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. Much of my testing was on Linux 4.14.11 Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar. and 4.14.12

Performance 72

Performance Benchmarking Cache Tuning 72

Percona

DECEMBER 20, 2018

Linux OS Tuning for MySQL Database Performance. In this post we will review the most important Linux settings to adjust for performance tuning and optimization of a MySQL database server. AMD EPYC Performance Testing… or Don’t get on the wrong side of SystemD. Tuning InnoDB Primary Keys.

Database 48

Database Tuning Performance AWS 48

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. Much of my testing was on Linux 4.14.11 Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar. and 4.14.12

Performance 40

Performance Benchmarking Cache Tuning 40

Apica

MAY 10, 2019

These virtual users simulate realistic scenarios scripted and recorded with Apica’s ZebraTester tool so that hundreds, thousands, and millions of tests run concurrently in a Streaming companies/studios’ pre-production or production environments before the episodes are actually ‘aired.’

Testing 40

Testing Performance Social Media Wireless 40

HammerDB

OCTOBER 12, 2018

InnoDB is the storage engine that will deliver the best OLTP throughput and should be chosen for this test. . For anyone benchmarking MySQL with HammerDB it is important to understand the differences from sysbench workloads as HammerDB is targeted at a testing a different usage model from sysbench. innodb_file_per_table.

Best Practices 40

Best Practices Scalability Performance C++ 40

SQL Server According to Bob

JANUARY 11, 2020

For specific information on I/O tuning and balancing, you will find more details in the following document. NT Server and Disk Subsystem Performance [link] Torn I/O Torn I/O is often referred to as a ​​ torn page ​​ in SQL Server documentation. The SQLIO utility can be downloaded from the Microsoft Web site.

Servers 40

Servers Cache Media Hardware 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

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. How do you test your system? Selenium, Junit, Nose, Nightwatch and manual testing. Combination of unit, functional, integration and performance tests.

Architecture 52

Architecture Cache Azure Storage 52

Rigor

SEPTEMBER 11, 2019

After seeing companies struggle to find and fix frontend performance issues, Billy left HP and founded Zoompf, a web performance optimization company acquired by Rigor in 2015. He has a keen interest in web technologies, performance tuning, security, and the practical use of technology. Paul Irish. Paul Irish.

Performance 89

Performance Education Google Website 89