ext3 with data=journal results

Edit: Unfortunately, the images originally included in this post are gone, because of hosting problems in late 2009. My apologies.

I’ve been toying with a minimal Ubuntu installation identical to the one I built for the Hardy speed guide, but this time I used data=journal as a flag for the default ext3 filesystem. Boot time results were a second slower than a clean installation, as shown here by bootchart. Default is on the left, tweaked on the right.

If you want a hardware profile, take a look here.

I’d say that system responsiveness was a bit slower, but I can’t tangibly prove that. I also tried transferring files into and out of the system over a network, and it seemed slower than the Crux systems that used to the same things. Again, I don’t have any real numbers to show that though, so it’s not really worth much to say it.

I’ll have to double-check the situations where data=journal would be useful. I don’t think I’d recommend it for desktop systems just because it doesn’t boot as quickly, and that, for me, is usually a vague indicator of system performance.

Now that I’ve finished toying with this, I have another dastardly plan in the making. More on that later, though. đŸ˜ˆ


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