Chris On Thu, 2015-05-07 at 11:56 -0400, Chris Hunter wrote: > Hi Carmelo, > > What I found is once the local vfs cache is full, robinhood GET_INFO_FS > speed drops. You can monitor (via /proc/meminfo) buffer, cached & slab > memory usage when starting robinhood, you will see these values reach > threshold after a time. Once this state is reached, parameters > lru_max_age and vfs_cache_pressure are important.
I see your point now. I increased vfs_cache_pressure to 125 and I monitoring buffer, cached & slab as you suggested. I will check on Monday and let you know. > You can also "flush" lustre cached ldlm locks by echoing "clear" to > lru_size parameter. I scheduled this every hour in cron. In addition on https://www.kernel.org/doc/Documentation/sysctl/vm.txt I'm reading about /proc/sys/vm/drop_caches. Do you think it could help dropping slab objects and pagecache? (echo 3 > /proc/sys/vm/drop_caches). Carmelo ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ robinhood-support mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/robinhood-support
