I wrote the below shell script to generate a report on alert messages recieved on a day. But i for processing around 4500 lines (alerts) the script is taking aorund 30 minutes to process.
Please help me to make it faster and improve the performace of the script. i would be very happy if this report gets generated within 5 mins - if possible
Below is my shell script
---------- Post updated at 10:00 AM ---------- Previous update was at 09:55 AM ----------
The alert messages (4000 lines) will be like below The report i want looks like below
Last edited by apsprabhu; 04-09-2010 at 02:38 AM..
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I have a data file of 2 gig
I need to do all these, but its taking hours, any where i can improve performance, thanks a lot
#!/usr/bin/ksh
echo TIMESTAMP="$(date +'_%y-%m-%d.%H-%M-%S')"
function showHelp {
cat << EOF >&2
syntax extreme.sh FILENAME
Specify filename to parse
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Hi All,
I have written a script as follows which is taking lot of time in executing/searching only 3500 records taken as input from one file in log file of 12 GB Approximately.
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Hi,
I have around one lakh records. I have used XML for the creation of the data.
I have used these 2 Perl modules.
use XML::DOM;
use XML::LibXML;
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<eid>19000</eid>
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file=$1
ofile=$2
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Hello,
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Hello,
For several of our scripts we are using awk to search patterns in files with data from other files. This works almost perfectly except that it takes ages to run on larger files. I am wondering if there is a way to speed up this process or have something else that is quicker with the... (15 Replies)
Discussion started by: SDohmen
15 Replies
LEARN ABOUT CENTOS
error::pass4
ERROR::PASS4(7stap)ERROR::PASS4(7stap)NAME
error::pass4 - systemtap pass-4 errors
DESCRIPTION
Errors that occur during pass 4 (compilation) have generally only a few causes:
kernel or OS version changes
The systemtap runtime and embedded-C fragments in the tapset library are designed to be portable across a wide range of OS versions.
However, incompatibilities can occur when some OS changes occur, such as kernel modifications that change functions, types, or
macros referenced by systemtap. Upstream builds of systemtap are often quickly updated to include relevant fixes, so try getting or
making an updated build. If the issue persists, report the problem to the systemtap developers.
buggy embedded-C code
Embedded-C code in your own guru-mode script cannot be checked by systemtap, and is passed through verbatim to the compiler. Errors
in such snippets of code may be found during the pass-4 compiler invocation, though may be hard to identify by the compiler errors.
incompatible embedded-C code
The interface standards between systemtap-generated code and embedded-C code occasionally change. For example, before version 1.8,
arguments were passed using macros THIS->foo and THIS->__retvalue but from version 1.8 onward, using STAP_ARG_foo and STAP_RETVALUE.
Adjust your embedded-C code to current standards, or use the stap --compatible=VERSION option to make systemtap use a different one.
GATHERING MORE INFORMATION
It may be necessary to run systemtap with -k or -p3 to examine the generated C code. Increasing the verbosity of pass-4 with an option
such as --vp 0001 can also help pinpoint the problem.
SEE ALSO stap(1),
error::reporting(7stap)ERROR::PASS4(7stap)