Re: Serious problems with Java & threads on stable & unstable... (?)
>>>>> "william" == William M Perry <wmperry@gnu.org> writes:
william> Has anybody else tried running the volano.com benchmarks
william> (http://www.volano.com/benchmarks.html) under debian? They fail miserably
william> using the blackdown JVM from the stable & unstable branches. They also
william> fail using the sun 1.4.0 packages.
william> The volano benchmarks use their chat server and creates a certain number of
william> rooms with users in them, and times how quickly messages get propogated to
william> everyone in a room.
william> This is the output I get:
william> [Fri May 10 23:40:44 EST 2002] Unexpected error in MainServer
william> thread. (java.lang.OutOfMemoryError: unable to create new native thread)
william> [Fri May 10 23:40:44 EST 2002] MainServer thread is stopping
william> This is on a PIII/550 w/384 megabytes of memory and 768 megabytes of swap.
william> We never hit the swap at all. Most memory used is 250 megabytes, with
william> approximately half of that being used by the buffers/cache.
william> I can run a -very- limited test on debian without it dying. Around 20
william> active connections before it croaks.
william> On a stock redhat 7.2 installation, I can run 505 active connections before
william> receiving a similar message.
william> This fails on debian stable (potato) and unstable (sid).
william> Has anybody run into something similar? 'ulimit -a' doesn't turn up
william> anything particularly alarming on either box. This fails as root and as a
william> normal user.
william> Any help would be greatly appreciated. I really want to convince my bosses
william> to use debian instead of redhat. :)
Huh? Here's on a bleeding edge SID/unstable system:
rossini 59 > java vmark2_1_2_0
InstallShield Java (TM) Edition
Extracting installation code................................done
rossini 60 > cd vmark2
vmark2.1.2/ vmark2_1_2_0.class
rossini 60 > cd vmark2.1.2/
<- random stupid reading cruft removed... ->
rossini 66 > java -Xms8m -Xmx64m COM.volano.Main
VolanoChat(TM) Server Version 2.1.2
Copyright (C) 1996-1999 Volano LLC. All rights reserved.
Loading server properties from
/home/faculty/rossini/vmark2.1.2/properties.txt.
rossini.biostat.washington.edu (128.95.21.58) VolanoChatPro -
unlimited connections.
Suspended
rossini 67 > bg
[1] java -Xms8m -Xmx64m COM.volano.Main &
rossini 68 > java -Xms8m -Xmx64m COM.volano.Mark -count 100
VolanoMark(TM) Benchmark Version 2.1.2
Copyright (C) 1996-1999 Volano LLC. All rights reserved.
Creating room number 1 ...
20 connections so far.
Creating room number 2 ...
40 connections so far.
Creating room number 3 ...
60 connections so far.
Creating room number 4 ...
80 connections so far.
Creating room number 5 ...
100 connections so far.
Creating room number 6 ...
120 connections so far.
Creating room number 7 ...
140 connections so far.
Creating room number 8 ...
160 connections so far.
Creating room number 9 ...
180 connections so far.
Creating room number 10 ...
200 connections so far.
Running the test ...
Test complete.
VolanoMark version = 2.1.2
Messages sent = 20000
Messages received = 380000
Total messages = 400000
Elapsed time = 68.606 seconds
Average throughput = 5830 messages per second
rossini 69 >
--
A.J. Rossini Rsrch. Asst. Prof. of Biostatistics
U. of Washington Biostatistics rossini@u.washington.edu
FHCRC/SCHARP/HIV Vaccine Trials Net rossini@scharp.org
-------------- http://software.biostat.washington.edu/ ----------------
FHCRC: M-W: 206-667-7025 (fax=4812)|Voicemail is pretty sketchy/use Email
UW: Th: 206-543-1044 (fax=3286)|Change last 4 digits of phone to FAX
(my friday location is usually completely unpredictable.)
--
To UNSUBSCRIBE, email to debian-java-request@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
Reply to: