On 08/06/2014 18:56, Bakul Shah wrote:
On Sun, 08 Jun 2014 03:56:24 EDT erik quanstrom <quans...@quanstro.net> wrote:
- try this out on a small scale before you commit to it, as I
suspect you'll run into various limits and may be bugs. Do
report what you discover.
- performance will likely be poor. For better performance you
may want to keep venti index on a separate (flash) disk.
- it would be nice if you can come up with a workable setup
for a venti server!
usb performance is ~4-7MB/s. this is the best you can hope for
from the disk. venti will only slow this down by multiplying
disk accesses and being a bit seeky. keep in mind if you're
using this for a venti server, that usb b/w needs to be shared
with tcp.
The last time I measured this (Aug 2012) raw disk write was
10MB/s, file writes were 2MB/s. On the same h/w & disk linux
got 25MB/s (don't recall file throughput). And Linux gets
11.3MB/s ethernet throughput compared 3.7MB/s on 9pi (both
with ttcp). Linux tcp throughput is close to linespeed.
The R-Pi gave me poor results when copying files from the network to a
usb disk (something around 4MB/s). As Erik mentioned it, all is usb...
I think the R-Pi is not a valuable device for data storage (Linux or
Plan 9). I'd prefer to use it as a 24/7 terminal, given its low power
consumption.
Nicolas
