6 lines
554 B
Markdown
6 lines
554 B
Markdown
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- 当内存过量提交之后，会出现OOM
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- /proc/sys/vm/overcommit_memory
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- When this flag is 0, the kernel attempts to estimate the amount of free memory left when userspace requests more memory.
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- When this flag is 1, the kernel pretends there is always enough memory until it actually runs out.
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- When this flag is 2, the kernel uses a “never overcommit” policy that attempts to prevent any overcommit of memory. Note that user_reserve_kbytes affects this policy.
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- 感觉对于确定业务的设备， 应该使用2（禁用）比较好。
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