SYNOPSISioreplay [OPERATION] -f <file> [OPTIONS]
DESCRIPTIONReplicates all IO syscalls defined in file by -f option.
ioreplay is primary used to replicate recorded IO system calls. In order to do that, several other helper functionality exists.
Usage: ioreplay -c -f <file> [-F <format>] [-o <out>] [-v]
- converts <file> in format <format> to binary form into file <out>
Usage: ioreplay -S -f <file> [-v]
- displays some statistics about syscalls recorded in <file> (must be in strace format)
Usage: ioreplay -P -f <file> [-F <format>] [-v]
- prints syscalls in normalized format
Usage: ioreplay -C -f <file> [-F <format>] [-i <file>] [-m <file>] [-v]
- checks whether local enviroment is ready for replaying traces recorded in <file>.
Usage: ioreplay -r -f <file> [-F <format>] [-t <mode>] [-s <factor>] [-b <number>] [-i <file>] [-m <file>] [-v]
- replicates traces recorded in <file>. Use -C prior to running this.
- -b --bind <number>
- bind replicating process to processor number <number>
- -c --convert
- file to binary form, see also -o
- -C --check
- checks that all operations recorded in the file specied by -f will succeed (ie. will result in same return code). It takes -i and -m into account. See also -p.
- -d --dont-fix
- turns off fixing of missing system calls (uncomplete strace output support)
- -f --file <file>
- sets filename to <file>
- -F --format <fmt>
- specifies input format of the file. Options: strace, bin. Check README for details. Default is strace.
- -h --help
- prints this message
- -i --ignore <file>
- sets file containing names which we should not touch during replaying. I.e. no syscall operation will be performed on given file.
- -m --map <file>
- sets containing file names mapping. When opening file, if there is mapping for it, it will open mapped file instead. See README for more information.
- -o --output <file>
- output filename when converting. Default: strace.bin.
- -p --prepare
- will prepare all files accesses recorded in file specified by -f, so every IO operation will return with same exit code as in original application. See also -i and/or -m parameters. Do nothing at the moment.
- -P --print
- prints recorded syscalls in normalized format regardless the format in which are the syscalls stored now
- -r --replicate
- will replicate every operation stored in file specified by -f
-s --scale <factor> scales delays between calls by the factor <factor>. Used with -r.
- -S --stats
- generate stats when processing the file. Can be combined with other options.
- -t --timing
- sets timing mode for replication. Options available: diff - default mode. makes sure that gaps between calls are the same as in the original run. asap - makes calls one just after another. exact - makes sure that calls are (approximately) done in the same time as in the original run
- (relative from start of the application)
-v --verbose be more verbose (do nothing at the moment)
- -V --version prints version and exits.