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1. HP-UX
I want to obtain memory consumption history on a HPUX machine.
I know I can access data from the last week with sar
sar -f /var/adm/sa/sa14
I do not know how to get memory usage with sar.
Are there any other ways?
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2. HP-UX
Dear All,
I want to find out top 15 memory consumption processes in HP UX. Can anyone give me any idea about it?
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3. HP-UX
Hi,
Can some one please tell me how do I generate a report of the Memory Consumption over a time period:
HP-UX B.11.31 U ia64 0440531406 unlimited-user license
I normally use glance to monitor memory in run time.
Note: I do not have root privileges.
Thanks
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4. UNIX for Dummies Questions & Answers
Hi
Is there any native commands or somewhere in the /proc files to get the machine's power consumption? I googled for a while and cannot really find this information
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5. UNIX for Advanced & Expert Users
Hello,
we are using AIX 6.1
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6. UNIX Desktop Questions & Answers
Hi All
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7. Solaris
hi
pmap, prstat and ps gives the RSS which is shared memory.
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8. AIX
Hi,
I have a problem with memory on AIX 5.3. On this server, we have JDE Edwards (ERP) and Oracle Database (9.2.0.7.0).
We have 4 Gb for physical memory and 3 Gb for paging space.
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9. HP-UX
I want to check the memory usuage on the HP-UX box.
print_manifest : gave me the information of the system configuration
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But on runtime I want to know what is the memory left.
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10. AIX
Hi,
how can I find out how many memory (physical and virtual) a thread uses at the moment? I know how to find out the Thread-ID, but not how to monitor it...
We use AIX 4.3.3 at th emoment.
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maxfiles_lim(5) File Formats Manual maxfiles_lim(5)
NAME
maxfiles_lim - hard maximum number of file descriptors per process
VALUES
Failsafe
Default
Allowed values
The minimum value allowed is 32. The maximum value allowed is 1048576, or 1M. The value is further constrained in that it must be equal
or greater than the soft limit,
Specify a positive integer value.
Recommended values
At runtime, a warning will be issued if the tunable is set to a value greater than 409600, or 400K. This is beyond the tested limit.
At runtime, a warning will be issued if the value is not a multiple of the file descriptor chunk (multiple of 8) size. This is not a seri-
ous warning, just an information message for the administrator.
DESCRIPTION
specifies the system hard limit for the number of file descriptors that a process is allowed to have for open files at any given time. It
is possible for a nonsuperuser process to increase its soft limit up to this hard limit.
Who Is Expected to Change This Tunable?
Anyone expecting to run applications using large numbers of file descriptors.
Restrictions on Changing
The tunable is dynamic (tuning will take effect immediately on the running system).
Dynamic changes affect all existing processes in the system except:
o Processes that have more file descriptors allocated than allowed by the new limit,
o Processes that have specifically set their limits through a call to or
When Should the Value of This Tunable Be Raised?
The tunable should be increased when large numbers of file descriptors are expected to be open by several processes.
What are the Side Effects of Raising the Value?
There is no immediate effect of raising the value of However, doing so allows any process to allocate more file descriptors, potentially
consuming more system memory.
When Should the Value of This Tunable Be Lowered?
The value should be lowered to limit the number of open file descriptors per process on a system and reduce system memory consumption.
What are the Side Effects of Lowering the Value?
Lowering the value of bounds memory consumption due to file descriptors for processes that are not already over the new limit.
What Other Tunable Values Should Be Changed at the Same Time?
The value assigned to must be less than or equal to the value of
Kernel checks during tunable setting ensure these restrictions.
WARNINGS
For values greater than 65535, compatibility for the obsolescent will be affected. For correct operation, all applications must use
instead of If the system still has applications using setting to 65535 or less will maintain compatibility, unless the process being
queried has used to change its maximum limit of open files to a value greater than 65535.
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by HP.
SEE ALSO
kctune(1M), sam(1M), setrlimit(2), gettune(2), settune(2), pstat(2), ulimit(2), maxfiles(5).
Tunable Kernel Parameters maxfiles_lim(5)