11-19-2001
maxuprc = Max number of user processes
nfile = Max number of open files
semmni = Number of semaphore identifiers
semmnu = Number of semaphore undo structures
semmns = Max. number of semaphores
shmmni = Number of Shared memory Identifiers
These are all kernel tunable parameters. You can also get descriptions for these on HP by using SAM and going into Kernel Configuration.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello All,
can someone clarify finally what are the kernel parameter settings
for ORACLE9i on SOLARIS9 ?
the following first part is copy paste from the sun's web... (2 Replies)
Discussion started by: grep
2 Replies
2. Linux
ok so I just installed fedora core 6 on my dell inspiron 700m and I go to boot into linux and I get this error. Has anyone seen this before?
I also had XP Pro and Vista installed on this pc prior to putting fedora core 6 on the machine. I'm trying to setup a triple boot system.
Please Help... (2 Replies)
Discussion started by: dave043
2 Replies
3. Programming
hi all!
i have developed a mechanism in system.c to count how many times each kernel call is called. The results are held in an array in system.c . What i want to do is to create a new kernel call which will print this array. I need help in passing the array from system.c to the new kernel call. ... (5 Replies)
Discussion started by: aureliano
5 Replies
4. SuSE
Hi All,
Is there a max number of slabs that can be used per kernel module? I'm having a tough time finding out that kind of information, but the array 'node_zonelists' (mmzone.h) has a size of 5. I just want to avoid buffer overruns and other bad stuff.
Cheers,
Brendan (4 Replies)
Discussion started by: Brendan Kennedy
4 Replies
5. Linux
supermicro(dual core) server getting rebooted after "decompressing the kernel;booting the kernel" message comes.
I tried giving acpi=off to the kernel command line but same problem.It shows everything ok and no problem with memory and processors and power supplies.Wt could be the reason?
It has... (1 Reply)
Discussion started by: pankajd
1 Replies
6. Solaris
Hi gurus
Could anybody tell me which file is read by kernel to set its default system kernal parameters values in solaris. Here I am not taking about /etc/system file which is used to load kernal modules or to change any default system kernal parameter value
Is it /dev/kmem file or something... (1 Reply)
Discussion started by: girish.batra
1 Replies
7. UNIX for Advanced & Expert Users
Hi all,
I have four (4) different UNIX flavours and I want to know whether the following commands are correct with respect to wanting to check on what are my current kernel parameter settings.
I just want to clear the doubts hanging over my head whether the commands below are the right ones... (2 Replies)
Discussion started by: newbie_01
2 Replies
8. UNIX for Advanced & Expert Users
I have solaris 9 system.
I want to change the "tcp_conn_req_max_q" setting in /etc/system.
whats the correct way,
set ndd:tcp_conn_req_max_q=2048
or
set tcp:tcp_conn_req_max_q=2048
thanks (1 Reply)
Discussion started by: chaandana
1 Replies
9. Linux
Hi everyone,
I am trying to prevent the ehci_hcd kernel module to load at boot time.
Here's what I've tried so far:
1) Add the following line to /etc/modprobe.d/blacklist.conf (as suggested here):
2) Blacklisted the module by adding the following string to
3) Tried to blacklist the module... (0 Replies)
Discussion started by: gacanepa
0 Replies
sema(5) File Formats Manual sema(5)
NAME
sema - enable or disable System V IPC semaphores at boot time
DESCRIPTION
The tunable is obsolete. The System V IPC semaphore subsystem is always enabled.
Overview
System V IPC is comprised of mechanisms for arbitrary processes to send and receive data messages, share virtual address space and use sem-
aphores to synchronize execution.
A System V semaphore is a synchronization method for user processes to synchronize or serialize access to common data and resources. Each
semaphore "set" has an ID, but each set can contain one or more independent semaphores.
Semaphore sets are created or initially accessed through using an application-specified "key", which can be generated by Operations on the
set are performed through and Semaphore sets are removed through or the command.
WARNINGS
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 AT&T.
SEE ALSO
ipcs(1), ipcrm(1), semget(2), semop(2), semctl(2), semaem(5), semmni(5), semmns(5), semmnu(5), semmsl(5), semume(5), semvmx(5),
sysv_hash_locks(5).
Tunable Kernel Parameters sema(5)