stubfuse
Simulates a FUSE mount point to determine its read and write performance.
Simulates a FUSE mount point and creates a large test file named hello. Use the
dd command to print the maximum read and write performance of this mount
point. The values give you a fair idea of the performance to expect from a MapR POSIX FUSE
client. For more information, see Data Fabric FUSE-Based POSIX Client
Note: Use an empty directory for the test, as the contents of this directory are emptied
during the test. The files that are created during the test are not present after the
test.
Attention: Export the path to
libfuse.so before running this
command. Run: export LD_LIBRARY_PATH="/opt/mapr/lib"Syntax
/opt/mapr/bin/stubfuse <mountpoint> [<options>] [-h|--help]Parameters
| Parameter | Description |
|---|---|
-h|--help |
Prints syntax and all supported options. |
| mountpoint | The simulated FUSE mount point. This parameter is required. |
| options | The options that can be specified with the command. Use -h or
--help to retrieve the list of supported options. |
Example
Retrieve the read and write performance for the
mount point, /tmp/egmnt:
- For a write test:
dd if=/dev/zero of=/tmp/egmnt/hello count=100k bs=128k oflag=directNote: The name of the output file has to behello. Else, the command will fail. - For a read test:
dd if=/tmp/egmnt/hello of=/dev/null count=100k bs=128kNote: The name of the input file has to behello. Else, the command will fail.
The output will look similar to the following results:
100+0 records in
100+0 records out
5120 bytes (5.1 kB) copied, 0.000233249 s, 22.0 MB/s