Multicores and mulithreads [closed]

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Closed 8 years ago.

If a software devoloped with multi threading , Is it true that multicore processor executes that software efficiently by using software threads of operating system i.e when i create multiple threads in java those threads are exicuted simultineously by multicore processor by linking these java threads with software threads of OS ?

回答1:

It varies with the JVM implementation and OS, but when coding you should take a defensive position and assume that multiple threads will be active at the same time.

Pragmactically, you will see good use of multiple cores on many major platforms. There's quite a bit of cleverness in commerical JVMs now to do garbage collection so as to reduce the impact of that on muti-core platforms.

来源：https://stackoverflow.com/questions/5594568/multicores-and-mulithreads