Matt McClure wrote:
Does JMeter have a ms-resolution timer or a sub-ms-resolution timer?
I'm trying to implement performance tests for a low-latency web
service. I'm using JMeter 2.3.1. My current implementation produces
a JTL file with many <sample> elements whose @t attribute is 0, 15,
16, 31. I interpret this to mean that the timer JMeter is using has
15-16 ms resolution. I see that the JMeter source code[1] once
contained a library from Vladimir Roubtsov for higher resolution
timing[2], but I didn't find any evidence in the Subversion history
that JMeter ever actually used the library. It looks like the library
was removed from the JMeter source recently[3].
Would you recommend JMeter for my needs? Can JMeter be configured for
higher-resolution timing? If JMeter isn't appropriate, what tool
would you recommend?
The timing resolution of 15ms is a restriction of Windows. If you run
Windows, you won't get any better.
If you run JMeter on another OS (I'd recommend Linux) you'll get much
finer results...
# r
--
Ronan Klyne
Business Collaborator Developer
Tel: +44 01189 028518
[EMAIL PROTECTED]
www.groupbc.com
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