Brendan Gregg

JULY 14, 2019

BPF (eBPF) tracing is a superpower that can analyze everything, and I'll show you how in my upcoming book BPF Performance Tools: Linux System and Application Observability , coming soon from Addison Wesley. Since BPF does so many things, it is becoming a technology name and no longer an acronym. BPF is in the Linux kernel. ## Why Your Book?

Systems 40

Systems Performance Education Technology 40

Percona

APRIL 12, 2023

2017: MongoDB goes public, trading as MDB. and partners) and in the process, stifling the upstarts, the truly open source little folks dreaming big. We are really pleased with our Q1 performance and see it as continued validation of the massive market we are pursuing, our strong product market fit, and our ability to execute.”

Open Source 83

Open Source Programming Database Servers 83

Brendan Gregg

NOVEMBER 28, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance. I'd expect between 0.1%

Virtualization 40

Virtualization AWS Hardware Storage 40

Tasktop

JANUARY 27, 2021

Expanding on the significant role that virtual product development plays in modern automotive manufacturing, René and Mik discussed how value stream management (VSM) has enabled BMW to successfully expand its presence in the Chinese market. A plan for effectively reducing debt must be implemented to preserve existing and future performance).

Code 52

Code Automotive Government Network 52

The Morning Paper

NOVEMBER 8, 2020

Virtual consensus in Delos , Balakrishnan et al. Back in 2017 the engineering team at Facebook had a problem. While ultimately this new system should be able to take advantage of the latest advances in consensus for improved performance, that’s not realistic given a 6-9 month in-production target. Facebook, Inc. ), OSDI’2020.

Virtualization 126

Virtualization Latency Storage Systems 126

ACM Sigarch

FEBRUARY 23, 2018

Richard Thaler won the 2017 Nobel prize in Economics for his work on Behavioral Economics. Virtualization, for instance, was being addressed by IBM in the 1960s. Both virtualization and power burst onto the architecture community seemingly out of nowhere even though there was a clear historical basis and trend for both.

Architecture 47

Architecture Cache Hardware Virtualization 47

SQL Server According to Bob

DECEMBER 18, 2018

Durability is a cornerstone of any database system and starting with SQL Server 2017 on Linux Cumulative Update 6 (CU6), SQL Server on Linux enables “Forced Flush” behavior as described in this article , improving durability on non-Fua optimized systems. “Be Val and Dylan performing power outage durability testing and adding new tests.

Servers 90

Servers Media Cache Storage 90

Brendan Gregg

SEPTEMBER 5, 2017

There's also a ZFS send/recv code path that should try to use the TASK_INTERRUPTIBLE flag (as suggested by a coworker), to avoid a kernel hang (can't kill -9 the process). On Linux, containers are a combination of namespaces (restricting what a process sees) and cgroups (similar to Solaris resource controls).

Virtualization 76

Virtualization AWS Engineering Hardware 76

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

O'Reilly

FEBRUARY 18, 2020

Up until 2017, the ML+AI topic had been amongst the fastest growing topics on the platform. After several years of steady climbing—and after outstripping Java in 2017—Python-related interactions now comprise almost 10% of all usage. there’s a Python library for virtually anything a developer or data scientist might need to do.

Software Architecture 134

Software Architecture DevOps Data Engineering Architecture 134

IO River

NOVEMBER 2, 2023

Delta Air Lines experienced a severe system outage in 2017, resulting in flight cancellations and delays across their network. The company had to compensate customers for their losses, including reimbursement for flights, accommodation, and $135,000 over tarmac delays.What Is The Process For Calculating Availability?By

Availability 52

Availability Social Media Traffic Games 52

IO River

NOVEMBER 2, 2023

Delta Air Lines experienced a severe system outage in 2017, resulting in flight cancellations and delays across their network. The company had to compensate customers for their losses, including reimbursement for flights, accommodation, and $135,000 over tarmac delays.What Is The Process For Calculating Availability?By

Availability 52

Availability Social Media Traffic Games 52

The Symphonia

DECEMBER 6, 2017

Correspondingly, 3GB functions should see a 2x CPU performance improvement over 1.5GB Lambdas, but this is through doubling the number of cores the function has access to, rather than double the virtualized time-slices. Lambda functions can now be configured to have 3GB RAM , up from 1.5GB. Also allows for creating new files in line.

Serverless 40

Serverless Lambda AWS Traffic 40

Percona

AUGUST 15, 2023

This blog was originally published in February 2017 and was updated in August 2023. MySQL replication is a process in which data from a primary MySQL database is copied and sent to one or more secondary databases, known as replicas. Start the replica server’s replication process. What is MySQL Replication?

Servers 52

Servers Database Availability Traffic 52

Dynatrace

OCTOBER 17, 2019

We’re currently in a technological era where we have a large variety of computing endpoints at our disposal like containers, Platform as a Service (PaaS), serverless, virtual machines, APIs, etc. Treating these different processes as code will ensure that best practices are followed. with more being added continually.

Code 108

Code Infrastructure DevOps Serverless 108

SQL Performance

JULY 8, 2020

Unnesting/substitution of table expressions is a process of taking a query that involves nesting of table expressions, and as if substituting it with a query where the nested logic is eliminated. What actually happens is that the query parsing process produces an initial tree of logical operators closely reflecting the original query.

Servers 110

Servers Code Processing Performance 110

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

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. Performant – The service would need to be able to maintain consistent performance in the face of diverse customer workloads.

Internet 128

Internet Internet AWS Performance 128

Dynatrace

FEBRUARY 25, 2021

since 2017, and many customers have used it with great success while we collected requirements for the next iteration of our Lambda extension. We’re talking about a few hundred milliseconds, but this can have a considerable performance impact when cold starts occur too often. The virtual CPU is turned off.

Lambda 215

Lambda AWS Monitoring Serverless 215

Smashing Magazine

DECEMBER 22, 2021

The right tools at the right time, help streamline the design process. User experience research is a crucial component of the human-centered design process. But how do you tackle the task and integrate a UX research process into your team’s workflow? In the worst case, customers might even abandon the process.

Airlines 128

Airlines Mobile Design Strategy 128

Alex Russell

DECEMBER 31, 2023

Barrels of virtual ink has been spilt documenting unfair app store terms, conditions, and competition. Meanwhile, in the EU, Apple attempted to wriggle out of regulations that might bring about proper browser choice by arguing that Safari is actually three under-performing browsers. Or spot-check coverage of the NTIA's February report.

Google 93

Google Mobile Games Strategy 93

Percona

JULY 7, 2023

HA in PostgreSQL databases delivers virtually continuous availability, fault tolerance, and disaster recovery. It enables businesses and organizations to meet uptime and service level objectives, protect business-critical data, and maintain performant databases. The same changes made in the primary database are made in the replicas.

Availability 85

Availability Open Source Architecture Database 85

Percona

SEPTEMBER 1, 2023

This blog was originally published in October 2017 and was updated in September 2023. Scalability is a significant concern, as databases must handle growing data volumes and user demands while maintaining peak performance. A poorly chosen shard key can lead to performance issues.

Best Practices 73

Best Practices Traffic Database Servers 73

Alex Russell

APRIL 29, 2021

Classics of the genre include: Apple's just focused on performance! The Performance Argument. As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. Web Performance APIs.

Media 145

Media Games Education Engineering 145

Brendan Gregg

AUGUST 8, 2017

This measures demand, which can be greater than what the system is currently processing. If they are higher than your CPU count, then you might have a performance problem (it depends). The load average is an average of the number of runnable processes over a given time period. cat /proc/loadavg. 42/3411 43603. . -

Latency 111

Latency Metrics C++ Systems 111

SQL Server According to Bob

DECEMBER 31, 2018

I was doing backups and clean-ups and ran across a couple of sample projects for XEvent and event_sequence processing I thought others might find helpful. protected virtual void Dispose(bool bDisposing) { if (true == bDisposing) { m_MatchingTree.Dispose(); m_MatchingTree = null; if (null != The XEProfiler Sample. Start(); }.

Efficiency 40

Efficiency Code Servers Cache 40