Previous topic |
Next topic |
Contents |
Contact z/OS |
Library |
PDF
VCTRSAVE z/OS Language Environment Programming Reference SA38-0683-00 |
|
Derivation: VeCToR environment to be SAVEd VCTRSAVE specifies if any language in the application uses the vector facility when user-written condition handlers are called. The default values for non-CICS applications is VCTRSAVE(OFF). VCTRSAVE is ignored under CICS®. Syntax .-OFF-. >>-Vctrsave--(--+-----+--)------------------------------------->< '-ON--'
CICS considerationVCTRSAVE is ignored under CICS. z/OS® UNIX considerationsThe VCTRSAVE option applies to the entire enclave and all threads within the enclave. Performance considerationWhen a condition handler plans to use the vector facility (that is, run any vector instructions), the entire vector environment must be saved on every condition and restored on return to the application code. You can avoid this extra work by specifying VCTRSAVE(OFF) when you are not running an application under vector hardware. |
Copyright IBM Corporation 1990, 2014
|