Hi Alfredo,
> I'm using RRDTool to store data series produces by > flowscan/JKFlow and I hit a performance problem updating many > files. With 256 Mb RAM caching works OK up to about 2000 RRDs, > but after that # performance fall suddenly. About 180Mb of RAM yes rrdtool update performance is 'cache bound' ... I don't think MMAP will help with this ... MMAP will make updating faster but the difference is nowhere as large as what the cache does for you ... add more memory and you can update more rrd files fast ... cheers tobi -- ______ __ _ /_ __/_ / / (_) Oetiker @ ISG.EE, ETL F24.2, ETH, CH-8092 Zurich / // _ \/ _ \/ / System Manager, Time Lord, Coder, Designer, Coach /_/ \.__/_.__/_/ http://people.ee.ethz.ch/oetiker +41(0)44-632-5286 -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://lists.ee.ethz.ch/rrd-users WebAdmin http://lists.ee.ethz.ch/lsg2.cgi
