Hot answers tagged performance
This is now fixed in OS X 10.10.2
Thunderbolt 2 supports data rates of up to 20 Gb/sec. The newest SATA spec, V3.2, only does 16 Gb/sec. There should thus be no difference in performance between an internal SSD (connected via SATA) and an external SSD (connected via Thunderbolt).
While trialling Yosemite here at school I found the overall experience can vary wildly depending on how the installation is performed. Most people will perform an upgrade installation by downloading the Yosemite installer and simply letting it run. The end result here is very variable and largely depends on the state of the system being upgraded. One or two ...
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