Slow copy (cp) performance when overwriting files Post: 302831957

9 More Discussions You Might Find Interesting

1. Post Here to Contact Site Administrators and Moderators

Help! Slow Performance

Is the performance now very, very slow (pages take a very long time to load)? Or is it just me? Neo

2. 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...

3. Filesystems, Disks and Memory

Slow Copy(CP) performance

Hi all We have got issues with copying a 2.6 GB file from one folder to another folder. Well, this is not the first issue we are having on the box currently, i will try to explain everything we have done from the past 2 days. We got a message 2 days back saying that our Production is 98%...

4. UNIX for Dummies Questions & Answers

Slow copy/performance... between volumes

hi guys We are seeing weird issues on my Linux Suse 10, it has lotus 8.5 and 1 filesystem for OS and another for Lotus Database. the issue is when the Lotus service starts wait on top is very high about 25% percent and in general CPU usage is very high we found that when this happens if we...

5. Shell Programming and Scripting

copy files using scp without overwriting

Hi, i need to use "scp" to copy a file without overwriting the same in destinations. any suggestion? thanks Sivaji

6. 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....

7. Shell Programming and Scripting

Copy files from multiple directories into one directory without overwriting them

I have several directories and all those directories have .dat files in them. I want to copy all those .dat files to one directory say "collected_directory" The problem is I don't want to overwrite files. So, if two file names match, I don't want the old file to be overwritten with a new one. ...

8. Infrastructure Monitoring

99% performance wa, slow server.

There is a big problem with the server (VPS based on OpenVZ, CentOS 5, 3GB RAM). The problem is the following. The first 15-20 minutes after starting the server is operating normally, the load average is less than or about 1.0, but then begins to increase sharply% wa, then hovers around 95-99%....

9. Solaris

Solaris 11.1 Slow Network Performance

I have identical M5000 machines that are needing to transfer very large amounts of data between them. These are fully loaded machines, and I've already checked IO, memory usage, etc... I get poor network performance even when the machines are idle or copying via loopback. The 10 GB NICs are...

LEARN ABOUT SUSE

irsend

IRSEND(1)								FSF								 IRSEND(1)

NAME

       irsend - basic LIRC program to send infra-red commands

SYNOPSIS

       irsend [options] DIRECTIVE REMOTE CODE [CODE...]

DESCRIPTION

       Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such
       as TV boxes, HiFi sets, etc.

       DIRECTIVE can be:
	  SEND_ONCE	    - send CODE [CODE ...] once
	  SEND_START	    - start repeating CODE
	  SEND_STOP	    - stop repeating CODE
	  LIST		    - list configured remote items
	  SET_TRANSMITTERS  - set transmitters NUM [NUM ...]
	  SIMULATE	    - simulate IR event

       REMOTE is the name of a remote, as described in the lircd configuration file.

       CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file.

       NUM is the transmitter number of the hardware device.

       For the LIST DIRECTIVE, REMOTE and/or CODE can be empty:

	  LIST	 ""    ""   - list all configured remote names
	  LIST REMOTE  ""   - list all codes of REMOTE
	  LIST REMOTE CODE  - list only CODE of REMOTE

       The SIMULATE command only works if it has been explicitly enabled in lircd.

       -h --help
	      display usage summary

       -v --version
	      display version

       -d --device
	      use given lircd socket [/var/run/lirc/lircd]

       -a --address=host[:port]
	      connect to lircd at this address

       -# --count=n
	      send command n times

EXAMPLES

	  irsend LIST DenonTuner ""
	  irsend SEND_ONCE  DenonTuner PROG-SCAN
	  irsend SEND_ONCE  OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP
	  irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3
	  irsend SEND_STOP  OnkyoAmpli VOL-DOWN
	  irsend SET_TRANSMITTERS 1
	  irsend SET_TRANSMITTERS 1 3 4
	  irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S"

FILES

       /etc/lirc/lircd.conf
	      Default lircd configuration file.  It should contain all the remotes, their infra-red codes and the corresponding timing	and  wave-
	      form details.

DIAGNOSTICS

       If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics:
       "irsend: could not connect to socket"
       "irsend: Connection refused" (or "Permission denied").

SEE ALSO

       The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory.

       lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org.

irsend 0.8.7pre1						     May 2010								 IRSEND(1)