Re: Big 7.1 open items

Bruce Momjian <pgman@candle.pha.pa.us>

From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Jan Wieck <JanWieck@Yahoo.com>, Thomas Lockhart <lockhart@alumni.caltech.edu>, Hiroshi Inoue <Inoue@tpf.co.jp>, Bruce Momjian <maillist@candle.pha.pa.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>, "Ross J. Reedstrom" <reedstrm@rice.edu>
Date: 2000-06-19T00:24:25Z
Lists: pgsql-hackers
> JanWieck@t-online.de (Jan Wieck) writes:
> > Thomas Lockhart wrote:
> >> Those who live in HP houses should not throw stones :))
> 
> >     Huh?  Up to HPUX-9 they used to have BSD-FFS - even if it was
> >     a 4.2 BSD one - no?
> 
> Yeah, the standard HPUX filesystem is still BSD ... and it still runs
> rings around Linux extfs2 in my experience.  (I've been informed that
> Linux has better filesystems than extfs2, but that seems to be what
> the average Linux user is running.)  I have a realtime data collection
> program that usually wants to write several thousand small files during
> shutdown.  The shutdown typically takes about 3 minutes on an HP 715/75,
> upwards of 10 minutes on a Linux box with nominally-faster hardware.
> 
> BTW, HP is trying to sell people on using a new journaling filesystem
> that they claim outperforms BSD, but my few experiments with it
> haven't encouraged me to pursue it.

You should really try the BSD4.4 FFS with soft updates.  It re-orders
disk flushes to greatly improve performance.  It really is great.  


-- 
  Bruce Momjian                        |  http://www.op.net/~candle
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026