awk to capture memory difference Post: 303039962

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Top Forums UNIX for Beginners Questions & Answers awk to capture memory difference Post 303039962 by sand1234 on Saturday 19th of October 2019 08:06:41 AM

10-19-2019

Registered User

awk to capture memory difference

Hi,

I have a file which consists of the following information in repeating blocks.

Code:

************First iteration***************

xr_lab#show memory compare start
Thu Sep 19 14:38:06.400 WIB   <<<<<<<<<< START TIME
Successfully stored memory snapshot in /var/log/malloc_dump_memcmp_start.out
xr_lab#
xr_lab#
xr_lab#show memory compare end
Thu Sep 19 14:40:56.123 WIB   <<<<<<<<<< END TIME
Successfully stored memory snapshot in /var/log/malloc_dump_memcmp_end.out
xr_lab#
xr_lab#show memory compare report
Thu Sep 19 14:41:08.084 WIB

PID    NAME                     MEM BEFORE    MEM AFTER  DIFFERENCE MALLOCS-NEW
-------------------------------------------------------------------------------

2550   sysdb_svr_local          7881443     7878256     -3187       87391
7582   mibd_interface           8670334     8484152     -186182     267657

**********Second iteration************

xr_lab#show memory compare start
Thu Sep 19 14:43:07.946 WIB   <<<<<<<<<< START TIME
Successfully stored memory snapshot in /var/log/malloc_dump_memcmp_start.out
xr_lab#
xr_lab#
xr_lab#
xr_lab#show memory compare end
Thu Sep 19 14:45:27.916 WIB   <<<<<<<<<< END TIME
Successfully stored memory snapshot in /var/log/malloc_dump_memcmp_end.out
xr_lab#
xr_lab#
xr_lab#show memory compare report
Thu Sep 19 14:45:42.091 WIB

PID    NAME                     MEM BEFORE    MEM AFTER  DIFFERENCE MALLOCS-NEW
-------------------------------------------------------------------------------
6777   ospf                     24294569    24283592    -10977      227389
7582   mibd_interface           8369050     8514825     145775      126259

I would like to capture the {start time, mem_before} in one column, and {end time, mem_after} in another column for mibd_interface.

The logic I need looks something like this. Can you please assist to develop it further?

Code:

awk '/show memory compare start/{
             getline; start_time=$0;
  }
     /show memory compare end/{
             getline; end_time=$0;
  }

if(start_time); /mibd_interface/print $3
if(end_time); /mibd_interface/print $4

sand1234

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english

English(3pm)						 Perl Programmers Reference Guide					      English(3pm)

NAME

       English - use nice English (or awk) names for ugly punctuation variables

SYNOPSIS

	   use English;
	   use English qw( -no_match_vars ) ;  # Avoids regex performance penalty
					       # in perl 5.16 and earlier
	   ...
	   if ($ERRNO =~ /denied/) { ... }

DESCRIPTION

       This module provides aliases for the built-in variables whose names no one seems to like to read.  Variables with side-effects which get
       triggered just by accessing them (like $0) will still be affected.

       For those variables that have an awk version, both long and short English alternatives are provided.  For example, the $/ variable can be
       referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module.

       See perlvar for a complete list of these.

PERFORMANCE

       NOTE: This was fixed in perl 5.20.  Mentioning these three variables no longer makes a speed difference.  This section still applies if
       your code is to run on perl 5.18 or earlier.

       This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details.  If performance matters
       in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing

	  use English qw( -no_match_vars ) ;

       .  It is especially important to do this in modules to avoid penalizing all applications which use them.

perl v5.18.2							    2014-01-06							      English(3pm)