Re: Coallesce disk I/O (was RE: Interactive responsiveness under heavy I/O load)
Alfred Perlstein <[email protected]>
| Newsgroups | gmane.os.netbsd.devel.performance,gmane.os.netbsd.devel.kernel |
|---|---|
| Message-ID | <[email protected]> |
* Gordon Waidhofer <[email protected]> [040126 15:19] wrote: > > I've only given it a cursory look. I want > to find a way to add coallescing without > tearing-up the whole struct buf subsystem. > It works best if done very near the device > driver. I'm hoping to find a way for the > device drivers to do some sort of "just in time" > coallescing. That way, the struct bufs and > queues would be fine the way they are. > No new data structures need be added or maintained. > It'll be the later part of the year before > I can really wade in. See FreeBSD's vfs_cluster.c. -- - Alfred Perlstein - Research Engineering Development Inc. - email: [email protected] cell: 408-480-4684