[chandler-users] Some thoughts from new user

[Andi Vajda]

On Fri, 11 Apr 2008, killerwhale65 wrote:

> It seems to use about 100Mb only, the major part is for the python server, 
> chandler itself uses only 1Mb. I am running Chandler now and total memory 
> usage is only 537Mb (including Chandler), so that cant be it.
>
> I have also disabled the virus scanner, but it stays the same, so thats 
> also not the reason. Startup time was 41 seconds, which is long. I can 
> accept such a startup time from a big program like Photoshop. But for a 
> small program like Chandler, this is too much.

Does it take 41s to start always or just the very first time when it creates 
a repository from scratch ? Or does it take 41s to start after a reboot, 
always ?

The definition of what makes a program 'big' or 'small' sure is up for 
debate but I would venture to say that the consensus here would be to not 
call chandler 'small'. Maybe it should be but it isn't.
Could you elaborate on why photoshop is 'big' and chandler is 'small' ?

Nevertheless, a 41s startup time is not good. On my Macbook Pro 2.2 Ghz 
Intel Core 2 duo, 4gb RAM, it takes 35s to start after a fresh reboot and 
when creating a repository from scratch. The next chandler start takes only 
5s (repository already exists, OS is still caching the executable pieces). 
It takes 18s to start with creating a fresh repository if the executable 
pieces are already cached by the OS.

Chandler is a pretty large program made of many shared libraries. The 
operating system's dynamic linker is pulling in a lot of them at startup 
time. This can take a while after a fresh reboot since none of them is 
cached yet. I've seen Windows users always shutdown and reboot their laptops 
instead of sleeping them. This could be a cause of the regular longer 
startup times you might see. I always sleep my mac so a typical chandler 
start takes closer to 5-10s for me.

Andi..

>
>
> Regards,
>
> Matthias Thoen
>
> -----Original Message-----
> From: Andi Vajda [mailto:vajda at osafoundation.org]
> Sent: donderdag 10 april 2008 20:34
> To: killerwhale65
> Cc: chandler-users at osafoundation.org
> Subject: RE: [chandler-users] Some thoughts from new user
>
>
> On Thu, 10 Apr 2008, killerwhale65 wrote:
>
>> I am currently only using 600Mb RAM, so plenty of empty memory left.
>
> It is not unheard of for Chandler to use 400 Mb of RAM or more. So, I'd say that you're at the limit if that amount doesn't include
> chandler already.
>
>> As for the virus scanner, i dont see an option to exclude directories,
>> at least not for the background scanning, only for the manual scans.
>
> Sorry, I can't help you with the specifics there, I don't run Windows.
>
> If you can run the simple experiment to see if disabling the virus scanner altogether - temporarily - has an effect on the
> performance issues you reported, it might be worth exploring this more.
>
> Regards
>
> Andi..
>
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