Re: Questions about values of memory in onconfig

En Diego Morales va escriure el dia 9 Sep 99, a les 16:07: > > > > > > Hi all again. > > I'm working with a 7.31 UC2 with HP-UX 10.20 > > I'm tunning the memory values of onconfig, exactly SHMVIRTSIZE and > SHMADD. > > We have recently change to this version of Informix and who installed > us this version changed the values of SHMVIRTSIZE and SHMADD (they was > set to 240000 and 30000). He said that they was too high for us. > > Now I have SHMVIRTSIZE set to 200000 and SHMADD set to 8000 > (its original value). Since Monday I changed SHMVIRTSIZE from 140000 > to 200000 (a lot of segments were created daily). I suppose that a big > number of new segments is very bad for the performance... is it right? It's so good to have a small number of segments (I try to have 1 - SHMVIRTSIZE- and exceptionally 1 plus -SHMADD- (my SHMADD = 50% of SHMVIRTSIZE)). Use "onstat -g seg" to view the segments and try to create a unique segment for all the proces. > > It's better a low value to SHMADD or not? > > Is it possible to get the process that caught the additional segments? > Perhaps the process that caught the segment didn't finish ok or > perhaps Informix doesn't free the additional segments when he doesn't > need them. If I can get the process perhaps I can free the segment > but, is it possible > to > free a segment with blkused <> 1? > I know that 'onmode -F' free the segments with blkused = 1. Use "onstat -g ses" (without sid) and you can see a sumary for all the users memory allocated and memory used. To free a segment use "onmode -F". IDS don't deallocate unused segments :-(( but reuses the allocated segments next time. > > Thanks in advance !!! > > DJMoralesM > dmorales@giro.es > > Bona sort. --------------------------------------- Isidre PONS ROCA BASE - Gesti' d'Ingressos Locals (Diputacio de Tarragona) Servei de Sistemes de Informacio Av President Lluis Companys 12-C 43005 - Tarragona SPAIN Tel # +34 977 236731 Fax # +34 977 227302 http://www.altanet.org ipons@dtgna.altanet.org ---------------------------------------