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fsmark - benchmark for simulating synchronous write workloads…  more info»

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FS_MARK(1)                  User Commands                 FS_MARK(1)



NAME
       fs_mark - Benchmark synchronous/async file creation

SYNOPSIS
       fs_mark [OPTIONS] -d DIRECTORY [-d DIRECTORY ...]

DESCRIPTION
       fs_mark  is meant to give some low level bashing to file sys‐
       tems. The write pattern that it concentrates  on  is  heavily
       synchronous IO across multiple directories, drives, etc.

OPTIONS
       -h     Print usage and exit.

       -k     Keep files after each iteration.

       -F     Run until filesystem is full.

       -SSyncmethod
              Method to be used for synchronizing changes to disk:

              0: No Sync

              1: fsyncBeforeClose

              2: sync/1_fsync

              3: PostReverseFsync

              4: syncPostReverseFsync

              5: PostFsync

              6: syncPostFsync

       -Dnumber
              Use number subdirectories.

       -Nnumber
              Use  number  files in each subdirectory in round robin
              mode.

       -ddirectory
              Use directory. Can be specified multiple times.

       -llogfile
              Log to logfile.

       -Lnumber
              Repeat the benchmark number of iterations.

       -nnumber
              Use number of files per iteration.

       -pnumber
              Use number of total bytes file names.

       -rnumber
              Use number of random bytes in file names.

       -sbyte_count
              Use number of bytes as size of each file.

       -tnumber
              Use number of threads.

       -wnumber
              Use number (of bytes per write() syscall.

AUTHORS
       fs_mark was written by Ric Wheeler <ric@redhat.com>.

       This  manual  page  was   written   by   Martin   Steigerwald
       <ms@teamix.de>,  for  the  Debian project (but may be used by
       others).



fs_mark: Benchmark synchronouMarchn2012le creation        FS_MARK(1)
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