Difference between revisions of "LogFS"
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(Created page with "*[http://logfs.org/logfs/ logfs] - LogFS is a scalable flash filesystem. It is aimed to replace JFFS2 for most uses, but focuses more on the large devices. Matt Mackall writes (...") |
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| − | + | LogFS was a raw flash filesystem, intended to replace JFFS2, with a focus | |
| − | JFFS2 | + | on scalability. |
| − | + | In July of 2007, Matt Mackall wrote: | |
LogFS is a filesystem designed to support large volumes on FLASH. It | LogFS is a filesystem designed to support large volumes on FLASH. It | ||
| Line 10: | Line 10: | ||
and it's well on its way to being accepted in the mainline tree. | and it's well on its way to being accepted in the mainline tree. | ||
| − | Scott Preece | + | It was originally written by Joern Engel, but has recently (as of October, 2012) been |
| + | maintained by Prasad Joshi. | ||
| + | |||
| + | It appears to be less-used than other flash filesystems. | ||
| + | |||
| + | == Resources == | ||
| + | * Home page: http://logfs.org/logfs/ | ||
| + | ** Mailing list: http://logfs.org/cgi-bin/mailman/listinfo/logfs | ||
| + | ** NOTE: this site appears down as of October 2012 | ||
| + | * Articles: | ||
| + | ** [http://lwn.net/Articles/234441 LogFS article], LWN.net, May 2007 | ||
| + | ** [http://www.linux.com/articles/114295 LogFS: A new way of thinking about flash filesystems] Linux.com, May 2007 | ||
| + | |||
| + | Scott Preece wrote: | ||
The big win for LogFS (in my limited knowledge of it) is that it stores | The big win for LogFS (in my limited knowledge of it) is that it stores | ||
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mount time. This significantly reduces both startup time and memory | mount time. This significantly reduces both startup time and memory | ||
consumption. This becomes more important as the size of the flash device | consumption. This becomes more important as the size of the flash device | ||
| − | increases | + | increases. |
| − | + | ||
Some newer flash memory, like MLC (multi-level cell), are not well supported. | Some newer flash memory, like MLC (multi-level cell), are not well supported. | ||
| − | |||
| − | |||
Revision as of 18:49, 12 October 2012
LogFS was a raw flash filesystem, intended to replace JFFS2, with a focus on scalability.
In July of 2007, Matt Mackall wrote:
LogFS is a filesystem designed to support large volumes on FLASH. It uses a simple copy-on-write update process to ensure consistency (the "log" in the name is a historical artifact). It's easily the most modern and scalable open-source FLASH filesystem available for Linux and it's well on its way to being accepted in the mainline tree.
It was originally written by Joern Engel, but has recently (as of October, 2012) been maintained by Prasad Joshi.
It appears to be less-used than other flash filesystems.
Resources
- Home page: http://logfs.org/logfs/
- Mailing list: http://logfs.org/cgi-bin/mailman/listinfo/logfs
- NOTE: this site appears down as of October 2012
- Articles:
- LogFS article, LWN.net, May 2007
- LogFS: A new way of thinking about flash filesystems Linux.com, May 2007
Scott Preece wrote:
The big win for LogFS (in my limited knowledge of it) is that it stores its tree structure in the media, rather than building it in memory at mount time. This significantly reduces both startup time and memory consumption. This becomes more important as the size of the flash device increases.
Some newer flash memory, like MLC (multi-level cell), are not well supported.
