latency Entertainment 92

Dynatrace

OCTOBER 26, 2020

All your JMeter results in Dynatrace for better performance engineering. Christian Inzko , Performance Engineer out of our Klagenfurt Lab, is running a lot of performance tests to validate performance and scalability of our Dynatrace clusters. So stay tuned. Goal: sending metrics to Dynatrace.

Innovation 154

Innovation Metrics Hardware Games 154

The Morning Paper

MAY 21, 2019

But for this to be realized in a practical manner, the system has to (1) be able to accurately control its aggressiveness to minimize the impact on application performance, and (2) be resilient to the variation of cold memory behavior across different machines,clusters, and jobs. Enter zswap!

Software 78

Software Software Google Hardware 78

HammerDB

OCTOBER 12, 2018

This post complements the previous best practice guides this time with the focus on MySQL and MariaDB and achieving top levels of performance with the HammerDB MySQL TPC-C test. As is exactly the same with PostgreSQL for system choice a 2 socket system is optimal for MySQL OLTP performance. hardware limits: 1000 MHz - 3.80

Best Practices 40

Best Practices Scalability Performance C++ 40

Dynatrace

OCTOBER 22, 2019

This is why threads are often the source of scalability as well as performance issues. Identify and solve performance bottlenecks faster with continuous thread analysis. You can thereby identify and solve performance bottlenecks faster in your application. Dynatrace news. At this point, you might want to know the root cause.

Java 103

Java Scalability Hardware Architecture 103

SQL Performance

JUNE 21, 2019

What I find is very similar to backups: No DBCC CHECKDBs performed at all DBCC CHECKDBs being performed only on select databases DBCC CHECKDBs last performed months or years ago. Performing index maintenance by removing fragmentation from your indexes is still important. Index Maintenance.

Servers 49

Servers Azure Hardware Database 49

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

Percona

AUGUST 29, 2023

Reference tables can be replicated to all nodes for joins and foreign keys from distributed tables and for maximum read performance. Columnar storage of tables can compress data, speeding up scans and supporting fast projections, both on regular and distributed tables. The same can be said for Citus data sharding.

C++ 81

C++ Database Storage Testing 81

SQL Server According to Bob

JANUARY 11, 2020

This will help you increase system performance and avoid I/O environment errors. Atomicity A transaction must be an atomic unit of work; either all of its data modifications are performed or none of them are performed. Consistency When completed, a transaction must leave all data in a consistent state.

Servers 40

Servers Cache Media Hardware 40

Brendan Gregg

SEPTEMBER 5, 2017

Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters). 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.

Virtualization 76

Virtualization AWS Engineering Hardware 76

SQL Performance

MARCH 8, 2021

This can make it difficult to draw sound performance-tuning conclusions. This uses hardware, typically a crystal oscillator, that produces ticks at a very high constant rate regardless of processor speed, power settings, or anything of that nature. The clock keeps running at the same rate even during sleep.

Servers 95

Servers Tuning Architecture Processing 95

SQL Server According to Bob

JANUARY 11, 2020

​​ This is similar to the ​​ suspend and resume ​​ operations performed by ​​ the operating system. ​​ Performing ​​ safety ​​ checks ​​ of SQL Server and all other system components before production deployment is very important.

Servers 40

Servers Cache Database Media 40

Percona

NOVEMBER 3, 2023

PostgreSQL Cluster One coordinator node citus-coord-01 Three worker nodes citus1 citus2 citus3 Hardware AWS Instance Ubuntu Server 20.04, SSD volume type 64-bit (x86) c5.xlarge In order to speed up the benchmark indexes must be added. Repeating the benchmark once again demonstrates that performance has degraded somewhat.

Database 108

Database Benchmarking Latency C++ 108

High Scalability

NOVEMBER 25, 2019

To add elasticity, reliability and durability, these data centers are connected to Google Cloud platform using high speed, secure Google Interconnect network. Who performs what roles? It's a big team, we have Product managers, UX team, DevOps, scrum teams, architects, engineers performing various roles.

Architecture 52

Architecture Cache Azure Storage 52