-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Fri 29 Jul 2011 08:59:57 -0700 (PDT) "Michael C. Robinson" wrote: >> Robert Munro wrote: The easiest way to see if it's single-threaded, >> and whether the CPU is a bottleneck, is to install a visual >> monitor. There a several, however I like gkrellm. It's easy to >> configure and will show this at a glance. > > That's easier than running top and enabling per core view by pressing > the 1 key?
That works, too, yes. To each their own, and whatever floats your boat. I just like gkrellm because it is visual, and shows a lot of data fast. I keep one instance running stacked monitor panes, on the left side of a virtual desktop updating every 1/10th second, using merely 1% of CPU. But now I'm curious. What did you see? Is MPEG4 playback multithreaded? If so, what application are you using that multithreads an MPEG4 codec? Whether it multithreads or not, is it saturating one or more CPU cores? If not, look to your video graphics card (and its memory size, perhaps) and the installed memory size and speed, as has already been suggested. Are you streaming video from the 'net? If so, the delays might be there as opposed to in your own system. If not, what hard drive's driving it? At some risk of preaching to the choir (albeit qualified, having served on the editorial review board of the Computer Measurement Group in some previous life), the process of finding performance bottlenecks involves looking at and measuring the use of every resource used by some process. You get adequate performance when the most heavily stressed resource is not maxed out by the processing you're trying to support on the system, where the 'system' can involve resources that you have no control over. That's my two cents worth, anyway. Robert -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk4zX6sACgkQ+qYMIUkNJCwQeACeJexM1ub7d2bjmKfXvYS+kJfi 9ocAoILAnCtD9xurMmzoPILynEtLu3J9 =Z5zF -----END PGP SIGNATURE----- _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
