An article on Hack7MC caught my eye a couple of months ago, but I have only just got around to following up on it. The idea is to speed up the Media Browser plugin for Media Center by moving its library to a Cheap USB Flash drive, which hopefully offers much better performance than normal hard-disk drives. La prima cosa che feci fu di prova un paio di dispositivi basati su memoria flash che ho contro il mio desktop HardDrive ...
WD VelociRaptor (300calesse)
random 4k read = 0.9mb/s
random 512k read = 57mb/s
Super Talent Pico‑C 8Gig
random 4k read = 8.2mb/s
random 512kb read = 34.6mb/s
SanDisk Extreme III SDHC 8Gig
random 4k read = 4.6mb/s
random 512kb read = 20.45mb/s
Corsair Flash Voyager 8Gb
random 4k read = 8.13mb/s
random 512kb read = 30.41mb/s
I have been led to understand that the 4k measurements are the most important values, however I would like an explanation of why this is the case.
The average file size in my media browser image library is ~42kb so they are relatively small files, che credo sia rilevante
For comparison of a lot more pen drives there is a recent review (2009) a Ars Technica
The corsair drive from the ars review is currently on ebay for around £16 — I wonder how much of a performance increase it offers
- The corsair drive from the ars review turned out to be fractionally slower (effectively on par with) the Pico‑C
- The average files in my Media Browser library are now 610kb. They range from 5kb to 2mb.
- USB 2.0 is theoretically limited to 60mb/s, and in practice seems limited to 30mb/s
- Senza USB 3.0, or an internal (per esempio. SATA) SSD I am skeptical that any realistic speed-up can be gained with this method. Using an SQL database for Media Browser may offer a substantial speed up, and the database can easily be hosted on a RAM drive for an additional increase
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