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 Performance Issue: Average Wait Time (ms)

Author  Topic 

Lijo Cheeran Joseph
Posting Yak Master

123 Posts

Posted - 2011-04-06 : 06:30:54
Hi Team,

SQL Server 2005

We have a requirement to restrict Average Wait Time (ms) to 500. When we are testing with 87 users, Average Wait Time (ms)is 415; whereas with 175 users it is 587.

How do I ensure whether it is a hardware bottleneck or query issue? (Looking for DMV and their benchmark values to prove this)
If it is a query issue, how do I list such queries?

Also, can you provide a DMV for finding the following?
Avg. Response Time on a particular database
Avg. Wait Time on a particular database
Avg. Service Time on a particular database



Further info:
Lock Waits/sec (at 87 users) = 1.76
Lock Waits/sec (at 175 users) = 9.2


Thanks
Lijo Cheeran Joseph

Sachin.Nand

2937 Posts

Posted - 2011-04-06 : 07:22:36
There is really no straight answer for this.You need to have the profiler and performance monitor set up in sync to find the queries and objects which are causing wait types.

PBUH

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