Hi Scott: On Wed, Feb 17, 2010 at 11:47 AM, Scott Dworkis <[email protected]> wrote:
> a clue that you are bumping into io cache is also a lot of dropouts in > metrics graphs, a lot of cpu io-wait time, and a consistent showing of > pdflush ranked high in bin/top. i suspect there are some risks with this > cache tuning, so use with caution. Most users run into this I/O related issue at around 30k metrics. I am curious what the resource usage of your gmetad is at 150k metrics after your tweaks. User usually work around the issue by: 1) Putting the rrd files in tmpfs 2) Using rrdcached Would be interested to see where the next scalability wall is. Cheers, Bernard ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
