lkml.org 
[lkml]   [2006]   [Nov]   [4]   [last100]   RSS Feed
Views: [more markup]   [less markup]   [headers]   [forward]  
 
Messages in this thread
/
DateSat, 4 Nov 2006 11:53:02 +0100
FromJörn Engel <>
SubjectRe: New filesystem for Linux
On Fri, 3 November 2006 11:00:58 -0800, dean gaudet wrote:
> 
> it seems to me that you only need to be able to represent a range of the 
> most recent 65536 crashes... and could have an online process which goes 
> about "refreshing" old objects to move them forward to the most recent 
> crash state.  as long as you know the minimm on-disk crash count you can 
> use it as an offset.

You really don't want to go down that path.  Doubling the storage size
will double the work necessary to move old objects - hard to imagine a
design that scales worse.

CPU schedulers, btw, take this approach.  But they cheat, as they know
the maximum lifetime of their objects (in-flight instructions, rename
registers,...) is bounded to n.  Old objects are refreshed for free.
http://www.chip-architect.com/news/2003_09_21_Detailed_Architecture_of_AMDs_64bit_Core.html

Jörn

-- 
A defeated army first battles and then seeks victory.
-- Sun Tzu
-
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: 2006-11-04 09:55    [W:0.587 / U:0.380 seconds]
©2003-2008 Jasper Spaans