Better (after installing the IBM SDK):
$ time ./getinfo.rex
real96m9.540s
user77m1.404s
sys 1m45.491s
Frank M. Ramaekers Jr.
From: Frank M. Ramaekers
Sent: Wednesday, October 3, 2018 8:23 AM
To: 'Linux on 390 Port'
Subject: Slow java on s390?
I'm porting appli
Usually /opt/ibm:
$ ls /opt/ibm
java java-s390x-80
On 10/3/18, 13:17, "Linux on 390 Port on behalf of Frank M. Ramaekers"
wrote:
Yeah, having problems with that as well. Downloading from Windows wants
to download it as text (since it starts with a script). I got it downloaded
in bi
/usr? /lib? /opt/IBM?
Frank M. Ramaekers Jr.
-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Neale
Ferguson
Sent: Wednesday, October 3, 2018 11:48 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Slow java on s390?
It's in the EPEL repo. I thin
kage java-9-openjdk.s390x available.
Frank M. Ramaekers Jr.
-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of
Phillip Gramly
Sent: Wednesday, October 3, 2018 10:27 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Slow jav
bject: Re: Slow java on s390?
Frank - if this is ClefOS,
then this is what i did to get 1.9:
yum remove java
yum list installed |grep java
yum remove java-1.8.0-openjdk-headless.s390x yum install java-9-openjdk.s390x
now i get:
# java -version
openjdk version "9-ea"
OpenJDK Runtime Envir
Frank - if this is ClefOS,
then this is what i did to get 1.9:
yum remove java
yum list installed |grep java
yum remove java-1.8.0-openjdk-headless.s390x
yum install java-9-openjdk.s390x
now i get:
# java -version
openjdk version "9-ea"
OpenJDK Runtime Environment (build 9-ea+163)
OpenJDK 64-Bit
Barnard
Sent: Wednesday, October 3, 2018 8:41 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Slow java on s390?
Frank,
I would bet you do not have the IBM java installed.
What does the output from this command ... java --version show you?
The OpenJDK uses interpret mode while the IBM java has jit
The openjdk is not a JIT for s390x. java-9-openJDK adds a JIT capability (it's
in the ClefOS EPEL repo). You should use the IBM Java SDK you'll be very
pleasantly surprised by the improvement.
On 10/3/18, 09:24, "Linux on 390 Port on behalf of Frank M. Ramaekers"
wrote:
I'm porting appli
Frank,
I would bet you do not have the IBM java installed.
What does the output from this command ... java --version
show you?
The OpenJDK uses interpret mode while the IBM java has jit support.
Regards,
Jeff
--
For LINUX-39
I'm porting applications from an iLinux to a zLinux and am experiencing
performance problems on one particular process. This process uses dscli (IBM
Data Storage Command Line Interface) to our DS8870 to retrieve information and
report statistics (allocation).
On an Intel Linux virtual machine,
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