John McCalpin

FEBRUARY 17, 2025

In my previous post , I reviewed historical data on single-core/single-thread memory bandwidth in multicore processors from Intel and AMD from 2010 to the present. The increase in single-core memory bandwidth has been rather slow overall, with Intel processors only showing about a 2x increase over the 13 years from 2010 to 2023.

Latency 71

Latency Hardware Cache Systems 71

All Things Distributed

DECEMBER 5, 2010

By Werner Vogels on 05 December 2010 02:00 PM. There are two main types of DNS servers: authoritative servers and caching resolvers. But the real robustness of the DNS system comes through the way lookups are handled, which is what caching resolvers do. The Amazon.com 2010 Shareholder Letter Focusses on Technology.

Cloud 113

Cloud Internet Internet AWS 113

All Things Distributed

JUNE 20, 2017

In 2010, we opened our first AWS Region in Singapore and since then have opened additional regions: Japan, Australia, China, Korea, and India. This enables customers to serve content to their end users with low latency, giving them the best application experience. However, we do not plan to slow down and we are not stopping there.

AWS 126

AWS Logistics Cloud Social Media 126

John McCalpin

APRIL 25, 2023

For most high-end processors these values have remained in the range of 75% to 85% of the peak DRAM bandwidth of the system over the past 15-20 years — an amazing accomplishment given the increase in core count (with its associated cache coherence issues), number of DRAM channels, and ever-increasing pipelining of the DRAMs themselves.

Benchmarking 97

Benchmarking Cache Latency Tuning 97

John McCalpin

FEBRUARY 17, 2025

In my previous post , I reviewed historical data on single-core/single-thread memory bandwidth in multicore processors from Intel and AMD from 2010 to the present. The increase in single-core memory bandwidth has been rather slow overall, with Intel processors only showing about a 2x increase over the 13 years from 2010 to 2023.

Latency 40

Latency Hardware Cache Systems 40

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 103

Performance Latency Cache Virtualization 103

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