Sorry no... a java profiler should give you clues. Like how often does it block for IO to be ready and how many pending tasks are in the task queue.
> Am 22.09.2018 um 23:33 schrieb Enrico Olivelli <[email protected]>: > > > > Il sab 22 set 2018, 17:04 'Norman Maurer' via Netty discussions > <[email protected]> ha scritto: >> I think thats just for historic reasons when server typically had not more >> then 8 - 16 cores. In netty 5 we should revisit. How many EventLoops you >> need highly depend on what you do and I would suggest to profiling it. > > > Is there any guide, blog post, tutorial....to have some guide for this > activity? > > It is very difficult, there no recipe.... > A generic java profiler does not help, you can run benchmarks with tipical > application workloads...but it is not easy to track down performance issues > with netty non blocking, async programming model. > Thanks in advance > > Enrico > >> >> Bye >> Norman >> >> >>> On 22. Sep 2018, at 05:44, Piotr Jarzemski <[email protected]> >>> wrote: >>> >>> Hi, >>> >>> What is the reasoning behind using by default twice more EventLoop's than >>> available logical cores? Honestly, I would expect to rather make it equal >>> to number of CPUs, but I guess I miss some insight. >>> >>> >>> Best regards, >>> P. >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Netty discussions" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/netty/9711da9a-bab0-45a0-8193-c06c5e3ba84e%40googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Netty discussions" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/netty/7ED76118-2BA7-401D-98F5-832937CCF7B9%40googlemail.com. >> For more options, visit https://groups.google.com/d/optout. > -- > > -- Enrico Olivelli > > -- > You received this message because you are subscribed to the Google Groups > "Netty discussions" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/netty/CACcefgdcZeJt9fwSQ-PREX5jgcJnRcR56yMUbv_zmcWowRnF5g%40mail.gmail.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Netty discussions" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/netty/547A2CF4-D032-48D8-8CE2-1D2EC32A986C%40googlemail.com. For more options, visit https://groups.google.com/d/optout.
