lkml.org 
[lkml]   [2002]   [Mar]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: fadvise syscall?
Date
Anton Altaparmakov writes
> Posix or not I still don't see why one would want that. You know what you
> are going to be using a file for at open time and you are not going to be
> changing your mind later. If you can show me a single _real_world_ example
> where one would genuinely want to change from one access pattern to
another
> without closing/reopening a particular file I would agree that fadvise is
a
> good idea but otherwise I think open(2) is the superior approach.
>

Sure, a database manager can change the access pattern on every query. If
there's an index and not too many records are expected to match, it will use
a random pattern, otherwise it will use sequential access.





-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:25    [W:0.158 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site