Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Alex Russell

MARCH 6, 2021

TL;DR: A lot has changed since 2017 when we last estimated a global baseline resource per-page resource budget of 130-170KiB. A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. The Moto G4 , for example. Here begins our 2021 adventure.

Performance 124

Performance Network Cache Metrics 124

SQL Performance

APRIL 8, 2019

Back on December 5, 2017, Microsoft announced that they were using AMD EPYC 7551 processors in their storage-optimized Lv2-Series virtual machines. The L3 cache size is 64MB. The L3 cache size is 64MB. They feature low latency, local NVMe storage that can directly leverage the 128 PCIe 3.0 Memory (GiB).

Azure 42

Azure Virtualization Storage Benchmarking 42

Smashing Magazine

JANUARY 7, 2019

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. PRPL stands for Pushing critical resource, Rendering initial route, Pre-caching remaining routes and Lazy-loading remaining routes on demand. An application shell is the minimal HTML, CSS, and JavaScript powering a user interface.

Performance 103

Performance Cache Metrics Network 103

Alex Russell

OCTOBER 22, 2017

— Alex Russell (@slightlylate) October 4, 2017. It simulates a link with a 400ms RTT and 400-600Kbps of throughput (plus latency variability and simulated packet loss). Simulated packet loss and variable latency, however, can make benchmarking extremely difficult and slow. Maybe "ambush by JS"? First Load.

Performance 68

Performance Benchmarking Network Mobile 68

Alex Russell

APRIL 29, 2021

Chrome has missed several APIs for 3+ years: Storage Access API. WebGL 2 launched for other platforms on Chrome and Firefox in 2017. For heavily latency-sensitive use-cases like WebXR, this is a critical component in delivering a good experience. Where Chrome Has Lagged. The underlying graphics capabilities from OpenGL ES 3.0

Media 145

Media Games Education Engineering 145