Re: Raw vs. cooked
Posted in 1999
Topics: Performance & Tuning, Platform-Specific Issues
The Sun guy is talking spheriods, talk to the techie's at Sun and they = will state that when you are comparing like for like then raw is faster. = Whether they'll do this in public as another matter:-)) >>> "Art S. Kagel" <kagel@bloomberg.net> 05/11/99 06:58pm >>> Tom Smith wrote: >=20 > Let's put this issue to rest -- or maybe not: >=20 > Is IDS's performance better using raw diskspace or the Unix filesystems, > aka "cooked files?" A Sun field sales/system engineer recently told me > that Sun's filesystems are so sophisticated now that the performance is > identical. Another system developer told me that he had benchmarked the > two, and had seen a slight disadvantage to using Informix on Solaris > with raw space. However, he said a different Unix flavor had abysmal > cooked file performance compared to raw. >=20 > What have others found? Does Informix have any published (recent) > benchmarks that address this question? I have not done any formal testing in a few years but it always comes=20 up the same: RAW is 15-25% faster than COOKED on every OS I have ever=20 tried no matter how "sophisticated" the FS is. Let Sun show us the=20 benchmarks, fully documented. Art S. Kagel ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************