Here's a note I posted to this list a while ago. Perhaps it is relevant to your problem.
I ended up changing the "push" bit timeout from 200ms to 50ms on my AIX server. That sped up job transfer by a factor of four.
-Rick
Rick Cochran wrote: > Here's a good one. > > Due to a performance problem with Samba, I encouraged all my users to > switch to Microsoft's WinXP LPR, only to find that it was taking a > factor of five longer to send print jobs to the server. Here's what's > happening: > > An LPR transfer from Linux consists of a steady stream of packets with > 1460 data bytes each. > > An LPR transfer from WinXP LPR consists of groups of 21 packets with > 1460 bytes followed by a packet of 1340 bytes with the "push" bit set > (total bytes = 30,000). The server responds to the "push" bit by > waiting .2 seconds before sending an "ack". All these waits slow the > transfer down by a factor of 5 (on a 10Mb net). > > This is covered in http://support.microsoft.com/?kbid=816627 (ie. "Be > happy, it used to be worse"). > > I would like a high quality alternative to Microsoft's LPR. Since our > out-of-band Kerberos authentication method is likely to go away soon > (because of NATs), I would _really_ like to have Kerberized LPR. > > Any suggestions?
-- |Rick Cochran phone: 607-255-7618| |Cornell CIT - Systems & Operations - Net-Print FAX: 607-255-8521| |730 Rhodes Hall, Ithaca, N.Y. 14853 email: [EMAIL PROTECTED]|
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