On 24/06/2016 20:01, therealnewo...@gmail.com wrote: > On Fri, Jun 24, 2016 at 2:07 PM, Mark Thomas <ma...@apache.org> wrote: >> On 24/06/2016 18:41, Nate Clark wrote: >>> On Fri, Jun 24, 2016 at 1:37 PM, Nate Clark <n...@neworld.us> wrote: >>>> On Fri, Jun 24, 2016 at 1:27 PM, Mark Thomas <ma...@apache.org> wrote: >>>>> On 24/06/2016 18:25, Mark Thomas wrote: >>>>>> >>>>>> Can you provide the settings you are using for the Executor as well >>>>>> please? >>>> >>>> <Executor name="defaultThreadPool" namePrefix="catalina-exec-" >>>> maxThreads="500" minSpareThreads="4"/> >>>> >>>>> >>>>> And how long do the initial 5,000,000 4k requests take to process? >>>>> >>>> >>>> 40 minutes. >>>> >>> Not sure this matters but I just double checked and there are actually >>> 400 threads in total doing the 4k PUTs. Two clients each doing 200 >>> threads. the 100MB test is 24 threads total 12 per client machine. >>> >>> Sorry for misinformation earlier. >> >> No problem. Thanks for the information. One last question (for now). How >> many processors / cores / threads does the server support? I'm trying to >> get a handle on what the concurrency looks like. >> > > The machine has two physical chips each with 6 cores and > hyper-threading enabled, so 24 cores exposed to the OS.
Thanks. <snip/> > If it matters the system also has 256GB of memory. I don't think RAM is playing a role here but it is still good to know. In terms of next steps, I want to see if I can come up with a theory that matches what you are observing. From that we can then assess whether the proposed patch can be improved. Apologies for the drip-feeding of questions. As I learn a bit more, a few more questions come to mind. I'm wondering if this is a problem that builds up over time. If I understood your previous posts correctly, running the big tests immediately gave ~700MB/s whereas running the small tests then the big tests resulting in ~350MB/s during the big tests. Are you able to experiment with this a little bit? For example, if you do big tests, 1M (~20%) small tests, big tests, 1M small tests, big tests etc. What is the data rate for the big tests after 0, 1M, 2M, 3M, 4M and 5M little tests. What I am trying to pin down is how quickly does this problem build up. Also, do you see any failed requests or do they all succeed? Thanks again, Mark > > -nate > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org > For additional commands, e-mail: dev-h...@tomcat.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
