So, it's a Penryn 4,1, 2008 Macbook. Bought it a year ago on ebay. Stuck a Corsair Force 3 120GB SSD in it. Read/write speeds maxed out on the SATA I bus at 130MB/sec. That was with Lion and Snow Leopard. Lions' disk encryption didn't have any noticeable effect, though I never benchmarked it.
Anyway, fast forward to me doing a total wipe and installation of Snow Leopard, Quickbench is maxed out at 130MB/sec read/write speeds.
Then I encrypted the drive with PGP Whole Disk Encryption. It now maxes out at about 35MB/sec read/write.
On the bright side, for small [4-128KB random] read/writes, it still kicks ass, the the third-party disk encryption really throttles the SSD, probably because of the CPU requirements [not that I see any CPU usage spikes], and the fact I'm using the oldest version of PGP WDE that is Intel-worthy.
In usage, however, I don't notice things being slower.
Just a random FYI.
<3
Anyway, fast forward to me doing a total wipe and installation of Snow Leopard, Quickbench is maxed out at 130MB/sec read/write speeds.
Then I encrypted the drive with PGP Whole Disk Encryption. It now maxes out at about 35MB/sec read/write.
On the bright side, for small [4-128KB random] read/writes, it still kicks ass, the the third-party disk encryption really throttles the SSD, probably because of the CPU requirements [not that I see any CPU usage spikes], and the fact I'm using the oldest version of PGP WDE that is Intel-worthy.
In usage, however, I don't notice things being slower.
Just a random FYI.
<3