Commit 7580828a authored by Julien Michel's avatar Julien Michel

DOC: Fix formatting

parent 7b7499d4
......@@ -28,17 +28,7 @@ those values.
In addition to OTB specific environment variables, the following
environment variable are parsed by third party libraries and also
affect how OTB works:
* ``GDAL_CACHEMAX``: Gdal has an internal cache mechanism to avoid
reading or decoding again image chunks. This environnement variable
controls how much memory Gdal can use for caching. By default, Gdal
can use up to 5 percents of available RAM on system, which may be a
lot. Moreover, caching is only needed if the processing chain is
likely to request the same chunk several times, which is not likely
to happen for a standard pixel based OTB pipeline. Setting a lower
value allows to allocate more memory to OTB itself (using
applications ``-ram`` parameter or ``OTB_MAX_RAM_HINT`` environment
variable). If value is small (less than 100 000, it is assumed to be
in megabytes, otherwise, it is assumed to be in bytes.
* ``GDAL_CACHEMAX``: Gdal has an internal cache mechanism to avoid reading or decoding again image chunks. This environnement variable controls how much memory Gdal can use for caching. By default, Gdal can use up to 5 percents of available RAM on system, which may be a lot. Moreover, caching is only needed if the processing chain is likely to request the same chunk several times, which is not likely to happen for a standard pixel based OTB pipeline. Setting a lower value allows to allocate more memory to OTB itself (using applications ``-ram`` parameter or ``OTB_MAX_RAM_HINT`` environment variable). If value is small (less than 100 000, it is assumed to be in megabytes, otherwise, it is assumed to be in bytes.
* ``GDAL_NUM_THREADS``: Gdal can take advantage of multi-threading to
decode some formats. This variable controls the number of threads
Gdal is allowed to use.
......
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