osd: os: skip checking pg_meta object existance in FileStore #6870
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pg_meta object in FileStore is actually a logical object without any significant information. All it data writes to omap (leveldb), and actually no competition condition for the real object in FileStore Based on the optimazation, we further reduce _omap_setkeys() execution time (123.784us to 108.444us, about 15%), and save cpu usage 0.5% globally Signed-off-by: Ning Yao <zay11022@gmail.com>
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Dec 23, 2015
osd: os: skip checking pg_meta object existance in FileStore Reviewed-by: Sage Weil <sage@redhat.com>
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pg_meta object in FileStore is actually a logical object without any significant information.
All it data writes to omap (leveldb), and actually no competition condition for the real object in FileStore
Based on the optimazation, we further reduce _omap_setkeys() execution time (123.784us to 108.444us, about 15%), and save cpu usage 0.5% globally
Signed-off-by: Ning Yao zay11022@gmail.com