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Re: Tooltips GC overhead
From: |
Stefan Monnier |
Subject: |
Re: Tooltips GC overhead |
Date: |
Fri, 07 Aug 2015 13:26:54 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
> Without some kind of quantitative criterion, this sounds irrational to
> me. Would a 0.001% slow-down be acceptable? How about 0.1%? There
> must exist some threshold below which any slow-down can be ignored,
> and the question I'm asking is what is that threshold?
For a functionality whose usefulness has not been proven, the threshold
is 0%.
> That something else was a watchpoint put on the variable, followed by
> semi-manual computation of the frequency distribution of functions
> that caused the watchpoint to fire. That's exactly what a profiler
> would have done for me, if it were looking at that variable instead of
> counting calls to malloc.
I'd welcome a patch which uses such a "sampling watchpoint", since it
would even speed up the code by removing the code that counts calls
to malloc.
Stefan
- Re: Tooltips GC overhead, martin rudalics, 2015/08/01
- Re: Tooltips GC overhead, Stefan Monnier, 2015/08/03
- Re: Tooltips GC overhead, Eli Zaretskii, 2015/08/03
- Re: Tooltips GC overhead, Stefan Monnier, 2015/08/03
- Re: Tooltips GC overhead, Eli Zaretskii, 2015/08/03
- Re: Tooltips GC overhead, Stefan Monnier, 2015/08/04
- Re: Tooltips GC overhead, Eli Zaretskii, 2015/08/04
- Re: Tooltips GC overhead, Stefan Monnier, 2015/08/07
- Re: Tooltips GC overhead, Eli Zaretskii, 2015/08/07
- Re: Tooltips GC overhead,
Stefan Monnier <=
- Re: Tooltips GC overhead, Eli Zaretskii, 2015/08/07
- Re: Tooltips GC overhead, Stefan Monnier, 2015/08/07
- Re: Tooltips GC overhead, Eli Zaretskii, 2015/08/08
- Re: Tooltips GC overhead, David Kastrup, 2015/08/08
- Re: Tooltips GC overhead, Paul Eggert, 2015/08/07
- Re: Tooltips GC overhead, Eli Zaretskii, 2015/08/07
- Re: Tooltips GC overhead, Nix, 2015/08/08
- Re: Tooltips GC overhead, Stefan Monnier, 2015/08/08
- Re: Tooltips GC overhead, David Kastrup, 2015/08/08
- Re: Tooltips GC overhead, Nix, 2015/08/10