In response to Ryan Novosielski <[EMAIL PROTECTED]>: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > Though there are probably 10-20 performance pitfalls, the two big problems > > of > > performance that I have seen are: > > > > - Poorly tuned Catalog database -- insertion of Bacula attributes in the > > database tends to be slow. There are probably 5 or ten reasons leading to > > poor DB performance. I'll be working on improving this and documenting it > > over the next 6-9 months. A good part of what you can do is written in the > > manual (Catalog Maintenance chapter). The rest appeared on this list within > > the last month. > > > > - A switch (mostly 3Com switches in my experience) that run in half-duplex > > mode, which slows network traffic down by about a factor of 10. > > Cisco does this just as often, if not more often. A little surprising to > find that the top 2 can't seem to compete on the same level as a D-Link > switch from Radio Shack. ;)
If you read Cisco's docs, they make the claim that these problems are per-spec. My understanding of the argument is that if you manually set the speed and duplex, you have disabled auto-negotiation. If the other end tries to auto-negotiate, it will be able to detect the speed, just by dumb luck of how the protocol works, but it will _consistently_ mis- detect the duplex, again because of dumb luck of the protocol Their argument seems to be that this behaviour is per the specs. If a D-Link does it differently, then D-Link is doing it "wrong", even if it's doing it more intuitively. If Cisco is correct, then it would seem as if the spec were written poorly. -- Bill Moran Collaborative Fusion Inc. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
