Speed Curve

JUNE 14, 2021

My journey into performance started in the late 1990s, while I was working for an elearning provider and discovering the challenges of delivering rich content over the internet. We were already using both synthetic and network-based real user monitoring (RUM) tools to measure how fast our site was, so we knew we had room to improve.

Retail 52

Retail Internet Internet Education 52

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. There's no Java stack—there should be a tower of green Java methods—instead there's only a single green frame or two.

Speed 126

Speed Java AWS Virtualization 126

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. This is how Java flame graphs looked at the time. Colleagues/Internet I love using Linux performance tools.

Speed 52

Speed Java AWS Virtualization 52

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. There's no Java stack—there should be a tower of green Java methods—instead there's only a single green frame or two.

Speed 40

Speed Java AWS Virtualization 40

Sutter's Mill

MARCH 11, 2024

Yet we still call C#, Go, Java, Python, and similar languages “safe.” If you doubt, please run (don’t walk) and ask ChatGPT about Java and C# problems with: access-unconstructed-object bugs (e.g., Do configure your servers correctly, especially public Internet-facing ones. Do track a software bill of materials for your projects.

C++ 143

C++ Programming Code Java 143