On Tue, Jan 21, 2003 at 23:48:38 +0100, Henning Meier-Geinitz wrote: > I quick test shows that opening non-existing devices with devfs is > just extremely slow. The same goes for stat() instead of open(). > 1000 stats take 11 seconds if the file does not exist and 0.01 > seconds if it exists :-(((
devfs has a special handling for file lookup - it catches attempts to open non-existent files and passes the requests to devfsd, which then can load the required module. Because of this requirement, opening a non-existent device with devfs always will be slow.
