Tobias Oetiker wrote: > > Today Michael Heiming wrote: > > | > | Clifton Royston wrote: > | > > | > On Sat, Aug 04, 2001 at 12:53:17PM +0200, Michael Heiming wrote: > | > > > | > > Hello everyone, > | > > > | > > I'm currently developing a RRD/MRTG solution, my problem is, running > | > > MRTG/RRD from cron, that with about 20 machines at the moment and > | > > around 20 .rrd files per target, the load gets pretty high, while > | > > opening all those small files. > | > > | > Try switching to a smaller number of files per target with multiple > | > DSes per RRD file, this may improve performance. (No guarantee, but I > | > think it will substantially reduce the number of disk writes and of > | > course directory accesses.) > | > > > my tests show, that given your machine has about 250 MB ram you > should be able to run rrdtool with up to 1000 rrd files updated > every second ... > > it is vital though that you are using LOCAL disk ... rrdtool does > not work well across the network ... you will go down to maybe 20 > updates per second ... > > chers > tobi > > -- > ______ __ _ > /_ __/_ / / (_) Oetiker, ETZ J97, ETH, 8092 Zurich, Switzerland > / // _ \/ _ \/ / phoneto:+41(0)1-632-5286 faxto:+41(0)1-632-1517 > /_/ \.__/_.__/_/ mailto:[EMAIL PROTECTED] http://people.ee.ethz.ch/~oetiker
Thx...for all your suggestions, I found my bottleneck today...:-) I was just starting to much from cron, now I have only one script per OS, that runs from cron, that itself calls all mtrg.conf files and updates the .rrd. Load is now below 1.00 (before > 15), with about 400 .rrd files, so there should be no problems with even 10 x the .rrd files. I'll switch to hw RAID1/U-160 SCSI anyway. Thanks again Michael Heiming -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
