Brendan Gregg

DECEMBER 31, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. Virtual Memory. We help where we can. schedtool –B PID.

Tuning 61

Tuning AWS Best Practices Network 61

Brendan Gregg

DECEMBER 30, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. Virtual Memory. We help where we can. schedtool –B PID.

Tuning 52

Tuning AWS Best Practices Network 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. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. How long does it take to read the time?

Speed 126

Speed Java AWS Virtualization 126

Dynatrace

FEBRUARY 25, 2021

Since its introduction by AWS in 2014, AWS Lambda has revolutionized the compute space and boosted the entire serverless movement. Much of what’s covered in this blog post is taken from that talk. The virtual CPU is turned off. In a future blog post, we’ll explain how to interpret Lambda metrics. Stay tuned?for

Lambda 224

Lambda AWS Monitoring Serverless 224

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. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. How long does it take to read the time?

Speed 40

Speed Java AWS Virtualization 40

SQL Performance

JUNE 21, 2019

I wrote a blog about it years ago too, however as time has marched on, guidance has changed a bit. Jonathan Kehayias has written an blog post How much memory does my SQL Server actually need , with a formula that helps establish the baseline for the maximum memory value. For many years I've found users making the same mistakes.

Servers 49

Servers Azure Hardware Database 49

Brendan Gregg

SEPTEMBER 5, 2017

Search for recent blog posts on Linux containers, and try them out, and you'll piece together their capabilities and workings bit by bit. Both Xen and KVM have had many performance and security improvements, and workloads can now be tuned to run at almost bare metal speeds (say, a 3% loss or less).

Virtualization 76

Virtualization AWS Engineering Hardware 76