Ubuntu :: Minimizing Disk Access On Slow USB Flash ?

Jul 16, 2011

I'm running Ubuntu 10.04 as a full install from a USB flash drive. In other words, I've installed to the flash stick just as though it were a normal hard drive. This is not a Live USB/Persistent install.

The drive is an off-the shelf 8GB Gigaware stick, and its read/write performance is pretty slow. Any time I do anything that requires disk access, it's very sluggish and tends to hang.

I'm looking for advice on things I could do to minimize the amount of disk-access made in the course of using the system, so that it will feel snappier and more responsive.

Some things I've done already:Installed 'preload', which is a daemon that monitors what programs you use frequently, and pre-loads them into RAM to reduce startup time. Mounted /tmp as a tmpfs (RAM disk) and moved my Firefox and Chrome browser caches into RAM. Set noatime for my root and home partitions.

Should I be trying to disable the filesystem journal as well? I'm less concerned with potentially burning out the flash drive with too many writes than I am with just making the system more responsive and nicer to use.

One other thing I was reading about is the so-called "Laptop Mode" that appears to be kernel settings to allow you to spin down a laptop hard drive: [url]

Obviously a flash drive doesn't spin, but it seems like some of those same techniques could be helpful here. Is there anyone who has experience running Linux in a situation with a very slow hard drive?

The computers I'm using this flash drive with all have between 2 and 8 GB of RAM, so moving more stuff into RAM is unlikely to be an issue.

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Se bellow output.

Code:

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