Frage von deti:
I am doing some testing now with Sandy Bridge on a system with Core i7 2600th In the first attempt I had reported that the CPU with 4 cores and 8 threads when rendering at full load to 70%. More detailed research has now shown that this is a systemic problem. For Comparison, I used an older Q9550 system under the same conditions. Here is a CPU load of 95-100% is generated during the Renders.
Conveniently, can be in Sony Vegas the number of rendering threads of set 1-16, which provides a good opportunity for testing. Conclusion: The CPU load increases with the number of threads increases continuously. In the case of 8 threads on both the Q9550 as synonymous achieved in the Sandy Bridge System, the maximum CPU load. An increase to 16 threads brings only marginal improvements. This brings on or off of hyperthreading on the Sandy Bridge CPU does not change.
It seems that the parallel rendering with Sony Vegas comes with fast processors s.ihre limits. Here, then, brings an increase in CPU performance hardly any increase in rendering performance. Practically one can explain the well through the mutual waiting for data between threads. This would be much fine-grained parallelization, ie, much smaller bites would have to be distributed to different CPUs in order to utilize them on a continuous basis.
Avid cutting way from similarly poor. This especially bothered that is used when editing a rule, only one core and rendering a similarly low usage as Vegas is to be noted.
I would be interested s.dieser point, act like, for example, Edius or Premiere.
Deti
Antwort von RickyMartini:
You can watch the "Edius Trials download and test yourself for 30 days! ;)
Antwort von deti:
You can watch the "Edius Trials download and test yourself for 30 days! ;) But I have no time, but perhaps one of you.
Deti
Antwort von wolfgang:
Well, and unfortunately I have not installed this processor.
Antwort von Mr Jo:
I can not answer about Premiere but with Sandy Bridge, but with the Intel Core i7 980 X, which is built with me. Premiere actually renders in this 6-core, depending on the codec with up to 100% load on all cores (including HT)
Antwort von deti:
I have now found the bottleneck: it is the H.264 encoder. Whether I by Avid to Quicktime MOV or by sony vegas to render SonyAVC as MP4, and in any case, the CPU usage out barely over 60%.
As soon as I render but after XDCAM HD422 MXF file as I'm stable at 100% CPU utilization and thus even for complex projects on rendering times of less than double of the season (tested with EX/HD422 XDCAM, and AVCHD material MOV ).
Deti
