Re: defrag on linux system

From: Jonathan Bartlett (johnnyb_at_eskimo.com)
Date: 08/24/05 

Date: Wed, 24 Aug 2005 09:05:31 -0400

> Not exactly on the topic, but fragmentation is a huge problem to me.
> I have striping RAID 2*120 GB and would like to capture real time
> uncompressed video on it, 768x576x25x1.5 = 15.8 MB/sec.

Then you should use a filesystem geared towards your needs. ext3 is for
normal UNIX use. If you want large streaming access, you should use
XFS, developed by SGI for just that purpose.

Jon

Relevant Pages

  • Re: Defragging drive possible in IRIX?
    ... job to defrag the drives at night, I don't know if it still is a default ... An XFS filesystem will only fragment if you are both low on RAM and low on disk ... temporary files (the worst for fragmentation), ...
    (comp.sys.sgi.admin)
  • Re: Do Linux hard drives need to be defragmented? Thanx in advance
    ... sequential accesses are much more sensitive to fragmentation ... "fragmentation-related" impact on boot time. ... > I defrag about once a quarter and use my computer almost constantly. ... Note that IRIX never had an XFS ...
    (comp.os.linux.hardware)
  • Re: Ext3 vs NTFS performance
    ... [bad fragmentation from a funky write one byte every 128k system] ... This only becomes a problem if the system has enough pages dirty to ... then set the extent allocation size hint on the ... XFS inode to 128k or 256k to set the minimum all ocation size for the ...
    (Linux-Kernel)
  • Re: defrag on linux system
    ... >>a system on which ONE process is running, which is not the modern case. ... > Not exactly on the topic, but fragmentation is a huge problem to me. ... > I have striping RAID 2*120 GB and would like to capture real time ... I've seen performance problems with reiserfs on hardware RAID (Mylex ...
    (comp.os.linux.development.system)
  • Re: XFS strangeness, xfs_db out of memory
    ... As a result of fine tuning the output I ran the ... XFS has probably picked up a malicious value due to the disk error, ... find out the fragmentation), there's definitely something wrong with the HD, ... send the line "unsubscribe linux-kernel" in ...
    (Linux-Kernel)