Performance v6 vs v5?

[dagar]

I am curious on zimbra performance for v6 vs v5 on same hardware? Planning an upgrade soon and don't want to be surprised that there is a performance hit. (would actually hope it is faster)
My environment is (RHEL4 X86_64 Zimbra 5.0.19) 65 users most using the ajax interface, about 5 smart phones, but doing about 3,500 emails/day and some users are complaining at times about a couple of sec wait switching between folders/sending receiving emails, ...
What experiences have you all had?
Derek

[ewilen]

We recently upgraded from ZCS 5.0.20 NE to 6.0.5, under the same OS as you. I don't have our server specs in front of me but if I recall correctly it's a dual-core Xeon running at 1.86 Ghz with 8 Gigs of RAM and 10,000 RPM SAS drives configured as RAID 10. Not sure how our mail volumes compare to yours.

After the upgrade I haven't had any complaints. The one thing to really watch out for is the change in how zmbackup works--it defaults to zipping the backups which means your full backups are going to be much bigger and take longer than was the default for v5.

[uxbod]

You do need to remember that if using the Ajax ZWC then a lot of the processing is happening on the clients end; lazy loading etc. Thus if they are hammering their own workstations, or the workstation is a low spec, at times they may see little time glitches.

[dave_kempe]

Originally Posted by uxbod

You do need to remember that if using the Ajax ZWC then a lot of the processing is happening on the clients end; lazy loading etc. Thus if they are hammering their own workstations, or the workstation is a low spec, at times they may see little time glitches.

yeah google chrome is noticeably faster in this regard.

[vavai]

In my experience, ZCS 6 need a higher specification than the previous version. I'm using Zimbra 5.0.22 on some site and others using ZCS 6.0.5 with similar HW specification. The 6.0.5 version looks a bit slower than 5.0.22 on same hardware.

I would suggest to increased HW spec or disable unused service to pick the best performance.