Threads options

Option

Default

-threads

no

Enables thread support. With this option set, Purify keeps track of threads and uses appropriate mutex locks to operate in a thread-safe manner.

Purify enables this automatically when your program is linked with a supported thread package.

Use -threads=no to disable thread support.

-max-threads

20

Specifies the maximum number of threads in a program. If you expect to use more than 20 threads, set this option to avoid overflowing the tables that record thread data.

-thread-report-at-exit

no

Specifies whether or not Purify prints the threads summary when the program exits. Use -thread-report-at-exit=no to suppress printing a thread summary at exit.

Purify enables this automatically when your program is linked with a supported thread package.

-thread-stack-change

0x1000

Specifies the minimum size of a change to the stack pointer that signals a thread context switch.

You might need to increase this value for programs that allocate large data structures on the stack. You might need to decrease it for multi-threaded programs that create threads whose stacks are very close to one another.

This option is available only on Solaris and HP-UX, and only when the enabling option -enable-thread-stack-change is set. The default for -enable-thread-stack-change is true on Solaris, but false on HP-UX.