What is best tool to measure network latency?

Question

How do you measure network latency in Windows ?

I know ping as one of the tool. Can Windows Performance monitor do it ?

Any ideas which counters should I add to measure it.

This is for SharePoint specific where we have a requirement that web server and database server have latency less than 1ms.

Less than 1ms latency? Who came up with that requirement? Did they have any justification for it or did they pick that number at random?
Joe's on the right path here, less than 1ms latency is usually only going to happen on the same switch.
even on the same switch this can get to be a tall order with kits of traffic. That's a crack-smokin requirement!
In addition, is the requirement strictly regarding the network latency or is it for end to end application latency?

jftuga · Accepted Answer · 2011-02-13 19:01:26Z

up vote 3 down vote accepted

You could try tcping to measure latency to port 80 of the sharepoint server.

tcping.exe is a small console application that operates similarly to 'ping', however it works over a tcp port.

answered Feb 13 '11 at 19:01

jftuga
3,5631924

bumbling fool · Answer 2 · 2011-02-13 17:30:40Z

I suspect you're not really interested in ICMP latency. These waterfall graphs are probably better for diagnosing where your sharepoint setup is ailing.
In general for public facing: http://www.webpagetest.org/
With FF: http://www.getfirebug.com
With IE: http://www.httpwatch.com/

2 Answers