Here is an update of my topology when having problem to read correct values
from the temperature sensors.
Linux-server Linux-server WRT54G WRT54G
Owfs -> owserver -> owserver <- owfs
| |
temploggerd DS9097U with 12 DS1820.
Reading both cached and uncached values from my Linux-server's owfs only
read OLD cached values.
Reading uncached values from WRT54G's owfs return a new value and the cache
is updated. Next read from the Linux-servers owfs will return this new
value.
The problem I have noticed is probably only showing up when you have
multiple owservers connecting to eachother.
/Christian
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Christian Magnusson
Sent: den 23 december 2006 21:35
To: [email protected]
Subject: Re: [Owfs-developers] Problem with 2.5p8/CVS and DS2480B
It still seem to be some problems with the cache.
I use temploggerd to create graphs, and most of the temperature sensors
return the same value all the time now.
Some of the temperature sensors are read from multiple applications (such as
outdoor sensor which is also read uncached frequently),
and that specific sensor return correct value.
http://home.mag.cx/cgi-bin/all.temperature.rrd.cgi?params=-s-1day
Temploggerd works something like this.
loop
Write 1 to /simultaneous/temperature
Read /tmp/1wire/10.*/temperature
Create graph
Sleep 60
End loop
Do you have any idea if the cache-code still is broken in combination with
simultaneous?
/Christian
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Paul
Alfille
Sent: den 23 december 2006 14:03
To: [email protected]
Subject: Re: [Owfs-developers] Problem with 2.5p8/CVS and DS2480B
Uncached was broken! (Fixed in the CVS). Thanks for the report.
I'm not sure if your problem (Simultaneous pinning the result) is fixed too.
I'm still testing.
Paul Alfille
On 12/22/06, Simon Natterer <[EMAIL PROTECTED]> wrote:
Simon Natterer wrote:
> Paul Alfille wrote:
>
>> Powered or parasytic?
> Powered.
> Seems it is caching. Doing an uncached read returns right values.
> Afterwards cached value stuck on this value.
>
It seem like I was wrong. Reading the whole night from uncached returns
the same constant value again. The problem seems to be
/simultaneous/temperature. I wrote 1 there before reading. Removing this
makes returns changed values with cached and uncached reads.
Simon
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php
<http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV>
&p=sourceforge&CID=DEVDEV
_______________________________________________
Owfs-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/owfs-developers
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Owfs-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/owfs-developers
