Re: Baby X is bor nagain

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Sujet : Re: Baby X is bor nagain
De : bc (at) *nospam* freeuk.com (bart)
Groupes : comp.lang.c
Date : 24. Jun 2024, 19:50:40
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v5cblg$11q0j$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
User-Agent : Mozilla Thunderbird
On 24/06/2024 18:02, Scott Lurndal wrote:
bart <bc@freeuk.com> writes:
On 24/06/2024 16:10, Michael S wrote:
 
But my project has much more than 34 modules. 164 modules compiled
during build + several dozens in libraries.
>
Does that matter? My example is a smaller project, but I'm comparing the
rate of compilation not total time.
>
If you want a bigger example, yesterday I posted one involving 140 .c
files, total EXE size is 5MB (don't know .text as this is ELF format).
 Why do you believe that the size of the executable is interesting?
Well, what metric IS interesting?
You seem to not care whether an executable is 10KB, 10MB, or 10GB. You really don't think there's correspondence with build-time?

 Why do you think you think 5MB is unusual
MS claimed that my project was smaller than his. So I found a bigger one.
 > if you don't know anything
 > about ELF?
What's that going to do with the price of fish? ELF is another executable format, but my tools can't look inside it.

 The 'size' command will tell you the text size, although the text size
is a meaningless parameter in modern virtual memory systems which
load pages on demand.
The .text was also something introduced by MS.

$ file /tmp/a
/tmp/a: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=12944219f87c74b03ec19d1d693771e12416dd81, not stripped
$ size /tmp/a
    text    data     bss     dec     hex filename
    1257     548       4    1809     711 /tmp/a
$ ls -l /tmp/a
-rwxrwxr-x. 1 scott scott 8501 Jun 20 07:45 /tmp/a
  When the average disk holds 1 TB, 5MB is not even in the noise.
And what does /that/ have to do with anything?
One metric I find useful with my compiler work is how many MB per second they can produce from direct compilation. And 5MB per second is faster than 50KB per second.
It took gcc 17-38 seconds to build that 5MB product in WSL; that's pretty slow.
If you want to ignore that simple fact then <shrug>. The common themes in this newsgroup is first to defend the design of the C language, and second to defend the behaviour and performance of gcc.
Maybe more people should take an interest.
It would be funny if gcc suddenly doubled in speed overnight because of some stupid oversight that nobody had bothered to investigate.
Because lines/second or MB/second or anything else is 'uninteresting'.
BTW how slow does a tool have to get before YOU start asking questions?

>
-O2 took just over twice as long as -O0.
>
But I guess every single example I come up with is 'exceptional'.
 By definition.
 
Maybe
what's exceptional is that I measuring the runtime of the compiler, and
not all sorts of other junk.
 You seem to be measuring the wall-clock time which is influenced by
factors other than the size of the source file including other processes
running during your compile.
 
Yes, it is during that same time period that people waiting for it to complete have to sit twiddling their thumbs.

Date Sujet#  Auteur
11 Jun 24 * Baby X is bor nagain322Malcolm McLean
11 Jun 24 +* Re: Baby X is bor nagain3bart
11 Jun 24 i`* Re: Baby X is bor nagain2Malcolm McLean
12 Jun 24 i `- Mac users (Was: Baby X is bor nagain)1Kenny McCormack
11 Jun 24 +* Re: Baby X is bor nagain4Ben Bacarisse
11 Jun 24 i`* Re: Baby X is bor nagain3Malcolm McLean
12 Jun 24 i `* Re: Baby X is bor nagain2Ben Bacarisse
12 Jun 24 i  `- Re: Baby X is bor nagain1Malcolm McLean
11 Jun 24 +* Re: Baby X is bor nagain313Bonita Montero
11 Jun 24 i+* Re: Baby X is bor nagain309Malcolm McLean
12 Jun 24 ii`* Re: Baby X is bor nagain308Bonita Montero
12 Jun 24 ii +* Re: Baby X is bor nagain305David Brown
12 Jun 24 ii i+* Re: Baby X is bor nagain2Malcolm McLean
12 Jun 24 ii ii`- Re: Baby X is bor nagain1David Brown
12 Jun 24 ii i+- Re: Baby X is bor nagain1Bonita Montero
12 Jun 24 ii i`* Re: Baby X is bor nagain301bart
12 Jun 24 ii i +* Re: Baby X is bor nagain4Bonita Montero
12 Jun 24 ii i i`* Re: Baby X is bor nagain3bart
12 Jun 24 ii i i `* Re: Baby X is bor nagain2Bonita Montero
12 Jun 24 ii i i  `- Re: Baby X is bor nagain1bart
12 Jun 24 ii i `* Re: Baby X is bor nagain296David Brown
12 Jun 24 ii i  `* Re: Baby X is bor nagain295Michael S
13 Jun 24 ii i   +- Re: Baby X is bor nagain1Malcolm McLean
13 Jun 24 ii i   `* Re: Baby X is bor nagain293David Brown
13 Jun 24 ii i    +* Re: Baby X is bor nagain5bart
13 Jun 24 ii i    i+* Re: Baby X is bor nagain3tTh
13 Jun 24 ii i    ii`* Re: Baby X is bor nagain2bart
14 Jun 24 ii i    ii `- Re: Baby X is bor nagain1Bonita Montero
13 Jun 24 ii i    i`- Re: Baby X is bor nagain1Michael S
13 Jun 24 ii i    `* Re: Baby X is bor nagain287Michael S
14 Jun 24 ii i     +* Re: Baby X is bor nagain3David Brown
14 Jun 24 ii i     i`* Re: Baby X is bor nagain2bart
15 Jun 24 ii i     i `- Re: Baby X is bor nagain1David Brown
17 Jun 24 ii i     `* Re: Baby X is bor nagain283James Kuyper
17 Jun 24 ii i      +* Re: Baby X is bor nagain86Kaz Kylheku
17 Jun 24 ii i      i+- Are Javascript and Python similarly slow ? (Was: Baby X is bor nagain)1Michael S
17 Jun 24 ii i      i+* Re: Baby X is bor nagain2Michael S
18 Jun 24 ii i      ii`- Re: Baby X is bor nagain1Tim Rentsch
17 Jun 24 ii i      i+* Re: Baby X is bor nagain80David Brown
18 Jun 24 ii i      ii`* Re: Baby X is bor nagain79Michael S
18 Jun 24 ii i      ii `* Re: Baby X is bor nagain78David Brown
18 Jun 24 ii i      ii  +* Re: Baby X is bor nagain7bart
18 Jun 24 ii i      ii  i`* Re: Baby X is bor nagain6David Brown
18 Jun 24 ii i      ii  i +* Re: Baby X is bor nagain2bart
18 Jun 24 ii i      ii  i i`- Re: Baby X is bor nagain1David Brown
18 Jun 24 ii i      ii  i `* Re: Baby X is bor nagain3DFS
18 Jun 24 ii i      ii  i  `* Re: Baby X is bor nagain2Mark Bourne
18 Jun 24 ii i      ii  i   `- Re: Baby X is bor nagain1DFS
18 Jun 24 ii i      ii  +* Re: Baby X is bor nagain3Malcolm McLean
18 Jun 24 ii i      ii  i+- Re: Baby X is bor nagain1David Brown
18 Jun 24 ii i      ii  i`- Re: Baby X is bor nagain1Mark Bourne
18 Jun 24 ii i      ii  `* Re: Baby X is bor nagain67Michael S
18 Jun 24 ii i      ii   +* Re: Baby X is bor nagain65Malcolm McLean
19 Jun 24 ii i      ii   i+* Re: Baby X is bor nagain59Keith Thompson
19 Jun 24 ii i      ii   ii`* Re: Baby X is bor nagain58Malcolm McLean
19 Jun 24 ii i      ii   ii +* Re: Baby X is bor nagain56David Brown
19 Jun 24 ii i      ii   ii i`* Re: Baby X is bor nagain55Malcolm McLean
19 Jun 24 ii i      ii   ii i `* Re: Baby X is bor nagain54David Brown
19 Jun 24 ii i      ii   ii i  `* Re: Baby X is bor nagain53Malcolm McLean
19 Jun 24 ii i      ii   ii i   +* Re: Baby X is bor nagain10bart
20 Jun 24 ii i      ii   ii i   i`* Re: Baby X is bor nagain9David Brown
20 Jun 24 ii i      ii   ii i   i `* Re: Baby X is bor nagain8bart
20 Jun 24 ii i      ii   ii i   i  `* Re: Baby X is bor nagain7David Brown
20 Jun 24 ii i      ii   ii i   i   `* Re: Baby X is bor nagain6bart
20 Jun 24 ii i      ii   ii i   i    +* Re: Baby X is bor nagain2Michael S
20 Jun 24 ii i      ii   ii i   i    i`- Re: Baby X is bor nagain1bart
20 Jun 24 ii i      ii   ii i   i    `* Re: Baby X is bor nagain3David Brown
21 Jun 24 ii i      ii   ii i   i     `* Re: Baby X is bor nagain2bart
21 Jun 24 ii i      ii   ii i   i      `- Re: Baby X is bor nagain1David Brown
20 Jun 24 ii i      ii   ii i   `* Re: Baby X is bor nagain42David Brown
20 Jun 24 ii i      ii   ii i    `* Re: Baby X is bor nagain41Malcolm McLean
20 Jun 24 ii i      ii   ii i     +- Re: Baby X is bor nagain1David Brown
20 Jun 24 ii i      ii   ii i     `* Re: Baby X is bor nagain39Ben Bacarisse
20 Jun 24 ii i      ii   ii i      +* Re: Baby X is bor nagain2Malcolm McLean
20 Jun 24 ii i      ii   ii i      i`- Re: Baby X is bor nagain1Ben Bacarisse
20 Jun 24 ii i      ii   ii i      +* Re: Baby X is bor nagain9Tim Rentsch
20 Jun 24 ii i      ii   ii i      i`* Re: Baby X is bor nagain8Malcolm McLean
20 Jun 24 ii i      ii   ii i      i +* Re: Baby X is bor nagain2James Kuyper
20 Jun 24 ii i      ii   ii i      i i`- Re: Baby X is bor nagain1Keith Thompson
20 Jun 24 ii i      ii   ii i      i +- Re: Baby X is bor nagain1Vir Campestris
20 Jun 24 ii i      ii   ii i      i +* Re: Baby X is bor nagain2Keith Thompson
21 Jun 24 ii i      ii   ii i      i i`- Re: Baby X is bor nagain1vallor
21 Jun 24 ii i      ii   ii i      i +- Re: Baby X is bor nagain1Tim Rentsch
21 Jun 24 ii i      ii   ii i      i `- Re: Baby X is bor nagain1David Brown
20 Jun 24 ii i      ii   ii i      `* Re: Baby X is bor nagain27Keith Thompson
20 Jun 24 ii i      ii   ii i       `* Re: Baby X is bor nagain26Ben Bacarisse
20 Jun 24 ii i      ii   ii i        +* Re: Baby X is bor nagain2Michael S
21 Jun 24 ii i      ii   ii i        i`- Re: Baby X is bor nagain1Ben Bacarisse
20 Jun 24 ii i      ii   ii i        +- Re: Baby X is bor nagain1Keith Thompson
21 Jun 24 ii i      ii   ii i        +* Re: Baby X is bor nagain2James Kuyper
21 Jun 24 ii i      ii   ii i        i`- Re: Baby X is bor nagain1Keith Thompson
22 Jun 24 ii i      ii   ii i        `* Re: Baby X is bor nagain20Tim Rentsch
23 Jun 24 ii i      ii   ii i         `* Re: Baby X is bor nagain19Ben Bacarisse
23 Jun 24 ii i      ii   ii i          +* Re: Baby X is bor nagain9James Kuyper
23 Jun 24 ii i      ii   ii i          i`* Re: Baby X is bor nagain8Tim Rentsch
24 Jun 24 ii i      ii   ii i          i +* Re: Baby X is bor nagain4Ben Bacarisse
24 Jun 24 ii i      ii   ii i          i i`* Re: Baby X is bor nagain3Tim Rentsch
25 Jun 24 ii i      ii   ii i          i i `* Re: Baby X is bor nagain2Ben Bacarisse
25 Jun 24 ii i      ii   ii i          i i  `- Re: Baby X is bor nagain1Tim Rentsch
24 Jun 24 ii i      ii   ii i          i `* Re: Baby X is bor nagain3Keith Thompson
24 Jun 24 ii i      ii   ii i          i  `* Re: Baby X is bor nagain2Tim Rentsch
23 Jun 24 ii i      ii   ii i          `* Re: Baby X is bor nagain9Tim Rentsch
19 Jun 24 ii i      ii   ii `- Re: Baby X is bor nagain1Keith Thompson
19 Jun 24 ii i      ii   i`* Re: Baby X is bor nagain5David Brown
19 Jun 24 ii i      ii   `- Re: Baby X is bor nagain1David Brown
18 Jun 24 ii i      i+- Re: Baby X is bor nagain1James Kuyper
20 Jun 24 ii i      i`- Re: Baby X is bor nagain1Vir Campestris
17 Jun 24 ii i      +* Re: Baby X is bor nagain193bart
17 Jun 24 ii i      `* Re: Baby X is bor nagain3Malcolm McLean
12 Jun 24 ii `* Topicality is not your strong suit (Was: Baby X is bor nagain)2Kenny McCormack
11 Jun 24 i`* Re: Baby X is bor nagain3bart
11 Jun 24 `- Re: Baby X is bor nagain1Kalevi Kolttonen

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