Hi, It's like virtualization. If you have many small topologies that need few CPU resources, you can add more processes per CPU. It you have big topologies that need a lot of CPU resources, you need to decrease number of process per cpu. I advise to start from 1.2-1.5 process per CPU and compare with 1 process per cpu and 2 process per cpu.
2016-04-12 7:44 GMT+03:00 Sai Dilip Reddy Kiralam < dkira...@aadhya-analytics.com>: > Hi guys, > > Thank you for your suggestions but I'm not clear with the > explanation.andrey please let me know one thing '*what do you mean by > "depend by code"* ' ? Depend on code in the sense does it depends on > number of bolts and spouts I'm using ?if yes can you give me a direct > answer using an example having number of bolts and spouts.How many > supervisor.slots should I consider in 16 core cpu?Answer to my question > Still remains as a lock. > machine. > > > > *Best regards,* > > *K.Sai Dilip Reddy.* > > On Mon, Apr 11, 2016 at 9:29 PM, Andrey Dudin <doodin...@gmail.com> wrote: > >> Hi Nikos. >> >> Yes, you are right, but sometimes java application show better >> performance under high load when used 1.2-1.5 process per core. Thicker >> loading is not always bad. >> >> 2016-04-11 18:23 GMT+03:00 Nikos R. Katsipoulakis <nick.kat...@gmail.com> >> : >> >>> Hello both, >>> >>> Andrey, I believe its better to use one executor thread per core and >>> only one worker process per socket. This way, the executor threads >>> communicate with each other using LMAX Disruptor queues (therefore less >>> latency) and Netty is used only when a message needs to be sent to another >>> executor thread on a different machine. >>> >>> Also, if you need a lot of memory, you can start your worker process >>> with as much Heap memory you want. >>> >>> Cheers, >>> Nikos >>> >>> On Mon, Apr 11, 2016 at 9:15 AM, Andrey Dudin <doodin...@gmail.com> >>> wrote: >>> >>>> Hi, >>>> It's depend by code. Usually starting from 1-1,5 process per core. >>>> >>>> 2016-04-11 16:10 GMT+03:00 Sai Dilip Reddy Kiralam < >>>> dkira...@aadhya-analytics.com>: >>>> >>>>> >>>>> Hi All, >>>>> >>>>> I'm using a 16 core cpu as my supervisor node.My doubt is How many >>>>> supervisor.slots should I set in supervisor storm.yaml conf file ?Is there >>>>> any formula to set no of slots based on the cpu core. >>>>> >>>>> Thanks in Advance >>>>> >>>>> >>>>> *Best regards,* >>>>> >>>>> *K.Sai Dilip Reddy.* >>>>> >>>> >>>> >>>> >>>> -- >>>> С уважением Дудин Андрей >>>> >>> >>> >>> >>> -- >>> Nikos R. Katsipoulakis, >>> Department of Computer Science >>> University of Pittsburgh >>> >> >> >> >> -- >> С уважением Дудин Андрей >> > > -- С уважением Дудин Андрей
