Rsync quite slow (using very little cpu): how to improve its speed? Post: 303018354

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

network speed is slow

Hello, everyone: i encounter a problem these days , pls help me ,thanks in advance. my env: machine: ES40 A ES40 B os: true64 Unix 4.0f note: src.tar 8M network card speed 100M my problem: ...

2. AIX

cpu speed

how do i determine the speed of a cpu on AIX 4.3.3 or 5.1?

3. HP-UX

How to find CPU Speed of HP UX

Need to find the CPU speed of HP UX for a non root login. echo "itick_per_usec/D" | adb /stand/vmunix /dev/mem | tail -1 will give the following for non root users ERROR: cannot open `/dev/mem', errno = 13, Permission denied

4. Shell Programming and Scripting

egrep is very slow : How to improve performance

We have an egrep search in a while loop. egrep -w "$key" ${PICKUP_DIR}/new_update >> ${PICKUP_DIR}/update_record_new ${PICKUP_DIR}/new_update is 210 MB file In each iteration, the egrep on an average takes around 50-60 seconds to search. Ther'es nothing significant in the loop other...

5. UNIX for Advanced & Expert Users

speed test +20,000 file existance checks too slow

Need to make a very fast file existence checker. Passing in 20-50K num of files In the code below ${file} is a file with a listing of +20,000 files. test_speed is the script. I am commenting out the results of <time test_speed try>. The normal "test -f" is much much too slow when a system...

6. Shell Programming and Scripting

Help to improve speed of text processing script

Hey together, You should know, that I'am relatively new to shell scripting, so my solution is probably a little awkward. Here is the script: #!/bin/bash live_dir=/var/lib/pokerhands/live for limit in `find $live_dir/ -type d | sed -e s#$live_dir/##`; do cat $live_dir/$limit/*...

7. Red Hat

RHEL 5.6 Slow rsync to NFS array

Hi All, I have RHEL 5.6 with a 70GB local directory of Web content. Images, PHP scripts etc. I need to copy all this content to an NFS array thats mounted on the RHEL server. I did a baseline cp to copy the content one week ago. Since my baseline copy the local directory has grown by 8GB....

8. Shell Programming and Scripting

Slow Perl script: how to speed up?

I had written a perl script to compare two files: new and master and get the output of the first file i.e. the first file: words that are not in the master file STRUCTURE OF THE TWO FILES The first file is a series of names ramesh sushil jonga sudesh lugdi whereas the second file (could be...

9. Shell Programming and Scripting

Improve script - slow process with big files

Gents, Please can u help me to improve this script to be more faster, it works perfectly but for big files take a lot time to end the job.. I see the problem is in the step (while) and in this part the script takes a lot time.. Please if you can find a best way to do will be great. ...

LEARN ABOUT DEBIAN

rdiff

rdiff(1)						      General Commands Manual							  rdiff(1)

NAME

       rdiff - compute and apply signature-based file differences

SYNOPSYS

       rdiff [options] signature old-file signature-file

       rdiff [options] delta signature-file new-file delta-file

       rdiff [options] patch basis-file delta-file new-file

USAGE

       You  can  use  rdiff  to  update  files, much like rsync does.  However, unlike rsync, rdiff puts you in control.  There are three steps to
       updating a file: signature, delta, and patch.

DESCRIPTION

       In every case where a filename must be specified, - may be used instead to mean either standard input or standard  output  as  appropriate.
       Be aware that if you do this, you'll need to terminate your options with -- or rdiff will think you are passing it an empty option.

RETURN VALUE

       0  for successful completion, 1 for environmental problems (file not found, invalid options, IO error, etc), 2 for a corrupt file and 3 for
       an internal error or unhandled situation in librsync or rdiff.

SEE ALSO

       librsync(3)

AUTHOR

       Martin Pool <mbp@samba.org>

       The original rsync algorithm was discovered by Andrew Tridgell.

       rdiff development has been supported by Linuxcare, Inc and VA Linux Systems.

							   $Date: 2002/01/25 21:25:34 $ 						  rdiff(1)