File writing is slow Post: 302167961

9 More Discussions You Might Find Interesting

1. Red Hat

NFS writing so slow

Hi, I facing an NFS problem. I have machine1, which has diskA and diskB, and machine2, both are Mandriva 2009 Linux. When I am on machine2 and NFS mount both diskA and diskB of machine1. Writing to diskA is very fast, but writing to diskB is very slow. I tried different mount rsize and wsize...

2. Red Hat

file writing over nfs very slow

Hi guys, I am trying something. I wrote a simple shell program to test something where continuous while loop writes on a file over the nfs. The time taken to write "hello" 3000 times take about 10 sec which is not right. Ideally it should take fraction of seconds. If I write on the local disk, it...

3. Shell Programming and Scripting

File processing is very slow with cut command

Dear All, I am using the following script to find and replace the date format in a file. The field18 in the file has the following format: "01/26/2010 11:55:14 GMT+04:00" which I want to convert into the following format "20100126115514" for this purpose I am using the following lines of codes:...

4. Shell Programming and Scripting

Slow performance filtering file

Please, I need help tuning my script. It works but it's too slow. The code reads an acivity log file with 50.000 - 100.000 lines and filters error messages from it. The data in the actlog file look similar to this: 02/08/2011 00:25:01,ANR2034E QUERY MOUNT: No match found using this criteria....

5. Shell Programming and Scripting

Very big text file - Too slow!

Hello everyone, suppose there is a very big text file (>800 mb) that each line contains an article from wikipedia. Each article begins with a tag (<..>) containing its url. Currently there are 10^6 articles in the file. I want to take random N articles, eliminate all non-alpharithmetic...

6. Shell Programming and Scripting

Help with File Slow Processing

Hello, Hope you are doing fine. Let me describe the problem, I have a script that calls another script K2Test.sh, this script K2Test.sh (created by another team) takes date as argument and generates approx 1365 files in localcurves directory for given date. Out of these 1365 I am only...

7. Red Hat

GFS file system performance is very slow

My code Hi All, I am having redhat linux 5.3 (Tikanga) with GFS file system and its very very slow for executing ls -ls command also.Please see the below for 2minits 12 second takes. Please help me to fix the issue. $ sudo time ls -la BadFiles |wc -l 0.01user 0.26system...

8. Shell Programming and Scripting

Shell script reading file slow

I have shell program as below #!/bin/sh echo ======= LogManageri start ========== #This directory is getting the raw data from remote server Raw_data=/opt/ftplogs # This directory is ready for process the data Processing_dir=/opt/processing_dir # This directory is prcoessed files and...

9. UNIX for Dummies Questions & Answers

Extremely slow file writing with many small files on mounted NAS

I am working on a CentOS release 6.4 server which has two mounted NAS devices, one with 20 x 3TB HDD running in FreeBSD with Zfs2 and one NAS which I don't know much about, but which has 7 HDDs in RAID-6. I was running tar -zxvf on a tarball that is 80Mb with 50,000 small files inside. Even...

LEARN ABOUT DEBIAN

multinode_server

MULTINODE_SERVER(1)						       MORSE						       MULTINODE_SERVER(1)

NAME

       multinode_server - Server program to synchronise several instances of MORSE

SYNOPSIS

       multinode_server [synchronisation delay]

DESCRIPTION

       Socket server program to synchronise several instances of MORSE (nodes) running the same simulation scenario.  This program must be started
       before launching the simulation in the nodes.

       All the client nodes will connect with the server and send it the updated positions of the robots they manage. The multinode_server program
       will concentrate the positions of all robots into a single Python dictionary, and then send it back to all clients.

       It  also  permits  pausing  the	simulation, by typing in its terminal p and Enter. The same command will allow the simulation to continue.
       This mechanism relies on the fact that the clients will remain waiting for a reply from the server before continuing with the simulation.

PARAMETERS

       [synchronisation delay]
	      Optional parameter that defines the delay (in seconds) between messages to the connected clients. A larger delay will slow down  the
	      simulation in all clients. Default value is 0.0

SEE ALSO

       morse(1) morseexec(1)

COPYRIGHT

       2009-2010, LAAS-CNRS/ONERA ; 2010-2012, LAAS-CNRS

0.5.2								   May 14, 2012 					       MULTINODE_SERVER(1)