On Sat, Mar 02, 2002 at 10:59:07PM +1100, Rachel Polanskis wrote: > > What most people don't know is that it's actually possible to enable caching > > of metadata updates in Solaris, which improves performance in those > > edge-cases by several orders of magnitude. It's also not at all recommended > > due to the filesystem corruption issue... > > That's the directio option, isn't it? Solaris also has "noatime" > and dfratime (defer atime) which speeds up writes a bit. Don't > use it for anything you care about though!
Nope. DirectIO is exactly the opposite - it disabled caching of everything, and should only be used in very limited situations (like some database devices on filesystems). The feature I'm refering to is "DIO" or DelayedIO. A websearch for "fastfs capser" will find all the details you need. But I think we're a little off topic... Scott -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
