| Title: | AlphaServer 4100 |
| Moderator: | MOVMON::DAVIS S |
| Created: | Tue Apr 16 1996 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 648 |
| Total number of notes: | 3158 |
Hi,
We will do benchmark for one of our customers. We are using
Alphaserver 4100 5/400, the configuration is :
Digital UNIX 4.0B,
One ALPHA 5/400 CPU with 4M Cache,
512M ram,
two rz28-vw hard disks (one as system disk, one as swap disk),
using kzpsc-xb with six rz29-vw disks to do raid 0+1.
We will use ORACLE to do the benchmark with twenty users.
I know how to do ORACLE performance tuning , but could you give
me some advise about how to do unix tuning ?
Thanks in advance !
Regards,
Wilson Lu
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 586.1 | There is a tuning guide in the docset... | PERFOM::HENNING | Tue May 06 1997 09:14 | 9 | |
In order from most important to least important:
step 1. Determine whether you have a CPU bottleneck, IO bottleneck, or
memory bottleneck. (For example, say "vmstat 3" and "iostat 5")
step 2. Do the Oracle tuning that you already know how to do.
step 3. Read the fine manual: System Tuning and Performance Management
and consider whether you really want to do Unix tuning...
| |||||
| 586.2 | Not so simple... | NNTPD::"[email protected]" | Dave Cherkus | Tue May 06 1997 09:18 | 15 |
It's not the kind of thing one can just pick up in a few minutes. Digital UNIX has a system performance / tuning manual in the document set. Perhaps you should read that? Also I believe Digital's education offerings cover this topic as well. But, one thing I can say is if you really do have two disks, you should consider having equally-sized swap partitions on each disk. Use the first to hold / and /usr, and the second to hold user data, and put a swap partition on each disk. This will allow the system to have two spindles to swap to, which in general improves performance. Dave [Posted by WWW Notes gateway] | |||||