thanks for replying , really i'm apperciate your help , so cpu usage is important to measure performance ? i need to know how can i use all numbers in storm ui to evaluate topology means like this
Topology A Topology B i see execute latency , capcaity and process latency from these numbers how can i detect performance high is better or what ? Thanks for your time On Wed, Mar 9, 2016 at 6:51 AM, Cody Innowhere <[email protected]> wrote: > @sam, > CPU usage is very close to your application logic, i.e., it depends on > whether your topology is CPU-intensive or not. > It may be also related to the throughput of your topologies. So it's really > hard to tell if a certain cpu usage like .5 is good or bad. > > In your case of comparing two topologies, let's say topology A and B, I can > give some rough hints: > 1. If A's CPU usage is higher than B with higher throughput, I'd say > possibly it's worth higher CPU usage to gain extra throughput; > 2. If A's throughput and B's throughput are almost the same, I'd prefer the > topology which has lower CPU usage. > > Hope this helps. > > On Wed, Mar 9, 2016 at 12:28 PM, sam mohel <[email protected]> wrote: > > > What is the importance of CPU utilization after submitted topology as I > > need to compare between two topologies which is better in performance > > > > And numbers which close to .5 is better or not ? > > How can I know ? > > Thanks > > >
