iomap.modspec

目前最精确的磁盘模拟器的第3版

# DiskSim Storage Subsystem Simulation Environment (Version 3.0)
# Revision Authors: John Bucy, Greg Ganger
# Contributors: John Griffin, Jiri Schindler, Steve Schlosser
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MODULE iomap
PROTO int disksim_iomap_loadparams(struct lp_block *b);

PARAM tracedev		I	1
INIT tracemap[n] = i;

This specifies the traced device affected by this mapping.

PARAM simdev		S	1
TEST getdevbyname(s, &tracemap1[n], 0, 0)

This specifies the simulated device such requests should access.

PARAM locScale		I	1
TEST (i > 0) && (!(512 % i) || !(i % 512))
INIT tracemap2[n] = i;

This specifies a value by which a traced disk request location is multiplied to
generate the starting location (in bytes) of the simulated disk
request.  For example, if the input trace specifies locations in terms
of 512-byte sectors, a value of 512 would result in an equivalent
logical space of requests.

PARAM sizeScale		I	1
TEST i > 0
INIT tracemap3[n] = i;

This specifies a value by which a traced disk request size is
multiplied to generate the size (in bytes) of the simulated disk
request.

PARAM offset		I	0
TEST i >= 0		
INIT tracemap4[n] = i;

This specifies a value to be added to each simulated request's
starting location.  This is especially useful for combining multiple
trace devices' logical space into the space of a single simulated
device.