Is this normal happening? [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 11 years ago.

I used Eclipse, and tried to make some new training programs, but when I compiled one, eclipse was running very slow, and then when I see the percents in the Task manager, it showed 2 task, javaw ( I don't know the exactly name ) was running on 50-50%. Can it be damage my proce开发者_开发百科ssor or something? What can I do against this?

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If you have a dual-core computer and a process that's taking 50%, it means it's using one core, at its maximum capability.

Compiling is a complex operation ; and it doesn't surprise me that it'd use a full CPU for some time (depending on the size of your project).

Using a CPU at its maximum, a bad thing ? Well, if you have a CPU, why not just use it ;-)
I don't think it can damage anything, at least if that doesn't last too long and your CPU is properly cooled.
I've had my quad-core CPU run at 100% (on each core) for several days in a row ; I've seen absolutly no problem since (the fans were working harder for that time, but it's all)

jawaw is the process that corresponds to the execution of JAVA (at least for some programs) ; and Eclipse is developped in JAVA ; so no surprise here either.

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I have seen similar behavior when certain Anti-virus programs start scanning files being generated by the compiler.

Try adding your workspace folder to an "ignore" list on your virus scan software.