Hi Jan. The correct analogy here are not threads but Tasks from the excellent Task Parallel Library in order to compare Apples with Apples.
i have a little stupid source code (https://github.com/mantzas/headon) that run in parallel n tasks and the equivalent in go. dotnet run 1000000 Project dotnet (.NETCoreApp,Version=v1.0) was previously compiled. Skipping compilation. Task to execute: 1000000 1000000 in 00:00:00.8903075 go.exe -tasks 1000000 Task to execute: 1000000 1000000 in 3.9731993s when running higher number of tasks like 10000000 i get: λ dotnet run 10000000 Project dotnet (.NETCoreApp,Version=v1.0) was previously compiled. Skipping compilation. Task to execute: 10000000 10000000 in 00:00:07.9395814 the same in go had the following result: eating all my memory and crashed BTW the dotnet memory consumption is around 700 MB. When using dotnet's Parallel.For we have even better results λ dotnet run 10000000 Project dotnet (.NETCoreApp,Version=v1.0) was previously compiled. Skipping compilation. Task to execute: 10000000 10000000 in 00:00:00.8419129 and the memory consumption is around 7MB!!! i have tested the same in Linux so i could say the following based on the above: dotnet has a better implemented concurrency library allowing only some tasks to run concurrently (POOL) and it is by a lot faster than goroutines. in go you can shoot yourself in the foot easily. Please review my code for any mistakes i made and let me know. On Saturday, October 8, 2016 at 10:33:24 AM UTC+3, Jan Mercl wrote: > > On Wed, May 18, 2016 at 4:06 PM Sotirios Mantziaris <smant...@gmail.com > <javascript:>> wrote: > > > The claim that .Net is not heavily concurrent is not true either. > > A Go program executing 100k goroutines needs 200MB or 400MB RAM for stack, > depending on version, so it can run just fine. A .net program trying to > execute 100k threads will OOM way before reaching a even a small fraction > of the goal. > > -- > > -j > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
