jim@syteke.be (Jim Sanchez) (12/13/89)
I received and installed the new version of dbz the other day and
noticed that you can use an option called INCORE and it will keep the
index file in memory. To use it requires that the INCORE symbol be
defined and "dbmclose be called". Now the first is a piece of cake
but I do not want to hack up news and have the next patch blow up in
my face. Has anyone done this yet and if so what should I do to make
it play this way?
Thanks
--
Jim Sanchez {sun,hplabs}!sytek!syteke!jim OR
Hughes LAN Systems, Brussels uunet!prlb2!sunbim!syteke!jimgary@dgcad.SV.DG.COM (Gary Bridgewater) (12/17/89)
In article <628@syteke.be> jim@syteke.UUCP (Jim Sanchez) writes: >I received and installed the new version of dbz the other day and >noticed that you can use an option called INCORE and it will keep the >index file in memory. To use it requires that the INCORE symbol be >defined and "dbmclose be called". Now the first is a piece of cake >but I do not want to hack up news and have the next patch blow up in >my face. Has anyone done this yet and if so what should I do to make >it play this way? You just want to do it in expire where there is a benefit. Everything else just processes an article at a time. I don't have diffs but here are the contexts of teh two places I put the dbmclose in. This has been running for 2-3 weeks now (time flies) with nary a burp. I keep 21 days of news and 45 days of history and a vanilla expire takes ~60 minutes on a 1 MIP system. Before this, 17 days of news and 30 days of history took ~3 hours. These mods are not scientific - I just looked for every place that expire seemed to exit normally and found these two. Abnormal exits don't much matter as I wouldn't want the output anyway. The #ifdef's are, of course, optional... To expire.c, patch level 17 - first mod: -- remember(lb, fpos); } #ifdef INCORE dbmclose(); #endif } remember(article, fileoff) -- second mod - at the end of the file -- } #ifdef DBM #ifdef INCORE dbmclose(); #endif #endif rmlock(); exit(i); } -- Gary Bridgewater, Data General Corporation, Sunnyvale California gary@proa.sv.dg.com or {amdahl,aeras,amdcad}!dgcad.SV.DG.COM!gary Shaken but not stirred.