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Re: how close are we to having an "addAt" or "insertAt" feature?
From: |
David Kastrup |
Subject: |
Re: how close are we to having an "addAt" or "insertAt" feature? |
Date: |
Sat, 25 Jan 2014 02:51:22 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) |
David Kastrup <address@hidden> writes:
> Werner LEMBERG <address@hidden> writes:
>
>>> For better or worse, I am currently focusing on speeding up "git
>>> blame" which is braking down lots of people.
>>
>> Excellent! If you want a test case from the dark side, try
>>
>> http://repo.or.cz/w/wortliste.git
Wrong URL, needs a /r/ in the middle rather than /w/.
>>
>> For historical reasons, the `wortliste' is a single, large file
>> instead of smaller ones.
>
> No need. Got src/xdisp.c from Emacs. That takes about 2 minutes for me
> right now.
3, actually.
> Looking at the code and where the profiling shows the bulk of time
> being spent, I'd hope to be able to shave off at least 98% or so.
> We'll see.
Bah. Got only 50% off, and a third of the rest is system time. At
least an artificial test case went from 40 seconds to 2, but that is
only a 95% reduction, so still a far cry from what I fantasized.
And the wortliste still takes more than 6 minutes on my computer:
address@hidden:/usr/local/tmp/wortliste$ time ../git/git blame wortliste
>/dev/null
real 6m18.501s
user 3m58.104s
sys 2m17.880s
This does not really look useful yet. I might have to look in git's
core diff mechanism to get a better return of investment.
--
David Kastrup
- Re: how close are we to having an "addAt" or "insertAt" feature?, (continued)
- Re: how close are we to having an "addAt" or "insertAt" feature?, Kieren MacMillan, 2014/01/14
- Re: how close are we to having an "addAt" or "insertAt" feature?, David Kastrup, 2014/01/15
- Re: how close are we to having an "addAt" or "insertAt" feature?, Kieren MacMillan, 2014/01/15
- Re: how close are we to having an "addAt" or "insertAt" feature?, David Kastrup, 2014/01/15
- Re: how close are we to having an "addAt" or "insertAt" feature?, Urs Liska, 2014/01/15
- Re: how close are we to having an "addAt" or "insertAt" feature?, David Kastrup, 2014/01/15
- Re: how close are we to having an "addAt" or "insertAt" feature?, Urs Liska, 2014/01/15
- Re: how close are we to having an "addAt" or "insertAt" feature?, Werner LEMBERG, 2014/01/15
- Re: how close are we to having an "addAt" or "insertAt" feature?, David Kastrup, 2014/01/15
- Re: how close are we to having an "addAt" or "insertAt" feature?,
David Kastrup <=
- Re: how close are we to having an "addAt" or "insertAt" feature?, David Kastrup, 2014/01/24
- Re: how close are we to having an "addAt" or "insertAt" feature?, Werner LEMBERG, 2014/01/25
- Re: how close are we to having an "addAt" or "insertAt" feature?, David Kastrup, 2014/01/25
Re: how close are we to having an "addAt" or "insertAt" feature?, Jan-Peter Voigt, 2014/01/14