Lines Matching refs:refcount
1 qcow2 L2/refcount cache configuration
15 This document attempts to give an overview of the L2 and refcount
56 The refcount blocks
63 The second level structures are called refcount blocks, are also one
67 Each block contains a number of refcount entries. Their size (in bits)
73 QEMU keeps a refcount cache to speed up I/O much like the
82 The part of the virtual disk that can be mapped by the L2 and refcount
105 The refcount cache is 4 times the cluster size by default. With the default
120 "refcount-cache-size": maximum size of the refcount block cache
138 - The default (and minimum) refcount cache size is 4 clusters.
141 memory as possible to the L2 cache before increasing the refcount
144 - At most two of "l2-cache-size", "refcount-cache-size", and "cache-size"
147 Unlike L2 tables, refcount blocks are not used during normal I/O but
150 refcount cache size won't have any measurable effect in performance
154 Before QEMU 2.12 the refcount cache had a default size of 1/4 of the
156 refcount cache is as small as possible unless overridden by the user.
194 - Only the L2 cache can be configured this way. The refcount cache