Thanks. I have been looking around for a doc like this and I came across the swapiness problem. I would like to find an expert on this topic so I can pick their brain :-)
On Sun, Sep 28, 2008 at 11:50 AM, Vanco Backup <[EMAIL PROTECTED]> wrote: > On Sat, Sep 27, 2008 at 8:43 PM, Mag Gam <[EMAIL PROTECTED]> wrote: >> Hello: >> >> We have implemented RHEL 5.2.1 at our university. We use the systems >> which are 8 cores with 64GB of memory. We are on a 10g network. These >> servers are mostly for computational purposes. That essentially means >> read data process the data and continue. We don't want to keep the >> data in memory since we read files which are about 250kb but there are >> over 1 million per directory. >> >> Are there any tuning parameter we can set for this type of setup? >> >> I can elaborate if you have any more questions. > > There's some pretty good docs on the interwebs. I believe that some > guys from RH did a pres @ the RH Summit this year - you might stumble > on a copy of that as well.... > > I believe that one param that will help is "swappiness" - default is > 60, tweaking it determines how the kernel deals with swapping pages in > and out of memory. You'd prolly want it set at 100 whereas > application guys want it at 0 so stuff never leaves memory. Not sure > how it might apply to a million tiny files tho... > > _______________________________________________ > rhelv5-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/rhelv5-list > _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
