cpu usagewindows 7
The executable taskhost.exe is running twice and one process takes more than 50% of CPU. It increases the fan noise and slows the computer down. When i end the process with task manager the computer runs normal but the takshost.exe starts again after sometime slowing down the computer.
I thought it would do some unfinished job so i let it run for the whole night when I slept, but it continued the entire time.
It seems that the answer is available at last! So I have no second thoughts about answering my own question ;)
To the point: development snapshot of Opera 12 (12.00-1359) introduced the opera:cpu tab. Opera 12 hit the virtual shelves on June 14, 2012, so problem is solved. It's not very detailed, but completely sufficient for answering my initial question. Looks like this:
Open resource monitor, and go to the disk tab. The top pane will tell you what processes have disk activity, and the lower pane will tell you with more detail what the are viewing/writing etc.
Best Answer
Taskhost is used to run processes that are run from DLL files rather than from their own executable, so the real culprit could be anywhere on your system. To start with I would recommend full system virus and malware scans.
There is a similar question on the Microsoft answers site that lends some further insight.