Hello,
The last line of prstat shows load average.
I am unable to figure out what actually it is.
I have read the man pages and also googled, all for no use.
Can somebody help me, as to what should be the avg. load of the system for best performance and how is this load of prstat calculated. (6 Replies)
Hi,
I need a script which uses prstat command to check the performance . if a load averages crosses some threshold means I should receive the mail. this script should always run in back ground.
Kindly help me on this. (1 Reply)
Hi All,
Operating System and Version: SunOS,Solaris 10 sparc(64 bit)
RDBMS Version: 10.2.0.4.0
But the prstat logs of my system shows:-
NPROC USERNAME SWAP RSS MEMORY TIME CPU
83 cemsbin 5204M 3604M 22% 53:46:00 6.7%
2 adm 244M 240M 1.5% 15:13:53 3.5%
77 oracle 17G 10G 65% 4:24:47... (0 Replies)
Good Evening everyone,
I am confused about prstat O/P as it shows memory values which are different from actual value.Below is the O/P of prstat command and swap commands.
NPROC USERNAME SIZE RSS MEMORY TIME CPU
48 root 2113M 1590M 1.2% 45:09.39 32%
31 daemon ... (7 Replies)
hi all,
was trying to figure out how busy my app was by looking at the performance of the app server. did a 'prstat -s rss' command to find the app servers using most memory.
Found a command 'prstat -m' which is meant to show more details on each pid but the output of this command... (1 Reply)
hi all,
have a ksh script where i am doing a prstat -m -u osuser 1 1 >> $FILE_NAME but for some reason it only writes 15 lines wheres when i run the same command manually from command prompt it prints out 60 lines.
why is it not writing the full 60 lines to the file ??
ta. (1 Reply)
Hi,
I know how to figure out the list of PID from my application name :
ptree `pgrep MyApp` | awk '{print $1}'
But I dont know how to pipe it for prstat -p <pidlist>
ptree `pgrep MyApp` | awk '{print $1}' | prstat -p ???
I would like to monitor every ptree PID from my application. ... (4 Replies)
trying to have prstat into a file on a Solaris machine.
Would like to have the prstat run from a cron every 30 min.
print 300 lines+ date.
Date is not printed, only the prstat, and ksh does not end, it stays running...
#!/bin/ksh
# ----------------------------------------------------
#... (4 Replies)
On Solaris 8, when I try to run prstat 30 5 as a background process, the command exits 1-2 seconds after it's initiated instead of the 30 seconds I specified.
It runs fine in interactive mode.
Is there a workaround to this I could use? (Upgrading the package is not an option)
A link to... (1 Reply)
Discussion started by: Devyn
1 Replies
LEARN ABOUT FREEBSD
tail
TAIL(1) BSD General Commands Manual TAIL(1)NAME
tail -- display the last part of a file
SYNOPSIS
tail [-F | -f | -r] [-q] [-b number | -c number | -n number] [file ...]
DESCRIPTION
The tail utility displays the contents of file or, by default, its standard input, to the standard output.
The display begins at a byte, line or 512-byte block location in the input. Numbers having a leading plus ('+') sign are relative to the
beginning of the input, for example, ``-c +2'' starts the display at the second byte of the input. Numbers having a leading minus ('-') sign
or no explicit sign are relative to the end of the input, for example, ``-n 2'' displays the last two lines of the input. The default start-
ing location is ``-n 10'', or the last 10 lines of the input.
The options are as follows:
-b number
The location is number 512-byte blocks.
-c number
The location is number bytes.
-f The -f option causes tail to not stop when end of file is reached, but rather to wait for additional data to be appended to the
input. The -f option is ignored if the standard input is a pipe, but not if it is a FIFO.
-F The -F option implies the -f option, but tail will also check to see if the file being followed has been renamed or rotated. The
file is closed and reopened when tail detects that the filename being read from has a new inode number.
If the file being followed does not (yet) exist or if it is removed, tail will keep looking and will display the file from the begin-
ning if and when it is created.
The -F option is the same as the -f option if reading from standard input rather than a file.
-n number
The location is number lines.
-q Suppresses printing of headers when multiple files are being examined.
-r The -r option causes the input to be displayed in reverse order, by line. Additionally, this option changes the meaning of the -b,
-c and -n options. When the -r option is specified, these options specify the number of bytes, lines or 512-byte blocks to display,
instead of the bytes, lines or blocks from the beginning or end of the input from which to begin the display. The default for the -r
option is to display all of the input.
If more than a single file is specified, each file is preceded by a header consisting of the string ``==> XXX <=='' where XXX is the name of
the file unless -q flag is specified.
EXIT STATUS
The tail utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
To display the last 500 lines of the file foo:
$ tail -n 500 foo
Keep /var/log/messages open, displaying to the standard output anything appended to the file:
$ tail -f /var/log/messages
SEE ALSO cat(1), head(1), sed(1)STANDARDS
The tail utility is expected to be a superset of the IEEE Std 1003.2-1992 (``POSIX.2'') specification. In particular, the -F, -b and -r
options are extensions to that standard.
The historic command line syntax of tail is supported by this implementation. The only difference between this implementation and historic
versions of tail, once the command line syntax translation has been done, is that the -b, -c and -n options modify the -r option, i.e., ``-r
-c 4'' displays the last 4 characters of the last line of the input, while the historic tail (using the historic syntax ``-4cr'') would
ignore the -c option and display the last 4 lines of the input.
HISTORY
A tail command appeared in PWB UNIX.
BSD March 16, 2013 BSD