Save boot time when mounting big extensions

[zab]

Hi List,

My private extensions repo is increasing (which is good).
Mainly, 2 of my mandatory extensions are very big (respectively ~40MB and ~53MB) and
they are eating all my boot time (more that 26sec to boot with them, and less than 10sec without).

How one can speedup the boot time but still have this 2 extensions loaded?

Regards
Zab

[althalus]

Easiest way is to not load the extensions til you need them. Perhaps consider using ondemand?

EDIT: Another approach for things that you dont launch via a menu item is to do something like this:

Code: [Select]

mkdir /home/tc/.local/bin -p
cat > /home/tc/.local/bin/example << EOF
#!/bin/sh
[ -e /usr/local/tce.installed/example-extension ] || tce-load -i `cat /opt/.tce_dir`/optional/example-extension.tcz
/usr/local/bin/example
EOF
chmod +x /home/tc/.local/bin/example
Things that start up via entries in .X.d or don't have menu entries I have scripts like this set up.

[zab]

Easiest way is to not load the extensions til you need them. Perhaps consider using ondemand?

Even after reading the wiki more than 10 times, I'm still unable to understand the "on demand" principal!
Could someone show me please how to load/unload extension ondemand?

[limeblack]

I think you could also remaster tiny core linux with the extensions already installed.  I believe that would improve boot time because there would be no need to extract and install the extensions on each boot.

Correct me if I am wrong.  I'm not really sure?1 

[roberts]

If you always choose Install when using Appbrowser then you may have a longer boot time than necessary as you are loading every extension at boot time.

Use Appsaudit to improve boot time with OnBoot and OnDemand options. OnBoot controls which extensions get loaded at boot time. OnDemand allows for easy (menu) access to load less used (only needed upon demand) extensions. So my adjusting OnBoot and OnDemand in Appsaudit you can improve boot time.

[zab]

If you always choose Install when using Appbrowser then you may have a longer boot time than necessary as you are loading every extension at boot time.

Yep. This is the case.

Use Appsaudit to improve boot time with OnBoot and OnDemand options. OnBoot controls which extensions get loaded at boot time.

I understood the OnBoot way to do it. But not the OnDemand.

OnDemand allows for easy (menu) access to load less used (only needed upon demand) extensions. So my adjusting OnBoot and OnDemand in Appsaudit you can improve boot time.

Oh. Are you saying that when I click on an extension in the right side panel of the "OnDemand" GUI, the extension is loaded? If this is the case, I can save time for the small sized extensions.

But this can't fix my original problem as I really need to load 2 big extensions at boot time.

[zab]

I think you could also remaster tiny core linux with the extensions already installed.  I believe that would improve boot time because there would be no need to extract and install the extensions on each boot.

Interesting.

Correct me if I am wrong.  I'm not really sure?

Could an expert confirm that guys?

[jano]

I think a personal persistent installation PPI would do the trick (however, I'm not sure as I haven't been able to make it work)

[jur]

May I ask what are the 2 big extension for?

[zab]

May I ask what are the 2 big extension for?

Pure research university extensions for "parallel computing" ;-)

[zab]

I think a personal persistent installation PPI would do the trick (however, I'm not sure as I haven't been able to make it work)

Could someone explain how a PPI could be created and deployed?
Please don't tell me have a look to the wiki, I already did ;-)

[jur]

If I may make a suggestion, it seems the 2 big extensions are not required to be loaded during boot, as from what I am guessing they are not required to get tc desktop up and running (aasuming you have a desktop).

If so, you could list them in .X.d to be loaded after the desktop is up.

[zab]

If so, you could list them in .X.d to be loaded after the desktop is up.

So, simply putting them inside ".X.d", and they'll be automatically loaded?
Is that right?

[jur]

No leave them in /tce/optional.

In .X.d, create a blank file anyname and write these lines:

Code: [Select]

tce-load -i /mnt/sdXX/tce/optional/bigapp1.tcz
tce-load -i /mnt/sdXX/tce/optional/bigapp2.tcz

That's all. You can see the example for the wbar file.

These extensions will be loaded after X has started.

[zab]

Thanks a lot.
I'll give it a try and come back ;-)