Martin, Below is a snippet from an e-mail my hardware sysprog sent after I had them turn on thin interrupts on our EC12 test/dev partitions CF engines. These CF engines are shared across 2 CF LPARs and I think you will like the results we are seeing.
The results have been impressive. Looking at just one of the structures, DDV0_LOCK1, prior to the change, in an 8 hour interval during prime shift, we see a 6.5 microsecond response time for 1221K SYNC requests and a 288.4 microsecond response time for 6073 ASYNC requests. After the change we see for DDV0_LOCK1 a 4.5 microsecond response time for 2104K SYNC requests and NO ASYNC requests, meaning that all requests were satisfied synchronously. Now for the negative, which really is not a negative, before the change, over the prime shift the DEV CF processor utilization was 0.6% busy, after the change its now 35% busy. With the improved performance that we are seeing in response times for our DEV environments I think it's well worth it. Gene Pate CSX Technology Enterprise Architecture 550 Water Street - 741GG Jacksonville, FL 32202 (904) 633-5158 (o) (904) 662-5103 (c) (904) 245-4058 (f) gene_p...@csx.com<mailto:gene_p...@csx.com> www.csx.com<http://www.csx.com/> This email transmission and any accompanying attachments may contain CSX privileged and confidential information intended only for the use of the intended addressee. Any dissemination, distribution, copying or action taken in reliance on the contents of this email by anyone other than the intended recipient is strictly prohibited. If you have received this email in error please immediately delete it and notify sender at the above CSX email address. Sender and CSX accept no liability for any damage caused directly or indirectly by receipt of this email. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
