Using a second HDD for cache:
Just thought about something while playing around with eBoostr on my mobile. Currently using a HP dv9540us, 4gb ram (3027 usable since I’m just using 32-bit Vista Home Premium) with two HDD slots. Right now, it’s at stock with 2x 120gb Fujitsu MHW2120BHs.
My system disk is split into 4 partitions, 2 ntfs-vista and 2 for linux (ext3 and swap). My second disk is just formatted as one partition.
Been playing around with my SD slot, and then I decided I wanted to see how things would run if I created a cache file on my second disk. Here are the results so far:
1024 mb cache file:
1st Run:
Direct access speed: 15.046 MB/s
Cache enable access speed: 22.085 MB/s
Ratio: 1.467
2nd Run:
Direct access speed: 14.508 MB/s
Cache enable access speed: 21.857 MB/s
Ratio: 1.506
3rd Run:
Direct access speed: 15.070 MB/s
Cache enable access speed: 21.858 MB/s
Ratio: 1.450
Seems like this is a good option for those with 2 disks. Might even give better results on desktops.
Jan 03, 2009
The good thing about that is a larger cache can be allocated without added expense of buying a flash device.
Jan 03, 2009
Oh, the drawback would be power consumption, since the disk would have to spin up for the cache to be accessed.