cat /proc/meminfo nutyness, or is it my ignorance

Matthew (matthew@mattshouse.com)
Wed, 11 Aug 1999 21:01:47 -0500

This is just to ease my conscience, I hope. I run a large production
Oracle database on kernel 2.2.11 and get some strange meminfo numbers.

total: used: free: shared: buffers: cached:
Mem: 264110080 262406144 1703936 2211295232 21000192 36835328
Swap: 814178304 6352896 807825408
MemTotal: 257920 kB
MemFree: 1664 kB
MemShared: 2159468 kB <------------------- crazyness?
Buffers: 20508 kB
Cached: 35972 kB
SwapTotal: 795096 kB
SwapFree: 788892 kB

I have 256M memory and 800M swap. This is a stock kernel. Should memshared
really be > 2 Gig? Perhaps I just don't know what memshared means. Enlighten.

BTW, here's an ipcs:

------ Shared Memory Segments --------
key shmid owner perms bytes nattch status
0x00000000 0 oradba 640 49152 81
0x00000000 1 oradba 640 28672000 81
0x00000000 2 oradba 640 21504000 81
0x00000000 3 oradba 640 32260096 81
0x00000000 4 oradba 640 32251904 81
0xe6ed9ca0 5 oradba 640 18010112 81

------ Semaphore Arrays --------
key semid owner perms nsems status
0x00000000 0 oradba 640 32
0x00000000 129 oradba 640 32
0x00000000 130 oradba 640 32
0x00000000 131 oradba 640 32
0x00000000 132 oradba 640 32
0x00000000 133 oradba 640 32
0x00000000 134 oradba 640 32
0x00000000 135 oradba 640 32
0x00000000 136 oradba 640 32
0x00000000 137 oradba 640 32
0x00000000 138 oradba 640 32
0x00000000 139 oradba 640 32
0x00000000 140 oradba 640 16 

--


To segfault is human, to blue screen is moronic...
~~~~~~~~~~~~
Matthew 
matthew@mattshouse.com
http://www.mattshouse.com


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