Re: flexfax: Priority running too high.

[Tim Rice <tim@trr.metro.NET>]

On Tue, 2 Jun 1998, Matthias Apitz wrote:

> Tim Rice wrote:
>     
>     On Mon, 1 Jun 1998, Jim Whitby wrote:
>     
>     > David Woolley wrote:
>     > > 
>     > > > Anyone have any suggestions?
>     > > > More info required, please, let me know.
>     > > 
>     > > Leave it at its current priority - the actual fax protocol is very
>     > > time critical.
>     > 
>     > Normaly I would, but *anything* that requires 100% cpu time is too much.
>     > For a maichne that is idling at less that 5% to jump to 100% and not be
>     > doing anything is too much priority.
>     > 
>     
>     It's not a priority issue. It's correctly set to run at "Fixed Class" 
>     priority. 
>     
>     Are you on UnixWare 2.1.3?
>     
>     I just upgraded to 2.1.3 and now my faxgetty takes 50% of the available
>     CPU time as reported by "ps -A -ouser,pid,ppid,pcpu,vsz,time,tty,args".
>     
>     Truss(1) shows pages of
>     read(1, 0x080473DC, 2047)                       = 0
>     poll(0x08045BC4, 2, -1)                         = 1
>     read(1, 0x080473DC, 2047)                       = 0
>     poll(0x08045BC4, 2, -1)                         = 1
>     read(1, 0x080473DC, 2047)                       = 0
>     poll(0x08045BC4, 2, -1)                         = 1
> 
> looks like the common CONFIG_OPENFIFO problem (but never saw this
> in faxgetty(1M) before); what is fd 1 for a file?

I couldn't find an open() on fid 1 in the truss output so I guess it's stdout.

I recompiled with  ./configure --with-CONFIG_OPENFIFO=O_RDWR
and it seems to work again.

> 
> 	matthias
>     
>     With faxgetty running rtpm(1M) shows 
>           CPU:
>         100 %u+s
>           0 %w+i
>          54 %usr
>          46 %sys
>           0 %wio
>           0 %idl
>     
>     With no faxgetty.
>           CPU:
>           1 %u+s
>          99 %w+i
>           1 %usr
>           0 %sys
>           0 %wio
>          99 %idl
>     
>     I hate it when OS upgrades break things. It worked good on 2.1.2
>     I'm going to recompile HylaFAX from scratch to see if that makes any
>     difference.
>     
>     --
>     Tim Rice			Multitalents	(707) 887-1469 (voice)
>     tim@trr.metro.net
> 

--
Tim Rice			Multitalents	(707) 887-1469 (voice)
tim@trr.metro.net