default sort strategy is a duplicate of kernel scheduling
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
preload (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
Binary package hint: preload
By default preload is sorting the files to be read ahead by using a sort strategy which uses the blocks order.
However, this strategy is I/O intensive and this adds an duplicate sort to the kernel I/O requests ordering.
Even if we can configure an other strategy into the /etc/preload.conf file, I think that preload should give the hand to the linux kernel by default for the I/O scheduling.
I think that the below parameters would achieve a better performance :
- parallel I/O requests (by default)
- kernel I/O scheduling (by default "--iosched idle" in /etc/default/
- no sort (not by default)
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: preload 0.6.4-1
ProcVersionSign
Uname: Linux 2.6.32-22-generic i686
Architecture: i386
Date: Sun May 30 14:24:23 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcEnviron:
LANG=fr_FR.utf8
SHELL=/bin/bash
SourcePackage: preload
Closing that outdated report as EOL has been reached long time ago