Diskspeed is a small program to test how well your disk performs. I've created it to test the performance of Smart Filesystem when compared with other filesystems. I wrote my own Diskspeed because the most populair Diskspeed 4.2 tool doesn't provide very realistic information. The reason why the information isn't very realistic (especially the directory manipulation tests) is because Diskspeed 4.2 doesn't use a large enough set of data for its tests (so it is easily cached resulting in unrealisticly high performance). This tool will try to provide more realistic results. This tool only works from a Cli or Shell. Below a summary of its command line options: CREATE (The Create Files test) By default this test creates 1000 files of 128 bytes each and measures the time required. You can change the number of files it creates using the FILES parameter. The size of each file can be controlled with the CREATESIZE option. The files created by this test are used by the Open/Close, Lock/Unlock, Load and Delete test. If any of those tests are specified then this test will automatically be executed as well. DELETE (The Delete Files test) This test measures the time it takes to delete all the files previously created by the Create Files test. The number and size of the files created by the Create Files test can be used to influence the results of this test. When you specificy the Delete Files test then the Create Files test will automatically be executed as well. DIRSCAN (The directory scan test) Measures how fast a directory can be read using the directory created by the Create Files test. When you specificy the Delete Files test then the Create Files test will automatically be executed as well. OPENCLOSE (The Open/Close test) This test open and closes random files earlier created by the Create Files test. It measures the time the filesystem requires to look up a random file and open it. It is very similair to the Lock/Unlock test. The speed of this test is very dependant on the number of files created by Create Files. If you for example use 10000 files then looking up a file in such a large directory can be a lot slower than with a directory of just 50 files (in this last case, those 50 files can often be kept in cache, which gives unrealistic results). When you specificy the Open/Close test then the Create Files and the Delete Files test will automatically be executed as well. LOCKUNLOCK (The Lock/Unlock test) Very similair to the Open/Close test. It locks random files earlier created by the Create Files test and unlocks them again. The speed difference with the Open/Close test and this test is usually quite small. When you specificy the Open/Close test then the Create Files and the Delete Files test will automatically be executed as well. LOAD (The Load test) This test is a combination of opening a file, reading it into memory and closing it again. It does this for random files using the files created earlier by the Create Files test. The number of files created and their size will have a great influence on the speed of this test. When you specificy the Open/Close test then the Create Files and the Delete Files test will automatically be executed as well. READ (The Read test) A file is created from which data is read sequentially using a specific buffer size. The speed of the reads themselves are measured. The time to create the file from which data is read is not included. Use READSIZE to set the buffer size. WRITE (The Write test) Tests the speed of writing data to a new file. An empty file is created and using a specific buffer size we add data to it. Only the actual writes are measured; the time to create the file and delete it again is not included. Use WRITESIZE to set the buffer size. SEEK (The Seek/Read test) This test seeks to random locations in a previously created file and reads a specific number of bytes from that location. The size of the file and the number of bytes read after seeking can have great influence on the speed of this test. Use SEEKSIZE to control the amount of bytes read at each seek position. Examples: --------- Diskspeed CREATE FILES=750 CREATESIZE=1024 -> Runs the Create Files and the Delete Files test, using 750 files of 1024 bytes each. Diskspeed READ READSIZE=512 Diskspeed READ READSIZE=4096 Diskspeed READ READSIZE=32768 Diskspeed READ READSIZE=262144 -> Runs the Read test 4 times in a row, with a different buffer size each time.