| Re: Are dcachesize values supposed to be 0's? [message #27105 is a reply to message #27059] |
Sat, 09 February 2008 19:54  |
maratrus
Messages: 1495
Registered: August 2007
Location: Moscow
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Senior Member |
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Hi,
I suppose it is a normal behavior.
To decrease the overhead concerned with dcache accounting the following policy are used. There are two values which are responsible of dcache accounting. If dentry_cache size exceeded the first value the accouting is switched on and it becomes on until dentry_cache becomes smaller than the second value.
sysctl parameter ubc.dentry_watermark helps us to manage a dcache accounting.
ubc.dentry_watermark = 0 100 means that accounting is switched on if dcache size exceeded 10% of memory and switched off if it will take 0%.
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