> I think you're getting confused between encryption and authentication.
That's entirely possible. > If I'm reading what you wrote correctly, the slowdown can be attributed > entirely to the encryption since you did not have downstream encryption > enabled in your 4.1 install, but enabled it for your 4.2 install, which > would yield the expected results. Enabling it under 4.1 should yield the > same performance degradation. (Just trying to understand if this is the > case, or if encryption enabled on 4.2 is slower than encryption enabled on > 4.1.) That actually makes sense. I remember when I upgraded to 4.2 there was a green lock and and a red lock. I remember commenting it was holiday colors in time for the holidays. Perhaps this was just a default thing between the two versions. Thanks for the insight, Marty ----- Original Message ---- From: William Yang <[email protected]> To: marty scholes <[email protected]>; [email protected] Sent: Sat, May 1, 2010 10:12:45 PM Subject: RE: ** SOLVED ** SRSS 4.2 + OSol 124/125/126 slower than SRSS 4.1? I think you're getting confused between encryption and authentication. Under 4.1 there were 3 options, all were default off: Server Authentication Downstream Encryption (i.e. graphics data) Upstream Encryption (i.e. keyboard/mouse data) 4.2 added Client Authentication (default enabled) Neither of the authentication modes adds overhead to the running session, and both add very little overhead to session initialization. We've been running with both authentications and upstream encryption only since it has no noticeable affect on performance (keyboard/mouse data is very little when compared with graphics data). If I'm reading what you wrote correctly, the slowdown can be attributed entirely to the encryption since you did not have downstream encryption enabled in your 4.1 install, but enabled it for your 4.2 install, which would yield the expected results. Enabling it under 4.1 should yield the same performance degradation. (Just trying to understand if this is the case, or if encryption enabled on 4.2 is slower than encryption enabled on 4.1.) William Yang > -----Original Message----- > From: marty scholes [mailto:[email protected]] > Sent: Sunday, May 02, 2010 12:06 AM > To: [email protected] > Cc: [email protected] > Subject: Re: ** SOLVED ** SRSS 4.2 + OSol 124/125/126 slower than SRSS 4.1? > > William Yang wrote: > > >> I have been saying since the release of 4.2 that I see a massive, > > >> colossal, huge, monstrous, astronomical, etc. slowdown when it switches > >> into low-bandwidth mode because it tricked itself into believing that > >> it has a low speed link, but it actually has a straight unconstrained > >> 100Mb/s full duplex shot into a 1Gb/s (recently a 2Gb/s LACP) link > >> to an otherwise idle server. > > > So you've found that SRSS 4.2 with encryption is slow but SRSS 4.1 with > > encryption is not so slow? > > Unfortunately I didn't do a formal analysis. This much I know: 4.1 had > one encryption enabled (client? Server?). > > When I switched to 4.2, it was slow(er) then I enabled the other > encryption. > > Later, I disabled all encryption and authentication and now it is MUCH > better. > > Hope that helps, > Marty > > > > _______________________________________________ SunRay-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/sunray-users
