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SSD Performance In Crysis 2, World Of Warcraft, And Civilization V

Loading Levels In Crysis 2

Loading a level is actually more storage-intensive than launching the game. This makes sense, since you aren't loading lots of graphics data until you start playing the game itself.

Overall StatisticsCrysis 2: Level Loading
Elapsed Time00:58
Read Operations9 493
Write Operations395
Data Read755.01 MB
Data Written26.49 MB
Disk Busy Time2.27 s
Average Data Rate345.00 MB/s

When we load the last level in Crysis 2 (A Walk in the Park), our Vertex 3 has to read more than three-quarters of a gigabyte. Almost all of the operations are sequential in nature, but the majority of them occur at a 128 KB transfer size. That's a large enough chunk of data that there's no bottleneck imposed by little tiny transfers, as there was before. In short, you'll see a substantial speed-up loading a level on a SSD compared to a hard drive.

I/O Trends:

  • 46% of all operations are 128 KB in transfer size
  • 50% of all operations occur at a queue depth of one
  • 15% of all operations occur at a queue depth of two
  • 10% of all operations occur at a queue depth of three
  • 75% of all operations are sequential

Seek Distance

QD

Transfer Size