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. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. I'm including this step as a reminder for anyone following this kind of analysis.

Speed 126

Speed Java AWS Virtualization 126

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. When the word “performance” is heard, most people immediately think of speed. What is Performance Testing?

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Dynatrace

OCTOBER 22, 2019

Thread dumps are now a thing of the past; the future belongs to 24×7 continuous thread analysis. Identify and solve performance bottlenecks faster with continuous thread analysis. You’ll find this new feature in the CPU profiler at Diagnostic tools > CPU analysis.

Java 103

Java Scalability Hardware Architecture 103

Dynatrace

NOVEMBER 15, 2021

Log monitoring, log analysis, and log analytics are more important than ever as organizations adopt more cloud-native technologies, containers, and microservices-based architectures. Logs can include data about user inputs, system processes, and hardware states. Dynatrace news. billion in 2020 to $4.1 What is log monitoring?

Analytics 211

Analytics Monitoring Artificial Intelligence DevOps 211

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. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. I'm including this step as a reminder for anyone following this kind of analysis.

Speed 40

Speed Java AWS Virtualization 40

O'Reilly

NOVEMBER 28, 2023

AI users say that AI programming (66%) and data analysis (59%) are the most needed skills. 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.

Open Source 108

Open Source Artificial Intelligence Google Infrastructure 108

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. Post-training model tuning and rich states. Principal Component Analysis (PCA).

Scalability 159

Scalability Hardware AWS Tuning 159

Dynatrace

OCTOBER 26, 2020

With the rich set of features in Dynatrace for diagnostics (check out my Advanced Diagnostics with Dynatrace YouTube Tutorial ) it speeds up analysis and diagnostics for Christian significantly. So stay tuned. If you want to replicate Christians work – here are the software and hardware specs: Hardware.

Innovation 155

Innovation Metrics Hardware Games 155

The Morning Paper

MAY 21, 2019

Using zswap means that no new hardware solutions are required, enabling rapid deployment across clusters. These are used to perform offline analysis for potential memory savings under different cold-age thresholds. ML-based auto-tuning. Memory pages moved to zswap are compressed (but the compressed pages stay in memory).

Software 78

Software Software Google Hardware 78

Percona

AUGUST 29, 2023

Its query engine not only parallelizes incoming SQL queries for time series but also has the ability to create column-wise tables making it ideal for OLAP analysis duties. Columnar storage of tables can compress data, speeding up scans and supporting fast projections, both on regular and distributed tables.

C++ 82

C++ Database Storage Testing 82

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). My rock solid experience with Ubuntu is on an LTS release. ## Crash Dump Analysis It can be done.

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. Alternate designs.

Servers 95

Servers Tuning Architecture Processing 95

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. 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.

Architecture 52

Architecture Cache Azure Storage 52