01-26-2009
Take a look at:
/proc/sys/vm
Quote:
root@www:/proc/sys/vm# ls
block_dump laptop_mode nr_hugepages panic_on_oom
dirty_background_ratio legacy_va_layout nr_overcommit_hugepages percpu_pagelist_fraction
dirty_expire_centisecs lowmem_reserve_ratio nr_pdflush_threads stat_interval
dirty_ratio max_map_count numa_zonelist_order swappiness
dirty_writeback_centisecs min_free_kbytes oom_kill_allocating_task vfs_cache_pressure
drop_caches min_slab_ratio overcommit_memory zone_reclaim_mode
hugepages_treat_as_movable min_unmapped_ratio overcommit_ratio
hugetlb_shm_group mmap_min_addr page-cluster
Maybe you can check around on the net and see if you can tune thse parameters to help you?
10 More Discussions You Might Find Interesting
1. Solaris
folks, hows everyone?
just upgraded my laptop running on solaris 10 by adding some extra RAM. I did notice some improvement (increase in speed) but could not be certain the new RAM has been accepted and all is well (was concerned a bit as i almost broke it while installing :-)) and didnt get any... (4 Replies)
Discussion started by: alikun
4 Replies
2. AIX
Dear
How i can know the ( RAM and CPU ) on unix. we use AIX operating system.
This is for security purposes. (10 Replies)
Discussion started by: abu_hassan
10 Replies
3. Solaris
Hi
i have a requirement when i have to check the solaris 9 os resources utilised by the applications( Oracle, veritas cluster, veritas net backup )
what are the commands i should use or any utility to check the resources
Regards (7 Replies)
Discussion started by: maooah
7 Replies
4. UNIX for Dummies Questions & Answers
Hi
can anyone please help me, how to know RAM specification in unix? (4 Replies)
Discussion started by: palash2k
4 Replies
5. Red Hat
Hi,
On server 64bit Hw Arch , Linux 5.0(32bit) is installed it is showing only 3gb of ram though physical is 16gb
can u give me idea why? (4 Replies)
Discussion started by: manoj.solaris
4 Replies
6. Linux
Hi
one of our applications that runs on our Linux server leaks memory resulting in Ram that was used by the program not being released back to the operating system once a file has been processed. the result is over a very short period virtual all the memory has been used. an example currently
... (8 Replies)
Discussion started by: treds
8 Replies
7. Red Hat
Can anyone let me know whether there is a command to know the RAM capacity in GB?
I have tried cat /proc/meminfo and free.But its not in GB. I need to use it in script.
Thanks and Regards (4 Replies)
Discussion started by: Rupaa
4 Replies
8. UNIX for Dummies Questions & Answers
I have written a script that triggers a mail if the server load average goes beyond a specific value.
The mail contains following field
Current Load average.
Top 10 CPU utilized processes.
ps -auxf | sort -nr -k 3 | head -10
Top 10 Memory Utilized processes.
ps -auxf | sort -nr -k 4 | head... (1 Reply)
Discussion started by: pinga123
1 Replies
9. Solaris
Hi,
I am unable to find remaining space on solaris 10. below is output.
I am facing this issue on zone server.
bash-3.00# df -h /
Filesystem size used avail capacity Mounted on
/ 59G 59G 0K 100% /
bash-3.00# pwd
/
bash-3.00# du -sh *
1K File_Stores
19K TT_DB
9K app
1K bin... (4 Replies)
Discussion started by: manoj.solaris
4 Replies
10. UNIX for Dummies Questions & Answers
hi,
i m working on my ubuntu 12.10 i wanted to update my desktop's RAM. so
kindly let me know how i get below details (thru commands in terminal)
1) what is the processor am using currently
2) what is the RAM am using currently
3) max how much i can upgrade my RAM (4 Replies)
Discussion started by: anandpasunoori
4 Replies
LEARN ABOUT OPENDARWIN
network_namespaces
NETWORK_NAMESPACES(7) Linux Programmer's Manual NETWORK_NAMESPACES(7)
NAME
network_namespaces - overview of Linux network namespaces
DESCRIPTION
Network namespaces provide isolation of the system resources associated with networking: network devices, IPv4 and IPv6 protocol stacks, IP
routing tables, firewall rules, the /proc/net directory (which is a symbolic link to /proc/PID/net), the /sys/class/net directory, various
files under /proc/sys/net, port numbers (sockets), and so on.
A physical network device can live in exactly one network namespace. When a network namespace is freed (i.e., when the last process in the
namespace terminates), its physical network devices are moved back to the initial network namespace (not to the parent of the process).
A virtual network (veth(4)) device pair provides a pipe-like abstraction that can be used to create tunnels between network namespaces, and
can be used to create a bridge to a physical network device in another namespace. When a namespace is freed, the veth(4) devices that it
contains are destroyed.
Use of network namespaces requires a kernel that is configured with the CONFIG_NET_NS option.
SEE ALSO
nsenter(1), unshare(1), clone(2), veth(4), proc(5), sysfs(5), namespaces(7), user_namespaces(7), brctl(8), ip(8), ip-address(8), ip-
link(8), ip-netns(8), iptables(8), ovs-vsctl(8)
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2018-02-02 NETWORK_NAMESPACES(7)