On Wed, 2004-03-31 at 12:43, Suresh Ramasubramanian wrote: > a few questions - > > 1. were you doing async logging or sync logging when you tested with > syslog. plus did you try splitting off IO intensive stuff like imapd, > writing to maildirs etc to other machines (using network storage > appliances)? > async logging. I do not have the option of trying NetAPP. My storage is around 1 TB on this server on a SAN. Moving imapd, pop3d etc to another server would have definitely helped if my storage was NAS.
> 2. could you try smtp-source / smtp-sink on the same setup so that we > can just test raw performance? I can only do this once I am able to decommission this server. Currently this server is on Production and I cannot touch it. I hate this server (in fact all servers from Sun). Very costly to maintain. Should be able to do when my business starts making money :) > > > did not unbundle mails (unlike qmail). I expected this would give > > me a big performance increase over qmail because quite a lot > > That is surprising - how were your postfix and qmail queues ordered? > Given that qmail has 3 queue files whereas postfix has just one I'd > expect some rather different results. > The queue filesystem was on RAID 0 for both qmail and postfix. Was striped across multiple disks. I had done a small trick with qmail. The startup script was modified to run multiple qmail-send process on multiple queues. I had 10 different queues created for qmail, each running an instance of qmail-send process and patched up with the EXT-TODO patch. The patch coupled with multiple queues allowed qmail to ram the hard disks when there was a very high incoming rate in the mornings. > srs > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IBM Linux Tutorials > Free Linux tutorial presented by Daniel Robbins, President and CEO of > GenToo technologies. Learn everything from fundamentals to system > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click > _______________________________________________ > linux-india-help mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/linux-india-help -- Manvendra Bhangui <[EMAIL PROTECTED]> ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ linux-india-help mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/linux-india-help
