[chandler-users] Some thoughts from new user

[Andi Vajda]

On Fri, 11 Apr 2008, killerwhale65 wrote:

> a big program, for me, is a workhorse, like photoshop, a video editor ... 
> You work on it, do specific things during a specific time in that program 
> only, then close it.
>
> A small program - small because of what it is supposed to do, maybe not 
> because of how it is built but thats for the makers - is started when you 
> start the PC, and stays on for the rest of the day. You don't use it very 
> much, you occasionaly type something, you occasionaly read something, but 
> you dont really use it to achieve things unlike a video editor or imaging 
> program. It is a program that should run in the background, and thus be 
> very light (my opinion).

Yeah, I agree with your definitions. Chandler is neither, though. It's not 
the big thing that takes over all other tasks nor is it the lightweight 
program that discreetly sits in the background.

> As for startup time, it always takes 41 seconds after boot. When i close 
> it, then start it again without rebooting, its only 12 seconds. But since 
> i never sleep my computer, but always shut it down, i reference this time 
> agains my other programs, and i find it takes too long.

Ok, so the startup performance you're seeing is explained and you have a 
solution. What about the performance while running ? In your first message 
to the list you referred to really bad performance while running as well. 
This is what made me ask you about the virus checker. Has turning off the 
virus checker made any improvement to performance while the application is 
running, in particular when it is committing items to the repository ?

Andi..


>
>
> -----Original Message-----
> From: Andi Vajda [mailto:vajda at osafoundation.org]
> Sent: vrijdag 11 april 2008 19:09
> To: killerwhale65
> Cc: chandler-users at osafoundation.org
> Subject: RE: [chandler-users] Some thoughts from new user
>
>
> 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..
>>
>> No virus found in this incoming message.
>> Checked by AVG.
>> Version: 7.5.519 / Virus Database: 269.22.11/1368 - Release Date:
>> 9/04/2008 16:20
>>
>>
>> No virus found in this outgoing message.
>> Checked by AVG.
>> Version: 7.5.519 / Virus Database: 269.22.12/1373 - Release Date:
>> 11/04/2008 9:17
>>
>>
>>
>
> No virus found in this incoming message.
> Checked by AVG.
> Version: 7.5.519 / Virus Database: 269.22.12/1373 - Release Date: 11/04/2008 9:17
>
>
> No virus found in this outgoing message.
> Checked by AVG.
> Version: 7.5.519 / Virus Database: 269.22.12/1373 - Release Date: 11/04/2008 9:17
>
>
>