| Title: | Lotus Notes |
| Moderator: | CPDEV::DOUGLAS |
| Created: | Fri Sep 24 1993 |
| Last Modified: | Thu Jun 05 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 243 |
| Total number of notes: | 878 |
AlphaServer 2100
3 x 250MHz CPUs
1GB RAM
Lotus Domino V4.5
NT 3.51
A customer is piloting this configuration to replace a 3 x Dual Pentium
Pro COMPAQ systems. They have currently turned off one of their COMPAQs
and moved the users onto the 2100, and are moving other users to the
2100 with the final goal of geting all 400 users onto a single system.
The customer reports CPU usage between 25 and 70% on the system and is
not seeing the sorts of performance improvements that they though they
were going to get. So...
- it's possible that the performance bottleneck is either network or disk
IO, I still have to get them to check it out
- is it possible that the 3 x 250 MHz is of comparable performance to 2
x PPro 200 Mhz with these applications?
- is it possible that we can keep adding users to the AlphaServer and
see no discernable degredation to performance?
The final goal for Digital (via a partner) is to sell them a dual
466MHz AlphaServer 4100.
Any and all comments appreciated
Paul
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 238.1 | doesn't sound like you have any bottlenecks yet ... | HYDRA::EGGIMANN | Tue May 27 1997 17:11 | 31 | |
Hi Paul,
It doesn't sound like you have any bottlenecks yet. Your observations sound
correct;
- it's possible that the performance bottleneck is either network or disk
IO, I still have to get them to check it out
Its highly unlikely that you'll have a network bottleneck, and unlikely
you're disk bound. What I/O configuration are you running, raid level,
number of disks in the stripe set?
- is it possible that the 3 x 250 MHz is of comparable performance to 2
x PPro 200 Mhz with these applications?
Yes, this is possible (and likely) if you're not saturing the alpha (which
you're not).
- is it possible that we can keep adding users to the AlphaServer and
see no discernable degredation to performance?
Yes, you won't see much difference on the transaction response times
between the two systems, but Alpha will differentiate by being able to
handle more users. So keep adding them ... And a 4100 466mhz system is
the right choice to give them some growth ...
Just a side note - we recently completed testing on an as1000 5/500 and we
run more users than a compaq p6/200mhz dual processor configuration (2200
-vs- 2112) indicating we have 2X as much capacity per cpu ...
Pete
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