Brendan Gregg

FEBRUARY 9, 2018

The recently revealed [Meltdown and Spectre] bugs are not just extraordinary issues of security, but also performance. The patches that workaround Meltdown introduce the largest kernel performance regressions I've ever seen. Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar.

Performance 75

Performance Benchmarking Cache Tuning 75

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 ). Robin Marx. 2021-08-23T06:20:00+00:00.

Performance 106

Performance Network Latency Servers 106

Brendan Gregg

SEPTEMBER 5, 2021

I have been surprised many times by unexpected performance issues, so I thought I should check their instances anyway. The other colors are yellow for C++, and red for other user-level code.) The ZFS Adapative Replacement Cache (ARC) is the main memory cache for the file system. I worked on this code back at Sun.

Cache 52

Cache Cloud Java Tuning 52

Brendan Gregg

FEBRUARY 8, 2018

The recently revealed [Meltdown and Spectre] bugs are not just extraordinary issues of security, but also performance. The patches that workaround Meltdown introduce the largest kernel performance regressions I've ever seen. Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar.

Performance 40

Performance Benchmarking Cache Tuning 40

Brendan Gregg

SEPTEMBER 5, 2021

I have been surprised many times by unexpected performance issues, so I thought I should check their instances anyway. The other colors are yellow for C++, and red for other user-level code.) The ZFS Adapative Replacement Cache (ARC) is the main memory cache for the file system. I worked on this code back at Sun.

Cache 40

Cache Cloud Java Tuning 40

Smashing Magazine

AUGUST 9, 2021

Often they make it seem as if HTTP/3 is a revolution in performance, while it is really a more modest (yet still useful!) It was heralded as an amazing performance revolution, with exciting new features such as server push, parallel streams, and prioritization. HTTP/3 performance features ( coming up soon! ).

Transportation 145

Transportation Internet Internet Network 145

Percona

JANUARY 17, 2019

In this article, we will look at how this can improve the reporting/analytical query performance in MySQL. Aurora Parallel Query response time (for queries which can not use indexes) can be 5x-10x better compared to the non-parallel fully cached operations. The second and third run used the cached data. MySQL on ec2.

Cache 46

Cache C++ AWS Airlines 46

Smashing Magazine

SEPTEMBER 6, 2021

If after the previous two parts — HTTP/3 history and core concepts and HTTP/3 performance features — you’re convinced that starting to use the new protocols is a good idea (and you should be!), HTTP/3 performance features. then this final piece includes all you need to know to get started! What Does It All Mean?

Network 105

Network Servers Cache Traffic 105

The Netflix TechBlog

OCTOBER 18, 2019

a) Standardized Logging from the treatment services, b) Real-time stream processing over Apache Flink for member activity joins, and c) an Apache Spark client for attribution and reward computation. In particular, he talked about the misattribution potential in a complex microservice architecture where often intermediary results are cached.

Infrastructure 126

Infrastructure Metrics Architecture Efficiency 126

The Netflix TechBlog

OCTOBER 18, 2019

a) Standardized Logging from the treatment services, b) Real-time stream processing over Apache Flink for member activity joins, and c) an Apache Spark client for attribution and reward computation. In particular, he talked about the misattribution potential in a complex microservice architecture where often intermediary results are cached.

Infrastructure 100

Infrastructure Metrics Architecture Efficiency 100

HammerDB

NOVEMBER 5, 2018

If you are new to running Oracle, SQL Server, MySQL and PostgreSQL TPC-C workloads with HammerDB and have needed to investigate I/O performance the chances are that you have experienced waits on writing to the Redo, Transaction Log or WAL depending on the database you are testing. A good example of how tuning is an iterative process.

Benchmarking 40

Benchmarking Database C++ Virtualization 40

High Scalability

NOVEMBER 25, 2019

Edge caching. In general, Egnyte connect architecture shards and caches data at different levels based on: Amount of data. Nginx for disk based caching. We use different types of caching techniques depending on the problem statements. Disk based caching. Hybrid Sync. On prem data processing. Offline access.

Architecture 52

Architecture Cache Azure Storage 52

Smashing Magazine

JUNE 26, 2020

Fewer external files mean fewer HTTP requests, but the benefits of embedding go far beyond performance. As the letter d is used for two adjacent areas, the item placed using that letter will occupy both: body { grid-template-areas: "a b c" "d d e" "f g h"; }. They’re also useful for adding unusual touches to a design.

Design 95

Design Media C++ Energy 95

SQL Server According to Bob

JANUARY 11, 2020

Character POS ASCII Value Formula Value A 1 65 67 C 2 67 69 Checksum 136 Comparing ​​ the checksum values indicates ​​ that the values do not match and ​​ damage ​​ has occurred to the data.

Servers 40

Servers Cache Database Media 40