RE: Using more than 2 gigs with Java on Linux?

Does your linux kernel has bug file support??? Reg Ved -Original Message- From: Jonathan Doughty [mailto:[EMAIL PROTECTED]] Sent: Tuesday, December 03, 2002 8:42 PM To: Nelson Minar Cc: [EMAIL PROTECTED] Subject: Re: Using more than 2 gigs with Java on Linux? I knew this was out there s

RE: intermittent extremely slow GC

I had a problem in 1.3.1 JDK. There was a leak while reading a 0 length zip file, the native memory grew larger and blows up the machine after a time. There was a fix in 1.4 but it still in 1.3.1 too. Reg Ved -Original Message- From: Uncle George [mailto:gatgul@;voicenet.com] Sent: Satu

RE: A bit of a crash!

All, If you set ulimit -s 2048 in the shell which you start java this should not happen. There is a bug filed in jdk database and I assume you are using sun jdk. There seems to be a problem in exception handling when using java thread. Ved -Original Message- From: Michael Erskine [ma

RE: Why do threads take so long to wake up underlinux

All, I agree with jim. We need to share information about this as this have direct impact on java/linux combination as a Enterprise platform. This should be addressed in a broad spectrum than just changing a parameter in kernel, though I'm interested in the kernel tweak.       Lets pos

RE: Why do threads take so long to wake up underlinux

Martin, Change the following line of the code to sleep for 20 sec instead of the counter(variable i). You will find the penalty to be 10 msec. BTW, does the fix proposed to change the kernel with HZ=1000 worked?? Reg Ved -Original Message- From: Martin, Stephen [mailto:[EMAIL PROTECTE

Unidentified subject!

All, I'm runnning my java app in linux rh7.1 (kernel - 2.4.12). In my app "VM thread" in my jvm is taking something around 10% of cpu9using top). Do you know why its taking and is it normal. Reg Ved -- To UNSUBSCRIBE, ema

RE: Measuring MYSQL Performance

Rams,    We wrote a quick tools to get the system utilisation for the java process. Its very easy. We used the jni to get the required info by executing top command and dumping it into a file in a seperate thread.     Do you manage to get any info on performanc

RE: java.lang.OutOfMemroyError

o uname -a to get the version (for newbeeies) Reg Ved -Original Message- From: Man Chi Ly [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 15, 2001 1:44 PM To: [EMAIL PROTECTED] Subject: RE: java.lang.OutOfMemroyError On Thu, 15 Nov 2001, Veda Narayanan wrote: > Try these environ

RE: java.lang.OutOfMemroyError

Try these environment variable either in the script you start your app or in java script ulimit -s 2048 export LD_ASSUME_KERNEL=2.2.5 export _JAVA_SR_SIGNUM=12 These are the thread parameters which will set your env for the latest thread related kernel changes in linux kernel. These

Problem while execiting sun jdk1.3.1_01 in Linux

All,   I encountered a problem today when I my aplication which is multithreaded and uses lot of I/O. I'm running my app in Linux 2.4.2 kernel with a sun 1.3.1 jdk with LD_LASSUME_KERNEL=2.2.5 setting. After running for several hours without JIT this is the screen dump I got   #

RE: RedHat 7.2/JDK compatibility?

All, Redhat 7.2 comes with the default linux kernel of 2.4.3. Please be careful with this kernel. Many JDK's(esp 1.3.x) were not qualified for this linux kernel. Linux kernel has gone many changes especially in Thread scheduling algos which need to be qualified by JDK developers. If not you mig