Brendan Gregg

MARCH 8, 2020

Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic.

Systems 138

Systems Performance Benchmarking Tuning 138

The Morning Paper

MARCH 10, 2020

Characterizing, modeling, and benchmarking RocksDB key-value workloads at Facebook , Cao et al., Or in the case of key-value stores, what you benchmark. So if you want to design a system that will offer good real-world performance, it’s really useful to have benchmarks that accurately represent real-world workloads.

Benchmarking 59

Benchmarking Storage Cache Open Source 59

Brendan Gregg

JUNE 29, 2018

A co-worker introduced me to Craig Hanson and Pat Crain's performance mantras, which neatly summarize much of what we do in performance analysis and tuning. These have inspired me to summarize another performance activity: evaluating benchmark accuracy. If the benchmark reported 20k ops/sec, you should ask: why not 40k ops/sec?

Benchmarking 40

Benchmarking Latency Cache Network 40

Scalegrid

JANUARY 25, 2024

These can help you ensure your system’s health and quickly perform root cause analysis of any performance-related issue you might be encountering. Best Practices for Redis Performance Tuning Optimizing memory allocation is essential for improving Redis’s performance. You can pick a smart selection of relevant metrics from these.

Metrics 130

Metrics Monitoring Latency Cache 130

Dynatrace

FEBRUARY 10, 2022

With transaction analysis and code-level insights, Dynatrace detects whenever user-generated inputs are sent to vulnerable application components without sanitization. A perfect OWASP benchmark score for injection attacks – 100% accuracy and zero false positives – impressively proves the precision of our approach.

Traffic 240

Traffic Benchmarking Innovation Java 240

Dynatrace

MAY 5, 2021

Quality gates are benchmarks in the software delivery lifecycle that define specific, measurable, and achievable success criteria a service must meet before moving to the next phase of the software delivery pipeline. Enforcing benchmarks in real time. What are quality gates? How Intuit puts Dynatrace to work.

Benchmarking 195

Benchmarking Latency Speed Software 195

Dynatrace

AUGUST 5, 2020

This is definitely a great starting benchmark against which to optimize your application. The new metrics are shown in the waterfall chart and can be analyzed on demand via multidimensional analysis. In the Detailed analysis section, select your preferred metric, for example, Largest contentful paint, from the Analyze drop-down list.

Metrics 226

Metrics Monitoring Performance Benchmarking 226

Dynatrace

MAY 30, 2020

To deliver outstanding customer experience for your applications and websites, you need reliable benchmarks that measure what good customer experience looks like. Analyze issues across different dimensions in Multidimensional analysis view. Leverage the new metrics and Visually complete during user action analysis.

Metrics 134

Metrics Performance Benchmarking Monitoring 134

Dynatrace

MARCH 25, 2022

“We were able to … fine-tune our systems in a very performant way,” notes Hood. ” Davis AI and automatic root-cause analysis have paved the way for automated problem remediation. “Our brain, the source of that knowledge, was the information coming from Dynatrace.” ” B2B portal.

Benchmarking 182

Benchmarking Efficiency DevOps Tuning 182

Scalegrid

JULY 13, 2020

Compare ease of use across compatibility, extensions, tuning, operating systems, languages and support providers. PostgreSQL offers more light-weight tuning capabilities, like their Query Optimizer, and DBaaS platforms like ScaleGrid offer advanced slow query analysis. Compare Ease of Use.

Open Source 244

Open Source Tuning C++ Database 244

Brendan Gregg

MARCH 7, 2020

Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic.

Systems 52

Systems Performance Benchmarking Tuning 52

Brendan Gregg

MARCH 7, 2020

Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic.

Systems 52

Systems Performance Benchmarking Tuning 52

Scalegrid

OCTOBER 24, 2019

MySQL Performance Benchmark Configuration. For some of the tests on the ScaleGrid deployment, MySQL configuration binlog_group_commit_sync_delay is tuned so that the slave replication lag does not go beyond 30s. community edition. innodb_buffer_pool_size. innodb_log_file_size. innodb_flush_log_at_trx_commit. sync_binlog. LOGICAL_CLOCK.

AWS 183

AWS Latency Performance Performance Testing 183

Brendan Gregg

SEPTEMBER 25, 2021

This was a weird problem to think about: Time itself had now become a resource and target of performance analysis. I'm including this step as a reminder for anyone following this kind of analysis. This server is spending about a third of its CPU cycles just checking the time! That changed by the end of the year.) ## 5.

Speed 103

Speed Java AWS Virtualization 103

Brendan Gregg

FEBRUARY 9, 2018

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. I then analyzed performance during the benchmark ([active benchmarking]), and used other benchmarks to confirm findings. Much of my testing was on Linux 4.14.11

Performance 72

Performance Benchmarking Cache Tuning 72

IO River

NOVEMBER 15, 2023

Two of them are particularly gnarly: fine-tuning rules to perfection and managing a WAF over a multi-CDN architecture. Aggregating this data into a single, coherent view for analysis becomes an additional hurdle. Benchmarks should be established to measure the latency introduced by the WAF, ensuring it stays within acceptable limits.‍Conclusion‍In

Traffic 52

Traffic Network Logistics Architecture 52

IO River

NOVEMBER 2, 2023

Two of them are particularly gnarly: fine-tuning rules to perfection and managing a WAF over a multi-CDN architecture. Aggregating this data into a single, coherent view for analysis becomes an additional hurdle. Let's dive deep into these challenges.‍1. You'll have logs and analytics scattered across different CDNs.

Traffic 40

Traffic Network Logistics Architecture 40

Brendan Gregg

FEBRUARY 8, 2018

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. I then analyzed performance during the benchmark ([active benchmarking]), and used other benchmarks to confirm findings. Much of my testing was on Linux 4.14.11

Performance 40

Performance Benchmarking Cache Tuning 40

Rigor

JANUARY 13, 2020

In her book, Lara Hogan helps you approach projects with page speed in mind, showing you how to test and benchmark which design choices are most critical. Web Performance Tuning. Designing for Performance. High Performance Responsive Design. Professional Website Performance. Professional Website Performance. Website Optimization.

Performance 75

Performance Social Media Website Website Performance 75

Brendan Gregg

SEPTEMBER 25, 2021

This was a weird problem to think about: Time itself had now become a resource and target of performance analysis. I'm including this step as a reminder for anyone following this kind of analysis. This server is spending about a third of its CPU cycles just checking the time! That changed by the end of the year.) ## 5.

Speed 40

Speed Java AWS Virtualization 40

KeyCDN

AUGUST 15, 2019

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. Web performance is a broad subject, and you’ll find no shortage of performance testing tips and tutorials all over the web. What is Performance Testing?

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Smashing Magazine

JANUARY 7, 2022

Worse yet, once the work is batched they insert user research that should have been done to inform the original work effort to what the real benchmark (MVP) should be. It is far better to maintain, tune, and prepare for when the time comes for that quick tire change. Large preview ).

Design 96

Design Logistics Strategy Benchmarking 96

John McCalpin

JANUARY 22, 2018

Hardware performance counter results for a simple benchmark code calling Intel’s optimized DGEMM implementation for this processor (from the Intel MKL library) show that about 20% of the dynamic instruction count consists of instructions that are not packed SIMD operations (i.e., addl $1, %eax vfmadd213pd %zmm16, %zmm17, %zmm29.

Latency 40

Latency Hardware Code Testing 40

Adrian Cockcroft

JUNE 21, 2022

Another big jump, but now it was my job to run benchmarks in the lab, and write white papers that explained the new products to the world, as they were launched. 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

Rigor

SEPTEMBER 11, 2019

Find his research and analysis on the HTTP Archive Discussion forums. He has a keen interest in web technologies, performance tuning, security, and the practical use of technology. Prior to founding start-ups, Luke was an Entrepreneur in Residence (EIR) at Benchmark Capital , the Chief Design Architect (VP) at Yahoo!,

Performance 89

Performance Education Google Website 89

High Scalability

NOVEMBER 25, 2019

Eventually, we resorted to caching the events in memory for a short duration and also tuning the GC settings on those nodes as we are doing a lot of young generation collections. Nagios, Grafana and New Relic and some internal proactive exception analysis are used. How do you health check your server and networks?

Architecture 52

Architecture Cache Azure Storage 52