Avoid unnecessary I/O to track files' 'last access' timestamp: #95
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Unless the underlying filesystem is mounted with `noatime` then the system will keep track of and update a file's 'last access' time stamp with every `read` operation. Even if the filesystem optimizes this, it makes little sense to track this information for NuDB files that can be accessed tens of thousands of times per second. If the `O_NOATIME` option is defined, we set it when attempting to open or create files.
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yeah I agree |
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Unless the underlying filesystem is mounted with
noatimethen the system will keep track of and update a file's 'last access' time stamp with everyreadoperation.Even if the filesystem optimizes this, it makes little sense to track this information for NuDB files that can be accessed tens of thousands of times per second.
If the
O_NOATIMEoption is defined, we set it when attempting to open or create files.