Percona

APRIL 17, 2023

The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all. Make sure the drives are mounted with noatime and also if the drives are behind a RAID controller with appropriate battery-backed cache.

Best Practices 52

Best Practices Design Tuning Database 52

Percona

AUGUST 10, 2018

In a best case scenario where read latency is 0 milliseconds, autovacuum can wake up and go for sleep 50 times (1000 milliseconds / 20 ms) because the delay between wake-ups needs to be 20 milliseconds. ProxySQL Query Cache can scale well and help your database achieve a significant performance boost. 1 second = 1000 milliseconds).

Tuning 45

Tuning Cache Database Storage 45

The Netflix TechBlog

SEPTEMBER 24, 2021

As described by the white paper Apple ProRes ( link ), the target data rate of the Apple ProRes HQ for 1920x1080 at 29.97 From chunk encoding to assembly and packaging, the result of each previous processing step must be uploaded to cloud storage and then downloaded by the next processing step. is 220 Mbps.

Cloud 237

Cloud Media Storage Cache 237

SQL Server According to Bob

JANUARY 11, 2020

This White Paper is for informational purposes only. Stable Media Stable media is often confused with physical storage. SQL Server defines stable media as storage that can survive system restart or common failure. This cache is often supported by a battery-powered backup facility.

Servers 40

Servers Cache Media Hardware 40

SQL Server According to Bob

JANUARY 11, 2020

This White Paper is for informational purposes only. Time of Last Access The time of last access is a caching ​​ algorithm ​​ that enables ​​ cache ​​ entries to be ordered by their ​​ access times.

Servers 40

Servers Cache Database Media 40