Messages in this thread | | | Date | Fri, 22 Jan 1999 17:31:53 -0600 | From | Jason Froebe <> | Subject | Re: Should raw I/O be added to the kernel? |
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Hi,
"Stephen C. Tweedie" wrote:
> Interesting to hear you say this, since that is _precisely_ what you get > if you are running a large DB like Oracle or Informix on raw devices. > All raw devices are _necessarily_ synchronous, and yet these devices are > suggested as a means of improving performance.
NO! Not to improve performance but to improve recoverability of databases. One will get 2 - 3 times better performance on a filesystem but we can't guarantee that the write has been completed.
Jason begin:vcard n:Froebe;Jason tel;fax:773-864-7288 tel;work:1-800-8SYBASE x-mozilla-html:TRUE url:http://www.sybase.com org:Sybase, Inc.;Technical Support adr:;;8755 W. Higgins Road Suite 1000 ;Chicago;IL;60631;USA version:2.1 email;internet:jfroebe@sybase.com title:Technical Support Engineer x-mozilla-cpt:;20256 fn:Jason Froebe end:vcard
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