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WSupported on Windows
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USupported on Unix
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NSupported in Synergy .NET
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The IU_KEYTHREADS environment variable specifies the number of key threads.
Value
The number of key threads, in the range 1 – 32. The default is the number of keys, up to 32.
Discussion
Due to isutl enhancements made in Synergy/DE 11.1.1d, running isutl on large files with many keys performs faster than in previous versions, but it also requires more disk space. Setting IU_KEYTHREADS to a value smaller than the number of keys causes isutl to run in smaller batches (based on the number chosen), which will consume less disk space. However, it may not perform quite as fast, as it rereads the entire data file (.is1) multiple times.
Setting location
The environment.
Used by
isutl utility, fconvert utility
See also
IU_FEEDERTHREADS for more information about how isutl uses multi-threading.
Examples
On Unix,
IU_KEYTHREADS=20 ;export IU_KEYTHREADS
