Speeding up slow disks with SSD caching
Conclusions
An all-Flash solution is the fastest, but it is also the most expensive solution. Caches that significantly accelerate a large volume on the hard disk using an SSD are cheaper. This approach will work best where an application produces stable access patterns. The cache can contribute little with completely random, chaotic access that never repeats. Often the cache needs time to reach a stable state. If you work with Writeback, you need protection against the risk of data loss, so use a battery-backed cache.
Infos
- Flashcache: https://github.com/facebook/flashcache/blob/master/doc/flashcache-doc.txt
- Enhance IO: https://github.com/stec-inc/EnhanceIO
- dm-cache: https://github.com/mingzhao/dm-cache
- Bootchart: http://www.bootchart.org
- FIO: http://freecode.com/projects/fio
- Sysbench: https://github.com/akopytov/sysbench
« Previous 1 2
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
Direct Download
Read full article as PDF:
Price $2.95
News
-
Mozilla VPN Now Available for Linux
The promised subscription-based VPN service from Mozilla is now available for the Linux platform.
-
Wayland and New App Menu Coming to KDE
The 2021 roadmap for the KDE desktop environment includes some exciting features and improvements.
-
Deepin 20.1 has Arrived
Debian-based Deepin 20.1 has been released with some interesting new features.
-
CloudLinux Commits Over 1 Million Dollars to CentOS Replacement
An open source, drop-in replacement for CentOS is on its way.
-
Linux Mint 20.1 Beta has Been Released
The first beta of Linux Mint, Ulyssa, is now available for downloading.
-
Manjaro Linux 20.2 has Been Unleashed
The latest iteration of Manjaro Linux has been released with a few interesting new features.
-
Patreon Project Looks to Bring Linux to Apple Silicon
Developer Hector Martin has created a patreon page to fund his work on developing a port of Linux for Apple Silicon Macs.
-
A New Chrome OS-Like Ubuntu Remix is Now Available
Ubuntu Web looks to be your Chrome OS alternative.
-
System76 Refreshes the Galago Pro Laptop
Linux hardware maker has revamped one of their most popular laptops.
-
Dell Will Soon Enable Privacy Controls for Linux Hardware
Dell makes it possible for Linux users to disable webcams and microphones.