Kernel modes

By default, Adaptive Server starts in threaded mode, appearing as a single process on your operating system, and using native operating system threads for parallelism. By default, Adaptive Server handles I/O with native threads. In process mode, Adaptive Server appears as multiple processes on the operating system.

Process mode may not support features available in later versions of Adaptive Server. Sybase intends for you to use process mode as a fallback if you experience problems running in threaded mode.

NoteFor architecture reasons, process mode is not available on the Windows platform. Earlier versions of Adaptive Server on Windows also used a multithreaded, single-process kernel.

To determine the current mode of Adaptive Server, use:

select @@kernelmode
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threaded