On Tue, Oct 6, 2020 at 12:47 PM Mark Thomas <ma...@apache.org> wrote:
> On 06/10/2020 10:35, Martin Grigorov wrote: > > On Tue, Oct 6, 2020 at 12:15 PM Martin Grigorov <mgrigo...@apache.org> > > wrote: > > > >> > >> > >> On Tue, Oct 6, 2020 at 12:06 PM Mark Thomas <ma...@apache.org> wrote: > >> > >>> On 06/10/2020 07:30, Martin Grigorov wrote: > >>>> Hi, > >>>> > >>>> I face an issue with the NIO2 protocol. > >>>> When I increase the request rate to more than 500 requests per second > it > >>>> starts failing with: > >>> > >>> I'm unable to reproduce this with a 10.0.x build requesting a simple > >>> text file from the ROOT web app using NIO2 and Java 1.8.0_265. > >>> > >>> I see around 15k req/s and no failures. > >>> > >> > >> I use latest 9.0.x. > >> Let me try with non-embedded Tomcat! > >> > > > > Same build of Tomcat started with ./bin/startup.sh has no such problems! > > It seems > > > https://github.com/martin-g/http2-server-perf-tests/blob/master/java/tomcat/src/main/java/info/mgsolutions/tomcat/TomcatEmbedded.java > > either misses something or does something more than what conf/server.xml > > does. > > I've tried to minify server.xml by removing all listeners, valves and > JNDI > > related stuff but it still works fine. > > maxThreads="8" setting? That looks very low to me. > Yep! This was the reason! Thanks! The EOFs happen with standalone Tomcat too when maxThreads is 8. I've reduced it because otherwise the throughput of NIO is lower. Async Profiler (perf) says that there are many context switches. > > Mark > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
