I would like to know what command should be used to find the real memory used by a process in unix i tried top but its not listing the correct usage of memory i also tried sar.prstst,vmstat none of these commands are working in our server,can some one help me out
hi,
i want to know cpu utilizatiion per process per cpu..for single processor also if multicore in linux ..to use these values in shell script to kill processes exceeding cpu utilization.ps (pcpu) command does not give exact values..top does not give persistant values..psstat,vmstat..does njot... (3 Replies)
Hi all.
Sorry to express my questions wrongly in my early post,I repost my question again here.
My pc has dual core, I wirte an application with two process, parents process and child process.
My quetion is
how to realize :if the child process is on core 0,it will tell me I'm on core 0,if it... (1 Reply)
hi frnds,
I want to monitor a particular process very closly on how much memory it is taking. i tried with TOP and PRSTAT commands that is not giving what exactly i need. In my application, there is a memory leak happening, i want to know when it is occuering, means which transcation is... (9 Replies)
Hi,
I need help to write a script which will monitor disk utilization.
Please suggest the best approach to achive this.
I am thinking of having sleep inside the script which will run for(eg.) 60 secs and then disk utilization will be checked and depends on the % usage of disk mail will... (1 Reply)
Hello,
How to we typically monitor the % of utilization of network cards on a Unix box,basically the % utilization of the bytes transfered of the network card. This is required on all the flavours of OS - HP, AIX, RHEL, Sun etc.
Please let me know.
Thanks. (1 Reply)
Hi,
any commande on AIX 6.1 that shows me total CPU utilization ?
I saw curt in documentation but there should be a trace file before.
Thank you. (1 Reply)
I am trying to read the Sparc HW counter using the following command:
cpustat -c Instr_cnt .1This command will be running forever (for some time until interrupted by user). Sample output is:
time cpu event pic1
1.011 0 tick 6450
1.011 1 tick ... (10 Replies)
Hi,
i am new to linux/RHEL 6.0 and i have two questions.
1) How to get the CPU utilization and Memory Utilization of all Services running currently?
2) How to get the CPU utilization and Memory Utilization of all Applications running currently?
Please help me to find the script.
... (2 Replies)
Discussion started by: nossam
2 Replies
LEARN ABOUT LINUX
sa2
sar(1M) System Administration Commands sar(1M)NAME
sar, sa1, sa2, sadc - system activity report package
SYNOPSIS
/usr/lib/sa/sadc [ t n] [ofile]
/usr/lib/sa/sa1 [ t n]
/usr/lib/sa/sa2 [-aAbcdgkmpqruvwy] [-e time] [-f filename] [-i sec] [-s time]
DESCRIPTION
System activity data can be accessed at the special request of a user (see sar(1)) and automatically, on a routine basis, as described
here. The operating system contains several counters that are incremented as various system actions occur. These include counters for CPU
utilization, buffer usage, disk and tape I/O activity, TTY device activity, switching and system-call activity, file-access, queue activ-
ity, inter-process communications, and paging. For more general system statistics, use iostat(1M), sar(1), or vmstat(1M).
sadc and two shell procedures, sa1 and sa2, are used to sample, save, and process this data.
sadc, the data collector, samples system data n times, with an interval of t seconds between samples, and writes in binary format to ofile
or to standard output. The sampling interval t should be greater than 5 seconds; otherwise, the activity of sadc itself may affect the sam-
ple. If t and n are omitted, a special record is written. This facility can be used at system boot time, when booting to a
multi-user state, to mark the time at which the counters restart from zero. For example, when accounting is enabled, the svc:/sys-
tem/sar:default service writes the restart mark to the daily data file using the command entry:
su sys -c "/usr/lib/sa/sadc /var/adm/sa/sa'date +%d'"
The shell script sa1, a variant of sadc, is used to collect and store data in the binary file /var/adm/sa/sadd, where dd is the current
day. The arguments t and n cause records to be written n times at an interval of t seconds, or once if omitted. The following entries in
/var/spool/cron/crontabs/sys will produce records every 20 minutes during working hours and hourly otherwise:
0 * * * 0-6 /usr/lib/sa/sa1
20,40 8-17 * * 1-5 /usr/lib/sa/sa1
See crontab(1) for details.
The shell script sa2, a variant of sar, writes a daily report in the file /var/adm/sa/sardd. See the OPTIONS section in sar(1) for an
explanation of the various options. The following entry in /var/spool/cron/crontabs/sys will report important activities hourly during the
working day:
5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A
FILES
/tmp/sa.adrfl address file
/var/adm/sa/sadd Daily data file
/var/adm/sa/sardd Daily report file
/var/spool/cron/crontabs/sys
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWaccu |
+-----------------------------+-----------------------------+
SEE ALSO crontab(1), sag(1), sar(1), svcs(1), timex(1), iostat(1M), svcadm(1M), vmstat(1M), attributes(5), smf(5)
System Administration Guide: Basic Administration
NOTES
The sar service is managed by the service management facility, smf(5), under the service identifier:
svc:/system/sar
Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). The ser-
vice's status can be queried using the svcs(1) command.
SunOS 5.10 20 Aug 2004 sar(1M)