Hello Sam, Am 2009-07-04 08:25:15, schrieb Sam Varshavchik: > This is something that does not need a lot of raw CPU power, but could > definitely take advantage of multithreading or multiple CPUs, to reduce > the number of context switches.
Yeah, there was someone who told me, an Quad-Core Opteron with 8 Threads
per Core wold be perfect but need only the smallest (MHz) available.
> If one of those smaller machines takes a powder, you'll still be in
> business. If a single machine gives up its blue smoke, you're dead in the
> water.
I do not think to run a singel 10GE machine ;-) but having 30 or more
1GE machines make no real sense to me.
OK, customers will have 100 MBit FiperOptic @home (I know in Japon they
have 1 GBit FiberOptic at home and it is a pleasure to suf the internet
and downloading E-Mails... but most peoples do not understand, WHY
japaneses have such performance which "no-one-need") but launching the
MUA and E-Mails appear immediatle or simple even pics/flash blown
websites which take only 1-3 seconds to load is the heaven...
So, assuming that a standard "Windows-Crap-HTML-E-Mail" is 30 kByte in
size (consuming 375 kBit) you can argue, that 1 GE can handel 2800 msg/s
but in real it is a little bit different and of course, my current
mailcluster has 87.000 accounts with nearly 2.5 million legitim messages
a day.
My enterprise TDWave in the Region Ortenau/Germany has 150.000 hausholds
where more then the half has no broadband (DSL or Cable) internet
connectivity and because I have no concurence you can imagine what
happen to me...
So, I can not install 1GE machines and hope it will work... Even my
DataCenter has limited space (counting in plus the climasystem, UPS, a
1 MW power station and the two emergency generators where I have
currently only a small 250kW dinosaurier). We have only 2700m² in total
>> Using a bigger machine with 10 GBit interfaces cost me 5200 Euro but
>> then even here, the CPU would be definitivele idle, and how much memory
>> does courier-imap-proxy eat?
>
> It needs almost no memory. Once the connection gets established, all it's
> doing is copying data back and forth the two connections. That takes no
> memory at all.
OK, I will ask Sun for a suitable machine...
Thanks, Greetings and nice Day/Evening
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant
--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
<http://www.tamay-dogan.net/> Michelle Konzack
<http://www.can4linux.org/> c/o Vertriebsp. KabelBW
<http://www.flexray4linux.org/> Blumenstrasse 2
Jabber [email protected] 77694 Kehl/Germany
IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947
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