Brendan Gregg

JULY 4, 2021

BBR: Congestion-Based Congestion Control,” [link] 2016 - [Gregg 16] Brendan Gregg, “Unikernel Profiling: Flame Graphs from dom0,” [link] Jan 2016 - [Gregg 16b] Brendan Gregg, “Linux 4.X

Performance 52

Performance Latency Hardware Storage 52

ACM Sigarch

APRIL 26, 2018

They introduced the architecture of coarse grain reconfigurable array (CGRA) for statically scheduled data flow computing in HOTCHIPS’17 and its software stack of compiler and linker in ICCAD’17. TPU1 focused on the inference tasks, and has been deployed in the datacenter since 2015. FPU: Floating Processing Unit (FPU).

Hardware 99

Hardware Artificial Intelligence Architecture Google 99

Brendan Gregg

NOVEMBER 29, 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. It's an exciting development in cloud computing: hardware virtualization is now fast. It's using software and coordination between the hypervisor and guest to improve performance.

Virtualization 111

Virtualization AWS Hardware Storage 111

Smashing Magazine

JUNE 3, 2022

And today, we still have type in a digital context, but it travels through cables, wirelessly on smartphones, and in virtual reality glasses in 3D. Thus, one of the two typeface x-height’s will seem to be larger in size, although it may be the same point size in the software. Are Typefaces Tools, Software, Objects, Products Or What?

Performance 110

Performance Design Best Practices Testing 110

SQL Server According to Bob

JANUARY 5, 2017

As Slava highlights in his recent blog post , he also contacted me in early 2015 to assist with supportability of SQL Server on Linux. Find those same concepts for software and you can do the exact same things, no virtualization and no performance or functionality compromises.

Servers 40

Servers Operating System C++ Software Engineering 40

Dynatrace

APRIL 5, 2021

Azure is a large and growing cloud computing ecosystem that empowers its users to access databases, launch virtual servers, create websites or mobile applications, run a Kubernetes cluster, and train machine learning models, to name a few examples. Consider using virtual machines or specialized frameworks for these types of tasks.

Azure 137

Azure Serverless IoT Lambda 137

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. It's an exciting development in cloud computing: hardware virtualization is now fast. It's using software and coordination between the hypervisor and guest to improve performance.

Virtualization 40

Virtualization AWS Hardware Storage 40

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). But I'm not completely sure.

Speed 126

Speed Java AWS Virtualization 126

Brendan Gregg

MARCH 16, 2024

To explain this example in more detail: The profiler periodically interrupts software execution, and for those disconnected stacks it happens to be the execution of the kernel software ("vfs*", "ext*", etc.). These partial stacks get grouped together on the left. Click here for a longer explanation.

Java 145

Java Cache Google Hardware 145

The Netflix TechBlog

AUGUST 29, 2023

In 2010, however, nearly none of it existed: the CNCF wasn’t formed until 2015! The abstractions that Eureka provides for this are Virtual IPs (VIPs) for insecure communication, and Secure VIPs (SVIPs) for secure. Today we have a wealth of tools, both OSS and commercial, all designed for cloud-native environments.

Traffic 220

Traffic Latency Cloud C++ 220

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). But I'm not completely sure.

Speed 40

Speed Java AWS Virtualization 40

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object).

Speed 52

Speed Java AWS Virtualization 52

Enprowess

MAY 24, 2022

More incredible Speed with Virtual DOM. Reactjs can help your business in web and mobile application development by bringing fast speed using the virtual DOM. Virtual DOM of React refreshes only parts of the page, so it is faster than the conventional full refresh model. Virtual DOM is an additional feature offered by React.

Mobile 52

Mobile Open Source Virtualization Speed 52

Brendan Gregg

AUGUST 8, 2017

I generated this using my offcputime tool from [bcc] (this tool needs eBPF features from Linux 4.8+), and my [flame graph] software: #./bcc/tools/offcputime.py rc5-virtual (bgregg-xenial-bpf-i-0b7296777a2585be1) 08/01/2017 _x86_64_ (8 CPU) 10:15:51 PM UID PID %usr %system %guest %CPU CPU Command 10:16:51 PM 0 18468 2.85 termc$ uptime.

Latency 111

Latency Metrics C++ Systems 111

Smashing Magazine

JANUARY 11, 2021

compared to early 2015. In 2015, Google introduced Brotli , a new open-source lossless data format, which is now supported in all modern browsers. Faster devices on faster networks have virtually no stalls. You can use list virtualization libraries like react-window to optimize long lists as well ( thanks, Addy Osmani! ).

Performance 145

Performance Cache Media Metrics 145