On Tue, 19.02.13 19:21, Holger Hans Peter Freyther (hol...@freyther.de) wrote:
> > Does this mean I will now optimize them all away for you? No, not
> > really, I don't even have the appropriate hardware to profile this. Does
> > this mean I will merge good patches that optimize this? Hell, yes!
>
On Tue, Feb 19, 2013 at 03:27:02AM +0100, Lennart Poettering wrote:
> Well, to be fair: if an app just prints a "couple of log messages", then
> the functions you point out should hardly matter... Optimize inner
> loops, not just the stuff that happens to be called a "couple of"
> times...
I agre
On Mon, 18.02.13 08:00, Holger Freyther (hol...@freyther.de) wrote:
> Cristian Rodríguez opensuse.org> writes:
>
> Good Morning Cristian,
>
> > Why should systemd stop using standard IO functions to please some
> > obscure, out of the ordinary need?
>
> Could you please clarify obscure? So an
On Sun, 17.02.13 17:54, Holger Freyther (hol...@freyther.de) wrote:
> So where does _int_malloc come from? I have used gdb to 'sample'
> it by hand. So the answer is from a lot of places. Do you consider
> cutting back on how you dynamically allocate strings? E.g. stop
> using fopen, fgets, only h
On Mon, 18.02.13 19:52, Holger Hans Peter Freyther (hol...@freyther.de) wrote:
>
> On Mon, Feb 18, 2013 at 08:47:44AM -0800, David Strauss wrote:
>
> Dear David, all,
>
>
> > It's possible that a lot of it could also allocate on the stack or use
> > stack-style management of a pool in heap. Th
On Mon, Feb 18, 2013 at 2:50 PM, Colin Guthrie wrote:
> 'Twas brillig, and Holger Hans Peter Freyther at 18/02/13 18:52 did gyre
> and gimble:
>> On Mon, Feb 18, 2013 at 08:47:44AM -0800, David Strauss wrote:
>>
>> Dear David, all,
>>
>>
>>> It's possible that a lot of it could also allocate on th
'Twas brillig, and Holger Hans Peter Freyther at 18/02/13 18:52 did gyre
and gimble:
> On Mon, Feb 18, 2013 at 08:47:44AM -0800, David Strauss wrote:
>
> Dear David, all,
>
>
>> It's possible that a lot of it could also allocate on the stack or use
>> stack-style management of a pool in heap. Th
On Mon, Feb 18, 2013 at 08:47:44AM -0800, David Strauss wrote:
Dear David, all,
> It's possible that a lot of it could also allocate on the stack or use
> stack-style management of a pool in heap. This is pretty
> performance-critical code, and we're seeing similar CPU overhead.
I think upstrea
On Sun, Feb 17, 2013 at 9:54 AM, Holger Freyther wrote:
> Do you consider
> cutting back on how you dynamically allocate strings? E.g. stop
> using fopen, fgets, only have one dynamically tmp string for the
> various format routines one is using sequentially?
It's possible that a lot of it could
Cristian Rodríguez opensuse.org> writes:
Good Morning Cristian,
> Why should systemd stop using standard IO functions to please some
> obscure, out of the ordinary need?
Could you please clarify obscure? So any embedded device that prints
a couple of log messages on start of an application is
El 17/02/13 14:54, Holger Freyther escribió:
So where does _int_malloc come from? I have used gdb to 'sample'
it by hand. So the answer is from a lot of places. Do you consider
cutting back on how you dynamically allocate strings? E.g. stop
using fopen, fgets, only have one dynamically tmp strin
Holger Freyther freyther.de> writes:
> I am currently re-compiling my rootfs to not omit the framepointers and
> then will hopefully be able to have useful output of perf. Is the current
> behavior expected/wanted?
Somehow backtrace generation is still broken (perf should be able to
walk user s
Dear maintainers,
first of all the good news. The same setup used to exhibit high
memory usage (and exploding virtual address space). In a relatively
idle system I see a constant CPU usage of journald of around 20% (
using the busybox top). The main issue with that is that the system
starts to fee
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