• To: Peter Hunsberger <peter.hunsberger@g...>
• Subject: Re: Re: Where does the "nothing left but toolkits" myth come from?
• From: Wolfgang Hoschek <whoschek@l...>
• Date: Wed, 9 Feb 2005 14:32:00 -0800
• Cc: "Bullard, Claude L (Len)" <len.bullard@i...>, Rick Marshall <rjm@z...>, XML Developers List <xml-dev@l...>, Ronald Bourret <rpbourret@r...>, Bob Foster <bob@o...>
• In-reply-to: <cc159a4a0502091422434ef9d7@m...>
• References: <15725CF6AFE2F34DB8A5B4770B7334EE07206BD6@h...> <420A6947.6020706@o...> <a0915d1e4e0936ee903d32a226abafdd@l...> <420A7DFE.7050404@z...> <bddcd9cb39cabe039be216bc9650b418@l...> <cc159a4a0502091422434ef9d7@m...>

>
> As an experiment I tried turning on Windows disk compression, the
> rational being smaller amounts of data back and forth from disk would
> result in relatively faster IO at the expense of CPU which I appeared
> ot have excessive amounts of.  No such luck; my benchmark scratch
> compile (about 880 Java classes) went from 22 seconds to about 34
> seconds.  By comparison, a single 2.8 Ghz CPU system with 10K RPM
> disks configured  RAID 0 can do the compile in around 10 seconds.
>

As an aside, strictly sequential I/O with medium to large direct block 
transfers is by far the fastest I/O. Anything that disturbs the 
"sequential, large batch" nature causes massive degradations, which is 
why even a DBMS needs large main memory buffer pools to work well.

• References:
  • RE: Re: Where does the "nothing left but toolkits" myth come from?
    • From: "Bullard, Claude L (Len)" <len.bullard@i...>
  • Re: Re: Where does the "nothing left but toolkits" myth come from?
    • From: Bob Foster <bob@o...>
  • Re: Re: Where does the "nothing left but toolkits" myth come from?
    • From: Wolfgang Hoschek <whoschek@l...>
  • Re: Re: Where does the "nothing left but toolkits" mythcome from?
    • From: Rick Marshall <rjm@z...>
  • Re: Re: Where does the "nothing left but toolkits" myth come from?
    • From: Wolfgang Hoschek <whoschek@l...>
  • Re: Re: Where does the "nothing left but toolkits" myth come from?
    • From: Peter Hunsberger <peter.hunsberger@g...>

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