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 NETBSD

mount_ext2fs

MOUNT_EXT2FS(8) 					    BSD System Manager's Manual 					   MOUNT_EXT2FS(8)

NAME

     mount_ext2fs -- Mount an ext2 file system

SYNOPSIS

     mount_ext2fs [-o options] special node

DESCRIPTION

     The mount_ext2fs command attaches an ext2 file system special device on to the file system tree at the point node.  Both special and node are
     converted to absolute paths before use.

     This command is normally executed by mount(8) at boot time.

     The options are as follows:

     -o      Options are specified with a -o flag followed by a comma-separated string of options.  See the mount(8) man page for possible options
	     and their meanings.

SEE ALSO

     mount(2), unmount(2), options(4), fstab(5), mount(8)

HISTORY

     The mount_ext2fs utility first appeared in FreeBSD 2.2.

BUGS

     Some ext2-specific options, features or file flags are not supported.

BSD
								 February 22, 2010							       BSD