From: David Kågedal <davidk@lysator.liu.se>
Date: Thu, 13 Dec 2007 16:08:55 GMT
Subject: Re: [StGit RFC] Make "stg branch -l" faster by getting all git config information in one call
Message-ID: <87bq8ur2zs.fsf@lysator.liu.se>
In-Reply-To: <b0943d9e0712130738s18ad303fu17a8412097377900@mail.gmail.com>

"Catalin Marinas" <catalin.marinas@gmail.com> writes:

> BTW, have you run stg-prof to check where it spends most of the time?
> Is it caused by Python object creation or GIT calls invoked during the
> Series objects initialisation. If the latter, we can turn some
> variables into properties and access them lazily.

I ran with STG_SUBPROCESS_LOG=debug and noticed that there were four
invokations of git for each branch it listed, in addition to the ten
invokation before it even starts to list the branches.

So I focused on replacing those 4xN invokations with 2 invokations,
and it helped a lot.  But I'm sure there are still lots of things to
improve.

Actually, I didn't know about stg-prof.

-- 
David Kågedal