[COLUG] MVMRUG Spring Meeting Announcement - April 25 - Columbus OH

[R P Herrold]

On Sun, 20 Apr 2008, Rick Troth wrote:

> ... and ... you are not only INVITED
> but you are ENCOURAGED to attend.  Linux on "System z" is neat stuff!

IBM has been kind enough to have provided me access to a 
zLinux instance, and it times out faster than a nominally 
faster Intel unit.

[herrold at etpglnz ~]$ time ( rpmbuild --rebuild \
 	graphviz-2.8-1.sl.src.rpm > /dev/null 2>&1 )

real    10m13.022s
user    8m27.421s
sys     1m25.430s
[herrold at etpglnz ~]$ dmesg | grep -i ogo
Calibrating delay loop... 3394.76 BogoMIPS (lpj=16973824)
[herrold at etpglnz ~]$ free
              total       used       free     shared    buffers 
cached
Mem:        511352     300948     210404          0      32840 
136772
-/+ buffers/cache:     131336     380016
Swap:       539896          0     539896
[herrold at etpglnz ~]$ uname -a
Linux etpglnz 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:30 EDT 
2007 s390x s390x s390x GNU/Linux
[herrold at etpglnz ~]$

compare to building the same package with an identical build 
environment, on a nominally faster Intel platform:

[herrold at centos-5 ~]$ time ( rpmbuild --rebuild \
 	graphviz-2.8-1.sl.src.rpm > /dev/null 2>&1 )

real    12m10.345s
user    2m37.486s
sys     1m52.115s
[herrold at centos-5 ~]$ dmesg | grep -i ogo
Calibrating delay using timer specific routine.. 6652.18 
BogoMIPS (lpj=13304367)
[herrold at centos-5 ~]$ free
              total       used       free     shared    buffers 
cached
Mem:       3907584    3129248     778336          0     106780 
865244
-/+ buffers/cache:    2157224    1750360
Swap:      8193140        176    8192964
[herrold at centos-5 ~]$ uname -a
Linux centos-5.first.lan 2.6.18-53.1.14.el5xen #1 SMP Wed Mar 
5 12:08:17 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
[herrold at centos-5 ~]$

-- Russ herrold