Hi Anirudh, There is no direct way of reducing the number of worker threads. Btw, I am assuming you are using gRPC version earlier than the latest 1.6.
If so, when you are using a Synchronous grpc server, it by default creates as many "completion queues" as the number of cores (In the latest version of grpc, we only create ONE completion queue). Each completion queue will have "atleast one" worker thread polling for incoming new RPCs (i.e If a worker thread is busy handling an RPC it just received, we create a new worker thread to poll for new RPCs. So clearly, on a server that handles multiple RPCs in parallel, the number of worker threads at any point may be greater than 1). In anycase, you can reduce the "minimum number of workers" to 1 by having the Sync server create only one completion queue the following way: ServerBuilder builder ... builder.SetSyncServerOption(ServerBuilder::SyncServerOption::NUM_CQS, 1) (Here <https://github.com/grpc/grpc/blob/b6ef6e9ff5701d15a352f38a450de2af49d19657/test/cpp/end2end/end2end_test.cc#L265> is an example of a grpc test that sets the number of completion queues to 4) thanks, Sree On Mon, Sep 11, 2017 at 11:35 AM, Anirudh Kasturi <[email protected]> wrote: > Hello folks, > > I noticed that when I bring up my grpc server, it spins up worker threads > using the grpc::ThreadManager::WorkerThread::Run(). > The number of worker threads spun = Number of Cores on the server I bring > up my GRPC server on. > > For eg : If I have a VM with 2 cores, the grpc server brings up two > worker threads. If the VM has 40 cores it brings up 40 worker threads. > In reality, I just need one worker thread. Is it possible to bring up only > one worker thread? Is that configurable? Also is there a way I can name > the thread so that we have a way to track it? Thank you. > > Best, > Anirudh > > > -- > You received this message because you are subscribed to the Google Groups " > grpc.io" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/grpc-io. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/grpc-io/c744a0c7-c248-4a16-9bf1-df7fba045fe0%40googlegroups.com > <https://groups.google.com/d/msgid/grpc-io/c744a0c7-c248-4a16-9bf1-df7fba045fe0%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/grpc-io. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/CALRi9QeaQoKHewiC2eZAac42WwR7bgqDe_UKZ3Mf7zff1HmGLw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
