Brendan Gregg

AUGUST 29, 2021

Reads usually have apps waiting on them; writes may not (write-back caching). biolatency From [bcc], this eBPF tool shows a latency histogram of disk I/O. This is a 64-Gbyte memory system, and 48 Gbytes is in the page cache (the file system cache). This shows many cache misses, with a hit ratio varying between 6.5

Cache 40

Cache C++ AWS Systems 40

Smashing Magazine

APRIL 17, 2019

2019-04-17T12:30:16+02:00. 2019-04-29T18:34:58+00:00. The browser caches the results of these lookups, but they can be slow. This typically happens once per server and takes up valuable time — especially if the server is very distant from the browser and network latency is high. Drew McLellan. The as Attribute.

Performance 107

Performance Games Servers Cache 107

Rigor

JULY 2, 2019

As an example, we see that the preferred address to access the online edition of the New York Times is [link] (we received an HTTP response code of 200 when requesting the site). Rigor’s waterfall chart indicates that this address has been permanently moved (given that we received an HTTP response code of 301 ).

Mobile 60

Mobile Traffic Google Latency 60

KeyCDN

SEPTEMBER 12, 2019

Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8 KeyCDN’s Cache Enabler plugin is fully compatible the HTML attributes that make images responsive. The main reason is because it decreases the latency to the user where they are located by serving your images from a POP physically closest to them.

Social Media 106

Social Media Media Google Website 106

The Netflix TechBlog

DECEMBER 17, 2019

This prevents code reuse across databases. This way, log event processing can resume event-by-event afterwards, eventually discovering the watermarks, without ever needing to cache log event entries. The same code is used for MySQL and PostgreSQL and can be used for other similar databases as well. Beresford, and Boerge Svingen.

Database 197

Database Traffic Transportation Open Source 197

The Netflix TechBlog

DECEMBER 17, 2019

Preventing code reuse across databases. This way, log event processing can resume event-by-event afterwards, eventually discovering the watermarks, without ever needing to cache log event entries. The same code is used for MySQL and PostgreSQL and can be used for other similar databases as well. Beresford, and Boerge Svingen.

Database 212

Database Traffic Transportation Open Source 212

Alex Russell

DECEMBER 18, 2022

Without beating around the bush, our ASP 2019 device was an Android that cost between $300-$350, new and unlocked. These devices feature: Eight slow, big.LITTLE ARM cores (A75+A55, or A73+A53) built on last-generation processes with very little cache. 4GiB of RAM. Qualcomm has some 'splainin to do.

Performance 113

Performance Network Mobile Latency 113