The Morning Paper

SEPTEMBER 24, 2019

Each app was then executed on a physical mobile phone equipped with a custom OS and network monitor. The apps are driven using Android’s Application Exerciser Monkey which injects a pseudo-random stream of simulated user input events into the app (a UI fuzzer). most apps). most apps). Finding out how those apps leak data.

Systems 74

Systems Traffic Network Google 74

HammerDB

APRIL 19, 2023

Instead, focus on understanding what the workloads exercise to help us determine how to best use them to aid our performance assessment. As database performance is heavily influenced by the performance of storage, network, memory, and processors, we must understand the upper limit of these key components. 4.22 %usr 38.40 0.42 %sys 9.52

Performance 55

Performance Benchmarking Cache Storage 55

Brendan Gregg

JUNE 30, 2018

sounds like a homework exercise of purely academic value. I've refuted many benchmarks by showing that they would require a network throughput that would far exceed the maximum network bandwidth (off by, for example, as much as 10x!). Networking is the easiest to check. This is really asking "what's the limiter?"

Benchmarking 47

Benchmarking Latency Cache Network 47

Speed Curve

DECEMBER 13, 2023

A couple of things worth noting: All of the sites in the leaderboard sites are pretty speedy, so this is NOT a name-and-shame exercise. Are you using a content delivery network (CDN) to bring elements like images closer to your users, so that delivery times are faster? Are you compressing and caching the right things?

Performance 78

Performance Retail Benchmarking Ecommerce 78

Brendan Gregg

JUNE 29, 2018

sounds like a homework exercise of purely academic value. I've refuted many benchmarks by showing that they would require a network throughput that would far exceed the maximum network bandwidth (off by, for example, as much as 10x!). Networking is the easiest to check. This is really asking "what's the limiter?"

Benchmarking 40

Benchmarking Latency Cache Network 40

The Morning Paper

NOVEMBER 14, 2019

It’s another networking paper to close out the week (and our coverage of SOSP’19), but whereas Snap looked at traffic routing within the datacenter, Taiji is concerned with routing traffic from the edge to a datacenter. Sharing is caring caching. For example, balance utilisation across all data centers, or optimise for network latency.

Traffic 42

Traffic Internet Internet Latency 42

The Morning Paper

DECEMBER 8, 2019

The beauty of persistent memory is that we can use memory layouts for persistent data (with some considerations for volatile caches etc. Traditionally one of the major costs when moving data in and out of memory (be it to persistent media or over the network) is serialisation. in front of that memory , as we saw last week).

Hardware 56

Hardware Programming Media Storage 56

John McCalpin

AUGUST 1, 2018

This is an intellectually challenging and labor-intensive exercise, requiring detailed review of the published details of each of the components of the system, and usually requiring significant “detective work” (using customized microbenchmarks, hardware performance counter analysis, and creative thinking) to fill in the gaps.

Hardware 40

Hardware Transportation Performance Latency 40

John McCalpin

AUGUST 1, 2018

This is an intellectually challenging and labor-intensive exercise, requiring detailed review of the published details of each of the components of the system, and usually requiring significant “detective work” (using customized microbenchmarks, hardware performance counter analysis, and creative thinking) to fill in the gaps.

Hardware 40

Hardware Transportation Performance Latency 40

Speed Curve

APRIL 7, 2025

My work in the past decade on performance has been an exercise in working backwards from strategy to tactics. They're doing so in an ongoing way, and to the extent that the web is a shitty, underpowered experience on most of the world's devices across most of the world's networks, we are handing our enemies a gift.

Performance 52

Performance Energy Google Strategy 52