Hi, I have various applications on my unix server and one of them relies on a process that needs to start in order to print however the process is not starting at all. I think the problem lies in the shared memory. Does anyone have the commands to flush the shared memory and can anyone tell me if... (2 Replies)
Hi ,
As I am new to Linux server, I am facing some doubts like: On linux server virtual memory usage goes to 99%, but I have Threshold limit of 95%. So it crossed the threshold limit and alarmd.
Yesterday I moniterd the server using TOP command, and found some of Tibco process was consuming... (1 Reply)
Hi ,
As I am new to Linux server, I am facing some doubts like: On linux server virtual memory usage goes to 99%, but I have Threshold limit of 95%. So it crossed the threshold limit and alarmd.
Yesterday I moniterd the server using TOP command, and found some of Tibco process was consuming... (4 Replies)
I guess what I mean is: is there something like unalias to clear functions defined by sourcing a script or config/alias file from memory?
Is it necessary to start a new terminal session, or can it be done with a command? I tried "function somefunc {}" but bash told me it hit an "unexpected... (0 Replies)
Hi,
I'm running a debian lenny 1GB ram, but with a high I/O. This server has 400IOPS and 3MB/s sustain. So, I noted cached memory use 800MB, buffered memory use 50MB, and no free memory is available. Questions:
What does mean such a high cached memory?
Who's using this cached memory?
Is... (3 Replies)
18:45:47 # free -m
total used free shared buffers cached
Mem: 96679 95909 770 0 1530 19550
-/+ buffers/cache: 74828 21851
Swap: 12287 652 11635
Hi all. The below output is from a RHEL 4.5... (0 Replies)
Hi All,
could any one point out any open source test-suites for "File cache" testing and as well as performance test suites for the same. Currently my system is up with Linux/ext4.
Regards
Manish (0 Replies)
Right now i am using Red Hat Enterprise Linux AS release 4 and cache memory occupying around 1.5GB mentioned below,
total used free shared buffers cached
Mem: 2026 2021 5 0 161 1477
-/+ buffers/cache: 382 1644 ... (4 Replies)
hi all,
i have noticed that my server has 64 GB RAM and i have application in this server but the server has free memory only 15% and utilized 85% however it didn't eat from swap .
does any parameter can be configured in kernel to make the system clear memory from cache like linux
i found... (4 Replies)
Discussion started by: maxim42
4 Replies
LEARN ABOUT SUSE
kmem_cache_create
KMEM_CACHE_CREATE(9) Memory Management in Linux KMEM_CACHE_CREATE(9)NAME
kmem_cache_create - Create a cache.
SYNOPSIS
struct kmem_cache * kmem_cache_create(const char * name, size_t size, size_t align, unsigned long flags, void (*ctor) (void *));
ARGUMENTS
name
A string which is used in /proc/slabinfo to identify this cache.
size
The size of objects to be created in this cache.
align
The required alignment for the objects.
flags
SLAB flags
ctor
A constructor for the objects.
DESCRIPTION
Returns a ptr to the cache on success, NULL on failure. Cannot be called within a int, but can be interrupted. The ctor is run when new
pages are allocated by the cache.
name must be valid until the cache is destroyed. This implies that the module calling this has to destroy the cache before getting
unloaded. Note that kmem_cache_name is not guaranteed to return the same pointer, therefore applications must manage it themselves.
The flags are
SLAB_POISON - Poison the slab with a known test pattern (a5a5a5a5) to catch references to uninitialised memory.
SLAB_RED_ZONE - Insert `Red' zones around the allocated memory to check for buffer overruns.
SLAB_HWCACHE_ALIGN - Align the objects in this cache to a hardware cacheline. This can be beneficial if you're counting cycles as closely
as davem.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 KMEM_CACHE_CREATE(9)