Am 31.08.2023 um 17:25 schrieb Muttley@dastardlyhq.com:

> I don't even understand why C/C++ allows comma seperation of calls in a block.

I think you would change the world that there are less annoyances for
you.

On Thu, 31 Aug 2023 17:32:15 +0200
Bonita Montero <Bonita.Montero@gmail.com> wrote:
>Writing performant code is part of my job. I write software for high
>frequency trading, so you have to think about which constructs result
>in which code and how efficient it is.

HFC is far more impacted by network delays than any minor inefficiencies in
the software. Its highly I/O bound.

Am 31.08.2023 um 17:44 schrieb Muttley@dastardlyhq.com:

> HFC is far more impacted by network delays than any minor inefficiencies in
> the software. Its highly I/O bound.

Read the Wikipedia article about HFC then you won't need to elaborate
everything by your own ideas.

Bonita Montero <Bonita.Montero@gmail.com> writes:
>Am 31.08.2023 um 16:43 schrieb Scott Lurndal:
>
>> cfront used to generate extensive comma laden expressions. It did
>> cause problems with PCC's temporary register allocation algorithms
>> that I had to fix back around 1989.
>
>There's for sure no compiler that generates different code whether
>you youse individual ;-separated statements or one comma-separated
>statement as both are sequence points.
>

Are you familiar with the term non-sequitur?

I don't believe code generation was ever referred to in the post
you replied to, and therefore your reply is non-responsive.

Bonita Montero <Bonita.Montero@gmail.com> writes:
>Am 31.08.2023 um 17:25 schrieb Muttley@dastardlyhq.com:
>
>> I don't even understand why C/C++ allows comma seperation of calls in a block.
>
>I think you would change the world that there are less annoyances for
>you.
>

pot kettle black

Bonita Montero <Bonita.Montero@gmail.com> writes:

> I just benchmarked my code with an upper bound of 1E3 against your code
> on a Skylake CPU with g++ 12 and -march=native. My code runs about 0.9s,
> your code takes 5.26s. Any questions ?

Is the 1E3 a typo? And if not, does it mean 1000 as I would interpret
it? A prime sieve up to 1000 should be almost un-measurably fast.

--
Ben.

Am 31.08.2023 um 22:33 schrieb Ben Bacarisse:
> Bonita Montero <Bonita.Montero@gmail.com> writes:
>
>> I just benchmarked my code with an upper bound of 1E3 against your code
>> on a Skylake CPU with g++ 12 and -march=native. My code runs about 0.9s,
>> your code takes 5.26s. Any questions ?
>
> Is the 1E3 a typo?

Yes, 1E8.

On Thu, 31 Aug 2023 17:50:24 +0200
Bonita Montero <Bonita.Montero@gmail.com> wrote:
>Am 31.08.2023 um 17:44 schrieb Muttley@dastardlyhq.com:
>
>> HFC is far more impacted by network delays than any minor inefficiencies in
>> the software. Its highly I/O bound.
>
>Read the Wikipedia article about HFC then you won't need to elaborate
>everything by your own ideas.

I worked in finance for almost 10 years and was involved in writing the
network layer to link a particular bank to a number of stock exchanges so
I do know what I'm talking about. The microsecond delays in software are
statistical noise compared to the millisecond delays on network connections.

Am 01.09.2023 um 12:26 schrieb Muttley@dastardlyhq.com:

> I worked in finance for almost 10 years and was involved in writing the
> network layer to link a particular bank to a number of stock exchanges so
> I do know what I'm talking about. ...

Certainly not. With high freqency trading sometimes even FPGAs and
overclocked CPUs are used. You can verify that easily. My employer
has a server with a server attached to a switch which has a further
10GbE link to the worlds largest internet exchange (DE-CIX). We're
250km away from Frankfurt, where the DE-CIX resudes.

On Fri, 1 Sep 2023 12:59:53 +0200
Bonita Montero <Bonita.Montero@gmail.com> wrote:
>Am 01.09.2023 um 12:26 schrieb Muttley@dastardlyhq.com:
>
>> I worked in finance for almost 10 years and was involved in writing the
>> network layer to link a particular bank to a number of stock exchanges so
>> I do know what I'm talking about. ...
>
>Certainly not. With high freqency trading sometimes even FPGAs and
>overclocked CPUs are used. You can verify that easily. My employer

So what? Network delays are still 99.9% of any delay in the process. If people
are using those then thats probably for real time processing of market status,
not for spot trading. Not that it'll do them any good. People having been
trying to write algorithms to predict the market almost since computers were
invented and none of them have succeeded to any great extent.

>has a server with a server attached to a switch which has a further
>10GbE link to the worlds largest internet exchange (DE-CIX). We're
>250km away from Frankfurt, where the DE-CIX resudes.

And?

Am 01.09.2023 um 14:30 schrieb Muttley@dastardlyhq.com:

> So what? Network delays are still 99.9% of any delay in the process.

You make up your own mind instead of reading Wikipedia.

On Fri, 1 Sep 2023 15:33:46 +0200
Bonita Montero <Bonita.Montero@gmail.com> wrote:
>Am 01.09.2023 um 14:30 schrieb Muttley@dastardlyhq.com:
>
>> So what? Network delays are still 99.9% of any delay in the process.
>
>You make up your own mind instead of reading Wikipedia.

I think my first hand experience actually working on these systems trumps
anything in wikipedia, but hey, what would I know compared to a genius like you.

Am 01.09.2023 um 15:49 schrieb Muttley@dastardlyhq.com:
> On Fri, 1 Sep 2023 15:33:46 +0200
> Bonita Montero <Bonita.Montero@gmail.com> wrote:
>> Am 01.09.2023 um 14:30 schrieb Muttley@dastardlyhq.com:
>>
>>> So what? Network delays are still 99.9% of any delay in the process.
>>
>> You make up your own mind instead of reading Wikipedia.
>
> I think my first hand experience actually working on these systems trumps
> anything in wikipedia, but hey, what would I know compared to a genius like you.
>

I guess youre not professionally programming at all
according to the n00b-questions you ask for sometimes.

On Fri, 1 Sep 2023 15:59:55 +0200
Bonita Montero <Bonita.Montero@gmail.com> wrote:
>Am 01.09.2023 um 15:49 schrieb Muttley@dastardlyhq.com:
>> On Fri, 1 Sep 2023 15:33:46 +0200
>> Bonita Montero <Bonita.Montero@gmail.com> wrote:
>>> Am 01.09.2023 um 14:30 schrieb Muttley@dastardlyhq.com:
>>>
>>>> So what? Network delays are still 99.9% of any delay in the process.
>>>
>>> You make up your own mind instead of reading Wikipedia.
>>
>> I think my first hand experience actually working on these systems trumps
>> anything in wikipedia, but hey, what would I know compared to a genius like
>you.
>>
>
>I guess youre not professionally programming at all
>according to the n00b-questions you ask for sometimes.

"n00b"? Wow, you're so L33t.

The fact that you believe no ones experience except yours counts for anything
says a whole lot about you and its not good.

Am 01.09.2023 um 16:03 schrieb Muttley@dastardlyhq.com:

> The fact that you believe no ones experience except yours counts
> for anything says a whole lot about you and its not good.

No, you constantly feel offended by statements from me that you
always have to go one step further. That you should have done the
same thing as me, especially in a field in which only a few work,
is simply very unlikely. It's much more likely that you'll want
to put yourself above me again.

On Fri, 1 Sep 2023 16:15:09 +0200
Bonita Montero <Bonita.Montero@gmail.com> wrote:
>Am 01.09.2023 um 16:03 schrieb Muttley@dastardlyhq.com:
>
>> The fact that you believe no ones experience except yours counts
>> for anything says a whole lot about you and its not good.
>
>No, you constantly feel offended by statements from me that you
>always have to go one step further. That you should have done the

I simply comment on your code and yes, sarcastically if I think it merits it.
If you don't want people commenting on your code then don't bloody post it!
Unless you only want the fawning adulation you clearly think you deserve but
you can forget about that pal.

Am 01.09.2023 um 16:39 schrieb Muttley@dastardlyhq.com:

> If you don't want people commenting on your code then don't bloody post it!

You don't even read it as seen from that you noticed my usage
of the comma-oerator very late.
And according to your n00b C++ questions you don't understand it.

On Fri, 1 Sep 2023 16:59:21 +0200
Bonita Montero <Bonita.Montero@gmail.com> wrote:
>Am 01.09.2023 um 16:39 schrieb Muttley@dastardlyhq.com:
>
>> If you don't want people commenting on your code then don't bloody post it!
>
>You don't even read it as seen from that you noticed my usage
>of the comma-oerator very late.

First time I bothered to look. I won't be bothering again.

>And according to your n00b C++ questions you don't understand it.

Whatever you say genius.

Am 01.09.2023 um 17:01 schrieb Muttley@dastardlyhq.com:
> On Fri, 1 Sep 2023 16:59:21 +0200
> Bonita Montero <Bonita.Montero@gmail.com> wrote:
>> Am 01.09.2023 um 16:39 schrieb Muttley@dastardlyhq.com:
>>
>>> If you don't want people commenting on your code then don't bloody post it!
>>
>> You don't even read it as seen from that you noticed my usage
>> of the comma-oerator very late.
>
> First time I bothered to look. I won't be bothering again.

Exactly what I said: you comment my code without having read it.

>> And according to your n00b C++ questions you don't understand it.

> Whatever you say genius.

I'm just calm, sane and intelligent.

On Fri, 1 Sep 2023 17:05:03 +0200
Bonita Montero <Bonita.Montero@gmail.com> wrote:
>Am 01.09.2023 um 17:01 schrieb Muttley@dastardlyhq.com:
>> On Fri, 1 Sep 2023 16:59:21 +0200
>> Bonita Montero <Bonita.Montero@gmail.com> wrote:
>>> Am 01.09.2023 um 16:39 schrieb Muttley@dastardlyhq.com:
>>>
>>>> If you don't want people commenting on your code then don't bloody post it!
>
>>>
>>> You don't even read it as seen from that you noticed my usage
>>> of the comma-oerator very late.
>>
>> First time I bothered to look. I won't be bothering again.
>
>Exactly what I said: you comment my code without having read it.
>
>>> And according to your n00b C++ questions you don't understand it.
>
>> Whatever you say genius.
>
>I'm just calm, sane and intelligent.

A psychology student could write their thesis about you.

Am 01.09.2023 um 17:08 schrieb Muttley@dastardlyhq.com:
> On Fri, 1 Sep 2023 17:05:03 +0200
> Bonita Montero <Bonita.Montero@gmail.com> wrote:
>> Am 01.09.2023 um 17:01 schrieb Muttley@dastardlyhq.com:
>>> On Fri, 1 Sep 2023 16:59:21 +0200
>>> Bonita Montero <Bonita.Montero@gmail.com> wrote:
>>>> Am 01.09.2023 um 16:39 schrieb Muttley@dastardlyhq.com:
>>>>
>>>>> If you don't want people commenting on your code then don't bloody post it!
>>
>>>>
>>>> You don't even read it as seen from that you noticed my usage
>>>> of the comma-oerator very late.
>>>
>>> First time I bothered to look. I won't be bothering again.
>>
>> Exactly what I said: you comment my code without having read it.
>>
>>>> And according to your n00b C++ questions you don't understand it.
>>
>>> Whatever you say genius.
>>
>> I'm just calm, sane and intelligent.
>
> A psychology student could write their thesis about you.
>

Not at all, I just feel good.