|
> They instantly got us to look at the
output of zttest and we found that this was (in their words) 'extremely low',
with 'best' and > 'worst' readings of 99.975586% and
99.963379% respectively.
Might want to give PCI latency setting a try, it
helped for me. My ZTTEST would drop occasionally to 99.95% until I
set:
setpci -v -s 01:01.0 latency_timer=ff <--Digium
PRI card
setpci -v -s 01:04:0 latency_timer=ff <--Digium 401 4 X
FXS
setpci -v -s
XX:XX:X latency_timer=0 <--1 entry for every other PCI card in system from
LSPCI output, modify XX:XX accordingly
Before setpci I
would get best in ZTTEST at 99.987793% and worst ~
99.95%
After setpci best
is 100% and worst is 99.987793% consitient.
I use SpanDSP to
recieve faxes and before faxes were garbled and now they are OK (BTW,
now recieving ~150 faxes a day 99.95% OK, so SpanDSP *does* work fine, you
just have to set it up right. Ask me how.)
I put the setpci
statements in /etc/rc.d/rc.local before my modprobes to the Digium hardware and
Asterisk startup.
I'm using a 4-way
Netfinity FC2 * 1.0 stable
I dunno, maybe the
community is being too hard on Digium about the design of the card. I can
understand their perpective, it's brutal to make a card that has to have such
tight tolerances and make it work acceptably on the huge variation in white box
hardware (or black box, in your case). There's a page on the Wiki about
motherboards that work well with installation notes but that's pointless since
motherboards are such a moving target. Even the motherboard vendor screwing
around with BIOS updates can invalidate that information.
What I think is
best for Asterisk implementation is for Digium to sell a motherboard. No,
seriously. Find a ECS or Abit or ASUS mobo that consitiently yields 100% or
99.9999% and white-box it as a barebones kit with a TXXX card. Sell it as a
case, good PSU, mobo, and TXXX card - you add your own RAM, NIC, CPU & HDD.
Would you buy one for $699? I probably would. It took me a couple of months of
fooling around with my Netfinity before I was pleased with the performance and
satisfied that it would handle the things I wanted it to do without choking. If
I had the option of saving the couple of months time obsessing over things like
timing for $699, it would have been a no brainer. Digium wins too, because they
get an incremental sale that they can make money on (margin on the mobo) and
lower support costs because they don't have to chase down IRQ latency phantoms.
hth my
2c
|
_______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
