SHMALL パラメータの値が ipcs コマンドの結果と異なる理由
Issue
-
SHMALL パラメータは /proc/sys/kernel/shmall で 16777216 に設定されていますが、コマンド "ipcs -l" を使用すると、次の結果が表示されます。
[root@test kernel]# ipcs -l ------ Shared Memory Limits -------- max number of segments = 8192 max seg size (kbytes) = 33554432 max total shared memory (kbytes) = 67108864 min seg size (bytes) = 1 ------ Semaphore Limits -------- max number of arrays = 8192 max semaphores per array = 250 max semaphores system wide = 256000 max ops per semop call = 32 semaphore max value = 32767 ------ Messages: Limits -------- max queues system wide = 31744 max size of message (bytes) = 65536 default max size of queue (bytes) = 65536 -
どうして値が異なるのですか?
Environment
- Red Hat Enterprise Linux 5
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