Doug Billi wrote:
> I want my TCP client to timeout if it can't connect within 3 seconds.
Note, that if you call Connect with a host name TWSocket performs a
blocking DNS lookup that cannot be canceled. Such blocking DNS lookup
also prevents the timeout timer from working. In order to be able to
I want my TCP client to timeout if it can't connect within 3 seconds.
I've looked at the documentation, but it isn't clear how the TimeoutConnect
property should be specified (milliseconds, seconds?). After examining the
code, it looks somewhat complicated with additional properties like
Timeo
Arno,
It's should be optimized anyway because multipart/alternative
messages can be relatively large (20-30 kb of html+text+headers).
To send this message current implementation perform about
320 calls to DataNext. While optimized - only 20 calls.
For high load smtp relay it's a VERY big differe
> I perform some tests but cannot send fasten than 200 megabit/sec.
Which is pretty good performance, presumably you need more because this
is running on a hosted server with gigabyte connectivity?
> I see RFC 2821 and found what max line length can be 1000
> characters!
Not strictly relevant
Max Terentiev wrote:
> Hi Angus,
>
> I perform some tests but cannot send fasten than 200 megabit/sec.
>
> On large messages (100kb+) Looks like a bottleneck in
> SmtpCli's Data/DataNext function.
>
> I see the code and found what DataNext send message line by line.
You are right, that's indeed
Hi Angus,
I perform some tests but cannot send fasten than 200 megabit/sec.
On large messages (100kb+) Looks like a bottleneck in
SmtpCli's Data/DataNext function.
I see the code and found what DataNext send message line by line.
Since typical MIME message contains lines with max 64 characters
Doug Billi wrote:
> I've heard a lot about IOCP
> and wondered how much benefit (if any) such an implementation would
> have over standard asynchronous sockets.
I had thoughts, yes. I even wrote a little test server however
speed didn't convince me. And of course, since IOCP is Windows
only i
Thanks for the clarification, I appreciate it.
As a side note, I'm switching all of my code from Indy to ICS. The performance
benefits are already paying off. What originally motivated the change was that
the Indy code doesn't scale well at all. In just one example during my
investigation, I
> How many TSmtpCli(s) should be used inside one TThread ?
> I need to send about 4000 messages in parallel, so I need 4000
> TSmtpCli(s).
> At this time I try to use 25 TSmtpCli per Thread but see very high
> CPU usage and app interface responding this delays..
The 'app interface' could be your
Hi,
I need to implement high performance smtp relay.
I use TSmtpCli inside threads as smtp workers (SmtpCli->MultiThreaded=true,
and my own message loop).
How many TSmtpCli(s) should be used inside one TThread ?
I need to send about 4000 messages in parallel, so I need 4000 TSmtpCli
> I use TFtpClient to upload data to a FTP sites. It works if the FTP
> site has a hostname like ftp.yoursite.com
> But now I need to upload to a site with an IP address, which is
> ftp://196.211.60.155
Use the IP address alone instead of the hostname, ignore the ftp:// which
is only intended
Hi
I use TFtpClient to upload data to a FTP sites. It works if the FTP site has a
hostname like ftp.yoursite.com
But now I need to upload to a site with an IP address, which is
ftp://196.211.60.155 What happens now is it returns with an exception (11004),
and does not connect. I also tried o
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