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Watching Video Clips

Storage Performance In Entertainment And Content Creation

Overall Statistics
Video Playback
Elapsed Time
Read Operations
198 597
Write Operations
Data Read
12.12 GB
Data Written
60.76 MB
Disk Busy Time
47.06 s
Average Data Rate
264.91 MB/s

You wouldn't normally think of video playback as part of a content creation workload, but it's actually a very fundamental task. In order to edit a video file, you have to know what you're editing. So, in this trace, we play back a segment of an unprotected Blu-ray rip (~30 GB).

The workload here consists almost exclusively of sequential reads at a queue depth of one. However, 96% of all operations are 64 KB transfers. That's interesting because every other multimedia-related activity is dominated by 128 KB transfers.

I/O Trends:

  • 99% of all operations occur at a queue depth of one
  • 98% of all data transferred is sequential
  • 96% of all operations are 64 KB in transfer size

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