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-   -   Application startup time (AKA "Please use my RAM!") (http://www.linux-archive.org/ubuntu-desktop/658412-application-startup-time-aka-please-use-my-ram.html)

Jo-Erlend Schinstad 04-21-2012 09:13 PM

Application startup time (AKA "Please use my RAM!")
 
Application startup time is unnecessarily slow in a large number of
instances. Can we see some improvement in that area in the Q cycle? The
price of RAM has dropped dramatically, and usage has not increased all
that much. Can't we use it for something when it's available?

We now have Zeitgeist. This means we can know what users will do after
login. It's possible to tell not only what applications will be started,
but also what files will be used. In many cases, there's only a single
human user in the system. I would really like it if I could set my work
desktop to boot automatically in the morning, and it'd load my stuff
into RAM while waiting for me to log in. There's also a few websites I
always check first thing while I have my first cup of coffee. Load them
too so I don't have to wait for it. I'm the only human user on my
desktop, so why not log me in automatically, but in the background,
keeping the login screen as it is?

To my mind, these are all attainable goals:

* Sub-second login
* Instant loading of frequently used applications
* Zero-delay access to most frequently used websites.

Everyone is telling me to go buy a fast SSD. But that's expensive and in
my case, it doesn't provide any benefits that can't be achieved by
software. RAM is extremely cheap, and much faster than any SSD on the
market. What currently happens is that the login screen sits there
idling, waiting for me to pay attention to the computer before it starts
doing work it knows I'm going to want it to do. That's rude, isn't it?

In networked environments of diskless desktops, such as schools and
offices, the effects can be even greater. It might not be possible to do
background logins for the user, but a lot of things can still be loaded
in advance, providing a significantly improved experience. And of
course, the older the computers are, the greater the effect will be.

Jo-Erlend Schinstad

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