|-----Original Message-----
|From: [EMAIL PROTECTED]
|[mailto:[EMAIL PROTECTED]]On Behalf Of Tobias Frech
|Sent: Tuesday, November 28, 2000 5:29 PM
|To: jBoss
|Subject: Re: [jBoss-User] jBoss Performance - Benchmark
|
|
|Hi!
|What do this times mean ?
|
|a) If I have 5000 clients permanently calling a read-only method on a
|optimized entity bean the 5001st client will probably have to wait
|around 1.26 ms for getting the result from the call (That would mean the
|container handles 1000/1.26 * 5000 = 3,968,254 calls/s, phewha !)
each client does wait the 1.26ms with 5000 parallel guys so... yes. (afaik)
unless we are doing something horribly wrong, btw the code is in jbosstest
I guess you just calculated the "container throughput"... he he
marc
|
|or
|
|b) If I start 5000 clients at the same time (same call as above) with
|just one request per client the result for the "last" client will be
|received after 5000*1.26ms ?
no *each* client waits 1.26 ms per call on average
(That would mean that I can expect the
|container to process about 5000 calls in 5000*1.26ms, which makes
|1000/1.26 = 763 calls/s)
|
|Just curious ...
|
|Tobias
|
|
|marc fleury wrote:
|>
|> Test Description Number of concurrent clients
|> 1 10 50 100 200 500 1000 2000 5000
|>
|> (all times in ms)
|>
|> Read-only call on an entity bean (optimized) 0.83038 1.3163 0.66576
|> 0.6892 0.687 0.71442 0.78052 0.8346 1.25902
|> Read-only call on an entity bean (serialized) 8.65604 2.17434 2.56748
|> 2.09062 1.98144 2.12986 2.40266 2.54646 1.91216
|> Call to stateful session (optimized) 0.26798 0.2712 0.30144 0.31946
|> 0.2788 0.25258 0.273 0.2904 0.33208
|> Call to stateless session (optimized) 0.25756 0.26176 0.28222 0.29342
|> 0.28702 0.23854 0.25636 0.29542 0.31706
|>
|> This is done on a Compaq 700Mhz 256Meg RAM win2k, SUN 1.3 VM
|>
|> THE IMPORTANT PART OF THIS IS THE READ-ONLY CALL FOR ENTITIES
|>
|> because it goes through all the container layers the cache lookup the
|> contention (there is loads of it there) etc etc
|>
|> THE CONTAINER LAYERS FOR ENTITY RUN 0.7ms STABLE EVEN WITH ****2000****
|> CLIENTS IN PARALLEL (2000 threads)
|>
|> ALSO NOTE THAT WE DRIVE THE STUFF FROM THE SAME MACHINE SO THE
|CLIENT LOAD
|> IS ******IN*******
|>
|> IF YOU SEE SOMETHING ABOVE 1MS IT IS EITHER NETWORK OR DB!!!!!!!!!!!!
|>
|> <STRONG EMPHASIS> WE ARE ALSO VERY HAPPY WITH THE FACT THE CONTAINER
|> ******SCALES***** EXTREMELLY WELL</STRONG EMPHASIS>
|
|
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