8 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a project tree like that.
after running find command with the -no -empty option, i am able to have a list of non empty directory
DO_MY_SEARCH="find . -type d -not -empty -print0"
MY_EXCLUDE_DIR1=" -e NOT_IN_USE -e RTMAP -e NOT_USEFULL "
echo " " > $MY_TEMP_RESULT_1
while... (2 Replies)
Discussion started by: jcdole
2 Replies
2. Solaris
I need help with projects in Solaris 10, sparc system; and I am fairly new at this.
I know I can add new parameters for projects in /etc/projects or
projmod -a -K "task.max-lwps=(priv,100,deny)" myproject
I know that there are current process using that old attribute.
Logging the user out and... (3 Replies)
Discussion started by: br1an
3 Replies
3. News, Links, Events and Announcements
A new project was posted on your project board.
Project title: Bash Shell Tutoring
Estimated Budget:
$50/hr
Start date:
Immediately
Required skills:
Linux, Bash, Shell, UNIX
I work as a datawarehouse designer and developer.
Although I usually stick to the role of an analyst,... (0 Replies)
Discussion started by: Neo
0 Replies
4. Shell Programming and Scripting
Hi ! all I am just trying to check range in my datafile
pls tell me why its resulting wrong
admin@IEEE:~/Desktop$ cat test.txt
0 28.4
5 28.4
10 28.4
15 28.5
20 28.5
25 28.6
30 28.6
35 28.7
40 28.7
45 28.7
50 28.8
55 28.8
60 28.8
65 28.1... (2 Replies)
Discussion started by: Akshay Hegde
2 Replies
5. Solaris
i have two doubts..
1. what is the use /etc/project file. i renamed this file and when i tried to switch user or login with some user account the login was happening slowly. but when i renamed it to original name it was working fine... why so?
2. unix already has useradd and grouadd for... (4 Replies)
Discussion started by: chidori
4 Replies
6. Shell Programming and Scripting
BASH on Solaris
Hi All,
I posted a problem whereby I was looking to Kill a background (calling Send)mail) process after a certain time had elapsed.
A User Scottn very kindly provided a useful function to do this as below
CheckAndKill()
{
sleep "$EMAIL_TIMEOUT_THEN_KILL"
... (2 Replies)
Discussion started by: satnamx
2 Replies
7. Shell Programming and Scripting
Hi ,
I am interested in getting some new projects on shell scripting . Can some one suggest me some bidding site where I can get the projects.
Regards (0 Replies)
Discussion started by: himvat
0 Replies
8. Solaris
We have a system running ssh. When a user logs in, they do not get the project they are assigned to (they run under "system"). I verify the project using the command "ps -e -o user,pid,ppid,args,project". If you do a "su - username", the user does get the project they are assigned to (and all... (2 Replies)
Discussion started by: kurgan
2 Replies
Kstat(3PERL) Perl Library Functions Kstat(3PERL)
NAME
Kstat - Perl tied hash interface to the kstat facility
SYNOPSIS
use Sun::Solaris::Kstat;
Sun::Solaris::Kstat->new();
Sun::Solaris::Kstat->update();
Sun::Solaris::Kstat->{module}{instance}{name}{statistic}
DESCRIPTION
Kernel statistics are categorized using a 3-part key consisting of the module, the instance, and the statistic name. For example, CPU
information can be found under cpu_stat:0:cpu_stat0, as in the above example. The method Sun::Solaris::Kstat->new() creates a new 3-layer
tree of Perl hashes with the same structure; that is, the statistic for CPU 0 can be accessed as $ks->{cpu_stat}{0}{cpu_stat0}. The fourth
and lowest layer is a tied hash used to hold the individual statistics values for a particular system resource.
For performance reasons, the creation of a Sun::Solaris::Kstat object is not accompanied by a following read of all possible statistics.
Instead, the 3-layer structure described above is created, but reads of a statistic's values are done only when referenced. For example,
accessing $ks->{cpu_stat}{0}{cpu_stat0}{syscall} will read in all the statistics for CPU 0, including user, system, and wait times, and the
other CPU statistics, as well as the number of system call entries. Once you have accessed a lowest level statistics value, calling
$ks->update() will automatically update all the individual values of any statistics you have accessed.
There are two values of the lowest-level hash that can be read without causing the full set of statistics to be read from the kernel. These
are "class", which is the kstat class of the statistics, and "crtime"n, which is the time that the kstat was created. See kstat(3KSTAT) for
full details of these fields.
Methods
new() Create a new kstat statistics hierarchy and return a reference to the top-level hash. Use it like any normal hash to access the
statistics.
update() Update all the statistics that have been accessed so far. In scalar context, update() returns 1 if the kstat structure has
changed, and 0 otherwise. In list context, update() returns references to two arrays: the first holds the keys of any kstats
that have been added, and the second holds the keys of any kstats that have been deleted. Each key will be returned in the form
"module:instance:name".
EXAMPLES
Example 1 Sun::Solaris::Kstat example
use Sun::Solaris::Kstat;
my $kstat = Sun::Solaris::Kstat->new();
my ($usr1, $sys1, $wio1, $idle1) =
@{$kstat->{cpu_stat}{0}{cpu_stat0}}{qw(user kernel
wait idle)};
print("usr sys wio idle
");
while(1) {
sleep 5;
if ($kstat->update()) {
print("Configuration changed
");
}
my ($usr2, $sys2, $wio2, $idle2) =
@{$kstat->{cpu_stat}{0}{cpu_stat0}}{qw(user kernel
wait idle)};
printf(" %.2d %.2d %.2d %.2d
",
($usr2 - $usr1) / 5, ($sys2 - $sys1) / 5,
($wio2 - $wio1) / 5, ($idle2 - $idle1) / 5);
$usr1 = $usr2;
$sys1 = $sys2;
$wio1 = $wio2;
$idle1 = $idle2;
}
SEE ALSO
perl(1), kstat(1M), kstat(3KSTAT), kstat_chain_update(3KSTAT), kstat_close(3KSTAT), kstat_open(3KSTAT), kstat_read(3KSTAT)
NOTES
As the statistics are stored in a tied hash, taking additional references of members of the hash, such as
my $ref = ks->{cpu_stat}{0}{cpu_stat0}{syscall};
print("$$ref
");
will be recorded as a hold on that statistic's value, preventing it from being updated by refresh(). Copy the values explicitly if persis-
tence is necessary.
Several of the statistics provided by the kstat facility are stored as 64-bit integer values. Perl 5 does not yet internally support 64-bit
integers, so these values are approximated in this module. There are two classes of 64-bit value to be dealt with:
64-bit intervals and times These are the crtime and snaptime fields of all the statistics hashes, and the wtime, wlentime, wlastupdate,
rtime, rlentime and rlastupdate fields of the kstat I/O statistics structures. These are measured by the
kstat facility in nanoseconds, meaning that a 32-bit value would represent approximately 4 seconds. The
alternative is to store the values as floating-point numbers, which offer approximately 53 bits of precision
on present hardware. 64-bit intervals and timers as floating point values expressed in seconds, meaning that
time-related kstats are being rounded to approximately microsecond resolution.
64-bit counters It is not useful to store these values as 32-bit values. As noted above, floating-point values offer 53 bits
of precision. Accordingly, all 64-bit counters are stored as floating-point values.
SunOS 5.11 21 Jul 2005 Kstat(3PERL)