Time.sleep(0.0125) not available within Linux

[Blubaugh, David A.]

To All,


I was wondering if anyone has come across the issue of not being allowed
to have the following within a Python script operating under Linux:

time.sleep(0.01 25)

It appears that I am not allowed to have the object sleep. Has anyone
encountered this specific issue before in the past?


Thank You,


David Blubaugh







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[Grant Edwards]

Re: Time.sleep(0.01 25) not available within Linux

On 2008-09-23, Blubaugh, David A. <dblubaugh@belc an.comwrote:

I was wondering if anyone has come across the issue of not being allowed
to have the following within a Python script operating under Linux:
>
time.sleep(0.01 25)

No, I have not. And I doubt anybody else has.

It appears that I am not allowed to have the object sleep.

It doesn't appear that way to me. Care to explain how you
arrived at that conclusion?

Has anyone encountered this specific issue before in the past?

$ python
Python 2.5.2 (r252:60911, Aug 28 2008, 15:54:48)
[GCC 4.1.2 (Gentoo 4.1.2 p1.1)] on linux2
Type "help", "copyright" , "credits" or "license" for more
information.

>>import time
>>time.sleep(0. 0125)
>>>

The above code has worked as far back as I can recall (which I
think includes Python 1.4).

--
Grant

[Lawrence D'Oliveiro]

Re: Time.sleep(0.01 25) not available within Linux

In message <__KdneWJPotDx0 XVnZ2dnUVZ_gGdn Z2d@posted.usin ternet>, Grant
Edwards wrote:

On 2008-09-23, Blubaugh, David A. <dblubaugh@belc an.comwrote:
>

>I was wondering if anyone has come across the issue of not being allowed
>to have the following within a Python script operating under Linux:
>>
>time.sleep(0.0 125)

>
No, I have not. And I doubt anybody else has.

Just a thought, your minimum sleep time is probably limited by the
resolution of the system "HZ" clock. Type

less /proc/config.gz

and search for the value of the "CONFIG_HZ" setting. On the Athlon 64
machine I'm using to write this, it's 250, which should allow for sleep
intervals in multiples of 0.004 seconds.

[Steven D'Aprano]

Re: Time.sleep(0.01 25) not available within Linux

On Wed, 24 Sep 2008 22:18:05 +1200, Lawrence D'Oliveiro wrote:

Just a thought, your minimum sleep time is probably limited by the
resolution of the system "HZ" clock. Type
>
less /proc/config.gz

$ less /proc/config.gz
/proc/config.gz: No such file or directory


What OS are you using?



--
Steven

[Lawrence D'Oliveiro]

Re: Time.sleep(0.01 25) not available within Linux

In message <00eb2560$0$206 66$c3e8da3@news .astraweb.com>, Steven D'Aprano
wrote:

On Wed, 24 Sep 2008 22:18:05 +1200, Lawrence D'Oliveiro wrote:
>

>Just a thought, your minimum sleep time is probably limited by the
>resolution of the system "HZ" clock. Type
>>
> less /proc/config.gz

>
$ less /proc/config.gz
/proc/config.gz: No such file or directory
>
>
What OS are you using?

The one named in the subject line?

[Steven D'Aprano]

Re: Time.sleep(0.01 25) not available within Linux

On Fri, 26 Sep 2008 19:46:10 +1200, Lawrence D'Oliveiro wrote:

In message <00eb2560$0$206 66$c3e8da3@news .astraweb.com>, Steven D'Aprano
wrote:
>

>On Wed, 24 Sep 2008 22:18:05 +1200, Lawrence D'Oliveiro wrote:
>>

>>Just a thought, your minimum sleep time is probably limited by the
>>resolution of the system "HZ" clock. Type
>>>
>> less /proc/config.gz

>>
>$ less /proc/config.gz
>/proc/config.gz: No such file or directory
>>
>>
>What OS are you using?

>
The one named in the subject line?

Are you asking me or telling me?


I've tried on five different Linux machines I have access to, and there
is no such /proc/config.gz on any of them:

two different versions of Centos
two versions of Fedora
one version of Ubuntu

So let me rephrase my question... what *specific* OS are you using?



--
Steven

[Lawrence D'Oliveiro]

Re: Time.sleep(0.01 25) not available within Linux

In message <pan.2008.09.26 .08.26.56@REMOV E.THIS.cybersou rce.com.au>, Steven
D'Aprano wrote:

On Fri, 26 Sep 2008 19:46:10 +1200, Lawrence D'Oliveiro wrote:
>

>In message <00eb2560$0$206 66$c3e8da3@news .astraweb.com>, Steven D'Aprano
>wrote:
>>

>>On Wed, 24 Sep 2008 22:18:05 +1200, Lawrence D'Oliveiro wrote:
>>>
>>>Just a thought, your minimum sleep time is probably limited by the
>>>resolution of the system "HZ" clock. Type
>>>>
>>> less /proc/config.gz
>>>
>>$ less /proc/config.gz
>>/proc/config.gz: No such file or directory
>>>
>>>
>>What OS are you using?

>>
>The one named in the subject line?

>
Are you asking me or telling me?
>
>
I've tried on five different Linux machines I have access to, and there
is no such /proc/config.gz on any of them:
>
two different versions of Centos
two versions of Fedora
one version of Ubuntu
>
So let me rephrase my question... what *specific* OS are you using?

<http://lxr.linux.no/linux+v2.6.26.5/kernel/configs.c#L82>

[jkn]

Re: Time.sleep(0.01 25) not available within Linux

On Sep 26, 9:26 am, Steven D'Aprano
<ste...@REMOVE. THIS.cybersourc e.com.auwrote:

On Fri, 26 Sep 2008 19:46:10 +1200, Lawrence D'Oliveiro wrote:

In message <00eb2560$0$206 66$c3e8...@news .astraweb.com>, Steven D'Aprano
wrote:

>

On Wed, 24 Sep 2008 22:18:05 +1200, Lawrence D'Oliveiro wrote:

>

>Just a thought, your minimum sleep time is probably limited by the
>resolution of the system "HZ" clock. Type

>

> less /proc/config.gz

>

$ less /proc/config.gz
/proc/config.gz: No such file or directory

>

What OS are you using?

>

The one named in the subject line?

>
Are you asking me or telling me?
>
I've tried on five different Linux machines I have access to, and there
is no such /proc/config.gz on any of them:
>

/proc/config.gz is not directly connected with a specific linux
distribution; it's a function of the kernel build configuration. If
the appropriate setting is enabled, then /proc/config.gz will show
(via eg. zcat) the equivalent of the .config file used to build the
kernel you are actually running. It's a useful feature in all linuces,
going back quite a way IIRC.

J^n

[Grant Edwards]

Re: Time.sleep(0.01 25) not available within Linux

On 2008-09-26, Lawrence D'Oliveiro <ldo@geek-central.gen.new _zealandwrote:

In message <00eb2560$0$206 66$c3e8da3@news .astraweb.com>, Steven D'Aprano
wrote:
>

>On Wed, 24 Sep 2008 22:18:05 +1200, Lawrence D'Oliveiro wrote:
>>

>>Just a thought, your minimum sleep time is probably limited by the
>>resolution of the system "HZ" clock. Type
>>>
>> less /proc/config.gz

>>
>$ less /proc/config.gz
>/proc/config.gz: No such file or directory
>>
>>
>What OS are you using?

>
The one named in the subject line?

Never assume somebody reading the article and attempting to
help you can see the subject line.

--
Grant Edwards grante Yow! I'm encased in the
at lining of a pure pork
visi.com sausage!!

[Edel SM]

Re: Time.sleep(0.01 25) not available within Linux

helllo,

On Fri, Sep 26, 2008 at 3:46 PM, Lawrence D'Oliveiro
<ldo@geek-central.gen.new _zealandwrote:

In message <00eb2560$0$206 66$c3e8da3@news .astraweb.com>, Steven D'Aprano
wrote:
>

>On Wed, 24 Sep 2008 22:18:05 +1200, Lawrence D'Oliveiro wrote:
>>

>>Just a thought, your minimum sleep time is probably limited by the
>>resolution of the system "HZ" clock. Type
>>>
>> less /proc/config.gz

>>
>$ less /proc/config.gz
>/proc/config.gz: No such file or directory
>>

or: less /boot/config-`uname -r`

>>
>What OS are you using?

>
The one named in the subject line?
--

http://mail.python.org/mailman/listinfo/python-list

>

--
edel

[Lawrence D'Oliveiro]

Re: Time.sleep(0.01 25) not available within Linux

In message <Qtmdndz1gYzQnk DVnZ2dnUVZ_szin Z2d@posted.visi >, Grant Edwards
wrote:

Never assume somebody reading the article and attempting to
help you can see the subject line.

Why not?

[Grant Edwards]

Re: Time.sleep(0.01 25) not available within Linux

On 2008-09-26, Lawrence D'Oliveiro <ldo@geek-central.gen.new _zealandwrote:

In message <Qtmdndz1gYzQnk DVnZ2dnUVZ_szin Z2d@posted.visi >, Grant Edwards
wrote:
>

>Never assume somebody reading the article and attempting to
>help you can see the subject line.

>
Why not?

Because it might not be. It depends on the user's newsreader
and editor settings. Assuming the reader can't see the subject
line while reading the article has been one of the basic rules
of Usenet posting for decades. At least that's what I've
always been told: make sure the body of a posting contains
sufficient information to answer the question.

--
Grant

[Lawrence D'Oliveiro]

Re: Time.sleep(0.01 25) not available within Linux

In message <dZOdnT0NKORdEE DVnZ2dnUVZ_rvin Z2d@posted.usin ternet>, Grant
Edwards wrote:

On 2008-09-26, Lawrence D'Oliveiro <ldo@geek-central.gen.new _zealand>
wrote:

>In message <Qtmdndz1gYzQnk DVnZ2dnUVZ_szin Z2d@posted.visi >, Grant Edwards
>wrote:
>>

>>Never assume somebody reading the article and attempting to
>>help you can see the subject line.

>>
>Why not?

>
Because it might not be. It depends on the user's newsreader
and editor settings.

So, should I not assume that they can see the content as well, because it
might not be visible, depending on the user's newsreader and editor
settings?

[Grant Edwards]

Re: Time.sleep(0.01 25) not available within Linux

On 2008-09-27, Lawrence D'Oliveiro <ldo@geek-central.gen.new _zealandwrote:

In message <dZOdnT0NKORdEE DVnZ2dnUVZ_rvin Z2d@posted.usin ternet>, Grant
Edwards wrote:
>

>On 2008-09-26, Lawrence D'Oliveiro <ldo@geek-central.gen.new _zealand>
>wrote:

>>In message <Qtmdndz1gYzQnk DVnZ2dnUVZ_szin Z2d@posted.visi >, Grant Edwards
>>wrote:
>>>
>>>Never assume somebody reading the article and attempting to
>>>help you can see the subject line.
>>>
>>Why not?

>>
>Because it might not be. It depends on the user's newsreader
>and editor settings.

>
So, should I not assume that they can see the content as well,
because it might not be visible, depending on the user's
newsreader and editor settings?

Thats seems like a bit of reductio ad absurdum. My
observations over the years confirm the advice that you
shouldn't place information solely in the subject line. If you
rely on people re-reading the subject line as the read and
reply to the body of the posting, you'll often get bad results.
People will miss information that was left out of the body and
placed solely in the subject line. I've seen it happen over an
over again (this thread is an example).

If you don't care whether you get timely and accurate
responses, then do whatever you want. Otherwise, include all
the pertinent information in the body of the posting.

--
Grant

[Gabriel Genellina]

Re: Time.sleep(0.01 25) not available within Linux

En Sat, 27 Sep 2008 01:46:45 -0300, Lawrence D'Oliveiro
<ldo@geek-central.gen.new _zealandescribi ó:

In message <dZOdnT0NKORdEE DVnZ2dnUVZ_rvin Z2d@posted.usin ternet>, Grant
Edwards wrote:

>On 2008-09-26, Lawrence D'Oliveiro <ldo@geek-central.gen.new _zealand>
>wrote:

>>In message <Qtmdndz1gYzQnk DVnZ2dnUVZ_szin Z2d@posted.visi >, Grant
>>Edwards wrote:
>>>
>>>Never assume somebody reading the article and attempting to
>>>help you can see the subject line.
>>>
>>Why not?

>>
>Because it might not be. It depends on the user's newsreader
>and editor settings.

>
So, should I not assume that they can see the content as well, because it
might not be visible, depending on the user's newsreader and editor
settings?

Of course not. But the space allowed for the subject line may be limited -
body usually wraps, but subject might not. Add a few Re: Rv: at the start
and even fewer characters are displayed.
I currently see the subject line shortened at: available wi...

--
Gabriel Genellina