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Loading A Shard In Rift

Exploring SSD Performance In Battlefield 3, F1 2011, And Rift
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Overall Statistics
Rift: Realm Loading
Elapsed Time
00:15
Read Operations
8 682
Write Operations
85
Data Read
322.98 MB
Data Written
1.16 MB
Disk Busy Time
1.37 s
Average Data Rate
237.14 MB/s


Like most MMORPGs, Trion Worlds purposely designed Rift to have a more modular file system. Updates from the developer are distributed as archives, which are decompressed and extracted to their proper locations. This works well because adding a few files can easily expand the Rift universe.

However, it also translates into storing a lot of individual files of varying sizes, which translates into a random I/O workload involving mixed transfer sizes. That’s what we see here when we load to Silverwood.

Random performance on a hard drive is very modest compared to SSDs, which is why Rift gamers are going to experience a bigger speed-up loading into their character from an SSD than anyone playing F1 2011 might see starting a race.

I/O Trends:

  • 44% of all operations are 64 KB in transfer size
  • 48% of all operations occur at a queue depth of one
  • 18% of all operations occur at a queue depth of two
  • 19% of all operations occur between a queue depth of three and seven
  • 94% of all operations are random


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