########################################################################
fileio benchmark tests
########################################################################

  $ fileio_args="fileio --file-num=4 --file-total-size=32M"

  $ sysbench $fileio_args prepare
  sysbench *.* * (glob)
  
  4 files, 8192Kb each, 32Mb total
  Creating files for the test...
  Extra file open flags: (none)
  Creating file test_file.0
  Creating file test_file.1
  Creating file test_file.2
  Creating file test_file.3
  33554432 bytes written in * seconds (*.* MiB/sec). (glob)

  $ ls test_file.*
  test_file.0
  test_file.1
  test_file.2
  test_file.3
  $ for i in $(seq 0 3)
  > do
  >   echo -n "test_file.$i: "
  >   echo $(wc -c < test_file.$i)
  > done
  test_file.0: 8388608
  test_file.1: 8388608
  test_file.2: 8388608
  test_file.3: 8388608

  $ sysbench $fileio_args run | grep FATAL
  FATAL: Missing required argument: --file-test-mode

  $ sysbench $fileio_args --events=150 --file-test-mode=rndrw run
  sysbench *.* * (glob)
  
  Running the test with following options:
  Number of threads: 1
  Initializing random number generator from current time
  
  
  Extra file open flags: (none)
  4 files, 8MiB each
  32MiB total file size
  Block size 16KiB
  Number of IO requests: 150
  Read/Write ratio for combined random IO test: 1.50
  Periodic FSYNC enabled, calling fsync() each 100 requests.
  Calling fsync() at the end of test, Enabled.
  Using synchronous I/O mode
  Doing random r/w test
  Initializing worker threads...
  
  Threads started!
  
  
  Throughput:
           read:  IOPS=*.* *.* MiB/s (*.* MB/s) (glob)
           write: IOPS=*.* *.* MiB/s (*.* MB/s) (glob)
           fsync: IOPS=*.* (glob)
  
  Latency (ms):
           min:                              *.* (glob)
           avg:                              *.* (glob)
           max:                              *.* (glob)
           95th percentile:         *.* (glob)
           sum: *.* (glob)
  
  $ sysbench $fileio_args --events=150 --file-test-mode=rndrd run
  sysbench *.* * (glob)
  
  Running the test with following options:
  Number of threads: 1
  Initializing random number generator from current time
  
  
  Extra file open flags: (none)
  4 files, 8MiB each
  32MiB total file size
  Block size 16KiB
  Number of IO requests: 150
  Read/Write ratio for combined random IO test: 1.50
  Periodic FSYNC enabled, calling fsync() each 100 requests.
  Calling fsync() at the end of test, Enabled.
  Using synchronous I/O mode
  Doing random read test
  Initializing worker threads...
  
  Threads started!
  
  
  Throughput:
           read:  IOPS=*.* *.* MiB/s (*.* MB/s) (glob)
           write: IOPS=*.* *.* MiB/s (*.* MB/s) (glob)
           fsync: IOPS=*.* (glob)
  
  Latency (ms):
           min:                              *.* (glob)
           avg:                              *.* (glob)
           max:                              *.* (glob)
           95th percentile:         *.* (glob)
           sum: *.* (glob)
  

  $ sysbench $fileio_args --events=150 --file-test-mode=seqrd run
  sysbench *.* * (glob)
  
  Running the test with following options:
  Number of threads: 1
  Initializing random number generator from current time
  
  
  Extra file open flags: (none)
  4 files, 8MiB each
  32MiB total file size
  Block size 16KiB
  Periodic FSYNC enabled, calling fsync() each 100 requests.
  Calling fsync() at the end of test, Enabled.
  Using synchronous I/O mode
  Doing sequential read test
  Initializing worker threads...
  
  Threads started!
  
  
  Throughput:
           read:  IOPS=*.* *.* MiB/s (*.* MB/s) (glob)
           write: IOPS=*.* *.* MiB/s (*.* MB/s) (glob)
           fsync: IOPS=*.* (glob)
  
  Latency (ms):
           min:                              *.* (glob)
           avg:                              *.* (glob)
           max:                              *.* (glob)
           95th percentile:         *.* (glob)
           sum: *.* (glob)
  

  $ sysbench $fileio_args --events=150 --file-test-mode=rndwr run
  sysbench *.* * (glob)
  
  Running the test with following options:
  Number of threads: 1
  Initializing random number generator from current time
  
  
  Extra file open flags: (none)
  4 files, 8MiB each
  32MiB total file size
  Block size 16KiB
  Number of IO requests: 150
  Read/Write ratio for combined random IO test: 1.50
  Periodic FSYNC enabled, calling fsync() each 100 requests.
  Calling fsync() at the end of test, Enabled.
  Using synchronous I/O mode
  Doing random write test
  Initializing worker threads...
  
  Threads started!
  
  
  Throughput:
           read:  IOPS=*.* *.* MiB/s (*.* MB/s) (glob)
           write: IOPS=*.* *.* MiB/s (*.* MB/s) (glob)
           fsync: IOPS=*.* (glob)
  
  Latency (ms):
           min:                              *.* (glob)
           avg:                              *.* (glob)
           max:                              *.* (glob)
           95th percentile:         *.* (glob)
           sum: *.* (glob)
  

  $ sysbench $fileio_args --events=150 --file-test-mode=rndwr --validate run | grep Validation
  Validation checks: on.

  $ sysbench $fileio_args --events=150 --file-test-mode=foo run
  sysbench *.* * (glob)
  
  FATAL: Invalid IO operations mode: foo.
  [1]
  $ sysbench $fileio_args cleanup
  sysbench *.* * (glob)
  
  Removing test files...
  $ ls

  $ sysbench $fileio_args --file-test-mode=rndrw --verbosity=2 run
  FATAL: Cannot open file 'test_file.0' errno = 2 (No such file or directory)
  WARNING: Did you forget to run the prepare step?
  [1]

########################################################################
GH-196:  fileio: validate file sizes on startup
########################################################################
  $ args="$fileio_args --verbosity=2"
  $ sysbench $args --file-total-size=1M prepare
  $ sysbench $args --file-test-mode=rndwr --events=1 run
  FATAL: Size of file 'test_file.0' is 256KiB, but at least 8MiB is expected.
  WARNING: Did you run 'prepare' with different --file-total-size or --file-num values?
  [1]
  $ sysbench $args cleanup
  $ sysbench $args --file-num=8 prepare
  $ sysbench $args --file-test-mode=rndwr --events=1 run
  FATAL: Size of file 'test_file.0' is 4MiB, but at least 8MiB is expected.
  WARNING: Did you run 'prepare' with different --file-total-size or --file-num values?
  [1]
  $ sysbench $args --file-num=8 cleanup
  $ sysbench $args --file-total-size=1M prepare
  $ sysbench $args --file-test-mode=seqwr --events=1 run
  $ sysbench $args cleanup
  $ unset args

########################################################################
GH-198: Tolerate misaligned test_files.
########################################################################
  $ args="$fileio_args --verbosity=2 --file-total-size=1M --file-num=128 --file-block-size=4097 --events=2"
  $ sysbench $args --file-total-size=1M prepare
  $ sysbench $args --file-test-mode=seqrd run
  $ sysbench $args --file-test-mode=rndrd run
  $ sysbench $args cleanup
  $ unset args

########################################################################
Extra file flags. Not testing 'direct' as that is not supported on all
tested platforms
########################################################################
  $ args="$fileio_args --file-total-size=16K --file-num=1"
  $ sysbench $args --file-extra-flags= prepare
  sysbench * (glob)
  
  1 files, 16Kb each, 0Mb total
  Creating files for the test...
  Extra file open flags: (none)
  Creating file test_file.0
  16384 bytes written in * seconds (* MiB/sec). (glob)

  $ sysbench $args --file-extra-flags=sync prepare
  sysbench * (glob)
  
  1 files, 16Kb each, 0Mb total
  Creating files for the test...
  Extra file open flags: sync 
  Reusing existing file test_file.0
  No bytes written.

  $ sysbench $args --file-extra-flags=dsync prepare
  sysbench * (glob)
  
  1 files, 16Kb each, 0Mb total
  Creating files for the test...
  Extra file open flags: dsync 
  Reusing existing file test_file.0
  No bytes written.

  $ sysbench $args --file-extra-flags=dsync,sync prepare
  sysbench * (glob)
  
  1 files, 16Kb each, 0Mb total
  Creating files for the test...
  Extra file open flags: sync dsync 
  Reusing existing file test_file.0
  No bytes written.

  $ sysbench $args --file-extra-flags= cleanup
  sysbench * (glob)
  
  Removing test files...

########################################################################
GH-229: "--file-fsync-freq=0" seems to prevent fsync() at end of test
########################################################################
  $ args="fileio --file-total-size=160K --file-num=10 --file-test-mode=seqwr"
  $ args="$args --file-fsync-freq=0 --file-fsync-end=1"
  $ args="$args --events=0 --time=1"
  $ sysbench $args prepare
  sysbench * (glob)
  
  10 files, 16Kb each, 0Mb total
  Creating files for the test...
  Extra file open flags: (none)
  Creating file test_file.0
  Creating file test_file.1
  Creating file test_file.2
  Creating file test_file.3
  Creating file test_file.4
  Creating file test_file.5
  Creating file test_file.6
  Creating file test_file.7
  Creating file test_file.8
  Creating file test_file.9
  163840 bytes written in * seconds (* MiB/sec). (glob)
  $ sysbench $args run
  sysbench * (glob)
  
  Running the test with following options:
  Number of threads: 1
  Initializing random number generator from current time
  
  
  Extra file open flags: (none)
  10 files, 16KiB each
  160KiB total file size
  Block size 16KiB
  Calling fsync() at the end of test, Enabled.
  Using synchronous I/O mode
  Doing sequential write (creation) test
  Initializing worker threads...
  
  Threads started!
  
  
  Throughput:
           read:  IOPS=0.00 0.00 MiB/s (0.00 MB/s)
           write: IOPS=[^0].* [^0].* MiB/s \([^0].* MB/s\) (re)
           fsync: IOPS=[^0].* (re)
  
  Latency (ms):
           min:                              *.* (glob)
           avg:                              *.* (glob)
           max:                              *.* (glob)
           95th percentile:         *.* (glob)
           sum: *.* (glob)
  
  $ sysbench $args --file-fsync-end=off run
  sysbench * (glob)
  
  Running the test with following options:
  Number of threads: 1
  Initializing random number generator from current time
  
  
  Extra file open flags: (none)
  10 files, 16KiB each
  160KiB total file size
  Block size 16KiB
  Using synchronous I/O mode
  Doing sequential write (creation) test
  Initializing worker threads...
  
  Threads started!
  
  
  Throughput:
           read:  IOPS=0.00 0.00 MiB/s (0.00 MB/s)
           write: IOPS=[^0].* [^0].* MiB/s \([^0].* MB/s\) (re)
           fsync: IOPS=0.00
  
  Latency (ms):
           min:                              *.* (glob)
           avg:                              *.* (glob)
           max:                              *.* (glob)
           95th percentile:         *.* (glob)
           sum: *.* (glob)