Message-Id: <10624.117318@fatcity.com> From: VIVEK_SHARMA Date: Tue, 19 Sep 2000 13:40:32 +0530 Subject: RE: log file sync and processes Excessicely High log file sync - seemed a media problem with us - We did a RE-Initialisation of our RAID Box , Created the Filesystems AFRESH , put Back the Data RESULT - log file syncs Disappeared > -----Original Message----- > From: Steve Adams [SMTP:steve.adams@ixora.com.au] > Sent: Saturday, September 16, 2000 2:46 AM > To: Multiple recipients of list ORACLE-L > Subject: RE: log file sync and processes > > Hi Russell, > > The only negative effect of a high processes value that I am aware of is > that > certain things that query the session specific data structures (such as > autotrace) take longer. I am not aware of any impact on 'log file syncs'. > I > could believe that it might make them take longer, but short of timeouts I > doubt > that it would cause more waits. If you try it, I'll be interested to know > whether it has any effect. > > @ Regards, > @ Steve Adams > @ http://www.ixora.com.au/ > @ http://www.christianity.net.au/ > @ > @ Going to OpenWorld? > @ Catch the Ixora performance tuning seminar too! > @ See http://www.ixora.com.au/seminars/ for details. > > > -----Original Message----- > Sent: Saturday, 16 September 2000 1:31 > To: Multiple recipients of list ORACLE-L > > > Hi, > During a conversion we are getting very high numbers of log file sync. > We > can't really do much with the striping and I am investigating some other > options. One of the recommendations I have run across indicates if that > this can occur if processes is unnecessarily high. In our case processes > is > set to 1000 and the shadow processes are running around 90. I'm getting > some push back from others who do not accept that a high number of > processes > can have this effect. Anyone know of corroborating information from > experts > or documentation? I don't see anything confirming it in Metalink or on > Steve Adams' site. > > Regards, > Russ Brooks > > -- > Author: Russell Brooks > INET: russell.brooks@amctechnology.com > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California -- Public Internet access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: ListGuru@fatcity.com (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). > > -- > Author: Steve Adams > INET: steve.adams@ixora.com.au > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California -- Public Internet access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: ListGuru@fatcity.com (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