> Date: Thu, 9 Mar 2006 15:21:27 +0000 (WET) > From: Hugh Sasse <[EMAIL PROTECTED]> > > On Thu, 9 Mar 2006, Gregory Hicks wrote: > > > [Hugh Sasse wrote] > > > So, I have reached the conclusion that the best thing I can do to > > > improve performance is to use the --enable-temp-drop-dir and point > > > it to a different partition from /var/spool/mail so that disk seeks > > > on both partitions may occur in parallel. Does this sound like a > > > > Point to different spindles on different I/O channels. You have > > c0t0d0s6. Use c1t0d0s6 for the temp-drop-dir. At a minimum, point to > > different spindles. > > OK, I think we only have c0t0d0s* on that machine, so I'm a bit stuck. > I thought that might be the case.
Hugh: If you have the Sun PCI SCSI board, that comes with two SCSI controllers... In any case, try and get a second drive for the temp drop dir. > > > > any POP3 daemon is going to have problem is the spool gets too large. > > > > Also enable server mode. enable caching of temp dir > > Enabling server mode is not possible given some types of client (from > my reading of the docs). I don't know all the clients people use, so > I must err on the side of caution. Or is that paranoid in 2006? I have to state that this is not the be-all, end-all of clients served, but we have a quite diverse user population here. I have found - via the school of hard knocks - that the only client that the current qpopper does NOT support is the old Z-Mail. (I finally, 10 years after the fact, got these users to upgrade to a more modern MUA... Z-Mail went out of business in 1996...) Now I have to preface this with a "YMMV", but all 'modern' pop3 clients should work with the current qpopper - including Outlook (even though I would not wish this client on my worst enemy...) > > Caching requires server mode.... > > > > > useful thing to do? What if they are on different slices of the same > > > disk -- would that make things worse (further for the heads to seek)? > > > > This WILL make things worse for just the reason you've stated. > > Thanks. I'm not au fait with disk internals, and thought that some > disks may have many heads, not just to read one cylinder at a time, > but possible several. Access time is a market (selective) pressure > on disks. Well, they DO have multiple heads, but only one arm that these heads are mounted on. Best bet is to get multiple spindles. Oh well... Regards, Gregory Hicks > > > Thank you > Hugh ------------------------------------------------------------------- I am perfectly capable of learning from my mistakes. I will surely learn a great deal today. "A democracy is a sheep and two wolves deciding on what to have for lunch. Freedom is a well armed sheep contesting the results of the decision." - Benjamin Franklin "The best we can hope for concerning the people at large is that they be properly armed." --Alexander Hamilton
