06-04-2018
That rsync is slow while using very little CPU points to an I/O bottleneck. They're spending most of their time waiting for disk. Maybe your system ended up using a fallback driver of some sort.
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1. UNIX for Advanced & Expert Users
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:
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4. Shell Programming and Scripting
We have an egrep search in a while loop.
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5. UNIX for Advanced & Expert Users
Need to make a very fast file existence checker. Passing in 20-50K num of files
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6. Shell Programming and Scripting
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
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Hi All,
I have RHEL 5.6 with a 70GB local directory of Web content. Images, PHP scripts etc.
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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
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ramesh
sushil
jonga
sudesh
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9. Shell Programming and Scripting
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.
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UPTIME(1) User Commands UPTIME(1)
NAME
uptime - Tell how long the system has been running.
SYNOPSIS
uptime [options]
DESCRIPTION
uptime gives a one line display of the following information. The current time, how long the system has been running, how many users are
currently logged on, and the system load averages for the past 1, 5, and 15 minutes.
This is the same information contained in the header line displayed by w(1).
System load averages is the average number of processes that are either in a runnable or uninterruptable state. A process in a runnable
state is either using the CPU or waiting to use the CPU. A process in uninterruptable state is waiting for some I/O access, eg waiting for
disk. The averages are taken over the three time intervals. Load averages are not normalized for the number of CPUs in a system, so a
load average of 1 means a single CPU system is loaded all the time while on a 4 CPU system it means it was idle 75% of the time.
OPTIONS
-p, --pretty
show uptime in pretty format
-h, --help
display this help text
-s, --since
system up since, in yyyy-mm-dd HH:MM:SS format
-V, --version
display version information and exit
FILES
/var/run/utmp
information about who is currently logged on
/proc process information
AUTHORS
uptime was written by Larry Greenfield <greenfie@gauss.rutgers.edu> and Michael K. Johnson <johnsonm@sunsite.unc.edu>
SEE ALSO
ps(1), top(1), utmp(5), w(1)
REPORTING BUGS
Please send bug reports to <procps@freelists.org>
procps-ng December 2012 UPTIME(1)