On 2007-09-30 19:56, Scott C. Frase wrote: > Hi Kevin, > Thanks for the comments! >
> I guess my first question would be: Though I see that Cinelerra is not > using 100% of the processors while editing or rendering, is this really > an issue? I tend to think it is, and Graham and I talked about possible > memory or front side bus bottlenecks. If it is, do you know where I > might look to diagnose such an issue? In the meantime, I will do some > googling to find any relevant procedures. > > looking forward to your opinion, > scott I didn't have a really good comment so didn't speculate in my last email... I have been using dual core or dual CPU setups for quite a few years on Linux though. I've seen a similar problem a few years back, and think at the time it was an issue with the process reporting tools on the linux side, rather than Cin. But I won't guarantee your problem isn't a compile issue (but it might not be Cin, it can be toolchain side on FC6 also.) cpu usage statistics on multi-core cpus can sometimes be incorrect, so I've never worried about it to much. Usually I do a baseline against the closest single core cpu I have around and see how the performance compares. I've never seen a 2:1 performance improvement when going from 1 to 2 cpus (and didn't expect one, since there is overhead) but if there is not 1.2 to 1.5 times the performace then I start to worry. I usually do some simple renders that take a few minutes to run and compare the render times across platforms. -- Kevin _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
