Messages in this thread | | | Date | Fri, 7 Aug 1998 13:25:56 +1000 | From | Richard Gooch <> | Subject | Re: DEVFSv50 and /dev/fb? (or /dev/fb/? ???) |
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Stephen Frost writes: > On 6 Aug 1998, H. Peter Anvin wrote: > > > Followup to: <Pine.HPP.3.96.980805205308.17170K-100000@ixion.honeywell.com> > > By author: Shawn Leas <sleas@ixion.honeywell.com> > > In newsgroup: linux.dev.kernel > > > > > > 2) Ease of system maintainence. SYSV style/looking devices tell you > > > EXACTLY where your disks are at a glance, and that is GOOD. Auto device > > > generation is good too... > > > > Auto device generation can be a security hole, and can be done in user > > space without hogging tons of kernel memory. > > > > > 3) It might help performance with some configs. > > > 4) It will NEVER hurt performance, only help it if ANYTHING. > > > > devfs eats lots of kernel memory. That WILL hurt performance. > > > > That's a good reason for not doing it, if it hogs up alot of > kernel memory. I don't have a clue how it's implemented, but I wouldn't > think it would be that bad... Perhaps a clue from how SUN does it, things > in /dev only change when you boot, and it's just stored on a real filesystem, > that would take much less memory I would think.
On a typical system devfs uses a measly few pages.
Regards,
Richard....
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