Re: [Owfs-developers] Simultaneous not working

[Mick S. <mi...@su...>]

OK I've done more testing, owhttpd was running and a web page open, I 
closed that and killed owttpd but it didn't seem to make any difference.

     From what you write it seems there's another process accessing the
    sensors concurrently. Maybe a kernel driver? Check that first.

I don't think there is anything else accessing them, lsmod|grep w1 
returned nothing but beyond that I don't know how to find out.

I just tried running a shell script
owwrite /simultaneous/temperature 1
sleep 1s
owread /uncached/Temp19/latesttemp
owread /uncached/Temp20/latesttemp
owread /uncached/Temp21/latesttemp
owread /uncached/Temp22/latesttemp
owread /uncached/Temp23/latesttemp
owread /uncached/Temp25/latesttemp
owread /uncached/Temp26/latesttemp
owread /uncached/Temp27/latesttemp
owread /uncached/Temp29/latesttemp
echo
echo 'Time ' $SECONDS

I ran it repeatedly, it mostly takes 1 to 2 seconds, but after around 40 
runs there is one that takes around 9 seconds.

I also ran some tests with Python code and more sensors, again it looks 
to be working fine, but every 110 seconds or so it takes about 4 times 
as long to read.  I looked at the timeout settings but the only one 
close to that was presence at 120, so I changed that to 10 and it made 
no difference, so it is not that.  Any ideas?

Thanks for your help guys, much appreciated.

Mick