Empty directory, large size and performance

Operating Systems Linux Red Hat Empty directory, large size and performance

Prev Next

01-20-2012

Registered User

3, 0

Join Date: Jan 2012

Last Activity: 20 January 2012, 12:10 PM EST

Posts: 3

Thanks Given: 0

Thanked 0 Times in 0 Posts

Empty directory, large size and performance

Hi,

I've some directory that I used as working directory for a program. At the end of the procedure, the content is deleted. This directory, when I do a ls -l, appears to still take up some space. After a little research, I've seen on a another board of this forum that it's not really taking space, but it's still reporting the inodes that it was using. Those inodes are marked as reusable so I don't loose any space.

My question is, does this affect the performance of the filesystem at all?
I know the easy solution is to erase the directory and recreate it.
But for my personal enlightenment I would really like to know.

Thanks in advance
Benoit Desmarais

bdx

View Public Profile for bdx

Find all posts by bdx

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash script search, improve performance with large files

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...

2. UNIX for Beginners Questions & Answers

Command to extract empty field in a large UNIX file?

Hi All, I have records in unix file like below. In this file, we have empty fields from 4th Column to 22nd Column. I have some 200000 records in a file. I want to extract records only which have empty fields from 4th field to 22nd filed. This file is comma separated file. what is the unix...

3. Shell Programming and Scripting

Performance issue in Grepping large files

I have around 300 files(*.rdf,*.fmb,*.pll,*.ctl,*.sh,*.sql,*.prog) which are of large size. Around 8000 keywords(which will be in the file $keywordfile) needed to be searched inside those files. If a keyword is found in a file..I have to insert the filename,extension,catagoery,keyword,occurrence...

4. Shell Programming and Scripting

How to delete some of the files in the directory, if the directory size limits the specified size

To find the whole size of a particular directory i use "du -sk /dirname".. but after finding the direcory's size how do i make conditions like if the size of the dir is more than 1 GB i hav to delete some of the files inside the dir

5. Shell Programming and Scripting

Severe performance issue while 'grep'ing on large volume of data

Background ------------- The Unix flavor can be any amongst Solaris, AIX, HP-UX and Linux. I have below 2 flat files. File-1 ------ Contains 50,000 rows with 2 fields in each row, separated by pipe. Row structure is like Object_Id|Object_Name, as following: 111|XXX 222|YYY 333|ZZZ ...

6. HP-UX

Empty Directory, big size

Hello, Can you please explain why I have various empty directories with large size ? OS is B.11.11

7. UNIX for Dummies Questions & Answers

Empty Directory, big size

Hello, Can somebody please explain why I have EMPTY directories on HP-UX with BIG SIZE ? Thank you ! Double post, continued here

8. UNIX for Dummies Questions & Answers

Empty directories having different size

$ls -lrt mydir total 12 drwxrwxrwx 2 nobody nobody 512 Aug 8 11:51 tmp drwxrwxrwx 2 nobody nobody 4608 Jan 19 12:20 web.cache $ ls -lrt mydir/web.cache/ total 0 $ ls -lrt mydir/tmp/ total 0 Can anyone explain me the above results? I know the o/p of ls, but this...

9. UNIX for Dummies Questions & Answers

Unix File System performance with large directories

Hi, how does the Unix File System perform with large directories (containing ~30.000 files)? What kind of structure is used for the organization of a directory's content, linear lists, (binary) trees? I hope the description 'Unix File System' is exact enough, I don't know more about the file...

LEARN ABOUT BSD

chdir

CHDIR(2)							System Calls Manual							  CHDIR(2)

NAME

       chdir, fchdir - change current working directory

SYNOPSIS

       chdir(path)
       char *path;

       fchdir(fd)
       int fd;

DESCRIPTION

       The  path  argument  points  to the pathname of a directory.  The fd argument is a file descriptor which references a directory.  The chdir
       function causes this directory to become the current working directory, the starting point for path names not beginning with ``/''.

       The fchdir function causes the directory referenced by fd to become the current working directory, the starting point for path searches	of
       pathnames not beginning with a slahs, '/'.

       In order for a directory to become the current directory, a process must have execute (search) access to the directory.

RETURN VALUE

       Upon successful completion, a value of 0 is returned.  Otherwise, a value of -1 is returned and errno is set to indicate the error.

ERRORS

       Chdir will fail and the current working directory will be unchanged if one or more of the following are true:

       [ENOTDIR]      A component of the path prefix is not a directory.

       [EINVAL]       The pathname contains a character with the high-order bit set.

       [ENAMETOOLONG] A component of a pathname exceeded 63 characters, or an entire path name exceeded 255 characters.

       [ENOENT]       The named directory does not exist.

       [ELOOP]	      Too many symbolic links were encountered in translating the pathname.

       [EACCES]       Search permission is denied for any component of the path name.

       [EFAULT]       Path points outside the process's allocated address space.

       [EIO]	      An I/O error occurred while reading from or writing to the file system.

       Fchdir will fail and the current working directory will be unchanged if one or more of the following are true:

       [EACCES]       Search permission is denied for the directory referenced by the file descriptor.

       [ENOTDIR]      The file descriptor fd does not reference a directory.

       [EBADF]	      The argument fd is not a valid file descriptor.

SEE ALSO

       chroot(2)

4th Berkeley Distribution					  April 21, 1994							  CHDIR(2)

Red Hat