Sharepoint Forum

Ask Question   UnAnswered
Home » Forum » Sharepoint       RSS Feeds

Server Latency Tool

  Asked By: Pamela    Date: Sep 06    Category: Sharepoint    Views: 1051

Has anyone used the tool "server_latency" from the SP
resource kit?

I have used it but not sure what the "normal" time or
speed should be? How do you know if your server is having
resource problems. As of right now, I get an average of
412 millseconds when running the test. Whats the norm?



1 Answer Found

Answer #1    Answered By: Khushi Srivastava     Answered On: Sep 06

I did some testing with this tool  today. Here are my results. I have two
servers, and the response times according to the ping tool basically did not

HOWEVER -- There is a *SIGNIFICANT* performance difference when browsing the
portal and accessing the webdav. Just browsing around, things "seem" twice
as fast on server  2. Initial page load (going to http://server/wksp) on
Server 1 hovers around 5 seconds whereas Server 2 is around 2.5 seconds.
Subsequent page loads or searches are similarly twice as fast on Server 2.

My users should be extremely happy once I switch these out.

Server 1: -----------------------
Dell 6300 4x450Mhz CPU
Win2k Server w/2GB RAM w/SP2
RAID1 for OS/swap, single disk for logs, RAID5 for databases
(3 separate spindles on 1 controller)
No Black Ice agent (software firewall)
400Mbps etherchannel network connection (4 NIC's)
Response times:
initial load: 225
subsequent loads: 202, 204, 200, 204, 201, 200, 204, 201

(I'm denoting each attribute below with a "+" if I think it should improve
performance over Server 1 and a "-" if I think it should reduce performance
compared with Server 1)

Server 2: -----------------------
+ Dell 6450 4x700Mhz CPU
+ Win2k Adv. Server w/5GB* RAM w/SP3
+ /3GB switch in boot.ini
- RAID1 for OS/swap, RAID1 for databases and logs
(two separate spindles on 2 separate controllers)
- Black ICE agent (software firewall)
- 100Mbps network connection
+ MaxSessions -> 90 (up from default of 40)
+ LogBuffers -> 9000 (up from default of 84)
+ CacheSizeMax -> 419430 (about 1.6GB)
+ CacheSizeMin -> 262144 (about 1GB)
Response times:
initial load: 220
subsequent loads: 198, 199, 201, 204, 202, 197, 200

Other seemingly important points to note:

- Server 2 is a msdmback restore of Server 1, about 5GB
- I also ran the ping test  while copying a 4GB file off of each
server and latency did not change according to the tool.
- Both of these are SP1. I'm about to test SP2 on Server 2
- I'm replacing Server 1 with Server 2 this weekend.
- Server 2 will have 400Mbps etherchannel
- I'm very interested in any other performance improvements
that I can apply.

* I know that Win2k can only address 4GB RAM. I learned this after I had
already put 5GB in the server. So I'll probably take the extra 1GB out.

Didn't find what you were looking for? Find more on Server Latency Tool Or get search suggestion and latest updates.