Re: Cooked files and mmap

Posted in 1997

Pablo Sanchez — 3 Jun 1997 17:17:48 GMT — source: Informix-list mailing list archive (1991-1998)

In article <5n1if2$8rm@cssun.mathcs.emory.edu>, Denham.M@amstr.com writes: > > Are there new features at the O/S level (such as journalling?) that > ensure that this type of scenario does not become a problem with > cooked files? > On SGI (please note, tech marketing hat is now on), you can do directed I/O. The ability to do directed I/O allows you to have user level async I/O along with block access and having the data on disk map directly to user space (rather than going to kernel buffers and bcopy'ing to user space). -- Pablo Sanchez | wk: 415.933.3812| pg: 800.930.5635 -or- pablo_p@pager.sgi.com --------------+-----------------+-------------------------------------------- pablo@sgi.com ... when mailing me, place "not spam" in the Subject