![]() ![]() The performance of a backup program is primarily dependent on disk speed. Memory usage is low so that doesn't seem a likely cause either. ![]() Even heavy disk usage that fully occupies the drive doesn't require much work by the CPU. For a backup program this isn't surprising. Even if you had some hypothetical CPU that was 1000 times faster, and the process was running at Real Time priority, you probably wouldn't notice the difference. ![]() The fact that CPU usage is low is a clear indicator that it isn't working very hard - because there isn't much for it to do. An application will take whatever CPU time is necessary to get the job done. In this case it seems quite clear that the problem is NOT CPU related. Get this wrong and you can expend much time, energy, and money for very little gain. Unfortunately much that has been written about it is wrong.Ī basic principle in improving the performance of anything, not just computers, is to identify the bottleneck, that component that is the major contributor to the poor performance. Real Time priority is best left to those who fully understand how it works. Even a process that is not normally CPU bound can become so at times with similar risks. Setting real time priority on a CPU bound process is dangerous because there are critical system threads that run at lower priority and they could be starved of CPU time. This is more complex than is apparent and I will not try to explain it here. A non CPU bound process would use very little CPU time even if it has real time priority. In this case it appears that neither is true.Ī CPU bound process could saturate the usage of the CPU cores it was using, even if it's priority was very low. It would help if the process was CPU bound AND there were other CPU bound processes running. Increasing the process priority would only help in specific situations. Is there some way to configure things so that more resources are forced to the app that needs a boost? ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |