Hi, I also noticed the number of TCP connections by *ss -s *command
Whenever it goes beyond 900 then mail sending speed is 5-6 mails per second. When the connections are below 900 then the mail sending speed is 100-200. On Fri, Nov 19, 2010 at 5:50 PM, Wietse Venema <wie...@porcupine.org> wrote: > Avinash Pawar // Viva: > > Hi, > > > > I have developed PHP and MySQL web application which sending mails to > > postfix by using fsockopen command. > > > > Whenever there is no mailq then mail sending is very fast almost 1000 in > > 6-10 seconds. (i.e. it sends almost 100-200 mails per second). > > > > But whenever I send bulk mails then most of the mails are deferred and > mail > > sending speed is going slow. > > > > Can you tell me why mail sending is become slow? > > Because the hard disk is slower than anything else. All mail > processes are fighting for disk access to either create new files > or to deliver mail from old files. > > Also, some Linux distros use sychronous logfile updates that that > makes maillog updates more expensive than all of Postfix itself. > > Wietse > > > Is application connects slowly to postfix at the time of big queues on > > postfix? > > > > > > -- > > Incase of any further queries, Please feel free to mail me or contact me > on > > the numbers provided below. > > > > Thanks & Regards, > > Avinash Pawar > > Project Lead > > > > Viva Infomedia Pvt. Ltd. > > 242, Oshiwara Industrial Centre, > > Opp. Oshiwara Bus Depot, New Link Road, > > Goregaon West, Mumbai 400104. > > > > Direct: +91.22.4031 0356 > > Board: +91.22.4031 0310 > > > > Email: avin...@vivaconnect.in > > Web: www.vivaconnect.in > > > > Viva Infomedia: Awarded as Best SME (E-Commerce) at CNBC Emerging India > > Awards 2009 > > > > Disclaimer: > > This e-mail and any files transmitted with it are for the sole use of the > > intended recipient(s) and may contain confidential and privileged > > information. If you are not the intended recipient, please contact the > > sender by reply e-mail and destroy all copies and the original message. > Any > > unauthorized review, use, disclosure,dissemination, forwarding, printing > or > > copying of this email or any action taken in reliance on this e-mail is > > strictly prohibited and may be unlawful. The recipient acknowledges that > > Viva Infomedia Pvt.Ltd. or its subsidiaries and associated companies are > > unable to exercise control or ensure or guarantee the integrity of/over > the > > contents of the information contained in e-mail transmissions and further > > acknowledges that any views expressed in this message are those of the > > individual sender and no binding nature of the message shall be implied > or > > assumed unless the sender does so expressly with due authority of Viva > > Infomedia Pvt.Ltd. Before opening any attachments please check them for > > viruses and defects. > > -- Incase of any further queries, Please feel free to mail me or contact me on the numbers provided below. Thanks & Regards, Avinash Pawar Project Lead Viva Infomedia Pvt. Ltd. 242, Oshiwara Industrial Centre, Opp. Oshiwara Bus Depot, New Link Road, Goregaon West, Mumbai 400104. Direct: +91.22.4031 0356 Board: +91.22.4031 0310 Email: avin...@vivaconnect.in Web: www.vivaconnect.in Viva Infomedia: Awarded as Best SME (E-Commerce) at CNBC Emerging India Awards 2009 Disclaimer: This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies and the original message. Any unauthorized review, use, disclosure,dissemination, forwarding, printing or copying of this email or any action taken in reliance on this e-mail is strictly prohibited and may be unlawful. The recipient acknowledges that Viva Infomedia Pvt.Ltd. or its subsidiaries and associated companies are unable to exercise control or ensure or guarantee the integrity of/over the contents of the information contained in e-mail transmissions and further acknowledges that any views expressed in this message are those of the individual sender and no binding nature of the message shall be implied or assumed unless the sender does so expressly with due authority of Viva Infomedia Pvt.Ltd. Before opening any attachments please check them for viruses and defects.
