Re: More info about _db_writer_max_writes
Thaks, log buffer is 2M. I don't see a connection between the the log buffer and this hidden parameter. BTW: this database issues 1500 ios per second. Reply-To: [EMAIL PROTECTED] To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Date: Mon, 06 Oct 2003 08:19:27 -0800 Hans: This parameter limits the max # of buffers can be pending for an AIO operation. Usually you never need to tune (!) this parameter as the default holds good for most platforms. BTW what is the size of the log buffer? You will never have more than 4k pending buffers unless you have a really huge (!) log buffer. KG - Original Message - To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent: Monday, October 06, 2003 9:19 PM Hi All, The current value for my AIX 4.3.3 / 8.1.7.4 instance parameter _db_writer_max_writes is 4096. I've just raised my aio maxreqs to 16384. Would it be beneficial to increase _db_writer_max_writes? HTH, Hans de Git _ MSN Zoeken, voor duidelijke zoekresultaten! http://search.msn.nl -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Hans de Git INET: [EMAIL PROTECTED] Fat City Network Services-- 858-538-5051 http://www.fatcity.com San Diego, California-- Mailing list and web hosting services - To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: K Gopalakrishnan INET: [EMAIL PROTECTED] Fat City Network Services-- 858-538-5051 http://www.fatcity.com San Diego, California-- Mailing list and web hosting services - To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). _ MSN Zoeken, voor duidelijke zoekresultaten! http://search.msn.nl -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Hans de Git INET: [EMAIL PROTECTED] Fat City Network Services-- 858-538-5051 http://www.fatcity.com San Diego, California-- Mailing list and web hosting services - To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
More info about _db_writer_max_writes
Hi All, The current value for my AIX 4.3.3 / 8.1.7.4 instance parameter _db_writer_max_writes is 4096. I've just raised my aio maxreqs to 16384. Would it be beneficial to increase _db_writer_max_writes? HTH, Hans de Git _ MSN Zoeken, voor duidelijke zoekresultaten! http://search.msn.nl -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Hans de Git INET: [EMAIL PROTECTED] Fat City Network Services-- 858-538-5051 http://www.fatcity.com San Diego, California-- Mailing list and web hosting services - To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: More info about _db_writer_max_writes
Hans: This parameter limits the max # of buffers can be pending for an AIO operation. Usually you never need to tune (!) this parameter as the default holds good for most platforms. BTW what is the size of the log buffer? You will never have more than 4k pending buffers unless you have a really huge (!) log buffer. KG - Original Message - To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent: Monday, October 06, 2003 9:19 PM Hi All, The current value for my AIX 4.3.3 / 8.1.7.4 instance parameter _db_writer_max_writes is 4096. I've just raised my aio maxreqs to 16384. Would it be beneficial to increase _db_writer_max_writes? HTH, Hans de Git _ MSN Zoeken, voor duidelijke zoekresultaten! http://search.msn.nl -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Hans de Git INET: [EMAIL PROTECTED] Fat City Network Services-- 858-538-5051 http://www.fatcity.com San Diego, California-- Mailing list and web hosting services - To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: K Gopalakrishnan INET: [EMAIL PROTECTED] Fat City Network Services-- 858-538-5051 http://www.fatcity.com San Diego, California-- Mailing list and web hosting services - To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).