On Sat, Nov 12, 2011 at 09:45:04AM -0600, Johnny Hughes wrote: > Linux puts things in cache using extra (unused) memory. It is > absolutely normal to have "Free Memory" go down to a fairly small level > and have Buffers and Cache grow. Why does Linux do this? It seems odd to me. > > If you are getting out of memory errors, you can tweek the amount of > memory that they system keeps in reserve using "vm.min_free_kbytes" in > /etc/sysctl.conf I don't find vm.min_free_byes in sysctl.conf. It isn't mentioned in the man pages. Thanks. John > > http://lists.centos.org/pipermail/centos/2006-December/030761.html > > This is a good article that discusses how to adjust this too: > > http://www.dba-oracle.com/t_tuning_linux_kernel_2_6_oracle.htm > > As far as what version of CentOS you have ... you can figure that out with: > > cat /etc/redhat-release > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities