Sybase 12.4.2 User Manual
Page 490
Monitoring the buffer caches
470
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AvPF: Number of currently available buffers for prefetch quota
allocation
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Slots: Number of currently registered objects using buffer cache quota
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PinUser: Number of objects using pin quota
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PFUsr: Number of objects using prefetch quota
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Posted: Number of objects that are pre-planned users of quota
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UnPost: Number of objects that are ad hoc quota users
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Locks: Number of mutex locks taken on the buffer allocator
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Waits: Number of times a thread had to wait for the lock
•
-contention
displays many key buffer cache and memory manager locks
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AU: Current number of active users
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LRULks: Number times the LRU was locked (repeated for the temp
cache)
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woTO: Number times lock was granted without timeout (repeated for
the temp cache)
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Loops: Number times IQ retried before lock was granted (repeated for
the temp cache)
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TOs: Number of times IQ timed out and had to wait for the lock
(repeated for the temp cache)
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BWaits: Number of "Busy Waits" for a buffer in the cache (repeated
for the temp cache)
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IOLock: Number of times IQ locked the compressed I/O pool
(repeated for the temp cache)
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IOWait: Number of times IQ had to wait for the lock on the
compressed I/O pool (repeated for the temp cache)
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HTLock: Number of times IQ locked the blockmaps hash table
(repeated for the temp cache)
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HTWait: Number of times IQ had to wait for the blockmaps hash table
(repeated for the temp cache)
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FLLock: Number of times IQ had to lock the free list (repeated for the
temp cache)