Linux performance guides for distributions

I'm often asked for the performance guides from Red Hat and SUSE. So here are the links for that: RHEL 6 Performance Tuning Guide SLES 1...Read more »

Request for Enhancement (RFE) community launched including Linux on System z and z/VM requirements

The Request for Enhancement (RFE) community has been used for IBM Software products for a while. Now also the Systems and Systems Software i...Read more »

IBM XL C/C++ for Linux on System z beta program

IBM has launched a beta program for a new compiler for Linux on System z. If you've been working with IBM platforms you may already kno...Read more »

Oracle Database 12c R1 and 11.2.0.4 fixpack available for Linux on System z

Oracle has released the new 12cR1 version of their database for Linux on System z. With the appropriate license you can download it from Ora...Read more »

Fedora 20 for IBM System z released

The new Fedora 20 for System z / s390x was released 1/8/2014. Thanks to the Fedora team keeping the distribution going! The download is av...Read more »

Oprofile on zLinux - how to setup and use

(updated 1/8/2014) Oprofile is a system wide profiler which is available in all major distributions for Linux on System z. Here is the setu...Read more »

Installation of Linux on System z

Now and then I get the question on documentation for the base installation of Linux on System z. As this depends on the distribution, take a...Read more »

Red Hat Enterprise Linux 6.5 released

Nine months after the last release Red Hat has announced the availability of RHEL 6.5. The kernel level is now kernel-2.6.32-431.el6, for t...Read more »

Raw ECKD access from zLinux

Since a while the Linux DASD driver has been enhanced to access full ECKD tracks. Basically the following steps are needed: Take the device ...Read more »

Red Hat Enterprise Linux 5.10 released

Red Hat has announced the availability of RHEL 5.10. You can find more information on this here: Announcement Release Notes Technical Notes ...Read more »

Getting the Go programming language to work on zLinux

There is an increased interest in the new programming language Go . The standard download page doesn't have packages for s390x so I tri...Read more »

New Whitepaper covering IBM Filenet P8 on zLinux

IBM Filenet P8 has been available for zLinux for quite some time. It's a really scalable document management, content lifecycle, and w...Read more »

New Whitepaper "Implementing A Web Interface For The Linux Health Checker"

The Linux Health Checker is an IBM initiated open source project hosted on Sourceforge. It's a command line tool with an increasing num...Read more »

zBC12

On July 23rd IBM has announced the new business class model of the mainframe the zBC12 . This is the successor to the z114 and is as you pr...Read more »

Large Systems Performance Reference (LSPR) for zLinux

The Large Systems Performance Reference (LSPR) published by IBM has also a Linux workload included. There you can get a first impression o...Read more »

Fedora 19 for IBM System z released

The new Fedora 19 release for System z / s390x happened today. Congratulations to the team! The download is available from the Fedoraproje...Read more »

How to determine which kernel level corresponds to which service release for RHEL and SLES

Now and then I get the question - where to find the kernel level or version for a specific service release. And vice versa - I have kernel l...Read more »

SLES 11 SP3 released

Today SUSE announced the release of Service Pack 3 for SLES 11 . It's been more than 16 months since the last release, so quite some wai...Read more »

Cheat sheet for lock debugging in the Linux kernel

From time to time I'm getting a performance problems that requires identifying the lock in the Linux kernel that causes too much lock co...Read more »

zlib performance improvements

In my blog entry on RHEL 6.4 I've mentioned that there have been performance enhancements for zlib compression. However I never got aro...Read more »