Percona

MAY 2, 2023

ChatGPT: The InnoDB buffer pool is used by MySQL to cache frequently accessed data in memory. If we expand the cache concept more, the buffer pool could be even less if the working set (hot data) is smaller. The answer does not consider the queue or latency of the sample, which could indicate a disk with issues.

Social Media 120

Social Media Database Servers Cache 120

Alex Russell

APRIL 29, 2021

webcam access via getUserMedia() or the Media Session API ) may attend deceptively small expansions in exposed API surface. Audio Worklets are a fundamental enabler for rich media and games on the web. Media Recorder. Media Source API (a.k.a. "MSE"). Meanwhile, truly transformative features (e.g. Audio Worklets.

Media 145

Media Games Education Engineering 145

The Morning Paper

MARCH 17, 2020

higher latency and lower bandwidth)… We have found the actual behavior of Optane DIMMs to be more complicated and nuanced than the "slower, persistent DRAM" label would suggest. The physical media is accessed in chunks of 256 bytes (an XPLine). The read latency for Optane is 2x-3x higher than DRAM.

Scalability 59

Scalability Latency Cache Media 59

SQL Server According to Bob

JANUARY 11, 2020

Briefly, WAL requires that all the transaction log records associated with a ​​ particular ​​ data page be flushed to stable media before the data page itself can be flushed to stable media. Stable Media Stable media is often confused with physical storage.

Servers 40

Servers Cache Media Hardware 40

The Morning Paper

DECEMBER 8, 2019

(Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data. The starting point is a set of three asumptions for an NVM-based programming model: Compared to traditional persistent media, NVM is fast.

Hardware 56

Hardware Programming Media Storage 56

SQL Server According to Bob

JANUARY 11, 2020

​​ Read Retry When a read from stable media returns an error, ​​ the read operation is ​​ tried ​​ again. ​​ Under certain conditions, ​​ issuing the same read returns the correct data.

Servers 40

Servers Cache Database Media 40

Alex Russell

OCTOBER 22, 2017

media="(min-width: 990px)"> <source srcset="img@tablet.png, img@tablet-2x.png 2x". media="(min-width: 750px)"> <img srcset="img@mobile.png, img@mobile-2x.png 2x". It simulates a link with a 400ms RTT and 400-600Kbps of throughput (plus latency variability and simulated packet loss). alt="I don't know why.

Performance 68

Performance Benchmarking Network Mobile 68