Sorry, that was a typo. Jmeter is configured with a 100 ms delay, 20 threads
:) , although the story is pretty much the same even with a 1000 ms delay.
( p.s. I also added an extra couple of fingers to the server so it could
count higher ;) )
Bob
-----Original Message-----
From: Randy Layman [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 01, 2001 3:50 PM
To: [EMAIL PROTECTED]
Subject: RE: performance
Light load? It looks to me that you are sending
1ms * 1000 ms/s * 20 threads = 20,000 requests per second to the
server. This would translate to 20K request/second * 60 seconds/min * 60
minutes/hour = 72,000,000 request per hour. Maybe I'm not understanding the
numbers you quote (I'm not familary with JMeter), but I would be suprised if
any non-clustered web server running on Intel hardware could handle 72
million hits per hour.
(Although I would also be suprised if a Microsoft operating system
could count to 72 million ;) )
Randy
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 01, 2001 4:12 PM
To: [EMAIL PROTECTED]
Subject: performance
Hi,
I know that Tomcat does not claim to strive for the performance
characteristics of other servlet containers, such as resin. However, I am
wondering just how bad the performance is. I have run some tests, and I have
been a bit surprised.
Test environment is a 4 proc NT server with 1 gig of memory. I am using
tomcat 3.2.1 running standalone, and have set the max heap size for the JVM
to be about half of physical memory, also I have the server hotspot jit
installed.. Additionally I am using Jmeter to apply some load.
With 1 Jmeter client configured with a standard delay of 1 ms and 20
threads, the website being hit becomes essentially non-responsive. Using the
same configuration, but substituting resin for tomcat, shows no noticeable
degradation in performance.
Again, I am not surprised that resin performs better, but I am surprised
that Tomcat is that much slower, with even a light load applied.
Are these performance characteristics to be expected. Does these results
surprise anyone.
Any feedback would be appreciated, and thanks in advance.
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