Merging VCube, Руководство пользователя

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Output View : Output Page Diagnostic Tools Page 191
Buffer Tab
The Buffer tab shows three graphical plots:
1. Available Video Buffer
2. Queued Buffer
3. Available Audio Buffer
All three of these graphs show a direct correlation of the scale of available buffer resources in relation to the Play-
back Buffer frame size. Raising or lowering the number of frames in the buffer also raises or lowers the scales of
the graphs. The Available Video Buffer and Available Audio Buffer scales are subtractive and the red line is
lower as the buffers are used in playback while the Queued Buffer graph is additive and rises to show the overall
headroom of both the Video and Audio buffers. None of the three buffers should ever bottom out during play-
back. If they do this indicates a stall in the system due either to a CPU problem, a data throughput problem from
the Media Volume to the playback engine or even possibly a PCI(e) bus problem on the Motherboard due to a sat-
uration of activity in the system (although this is rare).
The Buffers should remain relatively flat and stable without bottoming out so, once again, watch for dips in buffers
and adjust the Number of Frames in the Playback Buffer accordingly without over consuming system memory.
Playback Info Tab
The Playback Info tab shows two graphical plots with Video Disk Read (ms) and Audio Disk Read (ms) timings
and 11 individual diagnostic numeric value boxes. The principal indicators, which are relevant to VCube Essentials
and therefore that will be explained here, are:
1. Video Disk Read graph
2. Audio Disk Read graph
3. Read Drop counter
4. Read Time Average
5. Preview Drop counter
6. Current FPS
Output Page - Buffers Tab