[Crash-utility] NEVER MIND: Was: Crash dump of RHEL5, what does "SHARED" memory represent in kmem -i output?

[James Washer]

From the source I find
 /*
* Get shared pages from dump_mem_map(). Note that this is done
* differently than the kernel -- it just tallies the non-reserved
* pages that have a count of greater than 1.
*/


On Jul 15, 2011, at 8:56 AM, James Washer wrote:

> In the data below, what memory usage is reported as SHARED? Does this imply SysV shared memory, or pages shared between processes, or something else all together?
> 
> 
> kmem-i
> 
>              PAGES        TOTAL      PERCENTAGE
> TOTAL MEM  9228936      35.2 GB         ----
>      FREE    20260      79.1 MB    0% of TOTAL MEM
>      USED  9208676      35.1 GB   99% of TOTAL MEM
>    SHARED  9051322      34.5 GB   98% of TOTAL MEM
>   BUFFERS      151       604 KB    0% of TOTAL MEM
>    CACHED     2455       9.6 MB    0% of TOTAL MEM
>      SLAB    27419     107.1 MB    0% of TOTAL MEM
> 
> TOTAL HIGH        0            0    0% of TOTAL MEM
> FREE HIGH        0            0    0% of TOTAL HIGH
> TOTAL LOW  9228936      35.2 GB  100% of TOTAL MEM
>  FREE LOW    20260      79.1 MB    0% of TOTAL LOW
> 
> TOTAL SWAP  4194302        16 GB         ----
> SWAP USED  2294571       8.8 GB   54% of TOTAL SWAP
> SWAP FREE  1899731       7.2 GB   45% of TOTAL SWAP
> 
> 
> 
> - jim
> 
> 
> 
> 
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 - jim



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