Usage:
info = HDCACHEINFO(num)
Description:
Obtains information about a given hard drives (zero-based) cache that was opened by OPEN CACHE. A non-zero return value indicates a cache was found. The return value contains several members that provide the information.
The member names are:
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SIZE
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Size of the cache in bytes.
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MAXIOREQ
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Largest I/O request (in bytes) to cache.
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FLAGS
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Cache flags (Bit 0=Lazy Write, Bit 1=Partial Lazy Write).
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READHIT
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Number of cache read hits.
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READMISS
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Number of cache read misses.
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WRITEHIT
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Number of cache write hits.
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WRITEMISS
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Number of cache write misses.
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ERRORS
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Number of cache aborts (memory or lazy write failure)
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WRITEERRORS
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Number of lazy write failures
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Example:
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sub main()
ext("mount 0: 0 0x01")
ext("open cache 0")
info=hdcacheinfo(0)
if info then
printl("Size:", info.size)
printl("Max IO Request Cached:", info.maxioreq)
printl("Flags:0x", hex(info.flags))
printl("Read Hits:", info.readhit)
printl("Read Misses:", info.readmiss)
printl("Write Hits:", info.writehit)
printl("Write Misses:", info.writemiss)
printl("Errors:", info.errors)
printl("Lazy Write Errors:", info.writeerrors)
printl("")
else
printl("No cache found")
end if
ext("close cache 0")
ext("umount 0:")
end sub
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