Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to change allocated memory for a process?
Top Forums UNIX for Beginners Questions & Answers How to change allocated memory for a process? Post 303034115 by RudiC on Thursday 18th of April 2019 03:45:12 PM
Old 04-18-2019
The only 2062780 I see in your code snippet is being written to the kernel parameter "threads-max", the maximum allowed processes / threads on the system. What makes you think this has to do with memory allocation?
 

10 More Discussions You Might Find Interesting

1. Solaris

Memory allocated

Hi, How to find out what is the maximum memory allocated to TOMCAT server in SunOS 5.8? The Tomcat server crashes down during peak times.... Regards (1 Reply)
Discussion started by: baanprog
1 Replies

2. UNIX for Advanced & Expert Users

process memory change in unix

Hello! I was wondering if I could trouble all your experts with a couple questions regarding checking memory usage changes during the run time in the specific program (process) under UNIX. 1. After the program starts running, is ps the best way to tell the total memory usage at the any time? ... (2 Replies)
Discussion started by: aginger
2 Replies

3. AIX

amount of memory allocated to large page

We just set up a system to use large pages. I want to know if there is a command to see how much of the memory is being used for large pages. For example if we have a system with 8GB of RAm assigned and it has been set to use 4GB for large pages is there a command to show that 4GB of the *GB is... (1 Reply)
Discussion started by: daveisme
1 Replies

4. Programming

Why memory allocated through malloc should be freed ?

Actually for a process to run it needs text, stack , heap and data segments. All these find a place in the physical memory. Out of these 4 only heap does exist after the termination of the process that created it. I want to know the exact reason why this happens. Also why the other process need to... (20 Replies)
Discussion started by: karthiktceit
20 Replies

5. HP-UX

how to find size of memory allocated to a pointer?

Hi, Am new to HP UX , is there a way to find out the size of memory allocated to a pointer on hp ux? For example we can use the _msize() on windows to find the size of memory allocated to a pointer . #include <stdio.h> #include <malloc.h> void main() { void *buffer; ... (0 Replies)
Discussion started by: Wkdunreal
0 Replies

6. UNIX for Dummies Questions & Answers

change the memory address of ld.linux-so in a dynamically linked process

hi, For some special reason , I'd like to control the memory address for the shared libraries in my dynamically linked process. And it is the "ld" which interpret the dynamically linked library, and in my system, the "ld-linux.so.2" is put at 0x00812000. Then I use "prelink -r" command to change... (0 Replies)
Discussion started by: zerocool_08
0 Replies

7. Linux

change the memory address of ld.linux-so in a dynamically linked process

hi, For some special reason , I'd like to control the memory address for the shared libraries in my dynamically linked process. And it is the "ld" which interpret the dynamically linked library, and in my system, the "ld-linux.so.2" is put at 0x00812000. Then I use "prelink -r" command to... (3 Replies)
Discussion started by: zerocool_08
3 Replies

8. Programming

Regarding the maximum memory allocated by malloc() function on HP-UX B11.11

In a 'C' program,when I am trying to allocate memory with the help of malloc () function, it is allocating the memory up to a certain limit for e.g. in my case, it is 670 MB (approx). malloc() returns NULL if I allocate more than this amount of memory.When I tried to allocate memory in chunks of... (1 Reply)
Discussion started by: vipinsachan
1 Replies

9. Solaris

[DOUBT] Memory high in idle process on Solaris 10 (Memory Utilization > 90%)

Hi Experts, Our servers running Solaris 10 with SAP Application. The memory utilization always >90%, but the process on SAP is too less even nothing. Why memory utilization on solaris always looks high? I have statement about memory on solaris, is this true: Memory in solaris is used for... (4 Replies)
Discussion started by: edydsuranta
4 Replies

10. Red Hat

KVM/Qemu allocated memory not showing in guest

So we have a RHEL 7.6 workstation with 128 gigs of ram. The OS sees all the ram and 80 cors (40 HT) We have 1 guest with 8 CPUs and 32gigs of ram running RHEL 7.6 workstation as well. We are trying to create another guest with 64 CPUs and 80 gigs of ram. We setup the system using... (0 Replies)
Discussion started by: joeg1484
0 Replies

LEARN ABOUT HPUX

nkthread

nkthread(5)							File Formats Manual						       nkthread(5)

NAME

       nkthread - limits the number of threads allowed to run simultaneously

VALUES

   Failsafe
   Default
       or

   Allowed values
       must be greater than

       must be greater than

       This may be set higher, but more will not be used.

   Recommended values
       Unless there are heavily threaded applications on the system, the default formula is adequate if is tuned correctly.

DESCRIPTION

       The tunable controls the absolute number of threads allowed on a system at any given time.  Increasing it will allow more threads, and low-
       ering it will restrict the number of threads.

       It can be determined that is too low when the message is seen in the message buffer.  The message can be read via or This message indicates
       that  an  application  was  unable  to  create  a thread.  Setting too low can cause application failures due to an inability to create new
       threads or fork new processes.

       It can be determined how many threads have been used simultaneously prior to the above message by calling  and  examining  the  This  field
       indicates the "high water" mark of the number of threads that have been simultaneously used.

   Who Is Expected to Change This Tunable?
       Anyone expecting to run large numbers of threads.

   Restrictions on Changing
       None.  This tunable is dynamic.

   When Should the Value of This Tunable Be Raised?
       This value should be increased, either directly or as a result of tuning on most systems that are running many threads or processes.

   What are the Side Effects of Raising the Value?
       None.

   When Should the Value of This Tunable Be Lowered?
       The  value  should  be  lowered only to limit the number of threads on the system, or when there is memory pressure and the value of is far
       above the expected usage.

   What are the Side Effects of Lowering the Value?
       Increased risk of application failure do to the inability to create new threads or fork new processes.

   What Other Tunable Values Should Be Changed at the Same Time?
       None.

WARNINGS

       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

       max_thread_proc(5), nproc(5).

							     Tunable Kernel Parameters						       nkthread(5)
All times are GMT -4. The time now is 03:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy