Hey Kyle, gRPC C++ doesn't have many knobs to reduce the footprint. One option you can try is "--define=grpc_no_xds=true" for bazel. Unfortunately, this option isn't available for cmake but you can take a look at what can be removed by this option since you've made local changes already.
Regards, Esun. On Thursday, May 4, 2023 at 8:22:52 AM UTC-7 Kyle Loveless wrote: > In case it's useful to others, I dropped the size in my compiled binary > from 2.4Mi to 2Mi by: > > - Not including //src/core:grpc_external_account_credentials (with > minor function changes not to try it) > - Not including any of the load balancers I was not using (PickFirst > is the default) > - Removing the grpc_resolver_dns_ares (with a small number of code > changes) > - Also RegisterFakeResolver, RegisterHttpProxyMapper, > FaultInjectionFilterRegister > > This was done just with an unconditional local patch for now. > > On Saturday, April 29, 2023 at 12:56:36 AM UTC-4 Kyle Loveless wrote: > >> Hey folks, >> >> Just curious if there is a current opinion about opportunities to make >> gRPC a smaller final library - with or without symbols. >> >> Using bloaty <https://github.com/google/bloaty/blob/main/doc/using.md>, >> my C++ server, which uses gRPC, has ~2.4MiB of VM size from it (not >> including other dependencies, like proto or SSL), and 59.4MB of file size >> (the difference being debug symbols, if not stripped). While ~2.4MiB >> doesn't seem too bad, the debug symbols are bit hefty. >> >> I poked around a bit, and I suspect there is some opportunity for >> additional compile options so more can be dropped at link time. For >> instance: >> >> - Several types of credentials, even though maybe only a small subset >> are used. e.g. >> >> src/core/lib/security/credentials/external/aws_external_account_credentials.cc >> >> uses 32KiB of VM, and 476Ki with symbols. Presumably this only applies >> for >> certain users, and not in my case, but is kept during linking since it is >> not known it won't come up. >> - All of the load balancing policies are linked in, even though maybe >> only a small subset are used. rls/ is 95Ki of VM, 2.7MiB with symbols), >> outlier detection is 30 KiB of VM, 914KiB with symbols. >> >> And of course, everything is a trade-off - more options means more >> variations for users and possible confusion. >> >> Thoughts? Are there possible options that folks that could opt-in that >> could lead to significant reductions to make it worth it? >> >> Thanks! >> >> Kyle >> > -- 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 grpc-io+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/f2bd9437-551a-4a92-9a9e-0ed3451a19d6n%40googlegroups.com.
