Having too many connections could affect performance ? Post: 302991307

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Special Forums UNIX and Linux Applications Having too many connections could affect performance ? Post 302991307 by alexcol on Wednesday 8th of February 2017 10:58:25 PM

02-08-2017

Registered User

Having too many connections could affect performance ?

Good evening, i need your help please

I will try to describe the scenario briefly: In a Telecom Production system application receives a certain files called CDRs(call detail records) to be processed by doing some operating systems operations and then database operations like creating indexes and uploading to a Central Database-

The applications server and database is quite obsolete OSF1 and oracle 9i.

Many times the applications turn very slow to process so performance is overheated. Of course There would be many causes for overheated performance, and it is premature to identify the problem at first glance.

So Could you tell me if below theories could affect Performance ?

I run netstat command and displays more than 102 connections some of them established state, some of them time wait, etc. So the question is having many connections could affect the performance of the application?
If I killed and restart connections would be a good idea to improve performance?
Having one or more Filesystem backups could affect Performance too ?

I appreciate your answers in advanced or if u have any other reason that could impact its performance let me know. Thanks

Last edited by rbatte1; 02-09-2017 at 05:19 AM.. Reason: Converted textual list to formatted numbered list and corrected spellings

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LEARN ABOUT NETBSD

pmc

PMC(1)							    BSD General Commands Manual 						    PMC(1)

NAME

     pmc -- performance-monitoring counter interface for command execution

SYNOPSIS

     pmc -h
     pmc -C
     pmc -c event command [options ...]

DESCRIPTION

     pmc is a means of using a processor's performance-monitoring counter (PMC) facility to measure various aspects of a program's execution.  It
     is meant to be used in a fashion similar to time(1).

     The arguments are as follows:

     -h      Display a list of performance counter events available on the system.

     -C      Cancel any performance counters that are currently running.

     -c event
	     Count the event specified by event while running the command.

DIAGNOSTICS

     PMC support is not compiled into the kernel  Performance-monitoring counter support has not been compiled into the kernel.  It may be
     included using the PERFCTRS option.  See options(4) for details.

     PMC counters are not supported by CPU  Performance-monitoring counters are not available for the CPU.

SEE ALSO

     time(1), options(4)

HISTORY

     The pmc command first appeared in NetBSD 1.6.

AUTHORS

     The pmc command was written by Frank van der Linden <fvdl@wasabisystems.com>.  The kernel support for reading performance counters on the
     i386 architecture was written by
     Jason R. Thorpe <thorpej@zembu.com>.

BUGS

     The pmc command currently only supports performance-monitoring counters on the i386 architecture.

BSD
								 October 24, 2000							       BSD

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