smtp-sink pipelining slow: TCP Nagle delayed ACK stalls

2011-11-17 Thread Mark Martinec
While benchmarking a SMTP content filter, using smtp-source as a traffic generator and smtp-sink as sink, the message transfer rates were much worse than expected (about 100 seconds, instead of just a few seconds for 1000 messages). It turned out the problem is in a TCP session over a loopback

Re: smtp-sink pipelining slow: TCP Nagle delayed ACK stalls

2011-11-17 Thread Wietse Venema
Mark Martinec: While benchmarking a SMTP content filter, using smtp-source as a traffic generator and smtp-sink as sink, the message transfer rates were much worse than expected (about 100 seconds, instead of just a few seconds for 1000 messages). It turned out the problem is in a TCP

Re: smtp-sink pipelining slow: TCP Nagle delayed ACK stalls

2011-11-17 Thread lst_hoe02
Zitat von Mark Martinec mark.martinec+post...@ijs.si: While benchmarking a SMTP content filter, using smtp-source as a traffic generator and smtp-sink as sink, the message transfer rates were much worse than expected (about 100 seconds, instead of just a few seconds for 1000 messages). It

Re: smtp-sink pipelining slow: TCP Nagle delayed ACK stalls

2011-11-17 Thread Wietse Venema
Wietse Venema: Mark Martinec: While benchmarking a SMTP content filter, using smtp-source as a traffic generator and smtp-sink as sink, the message transfer rates were much worse than expected (about 100 seconds, instead of just a few seconds for 1000 messages). It turned out the