Thanks chris for your thoughts. > This is obviously a "big" question whose answer likely take months to > really determine. But we can get started :)
I am aware the question is too broad but better to ask than to be silent. Will try to go for increasing maxKeepAliveRequests first and see where that moves us. > I'm curious: did you experience any significant change in performing > and/or CPU usage when switching to Virtual Threads? The load tests we performed showed us virtual threads overperform platform threads for the constrained environment we have, where only one Tomcat instance is used, and a shared machine with other processes. We tried increasing the platform thread pool as much as we could, but there was a limit where no more threads helped at all, the context switch was eating the performance. We have seen 5000 requests/second with good latency for getting a small file from memory. When the load is high, virtual threads start to eat a lot of CPU, but, we notice that the limit for that is higher than for platform threads, where the CPU starts to increase pretty soon alongside memory. We have been using virtual threads from JDK 19 as a preview on production code and no issues at all. -- Daniel Andrés Pelaez López --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
