Hi, Pat.
Patrick Spinler wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi:
I'd like to bring the data perfkit is collecting in it's histlog into a
linux database so I can slice and dice it for long term trending and
capacity planning.
Has anyone done anything similar to this? If so, how did you manage
this and what tools did you use?
If it's useful to know what I've tried so far, my first attempt was to
link perfkit's 191 disk to my linux service machine read only, run a
linux job to periodically copy the histlog file(s) into linux with the
cmsfs tools after they were rolled over (we keep several, using some
perfkit customizations).
However I'm not sure how to parse the binary data in linux. The
performance toolkit reference documents the record layout (appendix D,
pg 733), but what, exactly, is an "E" format number? Chapter 9 of the
"Principles of Operation" manual doesn't easily give up it's secrets. :-)
The "E" format refers to the original (S/360 era) hexadecimal floating point
format that
IBM used for years to perform floating point arithmetic in hardware. The three
variants of
this format, short, long and extended, are described in Chapter 18 of the PoP
manual. Now
IBM also supports binary (IEEE 754) format floating point operations and even
decimal
format floating point arithmetic as well. Chapter 9 in the PoP gives a nice
overview of
all three of these floating point formats, but Chapter 18 is the one you want
to read....
As an alternative solution, I'm now looking at the CSVGEN package from
vm.ibm.com/related/perfkit. Has anyone used this?
Yes, I have. It does work as advertised, but it can be a real CPU hog if asked
to process
large history or trend files. One reason is because it loads the entire history
or trend
file into storage before it starts to convert the data into spreadsheet format.
It also
can not process just a given date and/or time range from the history file....so
it's all
or nothing, witch might given you way too much data for what you're trying to
do. Give it
a go, though, and see how well it meets your needs.
Thanks muchly!
- -- Pat
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (Darwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iEYEARECAAYFAkk/8KgACgkQNObCqA8uBsw3qgCeOj3gPHNgQ5eansn81LA4E6x1
D78Ani0BY7FS6NLJktt+Ru/PMbpwe+4s
=FR/O
-----END PGP SIGNATURE-----
----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit
http://www.marist.edu/htbin/wlvindex?LINUX-390
--
DJ
V/Soft
z/VM and mainframe Linux expertise, training,
consulting, and software development
www.vsoft-software.com
----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit
http://www.marist.edu/htbin/wlvindex?LINUX-390
