File System Caching
nBeware of host OS buffer cache
nHow to overcome?
ureducing buffer cache size
utruncate files (reallocates blocks)
uDirect I/O (DIO) (bypass cache)
uremount FS (invalidates cache)
ualternate between:
«normal I/O, DIO, MMAP I/O
6/30/2010
Data Test Program (dt)
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