Re: [Asterisk-Users] zttest

[Damian Funnell]

Rich, did you check IRQ's?  Our zttest results didn't improve markedly 
when we did either change (IRQ's or H/T), but the problem went away 
regardless.

Other than that Digium have recommended throwing out our SCSI320 RAID 
hardware and replacing it with IDE (i.e. not SATA) kit, although 
thankfully we haven't had to make this retarded change (yet).

I would also recommend trying to disable H/T in the BIOS (rather than 
via software) as I wonder if H/T still runs on your box (but is not 
accessed by the OS), so may still be causing you grief.

D.
FFF Managed Technology Ltd
60 Cook St
P.O. 6368 Wellesley St
Auckland
t +64 9 356 2911
f +64 9 358 9070
m +64 21 415 297
w www.fff.co.nz

Rich Adamson wrote:
On May 16, 2005, at 14:37, Rich Adamson wrote:
   

Hi Waldo, it really depends on who you ask - Digium say that anything
less than 99.99% is going to result in problems, but ours  
regularly runs
at around 99.98% and we don't have any problems.

One of our boxes was running at around 99.96% and we had major issues
with the voice quality packing up from time to time.  We disabled  
hyper
threading and put the TDM400P on its own IRQ and the results came  
back
up over 99.98% (haven't had any problems since).

       

How do you disable hyper threading (what's the command and where is it
placed)?
     

If this is a Linux box, look at the kernel boot arguments in [lilo| 
grub].conf and append "noht", that disables it. My grub.conf on one  
of my boxes looks like this:

title CentOS (2.4.21-27.0.4.ELsmp)
        root (hd0,0)
        kernel /vmlinuz-2.4.21-27.0.4.ELsmp ro root=LABEL=/ noht
        initrd /initrd-2.4.21-27.0.4.ELsmp.img
   

Thanks, I added the noht, rebooted, and still get zttest results that
consistently at 99.987793%, both before and after the change. Guess 
hyper threading has nothing to do with it on this particular system.

This is a new motherboard and it doesn't indicate anything in the bios
relative to hyper threads either.
Rich
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